Overview of Phase 0 Experiment with Straw Trackers at HADES

The Phase 0 Experiment involves including straw trackers in the program before PANDA commences at HADES. The upgrade features two new Forward Straw Tracker stations (STS1, STS2) for testing under experimental conditions. The physics program includes radiative hyperon decays, with STS1/2 tasked for small polar-angle track reconstruction. Various groups are involved, and synergies with FE-ASIC and TRB3/DAQ systems are highlighted. Timelines for construction and installation are outlined, aiming for the start of experimentation by the end of 2018.

• Phase 0 Experiment
• Straw Trackers
• HADES
• PANDA
• Physics Program

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1. PANDA Phase 0 Experiment: Straw Trackers at HADES 6-Dec-2016 | Peter Wintz (FZ J lich) Mitglied der Helmholtz-Gemeinschaft 59. PANDA CM, FAIR, Dec-6th, 2016

2. Outline Phase 0 Straw Trackers Overview Straw stations at HADES Deliverables for PANDA day-1 Mitglied der Helmholtz-Gemeinschaft 6/12/2016 Peter Wintz - PHASE 0 Straws - TRK Session p. 2

3. Overview: Phase 0 Experiment Idea to include straw trackers in experiment program before PANDA starts Upgrade HADES with two new Forward Straw Tracker stations: STS1, STS2 Test straw trackers and readout system under experiment condition Same (similar) straw module design as PANDA-FT, later use in PANDA Phase 0 experiment starts (end) 2018 with first beam at SIS 18 Physics program: radiative hyperon decays, .. also part of PANDA program STS1/2 tasks: small polar-angle (baryon) track reconstruction ( < 6.5 ) HADES measures dileptons and mesons Mitglied der Helmholtz-Gemeinschaft Involved PANDA/HADES groups: Cracow, Julich, Orsay .. Synergies: Straws + FE-ASIC (PANDA), TRB3/DAQ (HADES) 6/12/2016 Peter Wintz - PHASE 0 Straws - TRK Session p. 3

4. Phase-0 Straw Trackers STS at HADES STS1: 4 double layers, angles 0 , 90 , 0 , 90 640 straws, 4x5 modules a 2x16 straws Same straw length (77 cm) as FT 4 ~ 77 x 77 cm2active area, beam hole ~ 8 x 8 cm2 STS2: 4 double layers, angles 0 , 90 , +45 , -45 896 straws, 4x7 modules Same straw tube length (125 cm) as FT 5,6 ~ 113 x 113 cm2 active area, beam hole ~16 x 16 cm2 2 tracking stations STS1 STS2 STS2 STS1 Mitglied der Helmholtz-Gemeinschaft 160 cm 6/12/2016 Peter Wintz - PHASE 0 Straws - TRK Session p. 4

5. STS Mounting to HADES ECAL Frame From P. Salabura & J. Smyrski Mitglied der Helmholtz-Gemeinschaft 6/12/2016 Peter Wintz - PHASE 0 Straws - TRK Session p. 5

6. STS Roadmap Timelines for phase 0 program: 2017 STS construction, 2018 installation at HADES, end 2018 first beam at SIS18 2018-2020 experiment Work packages: STS1 with Julich straws (STT materials), FT module adaption (front-end) STS2 with Krakow straws, full FT 5/6 module design Mech. frames for STS1+2 by Krakow, Orsay, .. FE-ASIC/TRB3 readout from STT pre-series system (available 2018) Mitglied der Helmholtz-Gemeinschaft Julich straw series productions Straw productions for STT will end 2017/18 Insert short production cycle for STS1 (640 straws) in 2017 6/12/2016 Peter Wintz - PHASE 0 Straws - TRK Session p. 6

7. Phase 0 Deliverables for Day-1 Full PANDA-FT system test in experiment environment at HADES Readout system set up, calibration & data analysis methods (PID) Student education with experiment program (i.e. hyperon decays) Cost & time efficient test program scenario (2017-2020) Full funding and work package plan set up Exploitation of synergies (STT/FT) and PANDA/HADES Full FT design proof: straw modules, mech. frame, FE-ASIC / TRB3 readout Can serve as final test for PANDA-FT Later use of STS2 modules in FT 5 or 6 (~ 25%) Later use of STS1 modules in FT 4 (~35%) Mitglied der Helmholtz-Gemeinschaft 6/12/2016 Peter Wintz - PHASE 0 Straws - TRK Session p. 7

8. Thank you for your attention Mitglied der Helmholtz-Gemeinschaft 6/12/2016 Peter Wintz - PHASE 0 Straws - TRK Session p. 8