Peculiarities of the PANDA experimental setup Overview of the PANDA detector Particle Tracking: PANDA MVD Particle Identification: PANDA DIRCs Particle Calorimetry: PANDA EMC Data Acquisition PANDA Physics* Kai-Thomas Brinkmann, Manchester, Sep. 02, 2013 * cf. talk by Sören Lange, Sep. 4, 11:00

Many open questions in strong (non- (non-perturbative) QCD - charmonium - hybrids, glueballs and exotics - open charm Chiral symmetry in SU(3) and hadron mass modifications - hadrons in the nuclear medium Hypernuclei: “3 rd dimension“ of the chart of nuclides Electromagnetic channels and processes (virtual Compton scattering, generalized parton distributions, Drell-Yan, e-m formfactor of the proton in the time-like regime) rare decays, baryon spectroscopy, CP violation in the charm sector, antiproton physics at low energies PANDA physics KTB PANDA physics book, arxiv.org/pdf/

10 11 stored antiprotons, momentum range 1.5 to 15 GeV/c Luminosity at peak intensity: L = 2·10 32 cm -2 s -1 δp/p < 2∙10 -4 (stochastic cooling)interaction rate 2·10 7 s -1 Luminosity for highest resolution: L = 2·10 31 cm -2 s -1  p/p < 4∙10 -5 (electron cooling) KTB3 Antiproton Storage Ring HESR

KTB4 The PANDA Detector PANDA is a modular multi-purpose device: Excellent forward acceptance and resolution (Moderate) backward acceptance Wide dynamic range: particle momenta GeV/c Momentum measurements in magnetic fields (  p/p  1% ) Particle ID in wide momentum range e ,  ,  , K , p, … Electromagnetic calorimeter: ,  0,  e   High-resolution vertex detection: D , D 0 / K s, Λ, Σ, Ω... High interaction rate beyond 2·10 7 s -1 Intelligent trigger design for parallel data acquisition at high rates and small branching fractions PANDA Technical Status Report,

p 12 m 5 solenoid dipole antiProton ANnihilations at DArmstadt KTB luminosity detector

KTB6 PANDA Targets Hydrogen cluster jet Hydrogen pellets (  20 µm) Heavy targets: Gases Wires Foils

p 12 m 7 solenoid dipole straw trackers central tracker MVD PANDA Tracking KTB GEM trackers

p 12 m 8 TOF system DIRC Cherenkov solenoid dipole RICH µ counters KTB µ counters PANDA Particle ID disc DIRC

p 12 m 9 solenoid dipole forward calorimeter KTB PANDA Calorimetry EM calorimeter

p 12 m PANDA Magnets TDR ( arXiv: v1) 10 TOF system DIRC Cherenkov solenoid dipole forward calorimeter RICH straw trackers µ counters central tracker MVD antiProton ANnihilations at DArmstadt KTB PANDA STT TDR ( arXiv: v2) PANDA target TDR submitted PANDA EMC TDR ( arXiv: v1) PANDA µ detector TDR submitted luminosity detector GEM trackers µ counters RICH disc DIRC PANDA MVD TDR ( arXiv: v2)

KTB11 PANDA tracking ~40 cm

The PANDA MVD Project Silicon pixel sensors Small pixel cells – 100 x 100 µm 2 (10 7 channels) Specialized custom hybrid  ToPix Features:-.13 µ technology - ToT to retain (some) energy information - fast handling for high data rates - “untriggered” readout of data - rad hard within “typical” limits - minimum material load  sensor technology (EPI) Silicon strip sensors Less traversed material than pixels, smaller number of channels (200k) Features:- pitch of 50 or 65 µm - double-sided sensors, 285 µm thick - customized solution for free-running front-end KTB D+D+ ++ ++ K-K-

KTB13 The PANDA MVD Project Hardware: prototypes, PANDA grade Successful hardware tests in-beam: free-running data collection Rad hardness studies Mechanics / hardware Front-ends

KTB14 PANDA Barrel DIRC Forward DISC DIRC Particle ID:  / K / p

KTB15 PANDA - DIRCs Barrel DIRC: 22° ° polar angle 80 radiator bars, synthetic fused silica 1.7x3.3x250 cm 3 Double lens system, 30 cm oil-filled ~ 15 kchannels MCP-PMTs Single-photon Cherenkov angle resolution: 8-9 mrad Number of photoelectrons per track > 20 DISC DIRC: 5°-22° polar angle Octagonal disk, 2 m diameter, 2 cm thick Four quarters with polished and reflecting surfaces Dichroic mirrors on rim 432 focusing light guides digital SiPMs or MCP PMTs

KTB16 PANDA barrel ~ endcaps ~4.000 crystals PWO-II 200mm (23X o ) shashlyk-type sampling calorimeter e.m. calorimetry: e, γ

KTB17 PANDA - EMC Prototype experiments: Response of PROTO60 to photons PROTO60 energy resolution ( 3x3 matrix ) time resolution 1 ns

KTB18 PANDA - EMC Prototype experiments: Response of PROTO60 to 15 GeV CERN Development of new prototype PROTO120 PROTO60  /E ≥ 1.4%  (x,y)~1mm 120 PWO crystals read-out with 2 LAAPDs APFEL 1.4 as PA individual carbon fiber alveolae implementation of final SADCs

KTB19 PANDA – DAQ and “Triggers“ Autonomous recording frontends (zero-suppression, clusters, tracklets, …) data compression Time stamp synchronization Event selection in compute nodes FEE-Data Concentrator Feature extraction: time, amplitude, clusters Burst Builders Data combination: one burst ↔ one data block Online Computing Compute nodes, computer farms, GPU arrays accept/reject decision

KTB20 PANDA – Summary  Viable technical solutions for many detectors  Scaled prototypes in beam tests  Full integration studies underway  TDRs of subsystems  Extended simulations with full set of detectors  Technical issues/ detector optimization  Physics (  cf. Sören Lange, Wed.,Sep. 4, 11:00) PANDA is entering the construction phase PANDA is entering the construction phase First beams planned for 2018

Kai-Thomas Brinkmann, Manchester, Sep. 02, 2013 More than 400 physicists from more than 54 institutions in 17 countries