6533b826fe1ef96bd1283bf4

RESEARCH PRODUCT

Status of the PANDA Barrel DIRC

G KalicyH KumawatJ SchwieningR DzhygadloA GerhardtR HohlerD LehmannB LewandowskiM PatsyukK PetersG SchepersL SchmittC SchwarzM TraxlerM ZühlsdorfV Kh DodokhovA VodopianovA BrittingW EyrichA LehmannF UhligM DürenK FöhlA HayrapetyanP KochB KröckO MerleE CowieT KeriR MontgomeryG RosnerB SeitzP AchenbachM CardinaliM HoekC SfientiM ThielC UgurP BühlerL GruberJ MartonK SuzukiE WidmannThe Panda Cherenkov Group

subject

PhysicsParticle physicsLarge Hadron ColliderPhotonPhysics::Instrumentation and DetectorsDetectorParticle identificationNuclear physicsDetection of internally reflected Cherenkov lightAntiprotonPhysics::Accelerator PhysicsFacility for Antiproton and Ion ResearchHigh Energy Physics::ExperimentNuclear ExperimentInstrumentationMathematical PhysicsCherenkov radiation

description

The PANDA experiment at the future Facility for Antiproton and Ion Research in Europe GmbH (FAIR) at GSI, Darmstadt will study fundamental questions of hadron physics and QCD using high-intensity cooled antiproton beams with momenta between 1.5 and 15 GeV/c. Hadronic PID in the barrel region of the PANDA detector will be provided by a DIRC (Detection of Internally Reflected Cherenkov light) counter. The design is based on the successful BABAR DIRC with several key improvements, such as fast photon timing and a compact imaging region. Detailed Monte Carlo simulation studies were performed for DIRC designs based on narrow bars or wide plates with a variety of focusing solutions. The performance of each design was characterized in terms of photon yield and single photon Cherenkov angle resolution and a maximum likelihood approach was used to determine the π/K separation. Selected design options were implemented in prototypes and tested with hadronic particle beams at GSI and CERN. This article describes the status of the design and R&D for the PANDA Barrel DIRC detector, with a focus on the performance of different DIRC designs in simulation and particle beams.

yearjournalcountryeditionlanguage
2014-05-28Journal of Instrumentation
https://doi.org/10.1088/1748-0221/9/05/c05060