HCAL DPG report

1. S. Banerjee, O. Kodolova HCAL DPG report Sunanda Banerjee – SINP Olga Kodolova – SINP MSU August 17, 2012

2. HCAL General Meeting Outline • Monitoring and calibration HF Raddam monitoring HF Raddam with data HBHE raddam monitoring • Phi-symmetry • Offline shifts • Noise WG

3. HCAL General Meeting HF Radiation damages measurements with raddam system Take 8 periods A.Volkov,D.Elumakhov

4. HCAL General Meeting HF Radiation damages measurements with data Data selected with HLT_Mu17_mu8 as relative change of E deposited in HF rings and corrected by NPV and the energy Cut (4 intervals in energy). 2 methods: - Ratio of average energies, aveE2/aveE1, with aveE=E_tot_deposited(ieta,Nvtx)/Nevts(Nvtx) - Ratio of mean energies Nvtx=[10-20] Nvtx=[5-20] Robert Chieleski Igor Vodopianov See update tomorrow, August 17, HCAL DPG

5. HCAL General Meeting HBHE first raddam measurements Depth1 L.Turchanovich N.Kulagin V.Skvortsov V.Talov V.Epshteyn D.Vishnevskyi Need to recheck with other measurements? Need to have HPD correction to verify what data see

6. HCAL General Meeting HE raddam with data Runs chosen with high instantaneous luminosity (~6e33): Period Runs dates p1 191718-191859 Apr 18-20 p2 194314-194480 May 17-19 p3 195913-195950 Jun 9-10 p4 196431-196531 Jun 15-18 p5 199318-199429 Jul 20-22 Igor Vodopianov Shuichi/Emine HT dataset Muon stream E>4 hits, p5 / p1 (Jul / Apr) vs ieta

7. HCAL General Meeting Phi-symmetry corrections in 2012 The phi-symmetry pass was done: for HF we use the weighted combination from NZS and iterative; for HBHE – only iterative method is used. HF HB HE

8. HCAL General Meeting Offline shifts Pavel Bunin, Ted Kolberg

9. HCAL General Meeting Noise WG MinBias 2012 CaloMet

10. HCAL General Meeting Back-up

11. HCAL General Meeting HBHE drift from 2011 to 2012 V.Epshteyn D.Vishnevskyi Gain updates is done regularly by Hcal Ops and is uploaded into condition DB by Database group: we need to have the gain tag to start the first 2012 calibration pass – this week or beginning of the next?

12. HCAL General Meeting Calibration procedure from 2011 to 2012 • HPD and PMT gain drift HPD gain drift correction once per month (as in 2011) PMT gain drift correction once per week (roughly each ~1/fb) due to much higher degradation rate of gains in PMT (change w.r.t. 2011) • HF Fibers degradation Radiation damage correction in HF based on the radiation damage measurements once per month (depends on the measurement) (change w.r.t. 2011) We consider HF is correctly calibrated with Z->ee corrections for the 2012 startup • The above corrections as HcalGain condition IOV will be uploaded by creation to _express, _prompt and _offline tags and (by agreement) to _hlt tag

13. HCAL General Meeting Calibration procedure (continuation) • phi-symmetry corrections with iterative and NZS method (as in 2011) during technical stops while the needed statistics is available • Isolated track calibration (as in 2011) during technical technical stops while the needed statistics is available • Absolute scale in HF with Z->ee corrections (Long fibers). Short fibers will be calibrated using Long fibers calibration and MC correction for ratio between Long and short taking into account RadDam estimation for Short fibers • The above corrections as HcalRespCorrs condition IOV will be uploaded by approval to_express, _prompt, _offline and _hlt tags