LCWS06 (Linear Collider Workshop 2006)

Session

Simulation and Reconstruction

J

11 Mar 2006, 09:00

Indian Institute of Science

100. Simulation and Reconstruction Frameworks for the ILC

Dr Ties Behnke (DESY)

11/03/2006, 09:00

Simulation and Reconstruction

Oral

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...

104. DigiSim: a package to simulate signal collection, propagation, and conversion

Vishnu Zutshi (Northern Illinios University)

11/03/2006, 09:20

Simulation and Reconstruction

Oral

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,...

61. Fitting reconstructed track parameters using weight matrix

Dr Nikolai Sinev (University of Oregon)

11/03/2006, 09:40

Simulation and Reconstruction

Oral

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.

99. Marlin and MarlinReco, a status report on recent software developments

Dr Oliver Wendt (DESY)

11/03/2006, 10:00

Simulation and Reconstruction

Oral

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,...

96. Simulation and Reconstruction in the IV Concept

Dr Corrado Gatto (INFN Lecce)

13/03/2006, 09:00

Simulation and Reconstruction

Oral

"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"

106. Performance of GLD detector

Dr Tamaki Yoshioka (ICEPP, Univ. of Tokyo)

13/03/2006, 09:20

Simulation and Reconstruction

Oral

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.

101. Calorimeter energy calibration using the energy conservation law

Dr Vasiliy Morgunov (DESY and ITEP)

13/03/2006, 09:40

Simulation and Reconstruction

Oral

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...

83. PandoraPFA : A new Particle Flow Algorithm

Dr Mark Thomson (University of Cambridge)

13/03/2006, 10:00

Simulation and Reconstruction

Oral

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.

105. The Directed-Tree clustering algorithm for Particle Flow Reconstruction

Vishnu Zutshi (Northern Illinios)

13/03/2006, 11:00

Simulation and Reconstruction

Oral

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...

79. Particle Flow Algorithm for the SiD Concept

Usha Mallik (University of Iowa)

13/03/2006, 11:20

Simulation and Reconstruction

Oral

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...

117. Testing the performance of the PFA algorithms

Dr Adam Para (Fermilab)

13/03/2006, 11:45

Simulation and Reconstruction

Oral

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...