Frank-Dieter Gaede
(Deutsches Elektronen-Synchrotron (DE))
14/10/2013, 13:30
Event Processing, Simulation and Analysis
Oral presentation to parallel session
One of the key requirements for Higgs physics at the International Linear Collider ILC is excellent track reconstruction with very good momentum and impact parameter resolution. ILD is one of the two detector concepts at the ILC.
Its central tracking system comprises of a highly granular TPC, an intermediate silicon tracker and a pixel vertex detector, and it is complemented by silicon...
Leo Piilonen
(Virginia Tech)
14/10/2013, 13:55
Event Processing, Simulation and Analysis
Oral presentation to parallel session
I will describe the charged-track extrapolation and the muon identification modules in the Belle II data analysis code library. These modules use GEANT4E to extrapolate reconstructed charged tracks outward from the Belle II Central Drift Chamber into the outer particle-identification detectors, the electromagnetic calorimeter, and the K-long and muon (KLM) detector embedded in the iron yoke...
Slava Krutelyov
(Texas A & M University (US))
14/10/2013, 14:40
Event Processing, Simulation and Analysis
Oral presentation to parallel session
In 2012 the LHC increased both the beam energy and intensity. The former made obsolete all of the simulation data generated for 2011; the latter increased the rate of multiple proton-proton collisions (piluep) in a single event, significantly increasing the complexity of both the reconstructed and matching simulated events. Once the pileup surpassed 10, the resources needed for the software to...
Prof.
Ivan Kisel
(GSI, Gesellschaft fuer Schwerionenforschung mbH)
14/10/2013, 15:45
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The CBM (Compressed Baryonic Matter) experiment is an experiment being prepared to operate at the future Facility for Anti-Proton and Ion Research (FAIR, Darmstadt, Germany). Its main focus is the measurement of very rare probes, which requires interaction rates of up to 10 MHz. Together with the high multiplicity of charged tracks produced in heavy-ion collisions, this leads to huge data...
Dr
Mohammad Al-Turany
(GSI)
14/10/2013, 16:10
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The FairRoot framework is the standard framework for simulation, reconstruction and data analysis for the FAIR experiments. The framework, is designed to optimize the accessibility for beginners and developers, to be flexible and to cope with future developments. FairRoot enhances the synergy between the different physics experiments within the FAIR project. Moreover, the framework is...
Semen Lebedev
(Justus-Liebig-Universitaet Giessen (DE))
14/10/2013, 16:30
Event Processing, Simulation and Analysis
Oral presentation to parallel session
Development of fast and efficient event reconstruction algorithms is an important and challenging task in the Compressed Baryonic Matter (CBM) experiment at the future FAIR facility. The event reconstruction algorithms have to process terabytes of input data produced in particle collisions. In this contribution, several event reconstruction algorithms, which use available features of modern...
Stefanie Lewis
14/10/2013, 16:55
Event Processing, Simulation and Analysis
Oral presentation to parallel session
At the mass of a proton, the strong force is not well understood. Various quark models exist, but it is important to determine which quark model(s) are most accurate. Experimentally, finding resonances predicted by some models and not others would give valuable insight into this fundamental interaction. Several labs around the world use photoproduction experiments to find these missing...
Elizabeth Sexton-Kennedy
(Fermi National Accelerator Lab. (US))
14/10/2013, 17:25
Event Processing, Simulation and Analysis
Oral presentation to parallel session
Modern computing hardware is transitioning from using a single high frequency complicated computing core to many lower frequency simpler cores. As part of that transition, hardware manufacturers are urging developers to exploit concurrency in their programs via operating system threads. We will present CMS' effort to evolve our single threaded framework into a highly concurrent framework. We...
Benedikt Hegner
(CERN)
14/10/2013, 17:50
Event Processing, Simulation and Analysis
Oral presentation to parallel session
In the past, the increasing demands for HEP processing resources could be fulfilled by distributing the work to more and more physical machines. Limitations in power consumption of both CPUs and entire data centers are bringing an end to this era of easy scalability. To get the most CPU performance per Watt, future hardware will be characterised by less and less memory per processor, as well...
Zachary Louis Marshall
(Lawrence Berkeley National Lab. (US))
15/10/2013, 13:30
Event Processing, Simulation and Analysis
Oral presentation to parallel session
In the 2011/12 data the LHC provided substantial multiple proton-proton collisions within each filled bunch-crossing and also multiple filled bunch-crossings within the sensitive time window of the ATLAS detector. This will increase in the near future during the run beginning in 2015. Including these effects in Monte Carlo simulation poses significant computing challenges. We present a...
Mike Hildreth
(University of Notre Dame (US))
15/10/2013, 13:55
Event Processing, Simulation and Analysis
Oral presentation to parallel session
Within the last year, design studies for LHC detector upgrades have begun to reach a level of detail that requires the simulation of physics processes with simulation performance at the level provided by Geant4. Full detector geometries for potential upgrades have been designed and incorporated into the CMS software. However, the extreme luminosities expected during the lifetimes of the...
Robert Johannes Langenberg
(Technische Universitaet Muenchen (DE))
15/10/2013, 14:15
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The track reconstruction algorithms of the ATLAS experiment have demonstrated excellent performance in all of the data delivered so far by the LHC. The expected large increase in the number of interactions per bunch crossing in the future introduce new challenges both in the computational aspects and physics performance of the algorithms. With the aim of taking advantage of modern CPU design...
Roberto Castello
(Universite Catholique de Louvain (BE))
15/10/2013, 14:40
Event Processing, Simulation and Analysis
Oral presentation to parallel session
Fast and efficient methods for the calibration and the alignment of the detector play a key role in ensuring reliable physics performance to an HEP experiment. CMS has set up a solid framework for alignment and calibration purpose, in close contact with the detector and physics needs. The about 200 types of calibration and alignment existing for the various sub-detectors are collected by...
Phillip Urquijo
(Universitaet Bonn (DE))
15/10/2013, 15:45
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The Belle II experiment is a future flavour factory experiment at the intensity frontier SuperKEKB e+e- collider, KEK Japan. Belle II is expected to go online in 2015, and collect a total of 50 ab-1 of data by 2022. The data will be used to study rare flavour phenomena in the decays of B- and D- mesons and tau-leptons, as well as heavy meson spectroscopy. Owing to the record breaking...
Mathias Michel
(Helmholtz-Institut Mainz)
15/10/2013, 16:10
Event Processing, Simulation and Analysis
Oral presentation to parallel session
A large part of the physics program of the PANDA experiment at FAIR
deals with the search for new conventional and exotic hadronic states
like e.g. hybrids and glueballs. In a majority of analyses PANDA will
need a Partial Wave Analsis (PWA) to identify possible candidates and
for the classification of known states. Therefore, a new, agile and
efficient PWA-Framework will be...
Dr
Tom Whyntie
(Queen Mary, University of London/The Langton Star Centre)
15/10/2013, 16:30
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The Langton Ultimate Cosmic ray Intensity Detector (LUCID) experiment [1] is a satellite-based device that uses five Timepix hybrid silicon pixel detectors [2] to make measurements of the radiation environment at an altitude of approximately 660km, i.e. in Low Earth Orbit (LEO). The experiment is due to launch aboard Surrey Satellite Technology Limited's (SSTL's) TechDemoSat-1 in Q3 of 2013....
Mihai Niculescu
(ISS - Institute of Space Science (RO) for the ALICE Collaboration)
15/10/2013, 16:55
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The visualization applications called event displays, are used in every high energy physics experiment as a fast quality assurance method for the entire process flow: starting from data acquisition, data reconstruction & calibration and finally obtaining the global view: a 3D view.
In this paper, we present a method that parallelizes this process flow and show how it is used for the ALICE...
Dr
Saracco Paolo
(INFN Genova (Italy))
15/10/2013, 17:25
Event Processing, Simulation and Analysis
Oral presentation to parallel session
Uncertainty Quantification (UQ) addresses the issue of predicting non-statistical errors affecting the results of Monte Carlo simulations, deriving from uncertainties in the physics data and models they embed. In HEP it is relevant to particle transport in detectors, as well as to event generators.
We summarize recent developments, which have established the mathematical ground of an exact...
Wouter Verkerke
(NIKHEF (NL))
15/10/2013, 17:50
Event Processing, Simulation and Analysis
Oral presentation to parallel session
RooFit is a library of C++ classes that facilitate data modeling in the ROOT environment. Mathematical concepts such as variables, (probability density) functions and integrals are represented as C++ objects. The package provides a flexible framework for building complex fit models through classes that mimic math operators. For all constructed models RooFit provides a concise yet powerful...
Werner Wiedenmann
(University of Wisconsin (US))
17/10/2013, 11:00
Event Processing, Simulation and Analysis
Oral presentation to parallel session
An accurate simulation of the trigger response is necessary for high quality data analyses. This poses a challenge. For event generation and simulated data reconstruction the latest software is used to be in best agreement with the reconstructed data. Contrary the trigger response simulation needs to be in agreement with when the data was taken. The approach we follow is to use trigger...
Andrea Giammanco
(Universite Catholique de Louvain (BE))
17/10/2013, 11:25
Event Processing, Simulation and Analysis
Oral presentation to parallel session
A framework for Fast Simulation of particle interactions in the CMS detector has been developed and implemented in the overall simulation, reconstruction and analysis framework of CMS. It produces data samples in the same format as the one used by the Geant4-based (henceforth Full) Simulation and Reconstruction chain; the output of the Fast Simulation of CMS can therefore be used in the...
Chiara Debenedetti
(University of Edinburgh (GB))
17/10/2013, 11:45
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The huge success of Run 1 of the LHC would not have been possible without detailed detector simulation of the experiments. The outstanding performance of the accelerator with a delivered integrated luminosity of 25 fb-1 has created an unprecedented demand for large simulated event samples. This has stretched the possibilities of the experiments due to the constraint of their computing...
Mike Hildreth
(University of Notre Dame (US))
17/10/2013, 12:10
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The total amount of Monte Carlo events produced for CMS in 2012 is about 6.5 billion. In the future run at 14 TeV larger datasets, higher particle multiplicity and higher pileup are expected. This is a new challenge for the CMS software. In particular, increasing the speed of Monte Carlo production by a significant factor without compromising the physics performance is a highly-desirable goal....
Markus Frank
(CERN)
17/10/2013, 13:30
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The geometry, and in general, the detector description is an essential component for the development of the data processing applications in high-energy physics experiments. We will present a generic detector description toolkit, describing the guiding requirements and the architectural design for the main components of the toolkit, as well as the main implementation choices. The design is...
Prof.
Adele Rimoldi
(Universita e INFN (IT)), Dr
Pierluigi Piersimoni
(Universita de Pavia and INFN)
17/10/2013, 13:55
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The Italian National Centre of Hadrontherapy for Cancer Treatment (CNAO โ Centro Nazionale di Adroterapia Oncologica) in Pavia, Italy, has started the treatment of selected cancers with the first patients in late 2011. In the coming months at CNAO plans are to activate a new dedicated treatment line for irradiation of uveal melanomas using the available active beam scan. The beam...
Dr
Adam Lyon
(Fermilab)
17/10/2013, 14:15
Event Processing, Simulation and Analysis
Oral presentation to parallel session
Flexibility in producing simulations is a highly desirable, but difficult to attain feature. A simulation program may be written for a particular purpose, such as studying a detector or aspect of an experimental apparatus, but adapting that program to answer different questions about that detector or apparatus under different situations may require recoding or a separate fork of the program....
Dr
Gabriele Cosmo
(CERN)
17/10/2013, 14:40
Event Processing, Simulation and Analysis
Oral presentation to parallel session
The Geant4 simulation toolkit has reached maturity in the middle of the previous decade, providing a wide variety of established features coherently aggregated in a software product which has become the standard for detector simulation in HEP and is used in a variety of other application domains.
We review the most recent capabilities introduced in the kernel, highlighting those which are...
