Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 1

CMS-HCAL Rochester activitiesCMS-HCAL Rochester activitiesCMS-HCAL Rochester activitiesCMS-HCAL Rochester activities

Arie Bodek/ P. de Barbaro

University of Rochester

August 11 , 2004

DOE Review

HCAL = Hadron Calorimeter

(an exercise in acronyms)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 2

CMS DetectorCMS Detector(Compact Muon Solenoid)(Compact Muon Solenoid)

CMS DetectorCMS Detector(Compact Muon Solenoid)(Compact Muon Solenoid)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 3

Outline Outline Outline Outline

• Overview - CMS-HCAL Rochester Group

• Past UR CMS HCAL Activities at UR/FNAL/CERN• Test Beam Motion Table (Slattery/Ginther/:obkowicz))• 1995 and 1996 HCAL Test Beam at CERN (data taking, analysis, NIM

article -A. Bodek, P. de Barbaro, H. Budd)• Design of the HCAL Optics System (A. Bodek,P. De Barbaro, H.Budd)• Construction of Scintillator Megatiles for Hadron Barrel Calorimeter (P.

de Barbaro, H. Budd, Rochester Techs and Engineer)• Rochester L3 Management Responsibilities, Fermilab FY98-F03(P. de

Barbaro)

• Currrent CMS HCAL Activities • HCAL Installation and Commissioning, CERN FY03-07 (P. de Barbaro)• Test Beam Activities, 2002, 2003, 2004 and analysis 05 (de Barbaro, H.

Budd)• Construction and Quality Control of Decoder/Photo-Detector Readout

Boxes (RBX) and Electronics 2004-05 (Y. S. Chung, Rochester Techs)

• Future - Integration of Rochester HCAL+TOB+Analysis efforts at CERN and FNAL (Bodek, Tipton, Demina, Slattery) 2005-06

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 4

Rochester CMS HCAL GroupRochester CMS HCAL GroupRochester CMS HCAL GroupRochester CMS HCAL Group• Physicists ( at Rochester, FNAL, CERN)Prof. Arie Bodek (CMS, CDF, NuTeV->MINERvA/JUPITER)Prof. Paul Slattery (mostly Dzero , CMS HCAL -> CMS TOB)Pawel de Barbaro (Senior Scientist)- At CERN - CMS (Installation/Test Beam)

Howard Budd (Senior Scientist) - At FNAL - CMS/CDF/MINERvA George Ginther (Senior Scientist) - At FNAL - CMS/D0 (mostly Dzero)Willis Sakumoto (Senior Scientist) - At FNAL - CMS/CDF (mostly CDF)Y, S. Chung (RA) - at FNAL - CMS (quality control)/CDF• Rochester Technical Staff (we had 6 techs, now down to 4)Dan Ruggiero (lab engineer) - CMS Project Funds (At FNAL)-->MINERvA???Janina Gielata (technician) - CMS Project Funds (At FNAL)->-> CMS-TOBAgnieszka Sanocka (technician) -CMS Project Funds (At FNAL)->-CMS -TOBHeng Bao Zeng (technician) - CMS Project Funds (AT FNAL)-->MINERvA???Tom Haelen (Engineer) - At Rochester (died 2004, interviewing new engin.)• Summer Students (test beam running and analysis)Matthias Imboden (Bern U., 2002-US citizen NSF-REU) - at CERN summerPawel Sopicki (Jagellonian U., 2003, 2004) - at CERN summer• Administrative Staff Sue Brightman and Judy Mack (large CMS

purchases)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 5

Brief history Brief history Brief history Brief history

Brief History - Rochester CDF-Plug Upgrade/CMS HCAL Group 1. We invented Megatile-Tile-Fiber Technology for SDC and CDF 2. We built the CDF-Plug Calorimeter and are currently maintaining it and

are responsible for its calibration in the Collision Hall3. We tested and calibrated CDF-Plug Upgrade Calorimeter in test beam4. We developed very large Megatile technology for CMS-Barrel HCAL5. We have built all the HCAL Megatiles. Optical Cables, and are now

completing Optical Decoders/Photodetector Readout Boxes (RBX) and Electronics for CMS -HCAL

6. We installed all the Megatiles into CMS-HCAL at CERN7. We have have built an ECAL module for the CERN test beam8. Rochester (Slattery-Lobkowicz-Ginther) built the massive test beam

motion table9. We have led and are leading test beam efforts and analyses at CERN10. We are now in charge of of CMS-HCAL installation at CERN (Pawel de

Barbaro)11. We are in charge of quality control of Optical decoder/Photo-detector

Readout Boxes and Electronics production at Fermilab (Yonsei Chung)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 6

Rochester current responsibilitiesRochester current responsibilitiesUR-CMS-HCAL groupUR-CMS-HCAL group

Rochester current responsibilitiesRochester current responsibilitiesUR-CMS-HCAL groupUR-CMS-HCAL group

• Continuing UR CMS HCAL Activities• Rochester L3 Management Responsibilities of all of US CMS

HCAL Optical Design FY98-F03 and construction at Fermilab has been completed and we are now in charge of the construction and Quality control of Decoder Readout boxes/Electronics at FNAL 2004-2005 (Yonsei Chung)

• Test Beam Motion Table ( built by Slattery/ Ginther/ Lobkowicz) used 1995 and 1996 HCAL Test Beam at CERN (Rochester also responsible for data taking, analysis, NIM article). We have lead the test Beam Activities, 2002, 2003 and are currently in charge of the 2004 (analysis 05) Test Beam run (Pawel de Barbaro)

• In charge of Installation and Commissioning, of CMS HCAL at CERN FY03-07 (Pawel de Barbaro)

• Begin integration of Rochester HCAL and Silicon TOB CMS efforts at CERN (2005-06)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 7

Construction progress in 04 Construction progress in 04 Construction progress in 04 Construction progress in 04

• Detector- Overall CMS HCAL assembly schedule- continuing: Hadron Barrel (HB) , Hadron-Endcap (HE), Hadron-Outer Calorimeter (HO) and Hadron Forward (HF)-Assembly of Endcap detectors schedule -continuing-Assembly of Hadron-Forward Cal (HF) modules

• Buildings - Extension of surface assembly hall (SX5) under way.

• Collision Halls - Construction of services for underground collision and service halls (ux5) underway

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 8

HCAL installation and testingHCAL installation and testingHCAL installation and testingHCAL installation and testing

• Hadron Barrel (HB); Hadron Endcap (EH) And Hadron Outer (HO) installation includes final check of Readout Box (RBX) units sent from FNAL (therefore it is important that are checked and electronics calibrated at FNAL first).

• Installation of cables, services at CERN• Followed by testing and calibration of

scintillators/optics response (using LEDs, and radioactive wire source) ,- Check procedure with muons, pions and electrons in test beam.

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 9

HB integration engineerHB integration engineerHB integration engineerHB integration engineer

• New engineer started working for HB (Hadron Barrel) as part of CERN integration group

• The priorities are:

1. HB Cable Covers2. HB RBX (Readout Boxes) covers3. HB Services Routing4. Installation of Scintillator Layers outside

the brass: L0 (inside) and L16 (external) can only be done in the Collision Hall.

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 10

3D model of a single Hadron 3D model of a single Hadron Barrel (HB) wedgeBarrel (HB) wedge

3D model of a single Hadron 3D model of a single Hadron Barrel (HB) wedgeBarrel (HB) wedge

•A 20 degree barrel Wege - 17 sampling layers, Brass Absorber

•RBX = Readout BoX (decoder, HPDs, and ADC’s)

•Optical Cables

•Tracker cables

•Place for ECAL Cables

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 11

Hadron Barrel Calorimeter: HB Hadron Barrel Calorimeter: HB half-barrel assembled in sx5half-barrel assembled in sx5

Hadron Barrel Calorimeter: HB Hadron Barrel Calorimeter: HB half-barrel assembled in sx5half-barrel assembled in sx5

18 Twenty Degree Wedges

•17 sampling layers

•Magnet return Yoke (1, 2, 3)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 12

HB assembly in Surface HB assembly in Surface Assembly hall SX5 Assembly hall SX5

HB assembly in Surface HB assembly in Surface Assembly hall SX5 Assembly hall SX5

•CERN-Russian Engineer working with de Barbaro on Assembly and installation process

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 13

Test beam 2004 goalsTest beam 2004 goalsTest beam 2004 goalsTest beam 2004 goals

Last test beam activity before HCAL and rest of CMS are lowered into the cavern.

New very-low-energy (~2-9 GeV) tertiary target has been set up on the H2 beamline. (will measure down to Ehad = 3 GeV).

• Study low energy pion response of calorimeters.

Test beam configuration includes • Two 20o barrel wedges

• One with standard eta-phi tower readout• One with longitudinal readout to study shower development (Special test)

• One HE sector• HF wedge calibration stand (7 wedges will be calibrated)• Data to start Thursday (Tomorrow) which is why Pawel is not at Rochester

(How to understand add ECAL and HCAL together with different electron and pion response at low energy). Totally non-compensating

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 14

Detector setup in H2 beamlineDetector setup in H2 beamline (Rochester built motion table)_ (Rochester built motion table)_Detector setup in H2 beamlineDetector setup in H2 beamline

(Rochester built motion table)_ (Rochester built motion table)_•Largest CMS ECAL Crystal Collection built by Rochester get 2.5 % at 100 GeV

•12%/

•Sqrt(E) + constantterm

•Two 20 degree HB Wedges

•HE 20

•degres

•HO •Coil Mockup

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 15

Results from HCAL Testbeam Results from HCAL Testbeam (2004)(2004)

Results from HCAL Testbeam Results from HCAL Testbeam (2004)(2004)

Module with longitudinal segmentation of HB allows the measurement of layer-by-layer calibration constants using muon data.

These measurements agree well with the calibration constants extracted from source calibration runs.

(First layer response set higher in order to account for extra material in front)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 16

Pion response as a function of Pion response as a function of depth (layer) 150 GeV data June 04depth (layer) 150 GeV data June 04

Pion response as a function of Pion response as a function of depth (layer) 150 GeV data June 04depth (layer) 150 GeV data June 04

•No ECAL

•With ECAL

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 17

HB1 Longitudinal SegmentationHB1 Longitudinal SegmentationSpecial TestSpecial Test

HB1 Longitudinal SegmentationHB1 Longitudinal SegmentationSpecial TestSpecial Test

Two models in Geant 4 (G4) simulation 1) 17 depths x 1 eta (sum of all eta towers)

)

•Need to test QGSP versus LHEP models against data For 5, 10, 20, and 100 GeV

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 18

Low Energy Test Beam Data Low Energy Test Beam Data important for understanding important for understanding

JetsJets

Low Energy Test Beam Data Low Energy Test Beam Data important for understanding important for understanding

JetsJetsTest beam Needs:

Particle ID with Cerenkov counter.

Muon halo veto.

Different G4 Simulations in advance - determine which parameters need to be tested

Important for Jet/MET simulation to understand both HCAL and combined ECAL/HCAL response to low energy hadrons! Plots for HCAL only - Gets much worse with ECAL in front - study in test beam (9 GeV hadrons give 4 GeV/ in test beam

HCAL aloneG4 Simulation

•In view of test beam results- low Ehad Monte Carlo for ECAL +HCAL currently being simulated

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 19

Hadron Outer (HO) Calorimeter installation 2 Hadron Outer (HO) Calorimeter installation 2

layers at low eta and one layer at high etalayers at low eta and one layer at high eta Hadron Outer (HO) Calorimeter installation 2 Hadron Outer (HO) Calorimeter installation 2

layers at low eta and one layer at high etalayers at low eta and one layer at high eta

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 20

Trial installation of Hadron Trial installation of Hadron Outer Calorimeter (HO) tray Outer Calorimeter (HO) tray Trial installation of Hadron Trial installation of Hadron

Outer Calorimeter (HO) tray Outer Calorimeter (HO) tray

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 21

Effect of short Tower #16 on L1 Trig. (I)

Simulation : CMSIM 133, reconstruction : ORCA_7_6_1appropriately modified to take into account geometry

QCD di-jet data samples

QCD di-jets with

pT = 80-120, 120-170

and 170-230 GeV -main contributors to the fake MET rate

^

QCD di-jets with

ET = 99-101 and

399-401 GeV at the part. level and =1.3-1.4

•Will Test Crack in Test beam

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 22

Hadron Endcap (HE) module Hadron Endcap (HE) module Hadron Endcap (HE) module Hadron Endcap (HE) module

HE•YE1 plate of Yoke Endcap

• ( 3 Plates 1,2,3 and -1, -2, -3)

•Early stage with brass only prior to scintillator installation

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 23

Optic patchpanel area

HV splice boxarea

HE+

1.5m

HE Optical Cable routing

Optic cables HV cables

•Scintillator+ source tubes already have been installed

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 24

Details of Hadron Endcap Details of Hadron Endcap (HE) cabling plant(HE) cabling plant

Details of Hadron Endcap Details of Hadron Endcap (HE) cabling plant(HE) cabling plant

•Four 5 degree sectors

•Water cooling for RBX and Muon Chambers

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 25

Hadron Endcap (HE) installation in Hadron Endcap (HE) installation in Surface Service Hall (SX5):Surface Service Hall (SX5):cutout zone for readout boxcutout zone for readout box

Hadron Endcap (HE) installation in Hadron Endcap (HE) installation in Surface Service Hall (SX5):Surface Service Hall (SX5):cutout zone for readout boxcutout zone for readout box

•Source tubes

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 26

CMS Hadron Forward CMS Hadron Forward Calorimeter (HF) assemblyCalorimeter (HF) assembly

CMS Hadron Forward CMS Hadron Forward Calorimeter (HF) assemblyCalorimeter (HF) assembly

Shielding

Support Table

Assembly of HF- has started: survey shows that maximum deviation from nominal geometry is < 0.4 mm

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 27

CMS Progress: Surface Assembly Hall - SX5 extension: steelwork Over SHAFT for detector (to be ready Dec-04)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 28

UXC55: CMS underground cavernUXC55: CMS underground cavernUXC55: CMS underground cavernUXC55: CMS underground cavern•CMS has received occupancy from construction firm (end of July 04)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 29

USC (underground service USC (underground service cavern)cavern)

USC (underground service USC (underground service cavern)cavern)

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 30

HB services installation in HB services installation in Underground Hall UX5Underground Hall UX5

HB services installation in HB services installation in Underground Hall UX5Underground Hall UX5

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 31

CMS schedule, v34.0: CMS schedule, v34.0: surface phasesurface phase

CMS schedule, v34.0: CMS schedule, v34.0: surface phasesurface phase

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 32

YE1 Iron Disk on which Endcap is mounted (Yoke YE1 Iron Disk on which Endcap is mounted (Yoke Endcap) schedule 5/8/04 YB-Yoke BarellEndcap) schedule 5/8/04 YB-Yoke Barell

YE1 Iron Disk on which Endcap is mounted (Yoke YE1 Iron Disk on which Endcap is mounted (Yoke Endcap) schedule 5/8/04 YB-Yoke BarellEndcap) schedule 5/8/04 YB-Yoke Barell

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 33

RBX

Test of installation of services on Test of installation of services on YE (Yoke Endcap) disk - High YE (Yoke Endcap) disk - High

Voltage, digital and low voltage Voltage, digital and low voltage

Test of installation of services on Test of installation of services on YE (Yoke Endcap) disk - High YE (Yoke Endcap) disk - High

Voltage, digital and low voltage Voltage, digital and low voltage

Arie Bodek/P de Barbaro, CMS Activities at Rochester , DOE Review, August 11, 2004 34

Summary UR CMS HCALSummary UR CMS HCALSummary UR CMS HCALSummary UR CMS HCAL

• Rochester is currently involved both in CMS-HCAL and CMS-Tracker (Tipton, Demina)

• In charge and Coordination of HCAL installation:• Integration/Assembly work in surface hall (SX5): cabling, construction/quality control and

installation of readout boxes, calibration of scintillators

• Progress in design and sequencing of Underground (UX5) installation of services

• Rochester in charge of test beam running and analysis in 2004 (HCAL+EMU)

• Participation in Physics Analysis and simulations

2004-2005 very important year for CMS