8-13 March 2006
Indian Institute of Science
Europe/Zurich timezone
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Contribution List

Displaying 202 contributions out of 202
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
Presented by Tim BARKLOW on 11 Mar 2006 at 10:00
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
We conducted a series of beam tests of prototype TPCs at the KEK PS using GEMs or microMEGAS as a detection device. The prototypes were operated successfully under a magnetic field of up to 1 tesla. Experimental results, such as pad response and spatial resolution as functions of drift distance, are presented with a special emphasis upon comparison to the expectations from an analytical calcul ... More
Presented by Makoto KOBAYASHI on 12 Mar 2006 at 15:10
Type: Oral Session: ACFA - ILCSC Meeting
on 11 Mar 2006 at 18:00
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
This talk describes a calorimeter concept that will use cherenkov radiator plates to partially replace the metal plates in a conventional ILC hadron calorimeter design. The cherekov radiator will have fine segmentations and will be readout by SiPMs. Energy and spatial information of the electromagnetic components in hadron showers can be measured. Combined with information from thin plastic sc ... More
Presented by Dr. Zhao ZHAO on 12 Mar 2006 at 11:36
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by Prof. James BRAU on 10 Mar 2006 at 10:12
Type: Oral Session: Higgs/Gamma-Gamma
Track: Higgs and EWSB
We examine the resolving power of an e-gamma collider in the context of HWW vertices. This has the advantage over an e+e- collider in being able to dissociate them from any deviations in the ZHH vertex. We construct several dynamical variables which may be used to constrain various possible form factors in the HWW vertex.
Presented by Mamta DAHIYA on 12 Mar 2006 at 15:00
Type: Oral Session: Gamma-gamma, e-gamma and e-e- Physics and Technology
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
We study the sensitivity of testing the anomalous gauge couplings (g_HVV) of the Higgs boson in the formulation of linearly realized gauge symmetry via the processes gamma gamma to ZZ and gamma gamma to WWWW at polarized and unpolarized photon colliders based on e+e- linear colliders of c.m.energies 500 GeV, 1 TeV, and 3 TeV. Signals beyond the standard model (SM) and SM backgrounds are care ... More
Presented by Dr. Bin ZANG on 12 Mar 2006 at 11:40
Type: Oral Session: Higgs/Gamma-Gamma
Track: Higgs and EWSB
Doubly charged scalars, predicted in many models having exotic Higgs representations, can in general have lepton-number violating (LFV) couplings. The basis of most searches for this charged scalar has been to look for its direct production and its subsequent decay to like-sign final state leptons. In this work we show that by using an associated monoenergetic final state photon seen at a futu ... More
Presented by Dr. SANTOSH RAI on 12 Mar 2006 at 14:40
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Uladzimir DRUHAKOU on 12 Mar 2006 at 10:00
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by George MAVROMANOLAKIS on 10 Mar 2006 at 09:36
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by Goetz GAYCKEN on 10 Mar 2006 at 09:18
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by Felix SEFKOW on 10 Mar 2006 at 11:00
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by Jaroslav CVACH on 10 Mar 2006 at 11:18
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The talk will present recent progress in the design and characterisation of CMOS pixel sensors at LBNL. The talk will report results of lab tests, beam tests and radiation hardness tests carried out at LBNL on a test structure with pixel of various sizes. We will also report the first preliminary results of a detailed characterisation of backthinned CMOS pixel sensors and discuss future activ ... More
Presented by Devis CONTARATO on 10 Mar 2006 at 09:25
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
A calorimeter energy calibration method has been developed for ILC detectors. The method uses the center mass energy of the accelerator as a constraint. It was shown that using the energy conservation law it is possible to do an ECAL and HCAL cross calibration in a way to reach a good energy resolution for the simple calorimeter hit energy sum. The Application of this method in LDC detect ... More
Presented by Dr. Vasiliy MORGUNOV on 13 Mar 2006 at 09:40
Type: Oral Session: Plenary
Track: Plenary
This talk will briefly review the physics motivation for developing high resolution calorimetry for ILC detectors. Electromagnetic and hadronic calorimeter designs will be described with details of recent and projected prototype modules and beam tests.
Presented by Andrew WHITE on 9 Mar 2006 at 14:45
Type: Oral Session: Plenary
Track: Plenary
Presented by Goetz GAYCKEN on 13 Mar 2006 at 15:15
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
The Minimal Supersymmetric Extension of the Standard Model (MSSM) predicts the existence of new charged and neutral Higgs bosons. The pair creation of these new particles at the multi-TeV e+e- Compact Linear Collider (CLIC), followed by decay cascades into Standard Model particles, were simulated along with the corresponding background. Beam-beam effects such as ISR, beamstrahlung and hadronic ... More
Presented by Dr. Arnaud FERRARI on 13 Mar 2006 at 09:20
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
The design and expected performance of tungsten - silicon "nose cone" calorimeters for the upgrade of the Phenix experiment at BNL will be described. The calorimeters will provide precision measurements of individual electromagnetic showers, aid in gamma / pi0 / eta / hadron identification, and aid in jet finding, jet energy, and impact position measurements. Two photon separation is exp ... More
Presented by Dr. William COOPER on 12 Mar 2006 at 12:12
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The performances of the MT3-TPC prototype (Multi-Technology Test TPC) had been studied using different gas amplification devices. The resolution is reconsidered under various conditions and compared to parametrized simulation.
Presented by Akira SUGIYAMA on 12 Mar 2006 at 14:25
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Reports for all 4 concepts: GLD, SiD, LDC, 4th
Presented by Mr. Patrick LE DU, Hiroyuki MATSUNAGA, Usha MALLIK, Gunter ECKERLIN, Dr. Sorina POPESCU on 11 Mar 2006 at 09:35
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Do we need it? What are the implications? How to implement it?
Presented by Mr. Patrick LE DU, G. Fisk on 13 Mar 2006 at 09:15
Type: Oral Session: Plenary
Track: Plenary
Presented by Mr. Patrick LE DU, Patrick LE DU on 13 Mar 2006 at 15:35
Type: Oral Session: Plenary
Track: Plenary
Presented by Mark OREGLIA on 13 Mar 2006 at 14:40
Type: Oral Session: DCR - Physics
Track: DCR - Physics
Discussion on the DCR Electroweak and BSM
Presented by Klaus MONIG on 12 Mar 2006 at 11:50
Type: Oral Session: DCR - Physics
Track: DCR - Physics
Discussion on DCR on Higgs Physics
Presented by Alexei RASPEREZA on 12 Mar 2006 at 11:00
Type: Oral Session: Plenary
Track: Plenary
Presented by Abdelhak DJOUADI on 9 Mar 2006 at 14:30
Type: Oral Session: Plenary
Track: Plenary
Presented by Abdel-hak DJOUADI, Klaus MOENIG, M. YAMAGUCHI, Mark OREGLIA, Joe LYKKEN, John JAROS, Akiya MIYAMOTO, Ties BEHNKE, Chris DAMERELL on 12 Mar 2006 at 16:30
Type: Oral Session: DCR - Physics
Track: DCR - Physics
DCR SUSY section will be discussed
Presented by Abdelhak DJOUADI on 12 Mar 2006 at 11:25
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by Julien FLEURY on 10 Mar 2006 at 09:54
Type: Oral Session: SUSY Particles
Track: SUSY Particles
We present a study of various SUSY scenarios in which the lightest supersyummertric particle (LSP) is the gravitino and the next-to-lightest supersymmetric particle (NLSP) is a metastable stau with lifetimes ranging from seconds up to several years. At the ILC such heavy stau's are copiously produced either directly or through cascade decays. A proper choice of the cms energy allows one to sto ... More
Presented by Felix SEFKOW on 11 Mar 2006 at 11:20
Type: Oral Session: Plenary
Track: Plenary
Presented by Hwanbae PARK on 10 Mar 2006 at 14:00
Type: Oral Session: Plenary
Track: Plenary
The LDC (Large Detector Concept) is one of several concepts for a proposed detector at the International Linear Collider. The LDC is characterized by a tracking system with a large volume TPC and a powerful SI tracking component, and a calorimeter optimiszed for particle flow. In the design particular emphasis has been put on a detector which is very robust and highly efficient. In this talk ... More
Presented by Ties BEHNKE on 10 Mar 2006 at 14:30
Type: Oral Session: Plenary
Track: Plenary
The Silicon Detector Concept stresses silicon/tungsten electromagnetic calorimetry; compact, high precision, and low mass silicon tracking; pixel vertex detection with forward disks; 5 Tesla solenoidal coil; and highly segmented hadron calorimetry and muon identification. Physics requirements, the ILC environment, and costs drive the design. The high magnetic field offers unsurpassed momentum ... More
Presented by John JAROS on 10 Mar 2006 at 15:00
Type: Oral Session: Plenary
Track: Plenary
The 4th Concept detector consists of four detector systems, a small-pixel vertex detector, a high-resolution TPC, a new multiple-readout fiber calorimeter and a new dual-solenoid iron-free muon system. We will discuss the design of a comprehension facility that measures and identifies all partons of the standard model, including hadronic W and Z decays, with high precision and high effici ... More
Presented by John HAUPTMAN on 10 Mar 2006 at 15:30
Type: Oral Session: Plenary
Track: Plenary
Presented by Satoru YAMASHITA on 9 Mar 2006 at 16:50
Type: Oral Session: SUSY Particles/Cosmological Connections
Track: SUSY Particles
If the cosmic dark matter consists of weakly interacting massive particles, these particles should be produced in reactions at the next generation of high energy accelerators. Measurements at these accelerators can then be used to determine the microscopic properties of the dark matter. From this, we can predict the cosmic density, the annihilation cross sections, and the cross sections releva ... More
Presented by JoAnne HEWETT on 10 Mar 2006 at 09:20
Type: Oral Session: Loop Calculations/SUSY Particles
Track: SUSY Particles
In order to establish supersymmetry at future colliders, it is not sufficient to discover new particles, but the identity of gauge couplings and the corresponding Yukawa couplings between gauginos, sfermions and fermions needs to be verified. In detailed studies it was found that the SUSY-Yukawa couplings of the electroweak sector can be studied with great precision at the ILC, but a similar a ... More
Presented by Dr. Ayres FREITAS on 11 Mar 2006 at 10:00
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
Recent achievements with CMOS sensors of the MIMOSA series will be reported, including test results of prototypes featuring radiation tolerant pixels operated at room temperature, fast read-out architectures with integrated signal discrimination, etc. Work in progress and plans for 2006 will be outlined.
Presented by Marc WINTER on 10 Mar 2006 at 10:05
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
Presented by Laci ANDRICEK on 10 Mar 2006 at 09:00
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
MPPC is the new type photon sensor of semiconductor, which is under development with Hamamatu Photonics company. It consits of handreds of small pixels in a sensor. Each pixel acts as a digital device to a photon. The MPPC is supposed to be used plastic scintillator calorimeter with Tungsten absorber. The development situation is reported.
Presented by Prof. Tohru TAKESHITA on 10 Mar 2006 at 09:00
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
Results and simulations of a TPC with an endplate with a Micromegas or a GEM amplification followed by a readout by a VLSI CMOS chip Medipix2 will be presented. The steps in progress towards the realisation of a sizeable prototype, within the EUDET program, will be presented: improvement of the protection against breakdown, integration of the Micromegas grid onto the wafer (InGrid), and design ... More
Presented by Paul COLAS on 13 Mar 2006 at 11:25
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
We present the status of DigiSim, a package designed for parametric simulation of the conversion of (GEANT4) energy deposits into digitally stored "hits", specifically for the ILC detector(s). DigiSim is well integrated to two of the most widely used reconstruction frameworks for the ILC, namely org.lcsim/java and Marlin/C++. Simple implementations exist for the most common processes, such a ... More
Presented by Vishnu ZUTSHI on 11 Mar 2006 at 09:20
Type: Oral Track: Calorimetry and Muons
The method and results of the direct readout of the Hadron Calorimeter Scintillation Tiles by Silicon Photomultiplier will be presented. First results of mathematical simulation of the scintillator tile with silicon photomultiplier on base Geant4. The prelimenary results of the cosmic signal with scintillator tile 3x3 cm and 5 mm thickness and Silicon photomultiplier with area 1x1 mm was ... More
Presented by Valeri SAVELIEV
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
on 10 Mar 2006 at 09:50
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Markiewicz, T. on 11 Mar 2006 at 10:00
Type: Oral Session: SUSY Particles
Track: SUSY Particles
on 11 Mar 2006 at 11:40
Type: Oral Session: SUSY Particles/Cosmological Connections
Track: SUSY Particles
on 10 Mar 2006 at 10:10
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Karsten BUESSER on 11 Mar 2006 at 10:30
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
on 10 Mar 2006 at 12:05
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Klaus MONIG on 11 Mar 2006 at 11:00
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
on 13 Mar 2006 at 12:15
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
Numerous non-standard dynamics are described by contact-like effective interactions that can manifest themselves only through deviations of the cross sections from the Standard Model predictions. If one such deviation were observed, it should be important to definitely identify, to a given confidence level, the actual source among the possible non-standard interactions that in principle can ex ... More
Presented by Alexander PANKOV on 12 Mar 2006 at 14:45
Type: Oral Session: Plenary
Track: Plenary
Presented by Philip BURROWS on 9 Mar 2006 at 12:30
Type: Oral Session: Test Beams
Track: Test Beams
Presented by Katsumasa IKEMATSU on 12 Mar 2006 at 09:40
Type: Oral Session: Plenary
Track: Plenary
Presented by KEN PEACH on 9 Mar 2006 at 12:15
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Event selection strategies. How to separate the difficult physics channels from background.
Presented by Klaus MONIG, Z. Zhang on 13 Mar 2006 at 09:00
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
The production of a charged lepton ($\ell = e,\mu$) pair with a large missing energy at a linear collider is discussed as a means of distinguishing the minimal supersymmetry (MSSM) scenario from that with large extra dimensions (ADD) for parameter ranges where the total cross-sections are comparable for both. Analyses in terms of event shape variables, specifically sphericity and thrust, are s ... More
Presented by Prof. Probir ROY on 12 Mar 2006 at 15:10
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by Aldo PENZO on 11 Mar 2006 at 11:46
Type: Oral Session: Plenary
Track: Plenary
Presented by Klaus DESCH on 9 Mar 2006 at 10:25
Type: Oral Session: New Physics/Top and QCD
Track: Top and QCD
The quantitative impact of NLO-QCD corrections for searches of large and warped extra dimensions at hadron colliders is investigated for the Drell-Yan process. The K-factor for various distributions at hadron colliders are presented. Factorisation/renormalisation scale dependence and uncertainties due to various parton distribution functions of these distributions are studied.
Presented by Prof. Prakash MATHEWS on 12 Mar 2006 at 09:00
Type: Oral Session: Plenary
Track: Plenary
Presented by Roberto PETRONZIO on 9 Mar 2006 at 12:00
Type: Oral Session: Test Beams
Track: Test Beams
Presented by Mr. Marcel DEMARTEAU, Marcel DEMARTEAU on 12 Mar 2006 at 09:00
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
In the Very Forward Region of the detectors for the International Linear Collider two subsystems will be situated: LumiCal and BeamCal. These detectors cover a polar angle range from 82 mrad down to a 4 mrad. LumiCal and BeamCal give the possibility of the detection of single high energetic particles in their coverage region. Despite this a precise measurement of the total luminosity will be ... More
Presented by Dr. Christian GRAH on 12 Mar 2006 at 09:30
Type: Oral Session: Gamma-gamma, e-gamma and e-e- Physics and Technology
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
We discuss how the CP quantum numbers of a neutral Higgs boson may be probed using fermion polarization at a photon collider. To this aim we construct polarization asymmetries which can isolate the contribution of a Higgs boson phi in gamma gamma -> f fbar, f = tau/t, from that due to the QED continuum. This can help in getting information on the gamma-gamma-phi coupling in case phi is a C ... More
Presented by Mr. Ritesh SINGH on 12 Mar 2006 at 11:00
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
FeynHiggs is a program for computing MSSM Higgs-boson masses and related observables, such as mixing angles, branching ratios, couplings and production cross sections, including state-of-the-art higher-order contributions (also for the case of explicit CP-violation). The centerpiece is a Fortran library for use with Fortran and C/C++. Alternatively, FeynHiggs has a command-line, Mathematica, a ... More
Presented by Dr. Sven HEINEMEYER on 10 Mar 2006 at 11:20
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Grahame BLAIR on 12 Mar 2006 at 14:55
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
The code to fit parameters of reconstructed tracks using weight matrix of measurements and solving system of equations to minimize chi square of the track residuals was ported from hep.lcd package to org.lcsim package. The performance of the fitter is reported.
Presented by Dr. Nikolai SINEV on 11 Mar 2006 at 09:40
Type: Oral Session: Plenary
Track: Plenary
The tracking in the forward region of an ILC detector is reviewed. The needs for forward tracking are discussed and possible designs and their performance are shown.
Presented by Klaus MONIG on 9 Mar 2006 at 15:05
Type: Oral Session: GDE Design and Cost Board Meeting
on 8 Mar 2006 at 14:00
Type: Oral Session: Plenary
Track: Plenary
Presented by William WILLIS on 10 Mar 2006 at 16:55
on 8 Mar 2006 at 14:00
Type: Oral Session: Global Design Effort
Presented by Kaoru YOKOYA on 11 Mar 2006 at 16:30
Type: Oral Session: Plenary
Track: Plenary
The development and accomplishments of the GDE will be reviewed. In particular, the baseline configuration will be discussed, as well as efforts getting underway to develop a reference design and cost.
Presented by Barry BARISH on 9 Mar 2006 at 09:15
Session: GLD Meeting
on 8 Mar 2006 at 14:00
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Presented by Hiroyuki MATSUNAGA
Type: Oral Session: Higgs/Top and QCD/Gamma-Gamma
Track: Top and QCD
We explore the predictions for the total hadronic gamma gamma cross-sections in a mini-jet model, which includes the effect of soft-gluon resummation. The non-perturbative parameters in the model are determined from the values obtained in a good fit to the pp and proton-antiproton data and the Vector Meson Dominance Model. Recently we studied dependence of the parameters for th ... More
Presented by Rohini GODBOLE on 11 Mar 2006 at 11:40
Type: Oral Session: Plenary
Track: Plenary
Presented by Dr. Alex FINCH on 13 Mar 2006 at 16:45
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by Andrew WHITE on 11 Mar 2006 at 11:00
Type: Oral Session: Gamma-gamma, e-gamma and e-e- Physics and Technology
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
Measurement of the heavy neutral MSSM Higgs bosons H and A at the Photon Collider is considered for the parameter range corresponding to the so-called "LHC wedge". The main background for the measured process, gamma+gamma->A,H->b+bbar, is due to the direct heavy-quark production, gamma+gamma->Q+Qbar. Here assumptions and results of two analyses which take into account NLO QCD corrections to th ... More
Presented by Prof. Maria KRAWCZYK on 12 Mar 2006 at 12:00
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
Search for the Higgs boson is the principal motivation of the LHC experiments. Potential of discovery will be presented from simulation studies by both CMS and ATLAS collaborations in the context of beyond Standard Model scenarios. We shall also discuss the relevant experimental issues.
Presented by Prof. Kajari MAZUMDAR on 10 Mar 2006 at 11:00
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
This talk presents the legacy of the four LEP experiments ALEPH, DELPHI, L3 and OPAL in the field of the search for Higgs bosons which are predicted within the framework of the Minimal Supersymmetric Standard Model (MSSM). It will focus on the search for neutral Higgs bosons. The data of the four collaborations are statistically combined and show no signicant excess of events which would indic ... More
Presented by Philip BECHTLE on 13 Mar 2006 at 09:00
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
The latest results on searches for the Higgs boson in the standard model and minimal extensions of the standard model from the Dzero experiment will be reported.
Presented by Mr. Marcel DEMARTEAU on 13 Mar 2006 at 11:00
Type: Oral Session: Higgs/Gamma-Gamma
Track: Higgs and EWSB
Search for the Higgs boson is the principal motivation of the LHC experiments. Potential of discovery will be presented from simulation studies by both CMS and ATLAS collaborations in the Standard Model scenario.
Presented by Satyaki BHATTACHARYA on 12 Mar 2006 at 14:00
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
Feasibility of the measurement of the trilinear self-coupling of the Higgs boson is studied. Double higgs strahlung as well as WW fusuion processes are under investigation.
Presented by Dr. Pascal GAY on 10 Mar 2006 at 11:40
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
We investigate the double Higgs production process at the ILC, focusing on the measurement of the trilinear self coupling of the Higgs boson in the fusion channel. The sensitivity of this measurement is discussed in the Higgs mass range 140-200 GeV at a center of mass energy between 1 TeV to 1.5 TeV.
Presented by Dr. Aura ROSCA on 11 Mar 2006 at 09:40
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
Abstract not available
Presented by Tom RIZZO on 10 Mar 2006 at 09:00
Type: Oral Session: History of LC
Presented by Loew GREGORY on 11 Mar 2006 at 12:45
Type: Oral Session: Plenary
Track: Plenary
Presented by Kaoru YOKOYA on 9 Mar 2006 at 11:45
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Markiewicz, T. on 12 Mar 2006 at 09:00
Type: Oral Session: Plenary
Track: Plenary
Presented by Barry BARISH, Amit ROY, Vinod SAHNI on 9 Mar 2006 at 11:30
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Grahame BLAIR on 12 Mar 2006 at 14:40
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
I will have a review of our DESY/U.Hamburg team's recent ILC TPC R&D activities. In particular, I will report the results of 2 track separatability test using UV laser. I will also summarize our future plan including EUDET related issue concerning the large prototype field cage construction and preparation for test beam.
Presented by Katsumasa IKEMATSU on 13 Mar 2006 at 11:00
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Toshiaki TAUCHI on 10 Mar 2006 at 11:20
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Karsten BUESSER on 10 Mar 2006 at 11:35
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Burrows, P. on 10 Mar 2006 at 11:50
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
We study the dilepton-dijet signal in the dominant Higgs production channel at a linear e+ e- collider. We show that by taking a simple ratio between cross-sections of two different final states different new physics scenarios can be identified. The case of distinguishing radions from Higgs is consisdered. We also highlight the effects of new particles in the loop contributing to the H -> gg d ... More
Presented by Dr. SANTOSH RAI on 11 Mar 2006 at 09:00
Type: Oral Session: Plenary
Track: Plenary
Presented by Anil KAKODKAR on 9 Mar 2006 at 09:05
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Presented by Satish DHAWAN, Ray LARSEN on 13 Mar 2006 at 09:20
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
In our earlier investigations of radiation damage effects in a CCD based detector we observed that some parameters of the radiation damage related processes were very different from the common perception. For example, trapping time of electrons by trapping centers created by irradiation was few orders of magnitude larger than it was believed it should be. Last year we did additional experi ... More
Presented by Dr. Nikolai SINEV on 11 Mar 2006 at 11:25
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Presented by Usha MALLIK on 11 Mar 2006 at 09:00
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The Linear Collider Flavour Identification (LCFI) Collaboration is developing sensors, electronic systems and mechanical support structures necessary for the construction of a high performance vertex detector at the ILC and investigating the contribution such a vertex detector can make to the physics accessible at the ILC. Extremely low mass support structures will be required for the sensor m ... More
Presented by Dr. Steve WORM on 12 Mar 2006 at 11:25
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
Recent results are presented on the design and testing of silicon sensors for the ILC vertex detector and of the associated readout electronics. The sensors discussed are the Column Parallel Charge-Coupled Device (CPCCD) and the In-situ Storage Image Sensor (ISIS), both of which have the potential to satisfy the requirements for operation at the ILC. Progress with the development of the CPCCD ... More
Presented by Dr. Konstantin STEFANOV on 11 Mar 2006 at 11:00
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
A vertex detector concept of the Linear Collider Flavor Identification (LCFI) collaboration, which studies pixel detectors for heavy quark flavour identification, has been implemented in simulations for c-quark tagging in scalar top studies. The production and decay of scalar top quarks (stops) is particularly interesting for the development of the vertex detector as only two c-quarks and mis ... More
Presented by Dr. Andre SOPCZAK on 11 Mar 2006 at 12:10
Type: Oral Session: Plenary
Track: Plenary
Presented by Francois RICHARD on 9 Mar 2006 at 14:00
Type: Oral Session: Plenary
Track: Plenary
Presented by Sunanda BANERJEE on 12 Mar 2006 at 17:20
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
We present final analyis results of cosmic ray data taken with a Large-Area Micromegas TPC by the Berkeley-Orsay-Saclay (BOS) collaboration. The TPC gas chamber for these R&D studies was 50 cm diameter and 50 cm long and was operated with three gas mixtures, Ar:CF4 3%, ArCH4 (P10) and Ar:Isobutane 5% in magnetic fields up to 2 tesla. A large-area, 38 cm diameter, copper Micromegas electro-mesh ... More
Presented by Michael T. RONAN on 12 Mar 2006 at 14:00
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Sudhir DIXIT on 12 Mar 2006 at 14:10
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Prof. Valery TELNOV on 12 Mar 2006 at 09:20
Type: Oral Track: Machine Detector Interface
Configuration of beamlines, the crossing angle, removal of disrupred beams, beamdump, path of laser beams and required modifications of the interaction region and detector are briefly considered.
Presented by Prof. Valery TELNOV
Type: Oral Session: Higgs/Top and QCD/Gamma-Gamma
Track: Top and QCD
We investigate the possibilities of studying possible new physics in various processes of t-quark production using the kinematical distributions of the secondary lepton coming from decay of t-quarks. We show that the angular distributions of secondary lepton are insensitive the anomalous tbW vertex and hence is a pure probe of new physics in a generic process of t-quark production. The energy ... More
Presented by Mr. Ritesh SINGH on 11 Mar 2006 at 11:20
Type: Oral Session: Higgs/Gamma-Gamma
Track: Higgs and EWSB
The predictions by Standard Model (SM) of particle physics are in excellent agreement with experiments till date. But still theoretically SM has well emphasized problems like fine-tuning and hierarchy problem. These problems are associated with the Higgs sector of SM. It is widely believed that some new physics will take over from SM at TeV scale. Many such new physics models have been ext ... More
Presented by Dr. Naveen GAUR on 12 Mar 2006 at 14:20
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
Among the viable alternatives to the Standard Higgs Mechanism is the recently proposed Little Higgs models. The advantage here is that the model has an elementary light neutral scalar particle without the hierarchy problem. The model has two heavy charged gauge bosons W_H and one heavy neutral gauge boson, Z_H, in addition to the standard W and Z. We have investigated the W pair production ... More
Presented by Dr. Poulose POULOSE on 13 Mar 2006 at 11:25
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
We examine the possibility of detecting signals of split supersymmetry in the loop- induced decay h --> gamma gamma of the Higgs boson at the Large Hadron Collider, where charginos, as surviving light fermions of the supersymmetric spectrum, can contribute in the loop. We perform a detailed study of uncertainties in various parameters involved in the analysis, and thus the net uncertainty i ... More
Presented by Mr. Sudhir GUPTA on 13 Mar 2006 at 12:00
Type: Oral Session: SUSY Particles
Track: SUSY Particles
We propose a model of low scale gravity mediated supersymmetry breaking in Randall-Sundrum type warped extra dimensions. In our setup, both of the visible sector and the hidden sector (supersymmetry breaking sector) co-exist on infrared (IR) brane. Supersymmetry breaking is transmitted through non-renormalizable contact interactions among visible and hidden sector fields as the same as in the ... More
Presented by Nobuchika OKADA on 10 Mar 2006 at 11:20
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Andrei SERYI on 10 Mar 2006 at 11:00
Type: Oral Session: Plenary
Track: Plenary
Presented by T. OMORI on 13 Mar 2006 at 17:00
Type: Oral Session: Plenary
Track: Plenary
An over view of MDI issues will be presented. Forward detectors was covered by Klauss Moenig, and machine-specific issues will be covered by Andei Seryi in the GDE plenary session. This talkwill focus on detector-related issues such as the DID (detector-integrated solenoid) and detector IR design.
Presented by Hitoshi Yamamoto on 9 Mar 2006 at 16:30
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Idea for 100 MHz DC-DC Converter in 4 Tesla Field
Presented by Satish DHAWAN on 11 Mar 2006 at 10:25
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
DCS for ALICE TPC
Presented by Dr. Sorina POPESCU on 11 Mar 2006 at 10:10
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
Marlin is a Modular Analysis and Reconstruction framework for detector simulation studies at the ILC. It is based on C++ and consists of software modules, called processors, which can be accessed and parametrised easily via a simple XML-based steering file. The native transient data format used for Marlin is LCIO. Marlin itself provides the framework only. All more specialised modules, for ... More
Presented by Dr. Oliver WENDT on 11 Mar 2006 at 10:00
Type: Oral Session: Gamma-gamma, e-gamma and e-e- Physics and Technology
Track: Top and QCD
We study effects of heavy Higgs bosons on the top-pair production process at a photon linear collider. The interference patterns between the resonant Higgs-production amplitudes and the continuum QED amplitudes are examined. The patterns tell us the CP nature of the Higgs bosons. We show that the above interference patterns of the production amplitudes can be studied by observing top decay ang ... More
Presented by Dr. Eri ASAKAWA on 12 Mar 2006 at 11:20
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The MPGD readout TPC for the ILC will have to measure ~200 track points with a resolution close to 100 microns for all drift distances. It may be difficult to meet the resolution target with conventional MPGD readout techniques if ~2 mm wide pads were used as is presently envisioned. Reducing the pad width to improve resolution could add significantly to the detector cost and complexity. The n ... More
Presented by Madhu DIXIT on 12 Mar 2006 at 15:35
Type: Oral Session: SUSY Particles/Cosmological Connections
Track: Cosmological Connections
We have studied the phenomenology of a dark matter in ILC and cosmic positron experiments based on a model independent approach. We have found that there is a strong correlation between a dark matter signatures in ILC and a indirect detection experiment of a dark matter using positrons. Once the dark matter is discovered in a cosmic positron measurement such as PAMELA, its nature will be inv ... More
Presented by Dr. Shigeki MATSUMOTO on 10 Mar 2006 at 09:00
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The Yale/Oregon effort to develop a CMOS vertex detector sensor with single bunch crossing time stamping will be reviewed. The R&D program is first developing a large pixel (50 um x 50 um) sensor, with a four deep memory for each pixel, and eventually will move to fine pixels (10 um x 10um) by changing to a smaller feature size semiconductor process.
Presented by Prof. James BRAU on 10 Mar 2006 at 09:45
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
We report the findings of a study on the efficiency and purity of muon identification for the proposed SiD detector geometry. The study is based on simulated b-pair events that include a muon in the decay chain. The aim of the study was to assess the use of the highly segmented proposed hadron calorimeter in the b identification process. The study shows that the efficiency and purity of the ... More
Presented by Dr. Eugene FISK on 12 Mar 2006 at 11:54
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
We describe a completely new way to reconstruct and identify muons with high efficiency and very high pion rejection in the 4th Concept detector. The air-volume dual-solenoid magnetic field allows the reconstruction and precision momentum measurement down to a few GeV (just the energy loss in the 10-interaction-length calorimeter and the coil) and the dual-readout calorimeter provides a new, ... More
Presented by Prof. John HAUPTMAN on 12 Mar 2006 at 11:18
Type: Oral Track: Calorimetry and Muons
We describe the design of the co-axial dual-solenoids of the 4th concept and the rationale for a superior (better than LEP) muon system. We show the ANSYS analysis, muon resolutions, and expected physics performance. The dual-solenoids do not cover the forward angular regions, so we explore the possibility of a wall of coils to contain the magnetic field to a compact cylindrical volume and a ... More
Presented by Prof. John HAUPTMAN
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
We investigate the sources of neutrino mass generation in Little Higgs theories, by confining ourselves to the Littlest Higgs scenario. Our conclusion is that the most satisfactory way of incorporating neutrino masses is to include a lepton-number violating interaction between the scalar triplet and lepton doublets. The tree-level neutrino masses are generated by the vacuum expectation value ... More
Presented by Raghavendra SRIKANTH on 13 Mar 2006 at 11:50
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
We present new correctins to Higgs boson masses and mixing angles in the MSSM with real and complex parameters. A numerical analysis of the impact of these new corrections is presented.
Presented by Dr. Sven HEINEMEYER on 13 Mar 2006 at 09:40
Type: Oral Session: Loop Calculations/SUSY Particles
Track: SUSY Particles
We report the resent development on the GRACE/SUSY system. GRACE/SUSY is the computer code which can generate Feynman diagrams in the MSSM automatically and compute 1-loop Feynman amplitudes in the numerical way. We present a short review of the GRACE/SUSY system. We also show new results of various 2-body decay widths and Chargino pair production at ILC in the 1-loop level.
Presented by Yoshiaki YASUI on 11 Mar 2006 at 09:00
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
I will describe a new particle flow algorithm running in the Marlin framework. The algorithm is designed with the goal of comparing the perfomance of different detector parameters. First results using the Mokka simulation of variants of the LDC detector will be presented.
Presented by Dr. Mark THOMSON on 13 Mar 2006 at 10:00
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
We consider a possibility that electroweak symmetry breaking (EWSB) is triggered by both a fundamental Higgs and a composite Higgs arising in a dynamical symmetry breaking mechanism induced by a new strong dynamics. The resulting Higgs sector is a partially composite two-Higgs doublet model with specific boundary conditions on the coupling and mass parameters originating at a compositeness ... More
Presented by Dr. Dong-Won JUNG on 13 Mar 2006 at 11:40
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
After the Large Hadron Collider (LHC), the next step for making progress in Particle Physics is the International Linear Collider project which will make precision measurements, often complimentary to those from the LHC, and provide detailed insight into the anticipated discoveries. In order to achieve the physics goals, the detectors at the Intenational Linear Collider must have fine precisio ... More
Presented by Usha MALLIK on 13 Mar 2006 at 11:20
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
The study uses a quick simulation of the GLD named QuickSim. For a better performance of physics event study, we have checked several parameters for that purpose. The physics event, say, e+ e- -> Z h, has been studied.
Presented by Dr. Tamaki YOSHIOKA on 13 Mar 2006 at 09:20
Type: Oral Session: Loop Calculations/SUSY Particles
Track: SUSY Particles
Electroweak precision measurements can provide indirect information about the possible scale of supersymmetry already at the present level of accuracy. We perform a chi^2 fit in various SUSY scenarios including the W boson mass, the effective leptonic weak mixing angle, the anomalous magnetic moment of the muon, the decay b -> s gamma and the lightes MSSM Higgs boson mass, taking also into acc ... More
Presented by Dr. Sven HEINEMEYER on 11 Mar 2006 at 09:20
Type: Oral Session: SUSY Particles
Track: SUSY Particles
We study the implications of non-universal boundary conditions for the composition of the lightest neutralino as well as for the upper bound on its mass in supersymmetric grand unified theories. We derive sum rules for neutralino and chargino masses in different representations of the simplest grand unified theory based on SU(5) which lead to different non-universal boundary conditions for t ... More
Presented by Prof. Pran Nath PANDITA on 10 Mar 2006 at 11:00
Type: Oral Session: Gamma-gamma, e-gamma and e-e- Physics and Technology
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
CAIN simulation program was used to study the outgoing beam profile for the Photon Collider at ILC. The main aim of the analysis was to verify the feasibility of Photon Collider running with 20 mrad electron beam crossing angle. The main problem is the distorted electron beam, which has to be removed from interaction region. It was shown that with new design of final dipol it should be possibl ... More
Presented by Prof. Maria KRAWCZYK on 12 Mar 2006 at 10:00
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
I present a QCD calculation of the transverse momentum distributions of Higgs bosons, and of photon pairs produced by 'background' QCD subprocesses, including all-orders soft-gluon resummation valid at next-to-next-to-leading logarithmic accuracy. Resummation is needed to obtain predictions valid in the ranges of transverse momentum where the cross sections are largest. I compare theresults w ... More
Presented by Prof. Edmond BERGER on 13 Mar 2006 at 10:00
Type: Oral Session: Higgs/Top and QCD/Gamma-Gamma
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
We investigate the QED Compton process (elastic and inelastic) in unpolarized and longitudinally polarized electron-proton scattering. The cross section can be expressed in terms of the equivalent photon distribution of the proton. We show that this process can be used to extract the photon content of both polarized and unpolarized proton at future colliders over a broad kinematical range.
Presented by Asmita MUKHERJEE on 11 Mar 2006 at 11:00
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Tim BARKLOW on 12 Mar 2006 at 10:15
Type: Oral Session: Plenary
Track: Plenary
Physics motivations to construct ILC have been strengthened by recent world-wide efforts. I will overview physics goals of ILC and its roles in our understanding of particle physics and cosmology in the new era of high energy physics starting with LHC operation.
Presented by Yasuhiro OKADA on 9 Mar 2006 at 09:55
Type: Oral Session: Plenary
Track: Plenary
Presented by Krishnamurthy SRIDHAR on 13 Mar 2006 at 14:20
Type: Oral Session: Plenary
Track: Plenary
Presented by Sven HEINEMEYER on 13 Mar 2006 at 14:00
Type: Oral Session: Gamma-gamma, e-gamma and e-e- Physics and Technology
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
We propose the scheme of a polarized positron source for the International Linear Collider (ILC). The process is based on a well-known principle of electron-positron pair creation from polarized gamma rays produced by Compton scattering of the circularly polarized laser light off a high-energy electron beam (e-beam). Our system employs multiple interactions of a 6GeV e-beam produced by a l ... More
Presented by Ms. Samadrita ROYCHOWDHURY on 12 Mar 2006 at 09:00
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
We have performed a detailed study of the power losses along the post-collision extraction line of a TeV e+e- collider with a crossing angle of 20~mrad at the interaction point. Five cases were considered: four luminosity configurations for ILC and one for CLIC. For all of them, the strong beam-beam effects at the interaction point lead to an emittance growth for the outgoing beams, as well as ... More
Presented by Dr. Arnaud FERRARI on 12 Mar 2006 at 14:25
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
We present the currently most complete calculation of the W boson mass in the MSSM. We include a full one-loop calculation, for the time also for complex parameters, the full available SM result as well as all available MSSM two-loop corrections. In a numerical analysis we show the effect of the complex phases and the results for M_W in various MSSM scenarios.
Presented by Dr. Sven HEINEMEYER on 13 Mar 2006 at 11:00
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
India-based Neutrino Observatory (INO) collaboration is proposing a large magnetized iron tracking calorimeter of total weight 50 kton, using atmospheric neutrinos as source. The proposed detector will have a modular structure of lateral size 48 m16 m and will consist of a stack of 140 layers of 6cm thick iron plates interleaved with Resistive Plate Chamber (RPC) detector layers. A total of ab ... More
Presented by Mr. Satyanarayana BHEESETTE on 11 Mar 2006 at 11:24
Type: Oral Session: New Physics/Top and QCD
Track: New Physics at TeV Scale & Electroweak Precision Test
No abstract available
Presented by JoAnne HEWETT on 12 Mar 2006 at 09:50
Type: Oral Session: New Physics/Top and QCD
Track: New Physics at TeV Scale & Electroweak Precision Test
In the context of an universal extra-dimensional scenario, we consider production of the first Kaluza-Klein electron positron pair in an $e^+e^-$ collider as a case-study for the future International Linear Collider. The Kaluza-Klein electron decays into a nearly degenerate Kaluza-Klein photon and a standard electron, the former carrying away missing energy. The Kaluza-Klein electron and phot ... More
Presented by Dr. Gautam BHATTACHARYYA on 12 Mar 2006 at 09:25
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
We approach the issue of the discovery of new physics at high energies associated with the proposed International Linear Collider in the presence of longitudinal as well as transverse electron and positron beam polarization. We determine the beam polarization dependence and the angular distribution of a particle of arbitrary spin in a one-particle inclusive final state produced in e+e- collis ... More
Presented by Balasubramanian ANANTHANARAYAN on 12 Mar 2006 at 14:20
Type: Oral Session: Plenary
Track: Plenary
Presented by Y K KIM on 10 Mar 2006 at 17:15
Type: Oral Session: Gamma-gamma, e-gamma and e-e- Physics and Technology
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
On 10th Jan 2006 a meeting took place at the Daresbury Lab, UK to discuss the laser cavity design proposed by Klemz et. al. I will report on this meeting.
Presented by Dr. Alex FINCH on 12 Mar 2006 at 09:20
Type: Oral Session: Plenary
Track: Plenary
Presented by Barry BARISH, Francois RICHARD, Roberto PETRONZIO, Shin-Ichi KUROKAWA, Albrecht WAGNER on 9 Mar 2006 at 17:15
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Presented by Dr. Aurore SAVOY-NAVARRO on 13 Mar 2006 at 09:45
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The present mechanical design of the vertex detector for SiD will be described. The design includes a 12.5 cm long central barrel with silicon pixels. Four disks with silicon pixels and three additional disks, which could be based upon silicon pixels or micro-strips, are located beyond each barrel end. Since sensor technologies are rapidly evolving and final operating requirements are unce ... More
Presented by Dr. William COOPER on 12 Mar 2006 at 11:00
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The present status in terms of sensors R&D and on mechanical developments on ladder prototypes, large support structures, cooling alignement and integration are described. The detailed test beam schedule and roadmap including prototypes and combined tests with other sub-detectors is presented.
Presented by Dr. Aurore SAVOY-NAVARRO on 12 Mar 2006 at 12:00
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
The Universal Extra Dimension models are supposed to mimic SUSY at colliders. They are also of interest as a source of cold dark matter. I discuss how ILC can discriminate between UED and SUSY from lepton pair production. I will also discuss how, in UED, single production of n=2 electroweak gauge bosons as s-channel resonances (much in the same vein as LEP) may lead to a precision study of th ... More
Presented by Mr. Biplob BHATTACHERJEE on 10 Mar 2006 at 09:25
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
We examine, in a model independent way, the sensitivity of a Linear Collider to the couplings of a light Higgs boson to gauge bosons. Including the possibility of CP violation, we construct several observables that probe the different anomalous couplings possible. For an intermediate mass Higgs, a collider operating at a center of mass energy of 500 GeV and with an integrated luminosity of 50 ... More
Presented by Sudhansu BISWAL on 13 Mar 2006 at 11:20
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Abstract A specific research and development program has been carried out in India to develop the technology for 32-strip silicon detectors for application as a preshower detector for CMS experiment at LHC, CERN. The detectors have a geometry of 63mm x 63mm and these detectors incorporate 32 P+strips with width of 1.78 mm with a pitch of 1.9 mm. The fabrication technology to produce si ... More
Presented by Dr. Anita TOPKAR on 10 Mar 2006 at 12:12
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The current status of the silicon strip sensor R&D activities in Korea will be presented.
Presented by Prof. Hwanbae PARK on 12 Mar 2006 at 12:25
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
A procedure of digitization of hits produced in the silicon tracking subdetectors of the LC detector has been developed. The procedure has been employed to evaluate point resolution of the vertex detector. In addition stand-alone pattern recognition algorithm has been developed to search for tracks in the vertex detector. Performance of the algorithm has been evaluated in the presence of b ... More
Presented by Alexei Raspereza, Alexei Raspereza on 11 Mar 2006 at 11:45
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
Software plays an important role in the optimisation and design of detectors for the ILC. Over the past years, a first version of a coherent software system has been developed within the ILC community. It is based on a common data format, LCIO, and on the definition of interfaces between different parts of the simulation and reconstruction chain. Particular emphasis is put on a highly modular ... More
Presented by Dr. Ties BEHNKE on 11 Mar 2006 at 09:00
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
"We present the software package for the simulation and reconstruction of the IV Concept detector: IVCroot. It is based on the architecture of Aliroot, the Offline system of Alice experiment. The architecture is discussed along with some preliminary results"
Presented by Dr. Corrado GATTO on 13 Mar 2006 at 09:00
Type: Oral Session: Plenary
Track: Plenary
Presented by Dr. Mark THOMSON on 13 Mar 2006 at 15:50
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
The DCR people (Klaus Moenig, Abdel Djouadi, Jo Lykken, ...)
on 10 Mar 2006 at 12:00
Type: Oral Session: SUSY Particles
Track: SUSY Particles
The precision determination of scalar top quark properties will play an important role at a future International Linear Collider (ILC). The scenario with small expected visible energies, from almost mass degenerate stops and neutralinos, is cosmologically motivated and experimentally particularly challenging. This scenario has been investigated with an Iterative Discriminant Analysis (IDA) ... More
Presented by Dr. Andre SOPCZAK on 11 Mar 2006 at 11:00
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
I will describe simulation studies of GLD scintillator-based calorimeter. This talk contains two parts: the first is pi0 reconstruction with scintillator-strip ECAL, and the second is a study of digital HCAL performance. Preliminary results of these studies will be presented in my talk.
Presented by Hiroyuki MATSUNAGA on 11 Mar 2006 at 12:08
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
Final results on the 0.18 micron UMC FE chip are summarized and preliminary results on time measurement are discussed. The status of the next version in 0.13 micron is briefly presented.
Presented by Mr. Jean-Francois GENAT on 12 Mar 2006 at 11:45
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
R&D studies on the performance as well as on the gas properties of the Micromegas based time projection chamber with standard readout were carried out in June 2005 using 4 GeV/c pion beam in a magnetic field from 0 to 1 Tesla at the Proton Synchrotron beam line at KEK, Japan. Analysis on the electron drift velocity, diffusion constant and point resolution of padrow measurement for Microm ... More
Presented by Ms. Rosario L. Reserva RESERVA on 12 Mar 2006 at 14:45
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
For the design of the ILC a polarised positron source based on a helical undulator system has been proposed. In order to optimise the positron beam, i.e. to ensure high intensity as well as high degree of polarisation, a measurement of the polarisation close to the positron creation point is envisaged. In this contribution methods to determine the positron polarisation at low energies ... More
Presented by Andreas SCHAELICKE on 12 Mar 2006 at 15:30
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Presented by Joachim MNICH on 13 Mar 2006 at 10:15
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
A way to determine luminosity at ILC is to measure Bhabha scattering in the LumiCal. For physics requirements, one needs to reach a precision of 10^-4 for the luminosity determination and thus the Bhabha cross section. Whereas studies on theoretical uncertainties on the cross section and on mis-identified Bhabhas in the LumiCal are fully performed, bias on Bhabha measurement due to beam-be ... More
Presented by Dr. Cecile RIMBAULT on 12 Mar 2006 at 09:50
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by Ms. Editha JACOSALEM on 10 Mar 2006 at 11:36
Type: Oral Session: Higgs and EWSB
Track: Higgs and EWSB
The T parity conserving Little Higgs Model predicts the existence of heavy gauge bosons. We probe the production of heavy charged gauge bosons in the upcoming gamma-gamma collider. We further study its decay to heavy neutral gauge bosons (a promising dark matter candidate) and W bosons.
Presented by Dr. Sukanta DUTTA on 11 Mar 2006 at 09:20
Type: Oral Session: Tracking and Vertexing
Track: Tracking and Vertexing
The LC TPC R&D work has been underway for four years, whereby the various TPC groups have been learning to use the MPGD techniques by building and measuring with an impressive number of small TPC prototypes (around 30cm diameter) using cosmics and test beams, and using a variety of different gas mixtures. The next stage of this work will focus the groups and work on building a Large Prototype ... More
Presented by Ron SETTLES on 13 Mar 2006 at 11:50
Type: Oral Session: Plenary
Track: Plenary
Presented by Vishnu ZUTSHI on 13 Mar 2006 at 16:30
Type: Oral Session: Test Beams
Track: Test Beams
Presented by Wolfgang LOHMANN on 12 Mar 2006 at 10:00
Type: Oral Session: Test Beams
Track: Test Beams
Presented by Vishnu ZUTSHI on 12 Mar 2006 at 09:20
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
Particle Flow Calorimetry promises an excellent jet energy resolution by combining the momentum measurement, electromagnetic calorimeter and using the hadron calorimeter for neutral hadron only. This technique depends on the ability of separation of energy deposits of separate particles and thus on the spatial density of particles in the calorimeter. We investigate the variation of the parti ... More
Presented by Dr. Adam PARA on 13 Mar 2006 at 11:45
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
A set of 4 ILC Muon prototype modules, each 1.25m x 2.5m with 64 diagonal scintillator strips has been assembled and set up in the Fermilab test beam. Two of the modules have readouts and one end of the scintillators and two of the modules have readouts at both ends of the strips. Studies of the pulse shapes and preliminary results of the beam tests will be presented.
Presented by Dr. Bib ABRAMS on 12 Mar 2006 at 11:00
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
The complete optics design for the 2mrad crossing angle interaction region and extraction line was presented at Snowmass 2005. Since this time, the design task force has been working on developing and improving the layout. The work has focused on optimising the final doublet (including by using higher gradient magnet materials), on reducing the power losses resulting from the disrupted beam tr ... More
Presented by Dr. Rob APPLEBY on 12 Mar 2006 at 15:00
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
Presented by Delerue, N. on 12 Mar 2006 at 14:00
Type: Oral Session: Simulation and Reconstruction
Track: Simulation and Reconstruction
We present the status of particle-flow algorithm development at Northern Illinois University. A key element in our approach is the calorimeter-based "Directed Tree" clustering algorithm. We have attempted to identify and tackle the essential challenges and analyze the effect of several different approaches to the reconstruction of jet energies and the Z-boson mass. A number of possibilities ... More
Presented by Vishnu ZUTSHI on 13 Mar 2006 at 11:00
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
The full exploitation of the physics potential of an International Linear Collider (ILC), will require the development of polarized positron beams. Having both positron and electron beams polarized will be a decisive improvement for many physics studies in the linear collider, providing new insight into structures of couplings and thus access to the physics beyond the standard model. The conc ... More
Presented by Karim LAIHEM on 12 Mar 2006 at 15:45
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
Presented by DongHee KIM
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
The bunch fields at the interaction point of the ILC have a dominant effect on background pair production. The Breit-Wheeler, Bethe-Heitler and Landau-Lifshitz processes have all been studied in detail. The number of background pairs per bunch crossing due to these processes is well known. However the effect of the bunch fields on the Breit-Wheeler process has not been calculated. This Stimula ... More
Presented by Anthony HARTIN on 12 Mar 2006 at 14:15
Type: Oral Session: Machine Detector Interface
Track: Machine Detector Interface
The StaFF (Stabilisation of Final Focus) system will use interferometers to monitor the relative positions of several key components in the beam-delivery and interaction region. The most demanding application will be the relative position monitoring of the ILCs final focus quadrupole magnets; whose mutual and beam-relative stability, will have a direct impact on detector luminosity. Establi ... More
Presented by Dr. Paul COE on 12 Mar 2006 at 15:15
Type: Oral Session: SUSY Particles
Track: SUSY Particles
In a R-parity violating (RPV) model of neutrino mass with three bilinear couplings mu_i and three trilinear couplings lambda'_{i33}, where i is the lepton index, we find six generic scenarios each with a distinctive pattern of the trilinear couplings consistent with the oscillation data. These patterns may be reflected in direct RPV decays of the lighter top squark or in the RPV decays of the ... More
Presented by Mr. Sujoy PODDAR on 10 Mar 2006 at 11:40
Type: Oral Session: Plenary
Track: Plenary
Presented by Akira SUGIYAMA on 13 Mar 2006 at 14:55
Type: Oral Session: New Physics at TeV Scale and Precision Electroweak
Track: New Physics at TeV Scale & Electroweak Precision Test
Transverse polarization of electron and positron beams can be useful because it permits the use of azimuthal asymmetries even when the final state consists of two particles. It is found that with the use of transverse polarization, a CP-odd and T-odd observable can be constructed when the final-state particles are self-conjugate. In the case of HZ production, this observable can be used to pro ... More
Presented by Prof. Saurabh RINDANI on 12 Mar 2006 at 14:00
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
Presented by Satish DHAWAN on 13 Mar 2006 at 10:00
Type: Oral Session: Gamma-gamma, e-gamma and e-e- Physics and Technology
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
It is very likely that due to the cost “optimization” the ILC will have only one detector and no further energy upgrade. This scenario with a long run time at the energy 2E<=500 GeV only strengthens the case of the photon collider. In any case, it is very important to develop a design which allows the best possible parameters of the photon collider. The gamma-gamma luminosity is determined ... More
Presented by Prof. Valery TELNOV on 12 Mar 2006 at 09:40
Type: Oral Session: Calorimetry and Muons
Track: Calorimetry and Muons
We have studied the performance of the CMS hadron calorimeter using the testbeam facilities at CERN. Two wedges of brass-scintillator calorimeter are exposed to negative and positive beams with momenta between 3 and 300 GeV/c. Light produced in the scintillators were collected using wavelength shifting fibres and read out using Hybrid photodiodes. Each of the wedges had 17 layers of scintilla ... More
Presented by Seema SHARMA on 10 Mar 2006 at 11:54
Type: Oral Session: Higgs/Top and QCD/Gamma-Gamma
Track: Gamma-Gamma e-Gamma e-e- Physics and Technology
The access to the purest initial state is possible by use of two highly polarized electrons. We give an up-to-date review of where we stand in this effort - including its accessibility in the context of its basic compatibility with the beamline and detector used for e+e- - initiated interactions.
Presented by Clemens HEUSCH on 11 Mar 2006 at 12:00
Type: Oral Session: Loop Calculations/SUSY Particles
Track: SUSY Particles
In many SUSY models the first SUSY signal in the proposed International Linear Collider is expected to come from the pair production of stau particles, followed by its decay into tau lepton plus lightest neutralino assumed to be the lightest supersymmetric particle. In our study a simple and robust method of measuring the polarization of this tau in its 1-prong hadronic decay channel,has been ... More
Presented by Monoranjan GUCHAIT on 11 Mar 2006 at 09:40
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
VERY Forward Calor and machine feedback
Presented by Wojciech WIERBA on 11 Mar 2006 at 09:55
Type: Oral Session: Data Acquisition and Global Detector Network
Track: Data Acquistion and Global Detector Network
The concept of virtual observatories has recently emerged to enable astronomers to deal with the management, analysis, visualization and mining of vast quantities of astronomical data. The task is difficult because of the diversity of data obtained at different wavelengths and the very different techniques used in the analysis. There is the need to develop data formats, interoperabilit ... More
Presented by Ajit KEMBHAVI on 11 Mar 2006 at 09:05
Type: Oral Session: Plenary
Track: Plenary
Presented by Hendrik WEERTS on 10 Mar 2006 at 16:30
Type: Oral Session: Plenary
Track: Plenary
Presented by Rohini GODBOLE on 9 Mar 2006 at 09:00
Type: Oral Session: Plenary
Track: Plenary
Presented by Rohini GODBOLE on 13 Mar 2006 at 17:15
Type: Oral Track: Data Acquistion and Global Detector Network
A new scheme of read out electronics which will be used for MPPC new type of photon sensor is under development in KEK. The aim and situation is reported. Both analog to digital conversion data and timing information are relevant for this detector, thus specail care are taken for them.
Presented by Prof. Tohru TAKESHITA