HCAL Data analysis (performance) group

Introduction

At present the goal of this group is train young students for Run-II data analysis of HCAL system. But, this is not only running existing code, but also develop the code itself, which can be put in online DAQ monitor, calibration tools and/or prompt analysis packages. For basic codes to analysis HCAL data and some of the earlier analysis can be found in (twiki).

List of topics for analysis and code development, along with the associated people and its progress are here (evolving with time) are,

1. Analyser to make common rootuple for this group and may be along with other subgroups (Kunal Kisan Kothekar).

2. Measurement and monitoring of large individual signal and/or coherent signal in HBHE, HO, HF and determination of source of these signals,

* HPD/SiPM/PMT noise : Signals over a certain threshold or largest (top 3-4 towers) in an event. Identify those towers.

    • RM/RBX noise : Multiplicity of towers with different energy threshold. Mark noisy RM/RBX.

The following runlist is extracted from the Run Summary pages inquiring for runs taken during October 2014 to March 2015 with "HCAL+ECAL" components working and at least 100K events.

Run Mag. Field Dataset No. of Events files lumis size Triggers
237490 0 T Cosmics 3469319 47 1396 165.2 GB  
MinimumBias 5385028 78 1396 250.9 GB  
HcalHPDNoise - - - -  
237346 0 T Cosmics 3426569 30 1368 168.8 GB  
MinimumBias 355087 5 1368 16.8 GB  
HcalHPDNoise - 1 1368 360.9 KB  
237267 0 T Cosmics 1595288 11 863 38.3 GB  
MinimumBias 2797674 21 863 68.3 GB  
HcalHPDNoise 77578 1 863 2.0 GB  
237251 0 T Cosmics 4830999 87 1952 255.1 GB  
MinimumBias 5709013 104 1952 294.9 GB  
HcalHPDNoise 177944 3 1952 9.4 GB  
237243 0 T Cosmics 2754266 46 1109 146.4 GB  
MinimumBias 3701439 64 1109 192.9 GB  
HcalHPDNoise 102310 2 1109 5.4 GB  
237239 0 T Cosmics 5222911 99 2105 274.5 GB  
MinimumBias 5994907 113 2105 308.1 GB  
HcalHPDNoise 195657 3 2105 10.3 GB  
237205 0 T Cosmics 1899160 35 767 92.0 GB  
MinimumBias 1786762 30 767 84.2 GB  
HcalHPDNoise 71480 1 767 3.5 GB  
237068 0 T Cosmics 4742193 84 1934 226.2 GB  
MinimumBias 3370977 42 1934 155.0 GB  
HcalHPDNoise 1417987 17 1934 66.2 GB  
236905 0 T Cosmics 3571778 62 1544 179.8 GB  
MinimumBias 2606904 31 1544 126.7 GB  
HcalHPDNoise 138575 2 1544 6.9 GB  
236767 0 T Cosmics 3543570 54 1402 170.3 GB  
MinimumBias 3435567 53 1402 160.0 GB  
HcalHPDNoise - 1 1402 367.6 KB  
236250 0 T Cosmics 4293582 64 1743 196.2 GB  
MinimumBias 4523399 64 1743 199.5 GB  
HcalHPDNoise - 1 1743 434.4 KB  
236234 0 T Cosmics 1910852 28 777 86.1 GB  
MinimumBias 2022970 28 777 87.8 GB  
HcalHPDNoise - 1 777 245.2 KB  
235994 0 T Cosmics 1872488 27 786 79.7 GB  
MinimumBias 2067612 27 786 84.6 GB  
HcalHPDNoise - 1 786 246.9 KB  
235843 0 T Cosmics 2463120 39 1070 108.2 GB  
MinimumBias 3088002 40 1070 131.3 GB  
HcalHPDNoise - 1 1070 302.5 KB  
235691 0 T Cosmics 1805646 15 779 85.4 GB  
MinimumBias 198227 3 779 9.0 GB  
HcalHPDNoise - 1 779 245.6 KB  
235316 0 T Cosmics 2712340 24 989 137.1 GB  
MinimumBias 259059 3 989 12.5 GB  
HcalHPDNoise - 1 989 286.7 KB  
234650 0 T Cosmics 3527429 61 1461 176.6 GB  
MinimumBias 4154345 61 1461 204.4 GB  
HcalHPDNoise - 1 1461 379.1 KB  
234556 0 T Cosmics 2755669 45 902 147.9 GB  
MinimumBias 2617209 45 902 136.6 GB  
HcalHPDNoise - 1 902 269.7 KB  
234407 0 T Cosmics 6829209 112 2232 354.4 GB  
MinimumBias 6630844 112 2232 335.4 GB  
HcalHPDNoise - 1 2232 530.3 KB  
234397 0 T Cosmics 3906111 64 1273 199.8 GB  
MinimumBias 3850247 64 1273 191.8 GB  
HcalHPDNoise - 1 1273 342.3 KB  
234390 0 T Cosmics 2363520 40 770 125.4 GB  
MinimumBias 2335664 40 770 120.8 GB  
HcalHPDNoise - 1 770 243.8 KB  
234304 0 T Cosmics 4734889 233 1595 849.5 GB  
MinimumBias 4686597 233 1595 833.6 GB  
HcalHPDNoise - 1 1595 405.4 KB  
234193 0 T Cosmics - 1 994 287.7 KB  
MinimumBias 4232231 66 994 237.4 GB  
HcalHPDNoise - 1 994 287.7 KB  

3. Spectrum of random HCAL noise, from pedestal noise O(100MeV) to TeV scale noise in Global run. Variation of shape/spike with time/run/lumi. Try to correlate these variation with other factors, e.g., temperature, HV etc (Prolay Mal)

4. Studies of HB response to cosmic muon for calibration co-efficient before data taking(Amandeep).

5. MC Studies of HF PMT hits and fiber bundle hits, including a development of the HF PMT hit simulation.

6. Look in details at the data collected with the new PMTs in HF during Run I to understand the saturation effect and its effect in Run II (Yalchin).

7. HE radiation damage studies with collision data and development of monitoring tool.

8. Analysis of Run 1 data to check the time synchronization of the channels in HBHE, with the goal to measure the precision with which we need to time-in the HBHE for 25ns reconstruction.

9. Using existing standard code, setup data mixing tools particularly for HCAL system to study Phase II scenario in HCAL

10. Relative weight factor of HO with respect to HB to improve JET energy resolution and MET performance (Pawan Kumar Netrakanti).

11. Using 2012 data, test the effect of of layerwise clustering algorithm in Jet/MET (Gobinda Majumder).

Goal is to finalise all these by June this year.

-- GobindaMajumder - 2015-01-26

Edit | Attach | Watch | Print version | History: r8 < r7 < r6 < r5 < r4 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r8 - 2016-02-04 - GobindaMajumder
 
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    CMSPublic All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright & 2008-2019 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback