# Presentation: 427642

## HB TB2002 data analysis II

- Jordan Damgov
- Shuichi Kunori

## HB Testbeam 2002

*Dates:*
-  June 26-July 1  ECAL  // July 24-July 31 HF // Aug. 01- Sep. 18 HB
*Goals (HB): *
-  Demonstrate 144ch working
-  Demonstrate DCS going
-  Source data vs GeV/ADC                          (beam: e / μ / )
-  Muon signal in HO for muon trigger
-  Eta dependence (attenuation)
-  Eta dependence (timing)
-  Pulse shape (needs TDC)
-  Weight in Layer 0
- start construction of Calibration Database
-  *Additional Goals (left over from 1999TB) :*
-  Crack between wedges
-  e/pi (resolution and linearity)
-  Cerenkov light in clear fibers

## Test Beam Results: Data

- Run Statistics as of Tue Dec 3 05:15:03 2002
- Runs:    3302
- Spills:   54849
- Events: 105380936
- Data                                   Stream                    Runs           Events
- HCAL                                Data                        2527           79712947
- ECAL                                 Data                       2499           79314534
- Wire Chamber                    Data                       2502           84277881
- Phase                                  Data                       2505           84278481
- HCAL                                Histograms             483            19505455
- Run Type                         Runs                         Events
- Electron/Positron             783                            26467000
- Muon                                264                           10470000
- Pion                                  958                            35156200
- Radioactive Source          482                           19477725
- LED Pulser                      127                           183900
- Pedestal                            213                           946400
- Unknown                          203                          6708177
- ECAL Calib (e)                485                          6917934

-  ***μ******-******  225 GeV ***
*** ******e******-******  100, 20,30,50 GeV ***
***************  ******300, 20,30,50,100 GeV***

## Data and Software

***Data Files:***
-  ROOT format
-  All files (~300GB) are in the tape robots at CERN and Fermilab.
***Software for Analyses:***
- HTBDAQ_data
- http://flywheel.princeton.edu/~jmmans/HTBDAQ_data/
- Provides data access methods to DAQ root files
- whopper:/data1/HCAL_TB2002/libHTBDAQ_Data_v12-dCache.so
- with DCache interface
- Simple C++/root scripts to analyze data.
- e.g. wire source analysis

## Data and Software (2)

- Data and Software (2)

- H2Reco
- http://home.fnal.gov/~jdamgov/h2reco/
- Reads DAQ root file using HTBDAQ_data.
- Construct higher level objects, e.g. 1x1, 3x3, 5x5 ECAL or HCAL clusters in addition to raw ECAL and HCAL data, etc.
- Writes output root files.
- V11 was used for quick data validation during September runs.
- V12 – data analysis version.
- includes calibration by the wire source data
- hedestal calculation for each capID
- hardware error tracking system
- H2Reco Production (Fermilab)
- /pnfs/cms/HCAL_TB2002/v12_01/DATA_reco/        (DCache – tape backup)
- ~850 GB data
- 4-5Mb/s data access speed from CMS user analysis nodes (whopper,wonder,...)
- Production time : 2 days on bigmac farm – 130 CPUs (Hans Wenzel)

## Slide 6

## Pulse Shape

- Pi 300 GeV
- phi = 1

- eta  1

- 4

- 8

- 14

- QIE

- ph. tube

- Elias/Rohlf

## Slide 8

## Timing – eta dependence

## Slide 10

## HB+ECAL Resolution and Linearity

- =   (12318)%     (4.26.2)%

- E

- 

- HB calibrated with 50 GeV pions
- (MIP in ECAL)

- No energy leak corrections
- to 1995-1996 HCAL TB data
- were applied (8 INT ):
- 1.5% for 120 GeV
- 3.5% for 375 GeV

- 

- 

- Runs 3328-3345 (no e**-**)

*( H4 1995 TB: 127 / 6.5 )*

## HB+ECAL ...

## Slide 13

## Crosstalk

- Phi     Crosstalk %
-  1                  1.20
-  2                  1.45
-  3                  1.47
-  4                  1.20
-  5                  1.25
-  6                  1.31

## Crosstalk (2)

- Transverse Energy
- (w/o magnetic field)

- beam

- crosstalk

## Slide 16

## Cerenkov light in clear fibers

- Pi 300 GeV
- eta = 16

*Energy in single channel*
*eta = 1 : 7*

- beam
- eta = 1.5
- eta = 3.5

- beam
- eta = 1.5
- eta = 3.5

*400 000 events*

- 6 events: E  > 10 GeV

## Cerenkov light ...

***Phi 1***

*beam at phi 1.5*

*single event*

- 1

- 2

- 16

## Cerenkov light ...

***Phi 2***

*beam at phi 1.5*

*single event*

## Cerenkov light ...

***Phi 1***

*beam at phi 1.5*

*single event*

## Cerenkov light ...

*Energy in 7ch ********** ****127 GeV*

## Cerenkov light ...

- (E2-E1)/(E2+E1)

- (E3-E4)/(E3+E4)

*Ei: Energy in *
*Phi i eta 16*

**1**
**25%**

**2**
**75%**

**4**
**12.5%**

**3**
**87.5%**

- beam at Phi=1.5

- beam at Phi=3.5

- Runs: 2779-2788

- Runs: 2789-2800

## Slide 23

## Coherent noise

- 16 ch

- 4 ch

- 1 ch

***1.383***

***0.6944***

***0.347***

-                  RMS
- Phi    1ch     4ch     16ch
-  5     0.244  0.503  1.131
-  6     0.347  0.694  1.383
-  7     0.213  0.428  0.906
-  8     0.231  0.501  0.984

- 20 time slices
- energy sum

## Slide 25

## Multihit events

- Run 3328:
- ECAL+HCAL
- 100 GeV 

## Multihit events (2)

*... and energy measurement.*

- 2x e- ?

## Slide 28

## Additional

## Slide 30

## Slide 31