1. Some bad HBHE channels in CRUZET Runs Merve Ince Shuichi Kunori, Isa Dumanoglu Bayram Tali, Yalcin Guler, Serdal Damarseckin, Emine Gurpinar 1 HCAL analysis Meeting 19.03.2015

2. We have analyzed some CRUZET (23 February – 8 March, 2015) runs longer than 10 hours. We have used only one data sample “/eos/cms/store/data/Commissioning2015/MinimumBias/RECO/PromptReco -v1/” applying “L1_SingleJet16”. We are investigate the bad HBHE channels looking at run by run for CRUZET runs.(for 6 runs which more than 10 hours) 2 Introduction

3. Run Information for CRUZET 3

4. 4 ieta vs iphi in GeV for HB Run 234304 Run 234407 Run 236905 Run 237068 Run 237239 Run 237251 HB(ieta= -4,-9, -11, -14, iphi=2) Ieta= 15, 16, iphi=46 Ieta= 15, 16, iphi30 Ieta= 15, 16, iphi=26 Ieta= -14, -15, iphi=27 Ieta= 15, 16, iphi=46 Ieta= -14, -15, iphi=27 Ieta= 15, 16, iphi30 Ieta= 15, 16, iphi=26

5. 5 ieta vs iphi in GeV for HE Run 234304 Run 234407 Run 236905 Run 237068 Run 237239 Run 237251 Ieta= -15, -16, iphi=50 Ieta=-15, -16, iphi=54 (ieta=16, 17, iphi31) Ieta= -15, -16, iphi=50 Ieta=-15, -16, iphi=54 (ieta=20, iphi21)

6. 6 Energy distributions for some bad channels Run 234304 Run 234407 Run 237068Run 237239 Run 236905 Run 234407

7. Energy distributions for some good channels 7 Run 234304 Run 234407 Run 237068 Run 236905 Run 236250

8. Conclusion 8 We have investigated misbehaviour channels using the CRUZET. Run by run are analyzed and channels are listed here: Most of channels in HB and HE are stable with rms ~ 0.2 GeV and mean ~ 0.15 GeV. Some channels in ieta versus iphi plots for HBHE have wrong pedestal used in the offline reconstruction HE channels ietaiphi 2021 -1550 -1650 -1554 -1654 1631 1731 HB channels ietaiphi -42 -92 -112 -142 -1554 -1654 -1427 HB channels ietaiphi -1527 1630 1730

9. To do lists: We would like to check also bad channels depending on depth for HE and HB We will send mail to Salavat and Umesh to inform with regard to bad channels. CRAFT runs were taken between 12, March and 30 March, 2015 so they need to be analyzed and presented for next meeting. Comments and suggestions are welcome 9

10. 10 BACK UP

11. CMS HCAL ~ Hadron Calorimeter ~ 11

12. 12

13. HB Detector 13

14. 14

15. HO Detector 15

16. HF Detector 16

17. Depth Segmentation 17