Rohini Godbole
(Centre for Theoretical Studies (CTS))
3/9/06, 9:00 AM
Barry Barish
(CalTech)
3/9/06, 9:15 AM
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.
Yasuhiro Okada
(KEK)
3/9/06, 9:55 AM
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.
Klaus Desch
(Physikalisches Institut)
3/9/06, 10:25 AM
Amit Roy
(IUAC, Delhi),
Barry Barish
(CalTech),
Vinod Sahni
(RRCAT, Indore)
3/9/06, 11:30 AM
KEN PEACH
(CCLRC RAL)
3/9/06, 12:15 PM
Andrew White
(University of Texas at Arlington)
3/9/06, 2:45 PM
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.
Klaus Monig
(Institut fuer Hochenergiephysik Zeuthen)
3/9/06, 3:05 PM
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.
Hitoshi Yamamoto
(Tohoku Univ.)
3/9/06, 4:30 PM
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.
Satoru Yamashita
(University of Tokyo)
3/9/06, 4:50 PM
Albrecht Wagner
(DESY),
Barry Barish
(CalTech),
Francois Richard
(LAL),
Roberto Petronzio
(Unknown),
Shin-Ichi Kurokawa
(KEK)
3/9/06, 5:15 PM
Laci Andricek
(Werner-Heisenberg-Institut)
3/10/06, 9:00 AM
Prof.
Tohru Takeshita
(Shinshu Univ.)
3/10/06, 9:00 AM
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.
Tom Rizzo
(SLAC)
3/10/06, 9:00 AM
New Physics at TeV Scale & Electroweak Precision Test
Oral
Abstract not available
Dr
Shigeki Matsumoto
(KEK)
3/10/06, 9:00 AM
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...
Goetz Gaycken
(Universitaet Hamburg)
3/10/06, 9:18 AM
Mr
Biplob Bhattacherjee
(University of Calcutta, Department of Physics)
3/10/06, 9:25 AM
New Physics at TeV Scale & Electroweak Precision Test
Oral
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...
George Mavromanolakis
(Nuclear and Particle Physics Section)
3/10/06, 9:36 AM
Prof.
James Brau
(Oregon)
3/10/06, 9:45 AM
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.
3/10/06, 9:50 AM
New Physics at TeV Scale & Electroweak Precision Test
Oral
Julien Fleury
(LAL - Orsay)
3/10/06, 9:54 AM
Marc Winter
(IPHC-Strasbourg)
3/10/06, 10:05 AM
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.
3/10/06, 10:10 AM
Prof.
James Brau
(Oregon)
3/10/06, 10:12 AM
Felix Sefkow
(DESY)
3/10/06, 11:00 AM
Prof.
Kajari Mazumdar
(Tata Inst., Mumbai, India)
3/10/06, 11:00 AM
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.
Andrei Seryi
(SLAC)
3/10/06, 11:00 AM
Prof.
Pran Nath Pandita
(Department of Physics, North Eastern Hill University, Shillong 793 022, India)
3/10/06, 11:00 AM
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...
Jaroslav Cvach
(Institute of Physics AS CR)
3/10/06, 11:18 AM
Dr
Sven Heinemeyer
(University of Zaragoza)
3/10/06, 11:20 AM
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,...
Toshiaki Tauchi
(KEK)
3/10/06, 11:20 AM
Karsten Buesser
(DESY)
3/10/06, 11:35 AM
Ms
Editha Jacosalem
(MSU-Iligan Institute of Technology, Philippines)
3/10/06, 11:36 AM
Dr
Pascal Gay
(LPC UBP IN2P3)
3/10/06, 11:40 AM
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.
Mr
Sujoy Poddar
(Jadavpur University)
3/10/06, 11:40 AM
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...
Burrows, P.
(Queen Mary, Univ of London)
3/10/06, 11:50 AM
Seema Sharma
(Tata Institute of Fundamental Research (TIFR))
3/10/06, 11:54 AM
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...
3/10/06, 12:00 PM
The DCR people (Klaus Moenig, Abdel Djouadi, Jo Lykken, ...)
3/10/06, 12:05 PM
Dr
Anita Topkar
(Bhabha Atomic Research Centre (BARC))
3/10/06, 12:12 PM
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...
Hwanbae Park
(Kyungpook National University)
3/10/06, 2:00 PM
John Hauptman
(Iowa State University)
3/10/06, 3:30 PM
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...
Hendrik Weerts
(Argonne National Lab)
3/10/06, 4:30 PM
Y K Kim
(Argonne National Laboratory)
3/10/06, 5:15 PM
Dr
SANTOSH RAI
(Harish-Chandra Research Institute)
3/11/06, 9:00 AM
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 ->...
Usha Mallik
(Iowa)
3/11/06, 9:00 AM
Yoshiaki Yasui
(Tokyo Management College)
3/11/06, 9:00 AM
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.
Vishnu Zutshi
(Northern Illinios University)
3/11/06, 9:20 AM
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,...
Dr
Sven Heinemeyer
(University of Zaragoza)
3/11/06, 9:20 AM
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...
Dr
Sukanta Dutta
(SGTB Khalsa College, University of Delhi.)
3/11/06, 9:20 AM
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.
Gunter Eckerlin
(Deutsches Elektronen Synchrotron (DESY)),
Hiroyuki Matsunaga
(Tsukuba), Mr
Patrick LE DU
(DAPNIA CEA), Dr
Sorina Popescu
(IFIN-HH/CERN),
Usha Mallik
(Iowa)
3/11/06, 9:35 AM
Reports for all 4 concepts: GLD, SiD, LDC, 4th
Dr
Nikolai Sinev
(University of Oregon)
3/11/06, 9:40 AM
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.
Dr
Aura Rosca
(West University of Timisoara)
3/11/06, 9:40 AM
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.
87.
Use of tau polarization to discriminate between SUSY models and Determine SUSY parametere at ILC
Monoranjan Guchait
(Tata Institute of Fundamental Research (TIFR))
3/11/06, 9:40 AM
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...
Wojciech Wierba
(Institute of Nuclear Physics PAS, Cracow)
3/11/06, 9:55 AM
VERY Forward Calor and machine feedback
Tim Barklow
(Stanford University)
3/11/06, 10:00 AM
Dr
Ayres Freitas
(University of Zurich)
3/11/06, 10:00 AM
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...
Markiewicz, T.
(SLAC)
3/11/06, 10:00 AM
Karsten Buesser
(DESY)
3/11/06, 10:30 AM
Klaus Monig
(Institut fuer Hochenergiephysik Zeuthen)
3/11/06, 11:00 AM
Andrew White
(University of Texas at Arlington)
3/11/06, 11:00 AM
Dr
Konstantin Stefanov
(CCLRC Rutherford Appleton Laboratory)
3/11/06, 11:00 AM
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...
Asmita Mukherjee
(IIT Mumbai)
3/11/06, 11:00 AM
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.
Dr
Andre Sopczak
(Lancaster University)
3/11/06, 11:00 AM
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...
Mr
Ritesh Singh
(LPT Orsay, France)
3/11/06, 11:20 AM
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...
Mr
Satyanarayana Bheesette
(TIFR)
3/11/06, 11:24 AM
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...
Dr
Nikolai Sinev
(University of Oregon)
3/11/06, 11:25 AM
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...
Rohini Godbole
(Centre for Theoretical Studies (CTS))
3/11/06, 11:40 AM
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...
Alexei Raspereza
(DESY, Hamburg),
Alexei Raspereza
(DESY)
3/11/06, 11:45 AM
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...
Aldo Penzo
(Laboratory of Research Sezione di Trieste)
3/11/06, 11:46 AM
Clemens Heusch
(SLAC)
3/11/06, 12:00 PM
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.
Hiroyuki Matsunaga
(University of Tsukuba)
3/11/06, 12:08 PM
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.
Dr
Andre Sopczak
(Lancaster University)
3/11/06, 12:10 PM
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...
Prof.
Prakash Mathews
(Saha Inst. of Nuclear Physics)
3/12/06, 9:00 AM
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.
Mr
Marcel Demarteau
(Fermilab),
Marcel Demarteau
(Fermi National Accelerator Laboratory (FNAL))
3/12/06, 9:00 AM
Markiewicz, T.
(SLAC)
3/12/06, 9:00 AM
Ms
Samadrita Roychowdhury
(Duke University)
3/12/06, 9:00 AM
Gamma-Gamma e-Gamma e-e- Physics and Technology
Oral
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...
Prof.
Valery Telnov
(Budker INP, Novosibirsk, Russia)
3/12/06, 9:20 AM
Dr
Alex Finch
(Lancaster University)
3/12/06, 9:20 AM
Gamma-Gamma e-Gamma e-e- Physics and Technology
Oral
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.
Vishnu Zutshi
(Northern Illinios)
3/12/06, 9:20 AM
Dr
Gautam Bhattacharyya
(SINP, India)
3/12/06, 9:25 AM
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...
Katsumasa Ikematsu
(DESY)
3/12/06, 9:40 AM
Prof.
Valery Telnov
(Budker INP, Novosibirsk, Russia)
3/12/06, 9:40 AM
Gamma-Gamma e-Gamma e-e- Physics and Technology
Oral
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...
Dr
Cecile Rimbault
(LAL Orsay)
3/12/06, 9:50 AM
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...
Uladzimir Druhakou
(NC PHEP, Minsk / DESY)
3/12/06, 10:00 AM
Prof.
Maria Krawczyk
(Institute of Theoretical Physics, Warsaw University)
3/12/06, 10:00 AM
Gamma-Gamma e-Gamma e-e- Physics and Technology
Oral
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...
Wolfgang Lohmann
(Institut fuer Hochenergiephysik Zeuthen)
3/12/06, 10:00 AM
Tim Barklow
(Stanford University)
3/12/06, 10:15 AM
Mr
Ritesh Singh
(LPT Orsay, France)
3/12/06, 11:00 AM
Gamma-Gamma e-Gamma e-e- Physics and Technology
Oral
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...
Dr
William Cooper
(Fermilab)
3/12/06, 11:00 AM
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...
Dr
Bib Abrams
(Notre Dame University)
3/12/06, 11:00 AM
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.
Prof.
John Hauptman
(Iowa State University)
3/12/06, 11:18 AM
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...
Dr
Eri Asakawa
(Theory Group, KEK, Japan)
3/12/06, 11:20 AM
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...
Dr
Steve Worm
(CCLRC Rutherford Appleton Laboratory)
3/12/06, 11:25 AM
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...
Dr
Zhao Zhao
(University of Washington)
3/12/06, 11:36 AM
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...
Dr
Bin Zang
(Tsinghua University)
3/12/06, 11:40 AM
Gamma-Gamma e-Gamma e-e- Physics and Technology
Oral
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...
Mr
Jean-Francois Genat
(LPNHE UNiversite de Paris 6/IN2P3-CNRS)
3/12/06, 11:45 AM
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.
Klaus Monig
(Institut fuer Hochenergiephysik Zeuthen)
3/12/06, 11:50 AM
Discussion on the DCR Electroweak and BSM
Prof.
Maria Krawczyk
(Institute of Theoretical Physics, Warsaw University)
3/12/06, 12:00 PM
Gamma-Gamma e-Gamma e-e- Physics and Technology
Oral
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...
Dr
Aurore Savoy-Navarro
(LPNHE UNiversite de Paris 6/IN2P3-CNRS)
3/12/06, 12:00 PM
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.
Dr
William Cooper
(Fermilab)
3/12/06, 12:12 PM
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...
Prof.
Hwanbae Park
(Kyungpook National University)
3/12/06, 12:25 PM
The current status of the silicon strip sensor R&D activities in Korea will be presented.
Satyaki Bhattacharya
(University of Delhi)
3/12/06, 2:00 PM
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.
Delerue, N.
(KEK)
3/12/06, 2:00 PM
Prof.
Saurabh Rindani
(Physical Research Laboratory, Ahmedabad)
3/12/06, 2:00 PM
New Physics at TeV Scale & Electroweak Precision Test
Oral
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...
Sudhir Dixit
(University of Oxford - John Adams Institute)
3/12/06, 2:10 PM
Anthony Hartin
(John Adams Institute, Oxford University)
3/12/06, 2:15 PM
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...
Dr
Naveen Gaur
(University of Delhi)
3/12/06, 2:20 PM
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...
B. Ananthanarayan
(IISc, Bangalore)
3/12/06, 2:20 PM
New Physics at TeV Scale & Electroweak Precision Test
Oral
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-...
Akira Sugiyama
(University of Saga)
3/12/06, 2:25 PM
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.
Dr
Arnaud Ferrari
(University of Uppsala)
3/12/06, 2:25 PM
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...
Dr
SANTOSH RAI
(Harish-Chandra Research Institute)
3/12/06, 2:40 PM
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...
Grahame Blair
(Royal Holloway, Univ. of London)
3/12/06, 2:40 PM
Alexander Pankov
(Techn. Univ. of Gomel)
3/12/06, 2:45 PM
New Physics at TeV Scale & Electroweak Precision Test
Oral
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...
Ms
Rosario L. Reserva Reserva
(MSU-Iligan Institute of Technology)
3/12/06, 2:45 PM
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...
Grahame Blair
(Royal Holloway, Univ. of London)
3/12/06, 2:55 PM
Mamta Dahiya
(S.G.T.B. Khalsa College, Delhi)
3/12/06, 3:00 PM
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.
Dr
Rob Appleby
(The Cockcroft Institute)
3/12/06, 3:00 PM
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...
Prof.
Probir Roy
(tata Institute of Fundamental Research)
3/12/06, 3:10 PM
New Physics at TeV Scale & Electroweak Precision Test
Oral
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,...
Dr
Paul Coe
(University of Oxford)
3/12/06, 3:15 PM
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...
Andreas Schaelicke
(DESY, Zeuthen)
3/12/06, 3:30 PM
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...
Madhu Dixit
(Carleton University and TRIUMF)
3/12/06, 3:35 PM
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....
Karim Laihem
(Institut fuer Hochenergiephysik Zeuthen)
3/12/06, 3:45 PM
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...
Abdel-hak Djouadi
(Orsay),
Akiya Miyamoto,
Chris Damerell,
Joe Lykken,
John Jaros,
Klaus Moenig
(DESY Zeuthen),
M. Yamaguchi,
Mark Oreglia
(Chicago univ.),
Ties Behnke
3/12/06, 4:30 PM
Sunanda Banerjee
(Tata Institute of Fundamental Research (TIFR))
3/12/06, 5:20 PM
Klaus Monig
(Institut fuer Hochenergiephysik Zeuthen),
Z. Zhang
(Orsay)
3/13/06, 9:00 AM
Event selection strategies. How to separate the difficult physics
channels from background.
Dr
Corrado Gatto
(INFN Lecce)
3/13/06, 9:00 AM
"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"
G. Fisk
(FNAL), Mr
Patrick LE DU
(DAPNIA CEA)
3/13/06, 9:15 AM
Do we need it? What are the implications? How to implement it?
Dr
Arnaud Ferrari
(University of Uppsala)
3/13/06, 9:20 AM
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...
Ray Larsen
(SLAC),
Satish Dhawan
(Yale)
3/13/06, 9:20 AM
Dr
Tamaki Yoshioka
(ICEPP, Univ. of Tokyo)
3/13/06, 9:20 AM
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.
Dr
Vasiliy Morgunov
(DESY and ITEP)
3/13/06, 9:40 AM
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...
Dr
Sven Heinemeyer
(University of Zaragoza)
3/13/06, 9:40 AM
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.
Dr
Aurore Savoy-Navarro
(LPNHE UNiversite de Paris 6/IN2P3-CNRS)
3/13/06, 9:45 AM
Dr
Mark Thomson
(University of Cambridge)
3/13/06, 10:00 AM
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.
Prof.
Edmond Berger
(High Energy Physics Division, Argonne National Laboratory, USA)
3/13/06, 10:00 AM
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...
Satish Dhawan
(Yale)
3/13/06, 10:00 AM
Joachim Mnich
(Deutsches Elektronen Synchrotron (DESY))
3/13/06, 10:15 AM
Mr
Marcel Demarteau
(Fermilab)
3/13/06, 11:00 AM
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.
Katsumasa Ikematsu
(DESY)
3/13/06, 11:00 AM
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.
Dr
Sven Heinemeyer
(University of Zaragoza)
3/13/06, 11:00 AM
New Physics at TeV Scale & Electroweak Precision Test
Oral
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.
Vishnu Zutshi
(Northern Illinios)
3/13/06, 11:00 AM
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...
Usha Mallik
(University of Iowa)
3/13/06, 11:20 AM
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...
Sudhansu Biswal
(CHEP, IISc. Bangalore)
3/13/06, 11:20 AM
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...
Dr
Poulose Poulose
(IIT Guwahati)
3/13/06, 11:25 AM
New Physics at TeV Scale & Electroweak Precision Test
Oral
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...
Dr
Dong-Won Jung
(Korea Institute of Advanced Study ( KIAS))
3/13/06, 11:40 AM
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...
Raghavendra Srikanth
(Harish-Chandra Research Institute)
3/13/06, 11:50 AM
New Physics at TeV Scale & Electroweak Precision Test
Oral
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...
Ron Settles
(Max-Planck-Gesellschaft)
3/13/06, 11:50 AM
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...
Mr
Sudhir Gupta
(Harish-Chandra Research Institute)
3/13/06, 12:00 PM
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...
3/13/06, 12:15 PM
Sven Heinemeyer
(CERN)
3/13/06, 2:00 PM
Krishnamurthy Sridhar
(TIFR)
3/13/06, 2:20 PM
Akira Sugiyama
(University of Saga)
3/13/06, 2:55 PM
Goetz Gaycken
(Universitaet Hamburg)
3/13/06, 3:15 PM
Mr
Patrick LE DU
(DAPNIA CEA),
Patrick Le Du
(DAPNIA)
3/13/06, 3:35 PM
Dr
Mark Thomson
(University of Cambridge)
3/13/06, 3:50 PM
Dr
Alex Finch
(Lancaster University)
3/13/06, 4:45 PM
Rohini Godbole
(Indian Institute of Science)
3/13/06, 5:15 PM
Prof.
Tohru Takeshita
(Shinshu Univ.)
Data Acquistion and Global Detector Network
Oral
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.
Valeri Saveliev
(Obninsk State University/DEAY)
Calorimetry and Muons
Oral
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...
Hiroyuki Matsunaga
(University of Tsukuba)
Data Acquistion and Global Detector Network
Oral
Prof.
Valery Telnov
(Budker INP, Novosibirsk, Russia)
Machine Detector Interface
Oral
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.
Prof.
John Hauptman
(Iowa State University)
Calorimetry and Muons
Oral
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...
DongHee Kim
(Kyungpook National University)
Calorimetry and Muons
Oral
