Status of the LHCb Experiment

Witzeling, W.

doi:10.1109/nssmic.2004.1462384

Cited by 2 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…LHCb consists of a silicon strip detector near the interaction region, a dipole magnet, a set of tracking detectors which use silicon sensors near the central region and drift chambers away from the central region, two RICH detectors, an electromagnetic calorimeter using lead plates interspersed with scintillator plates, a hadronic calorimeter using iron-scintillator tile technology and a muon detector system based on MWPCs and GEM chambers. A detailed description of LHCb can be found in [1], [2]. Particle identification is an essential component of the physics programme of LHCb.…”

Section: Lhcb and Its Rich Detectorsmentioning

confidence: 99%

Simulation of LHCb RICH detectors using GEANT4

Easo

Belyaev

Corti

et al. 2005

IEEE Trans. Nucl. Sci.

View full text Add to dashboard Cite

LHCb is one of the experiments at the Large Hadron Collider at CERN. It aims to make precision measurements of CP violation in the B-meson decays. The Detector simulation of LHCb was developed using the GEANT4 software toolkit interfaced to the LHCb software framework named GAUDI. This is now being used for a large production run of 210 million events. An important feature of the LHCb experiment is the use of Ring Imaging Cherenkov Counters (RICH) for particle identification. The Cherenkov photons created in this detector are focused onto an array of photodetectors made of Hybrid Photodiodes. An brief overview of the GEANT4 based LHCb simulation program named GAUSS will be given with the main emphasis on RICH simulation and its verification. 1 LHCb and its RICH detectorsThe main goals of the LHCb experiment are to make precision measurements of the CP violation in B-Meson decays and to look for signs of the physics beyond the 'Standard Model' in particle physics. The detector is configured as a single forward arm spectrometer with open geometry, optimized for detecting B-hadrons produced in the Large Hadron Collider (LHC). It is expected to collect about 2 × 10 9 bb events per year, from the startup of LHC. LHCb consists of a silicon strip detector near the interaction region, a dipole magnet, a set decay mode. In this case, the background is 10 times more than the signal and the RICH reduces the background contamination to a 10% level. The RICH detector will also be used to tag the flavour of the B-hadrons by identifying the kaons in the events where the b-quark decays into an s-quark through the cascade decay ( b → c → s). The RICH system in LHCb has two detectors. The first detector(RICH1) has aerogel and C 4 F 10 as radiators, covering the full LHCb acceptance of 300 mrad and is placed upstream of the LHCb dipole magnet in order to identify the particles with momenta between 2 and 70 GeV/c. The second detector(RICH2) has CF 4 as radiator and is situated downstream of the magnet. It covers an acceptance of 120 mrad (horizontal) × 100 mrad(vertical) and is for identifying particles with momenta up to 100 GeV/c. Hybrid Photo Diodes(HPD) with 80 mm photocathode diameter will be used to detect the Cherenkov photons in the wavelength range 200-600 nm. The HPDs encapsulate silicon pixel anodes bump bonded to readout chips. 2 Detector Simulation of LHCbDetector simulation is needed for preparing the analysis of the data to be collected and is an important part of developing the detectors in LHCb. Earlier versions of simulation written in FORTRAN using the GEANT3 package have been replaced with a more detailed simulation program using the GEANT4 [3] package. This new program named GAUSS has recently been used in a production run of 210 million events. The main features of GAUSS and the initial set of results from simulating the RICH detectors are the subjects of this paper.

show abstract

Section: Lhcb and Its Rich Detectorsmentioning

confidence: 99%

Simulation of LHCb RICH detectors using GEANT4

Easo

Belyaev

Corti

et al. 2005

IEEE Trans. Nucl. Sci.

View full text Add to dashboard Cite

show abstract

Simulation of LHCb RICH Detectors using GEANT4

Easo

Belyaev

Corti

et al.

IEEE Symposium Conference Record Nuclear Science 2004.

View full text Add to dashboard Cite

LHCb is one of the experiments at the Large Hadron Collider at CERN. It aims to make precision measurements of CP violation in the B-meson decays. The Detector simulation of LHCb was developed using the GEANT4 software toolkit interfaced to the LHCb software framework named GAUDI. This is now being used for a large production run of 210 million events. An important feature of the LHCb experiment is the use of Ring Imaging Cherenkov Counters (RICH) for particle identification. The Cherenkov photons created in this detector are focused onto an array of photodetectors made of Hybrid Photodiodes. An brief overview of the GEANT4 based LHCb simulation program named GAUSS will be given with the main emphasis on RICH simulation and its verification. 1 LHCb and its RICH detectorsThe main goals of the LHCb experiment are to make precision measurements of the CP violation in B-Meson decays and to look for signs of the physics beyond the 'Standard Model' in particle physics. The detector is configured as a single forward arm spectrometer with open geometry, optimized for detecting B-hadrons produced in the Large Hadron Collider (LHC). It is expected to collect about 2 × 10 9 bb events per year, from the startup of LHC. LHCb consists of a silicon strip detector near the interaction region, a dipole magnet, a set decay mode. In this case, the background is 10 times more than the signal and the RICH reduces the background contamination to a 10% level. The RICH detector will also be used to tag the flavour of the B-hadrons by identifying the kaons in the events where the b-quark decays into an s-quark through the cascade decayThe RICH system in LHCb has two detectors. The first detector(RICH1) has aerogel and C 4 F 10 as radiators, covering the full LHCb acceptance of 300 mrad and is placed upstream of the LHCb dipole magnet in order to identify the particles with momenta between 2 and 70 GeV/c. The second detector(RICH2) has CF 4 as radiator and is situated downstream of the magnet. It covers an acceptance of 120 mrad (horizontal) × 100 mrad(vertical) and is for identifying particles with momenta up to 100 GeV/c. Hybrid Photo Diodes(HPD) with 80 mm photocathode diameter will be used to detect the Cherenkov photons in the wavelength range 200-600 nm. The HPDs encapsulate silicon pixel anodes bump bonded to readout chips. 2 Detector Simulation of LHCbDetector simulation is needed for preparing the analysis of the data to be collected and is an important part of developing the detectors in LHCb. Earlier versions of simulation written in FORTRAN using the GEANT3 package have been replaced with a more detailed simulation program using the GEANT4 [3] package. This new program named GAUSS has recently been used in a production run of 210 million events. The main features of GAUSS and the initial set of results from simulating the RICH detectors are the subjects of this paper.

show abstract

Status of the LHCb Experiment

Cited by 2 publications

References 7 publications

Simulation of LHCb RICH detectors using GEANT4

Simulation of LHCb RICH detectors using GEANT4

Simulation of LHCb RICH Detectors using GEANT4

Contact Info

Product

Resources

About