Hadron Collider Physics

IFCA (CSIC-Univ. of Cantabria) + Univ. of Oviedo FPA - May 2011

C. Martínez Rivero & J. Cuevas

outline

• Antecedents & Groups composition

• Past Scientific activities – Detector contribution– Physics analysis

• Objectives & Funding request

• Summary

1

CMS experiment (Compact Muon Solenoid): Since mid 1994 Detector construction: muon alignment systemSoftware development detector specific: simulation/reconstruction packages, muon alignmentPhysics analysis: Top, SUSY, Higgs and EW physics

Antecedents

CDF experiment (Collider Detector at Fermilab): Since Feb. 1999 CDFII Detector upgrade & operation: scintillation counters, ToF detectorPhysics analysis: B physics, and Top quark physics (ttbar and single top), Higgs physics

2

Group CompositionName Position Institution %

C. Martinez Rivero IC IFCA 50

J. Marco PI IFCA 50

A. Ruiz CU IFCA 50

T. Rodrigo (1) CU IFCA 100

R. Vilar Contrat. Doctor IFCA 100

A. Lopez Virto Plantilla Invest.UC IFCA 50

G. Gomez (2) RyC IFCA 100

R. Marco T.S. Laboral IFCA 50

A. Yaiza Rodriguez JdlC IFCA 50

J. Cuevas (3) TU UO 100

J. Fernandez TU UO 50

I. Gonzalez RyC UO 50

L. Scodellaro Inv. Contratado IFCA 100

J. Piedra Inv. Contratado IFCA 100

A. Calderón Inv. Contratado IFCA 100

S.H Chuang Inv. Contratado IFCA 100

J. Vizan Inv. Postdoctoral UO 50

J. Gonzalez T.S. Contratado IFCA 50

C. Jorda FPU IFCA 100

L. Lloret FPI UO 100

J. Duarte FPI IFCA 100

S. Koshkarev FPU IFCA 100

S. Folgueras FPU UO 100

P. Lobelle FPU IFCA 100

J.A.Brochero FPI IFCA 100

Total FTE 20,0

(We are ~30 people from the IFCA and the Oviedo Univ. groups -including pre-doc students and technical personnel- signing CMS papers And ~7 people working in CDF )

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•25 people signing this project:

• 19 from IFCA

• 6 from UO.

Relevant scientific positions in CMS:

1. T. Rodrigo: Collaboration Board chairperson

2. G.Gomez: Muon Alignment coordinator

3. J.Cuevas: HWW coordinator

outline

• Antecedents & Groups composition

• Past Scientific activities – Detector contribution– Physics analysis

• Objectives & Funding request

• Summary

4

Survey and Photogrammetry techniques during detector installation and assembly

(from 0.3 to 1.5 mm)

Optical measurements in continuous mode during commissioning and operation

(from 200 to 500 m)

Alignment with tracks (cosmics, beam halo and collision tracks) at the different steps

(up to 100 m level)

Increase in Increase in Precision Precision &&Constraint Constraint Weak dof Weak dof

Validation Validation and and accuracyaccuracy

Measurements during chamber construction & chamber calibration before installation (internal chamber structure)

Detector contribution: Muon Alignment

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Aim: Aim: Monitoring the muon chamber relative positions Monitoring the muon chamber relative positions (barrel and endcap) with respect to the tracker.(barrel and endcap) with respect to the tracker.

Ali. Internal Barrel

Ali

. In

tern

al E

nd

Cap

Ali. Internal Tracker

Link Physics requirements:Tracker support structures at ~100 m Muon chambers at ~ 200 m in r

Muon align components: Light sources: 10000 LEDs + 150 lasers.~900 Photosensors + ~ 600 analog sensors (position, tilt sensors )Temperature, humidity and Magnetic probes ~ 30000 parameters in the geometrical reco Design Constrains: Hermeticity (the system must adapt to the detector geometry and the lack of space)• Dynamic range (several cm)• Radiation resistant• B y ΔB components immunity

Detector contribution: Optical Alignment System

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LD AR

DCOPS

ASPDs MABSLM

Link line

YE+1 YB+2

Detector contribution: Optical Alignment System

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AFTER ANY CLOSING OF THE DETECTOR, AFTER ANY CLOSING OF THE DETECTOR, THE ALIGNMENT SYSTEM ENTERS IN PLAY THE ALIGNMENT SYSTEM ENTERS IN PLAY

TO OBTAIN THE REAL GEOMETRYTO OBTAIN THE REAL GEOMETRY

Detector contribution: Optical Alignment System

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Measured geometry with the detector closed and no B field Detector geometry at 4T field (displacements/deformations from 0T to 4T)

Reconstruction of the Barrel and Endcap Geometry wrt Tracker referenceReconstruction of the Barrel and Endcap Geometry wrt Tracker reference

Bar

rel

The strong Magnetic field inside the solenoid pull the endcap central part towards the IP, in a cone shape

Movement of YE+1 Nose ~ 16mm

16mm

Permanent

Z-sag with field

~ 3 mrad~ 3 mrad

Detector contribution: Detector Geometry Reconstruction

PhD thesis of Mar Sobrón. 2009

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Motions of the CMS detector structures due to magnetic field forces as observed by the Link alignment system during the test of the 4 Tesla Magnet solenoid. By A.Calderon et al. Nucl. Instrum Methods A606(2009)

NominalCSC position

← Muon Endcap stations →ME+1ME+2ME+3 ME-1 ME-2 ME-4ME-3

zglobal

rglobal

CMS Side view

NominalCSC

position

x= 0

Not toscale

Pink: Aligned by Tracker-Muon Link system

Blue: Updated ! Aligned by

Muon Endcap optical & analog

(Z sensors) System Red: No

alignment yet

<x>:2.6mrad

<ΔzME+1/1>:-17.57 mm

<ΔzME-1/1>:16.73 mm

nom.

<ΔzME+1/2>:-5.04 mm

<ΔzME-1/2>:5.94 mm

<ΔzME-2/1>:10.23 mm

<ΔzME-3/1>:11.39 mm

<ΔzME-4/1>:8.49 mm

<ΔzME+2/1>:-0.97 mm

<ΔzME+3/1>:-4.31 mm

<ΔzME+4/1>:0.65 mm

<x>:2.4mrad

<x>:1.9mrad

<x>:2.2mrad

<x>:2.7mrad

<x>:1.6mrad

<x>:2.5mrad

<x>:1.6mrad

<x>:2.7mrad

<x>:2.2mrad

nom.

<x>:4.4mrad

< x>:4.4mrad

ME+4

<ΔzME+2/2>:6.74 mm

<ΔzME+3/2>:3.26 mm

<ΔzME-2/2>:2.74 mm

<ΔzME-3/2>:3.86 mm

B=3.8T

<ΔzME+1/3>:-4.08 mm

<ΔzME-1/3>:4.08 mm

<x>:1.3mrad

<x>:1.3mrad

Detector contribution: Detector Geometry Reconstruction

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Accuracy: difference between PG (~300 m) and fitted positions. 140140mm

Resolution: Measured-Simulated hit coordinate 8080mm

System performance:System performance:

Detector contribution: Reconstruction accuracy

11

Alignment corrections have been validated in different run conditionsAlignment corrections have been validated in different run conditions We observe: A centering of the residual distribution, with a RMS of displacements ~ 80 m and ~20 rad (as expected from construction tolerances) Stable results over several years (and locations assembly and collision halls)

Commisioning MTCC Local Runs

Aim to provide the internal geometry of DT chambers using all available data: Aim to provide the internal geometry of DT chambers using all available data: Quality Control measurements Survey & Photogrammetry measurements, and Cosmic tracks from commissioning runs

Detector contribution: Internal Alignment of DT chambers

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Cosmic and collision data are used to obtain alignment constants and Cosmic and collision data are used to obtain alignment constants and to check the performance of the survey corrections. Corrected to check the performance of the survey corrections. Corrected geometries are used in “real analysis”geometries are used in “real analysis”

Detector contribution: Alignment of DT chambers in wheels

PhD thesis of Pablo Martinez. 2010

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Alignment of the CMS Muon system with cosmic ray and beam halo muons. CMS Coll. JINST 5:T03020.2010

In CMS: Gervasio Gomez: coordinator of the CMS muon alignment.Luca Scodellaro: Barrel muon alignment contact person (DPG groups)Luca Scodellaro: Responsible for Ali-DB updating (ALCA-Software groups)

Detector contribution: Organization and tasks

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outline

• Antecedents & Groups composition

• Past Scientific activities – Detector contribution– Physics analysis

• Objectives & Funding request

• Summary

15

CDF-CMS physics analysis program

• CDF Physics: towards the analysis of the full dataset.

– Single-Top and low mass Higgs

• 2 Phd completed (B. Casal 2010, B. Alvarez 2010)

• CMS Physics: Just starting the LHC physics program: Study processes with two leptons + MET in all possible final states

– Before the start of the LHC data taking

• From PTDR to 10 TeV estimations

– 2 PhD completed (J. Vizan 2009, R. González 2010)

– Analysis of collision data

• J/Psi, and at the beginning of the data taking

• Top quark physics (1 PhD P. Lobelle, 2011)

• SM Higgs searches (one of the major goals for the LHC and its detectors) (3 PhD in progress, C. Jorda, J. Duarte, L. Lloret)

• SUSY searches: OS/SS (2 PhD in progress, J.A. Brochero, S. Folgueras)

16

CDF: Observation of Single top production• The last big step toward understanding the top

quark has been the observation of single-top production.

• Fundamental process as it is directly proving the EWK couplings of the top quark.

• Direct test of the Vtb element of the CKM matrix.

• The observation was achieved with the combination of several signatures and channels.

• Intense use of high-level optimization techniques.

• Test bed for the strategy in Higgs analyses.

• Measured cross sections by both collaborations in agreement with expectations from the SM.

• 3.2 fb-1 Observation paper published in PRL: T. Aaltonen et al. [CDF Collaboration], Phys. Rev. Lett. 103, 092002 (2009).

• 3.2 fb-1 Observation full documentation paper published in PRD: T. Aaltonen et al. [CDF Collaboration], Phys. Rev. D 82, 112005 (2010).

PhD by Bruno Casal (IFCA) 201017

CDF: Low Mass Higgs at Tevatron: WH → l bb• Reference channel due to the presence of a lepton: high sensitivity.

• Signature extended with “loose” (i.e. non-trigger) leptons to increase acceptance.

• Several channel used: 3-jet, tagging categories...

• Several optimizations: Neural-network, ME-based discriminants...

New result 5.6 fb-1 : 95% C.L. observed (expected) limit over the SM obtained in this signature: 3.6 (3.5) for a Higgs mass of 115 GeV/c2

2.7 fb-1 T. Aaltonen et al. [CDF Collaboration],

Phys. Rev. Lett. 103, 101802 (2009) 5.6 (4.8) 19

PhD Thesis by Barbara Alvarez 2010 18

CMS: Production

Paper accepted April 28 2011 to be published in Physical Review D

Low luminosity analysis, used also to measure muon reconstruction efficiency for thefirst time using collison data

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CMS: Top quark physics: di-leptons + jets• 3 pb-1 data sample

• Expect 10 events signal∼

• Dilepton features: • less frequent but easy to see• Clean final states, eμ the cleanest

• Cut and count method– Online: Single e OR μ trigger

• Two opposite-charge leptons pT>20 GeV. Lepton isolation

• Two or more jets (anti-Kt 0.5) with pT>30 GeV • MET > 30(20) GeV ee,μμ (eμ)• Veto Mll near Z in ee,μμ: |Mass-91| > 15GeV

• Backgrounds– Non-W/Z e/μ from j→ l rate in QCD dijets

• “jet→ e/μ”: Includes fakes and b/c->e/μ– DY in ee/μμ normalized to events near Z– MC for the rest: dibosons, tW, DY→ ττ

First top cross section measurement at LHC.σ(pp → t¯t) = 194 ± 72(stat.) ± 24(syst.) ± 21(lumi.) pb. Consistent with NLO prediction of 157.5 (+23.2 −24.4) pb for a top quark mass of mt = 172.5 GeV/c2

PhD Thesis Jesus Vizán / Patricia Lobelle (IFCA/U. Oviedo) Phys. Lett. B 695 (2011) 424-443 20

CMS: Measurement of the top-quark pair production cross section in the dilepton channel at s1/2=7 TeV

List of available ANs and supporting documents. Combination note (summarize contributions, starting point of the documentation) :

AN-11-018, Top dilepton working group : Combination of results and summary of measurement of the top pair production cross section at 7 TeV in 2010 data.

Cross section measurements without b-tagging : AN-10-410, UCSB/SD, FNAL : A measurement of top quark pair production cross section in dilepton

final states in pp collisions at 7 TeV. Reference analysis. AN-10-414, LIP : Measurement of the ttbar production cross section in the dilepton channel at 7TeV.

Reference analysis for NJet=1. AN-10-428, Desy : Measurement of the top quark pair production cross section in the dimuon decay

channel at 7 TeV. Cross-check analysis. AN-10-380, Korea U./SKKU : Top-quark pair production cross section measurement using particle flow

algorithm in proton-proton collisions at 7 TeV. Cross-check analysis.

Cross section measurements with b-tagging : AN-10-406, Oviedo/IFCA : Measurement of the ttbar cross section in the dilepton final state

using b-tagging at 7 TeV. Reference analysis. AN-10-389, IPHC : Measurement of the top dilepton cross section using b-tagging at 7TeV with

36.1pb-1 in pp collisions. Cross-check analysis. AN-10-410, include b-tagging SF estimate. Cross-check analysis.

Cross section normalized with Z events : AN-10-429, Desy : Measurement of the cross-section ratio of top-pair production and Z0 production in pp

collisions at 7 TeV using the CMS dectector. Reference analysis for the μμ channel. AN-10-410, Reference analysis for the ee channel.

21

CMS: Top pair cross section with full 2010 luminosityDilepton ee + + e

• More than a simple update : combination of different selections, more tests of data driven backgrounds estimate, detailed studies of trigger and lepton selection efficiencies.

• The final measurement is done by combining 9 measurements : 3 channels for 3 different selections.

pb (lum) 7 (sys) 14 (stat) 18168 ttPhD Thesis by Patricia Lobelle (IFCA/U. Oviedo)Final reading on Saturday! 22

CMS: Top quark pair cross section

• All measurements consistent between themselves

• Also consistent with theoretical NNLO predictions

23

CMS: SM HWW searchHiggs to WW is the most sensitive channel for Higgs searches in a wide range of Higgs masses. Among various channels for the Standard Model Higgs searches, CMS only published in 2011 the Higgs to WW in dilepton final state based on 2010 full luminosity.Other channels don’t have enough sensitivity with 36 pb-1 at 7 TeV.

24

CMS: WW Production and Higgs search

Drell-Yan has 4-order of magnitude highercross-section than Higgs(160) and the maindiscriminating power comes from requiringlarge missing energy

Top background (TTbar and TW) is the next dominant background for WW finalstate with the cross-section a factor of 20 larger than Higgs(160)

WW cross section: 41.1 ± 15.3 ± 5.8 ± 4.8 pbSM NLO σ(WW) = 41.1 ± 2.0 pbσ(WW)/σ(W) : (4.46 ± 1.66 ± 0.64) ✕ 10–4

SM NLO σ(WW)/σ(W) = (4.45 ± 0.30) ✕ 10–4

Lepton PT > 20 GeVProjected MET > 35 GeV or > 20 GeV for eμMll Veto: MZ ± 15 GeV Jet Veto: PT > 25 GeVTop Veto: bTag + soft-μ

two energetic isolated leptons (electron or muon), pt>20GeV - QCD, Wjets large missing transverse energy (MET)and Z veto - Drell-Yan jet veto (no jets above 25GeV Pt) – Top kinematics (mll, ) – WW Final step selection requirements are optimized for different Higgs mass hypotheses

25

CMS: WW Production Electro-weak WW production is an irreducible

background for Higgs to WW, which has a factor of 5 larger cross-section than Higgs(160).

Kinematic distributions is the primary source of discriminating power.

At low mass Higgs the angular correlation of the leptons helps to extract signal

WW and Higgs to WW get very similar kinematic distributions for 200-250GeV Higgs mass range. That is a region with worst sensitivity

Below 160GeV one of the W boson is off-shell leading to significant drop of the cross-section. Experimentally it becomes challenging since the minimum lepton pt threshold need to be lowered to ~10 GeV and Wjets background increases

Background estimation strategy is to use high dilepton mass region dominated by WW to estimate the amount of background in the Higgs signal region. 26

CMS: SM HWW searchAfter WW selection S/B still small, two analyses, one using sequential cuts and rely on MVA techniques

Phys.Lett. B699 (2011) 25-47

Dilepton mass distribution for the events passing the W+W− selection for SM Higgs signal and background

- Boosted Decision Treealgorithm to combine multiplediscriminating variables: mll, Δφll Δη,angles between MET and leptons,projected MET, transverse mass ofeach lepton & MET and final stateflavor (ee, eμ, μμ)- MVA gives roughly ~20-30% bettersensitivity

- 95% C.L. upper limit is a factor of 2 bigger than the Standard Model x-section for HWW160- A Standard Model extension with 4 fermion generations predicts roughly a factor of 9 enhancement in the x-section.- For this model Higgs is excluded in the mass range from 144GeV to 207GeV

PhD Thesis by Patricia Lobelle 27

CMS: Running at 7 TeV on 2011-2013(?)

ATLAS + CMS

≈ 2 x CMS

95% CL exclusion

3 sensitivity

5 sensitivity

1 fb-1 120 - 530 135 - 475 152 - 175

2 fb-1 114 - 585 120 - 545 140 - 200

5 fb-1 114 - 600 114 - 600 128 - 482

10 fb-1 114 - 600 114 - 600 117 - 535

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CMS: cMSSM – OS Dileptons + MET

30

•SUSY gluino cascades down to many leptons, jets & LSPs

•Select leptons PT1 > 20 GeV, PT2 > 10 GeV (ee,em,mm) + 2 Jets ET > 30 GeV

•Look in region HT > 300 GeV and y=MET/HT½ > 8.5 GeV½

CMS SUS-10-007, 14 Jan 2011

Limits for a specific choice of cMSSM space is shown.

Information is provided in the paper (acceptances etc.), for

setting limits on other choices or models.

Student: J.Andres Brochero 29

CMS: cMSSM – SS Dileptons + MET

31

SUSY squark/gluino cascades down to same sign leptons, jets & LSPs

Baseline: Select leptons PT1 > 20 GeV, PT2 > 10 GeV (e,mu or tau) + 2 Jets ET > 30 GeV

Background mainly from fake leptons and charge misidentifications

CMS SUS-10-004, 14 Jan 2011

Student: Santiago Folgueras30

Physics Analysis Facility (Tier-3)• We have built a dynamic and flexible computing infrastructure

– Based on a competitive central cluster with good connectivity and a powerful computer for each user

– Support both interactive and batch analysis– Resources can be reassigned according to evolving needs– Adiabatic upgrades possible Buy when needed Best performance/price

Current resources

General services: Batch queue, interactive pool, web publishing (wiki, blog, personal pages), backups, monitoring, dissemination portal and services, video conference,…

CMS services deployed: CMS Centre for remote detector operation (shifts), PhEDEx (transfers), FroNTieR (conditions database cache), PROOF Analysis Framework, CMSSW…

• Storage based on hadoop– Great performance based on commodity hardware– Storage can be added very easily

• A PROOF Analysis Framework was developed– Boosting the speed of our analysis development by fully

exploiting our resources• Continuous monitoring and optimization of the system

performance– Network bonding, disk partitioning, task distribution, etc…

32

Physics Analysis Facility (Tier-3)• Event processing

– Starts from AOD(SIM) Data-Tier format since 2010: faster, min. physics info, economic in terms of disk space, only format available at T2 since 02/2011

– Processed at Tier-2 (QCD large samples) and at Tier-3 (fast multiple iterative analysis of main backgrounds and signals)

– Skimming (10-15% eff.) & data format reduction from 200kB/ev to 30kB/ev

Year 2012 not completely defined for LHC• Higher instantaneous luminosity (5E34?)• Reprocessing of previous (2010/2011) data

2011 LHC evolution• Larger event content: up to 20 peak Pile-Up interactions• 3-7 fb-1 data expected at the end of 2011

2009-2010 numbers ~10TB per MC production campaign

/ ~1TB for ~5pb-1 of data taken per reprocessing ~3×108 data and ~5×108 MC events per production campaign distributed in several tenths of datasets~100k jobs to accomplish the task: produce a reduced set of data in ROOT format with the minimal physics content

40TB

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Physics Analysis Facility (Tier-3)• Needs for 2012-2014 strongly correlated with the pileup profile, i.e. the LHC

instantaneous luminosity• Increase of CMS HLT rate to 300 Hz has a less important effect

• Storage and CPU needs at Tier-3 expected to double during 2012 assuming:– LHC Linst upgrade to 5.1033 cm-2 s-1

(pileup goes up to 4-8)– 2 MC campaigns and 2 data

reprocessings per year – ROOT plain data format size:

conservative maximum of 50kB/event (1/12)

– Higher skimming efficiency : 20% (higher PT spectrum in data)

• 2013-14 scenario not fully defined yet:– LHC Linst upgrade?– Reprocessing of 2011-2012 data• Expected increase in storage and

CPU) needs of 10-15% w.r.t 2012 • Aligned with CMS pledges for Tier-2s

Pileup AOD Data (MB)

AOD MC (MB)

AOD Anal. Time (s)

0 0.126 0.176 41 0.137 0.187 52 0.148 0.198 64 0.169 0.219 78 0.214 0.264 810 0.224 0.274 9

2011

34

Organization and tasks

35

outline

• Antecedents & Groups composition

• Past Scientific activities – Detector contribution– Physics analysis

• Objectives & Funding request

• Summary

36

Objectives I: Muon Alignment

• Operation and maintenance of the hardware Muon Alignment System

– Regular operation of the system and update of geometrical DB’s

– Maintenance of the ISR-Alignment test stand together with the organization and provision of updates during shutdown periods

• Track alignment computations

– Control of AlcaReco samples to perfom alignment with tracks

– Performance of Global vs Standalone track alignment in order to detect biases Tracker vs Muon system

– Maintain the flow and integration of the geometrical Database construction and access by CMS software

37

Objectives II: CMS Physics Analysis

• Continue and reinforce our activity in physics analysis.– Study of Top and EW processes as main areas for the control of physics objects

• FR’s, efficiencies, b-tag, MET in close contact with POG’s

– Searches for Higgs using mainly the H->WW->lnulnu topology

• Use of MVA tools to separate signal from WW production

– Searches for SUSY using 2 leptons + MET + HT

• Either OS or SS leptons. Careful study of triggers. Rejection of main background (ttbar)

• Tier-3 Physics Analysis Facility

– Definition, acquisition, installation and maintenance of infrastructure.

– Installation and upgrading of Physics Analysis Packages.

– Support of interactive physics analysis (PROOF)

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Objectives III: CDF Physics Analysis

– To contribute to the analyses searching for the Higgs boson in the WH production channel at low masses, using the full statistic collected by CDF detector during the RUNII

– To maintain the computing and data storage infrastructure, in FNAL , IFCA and Oviedo, that will allow the optimal use of all the Tevatron available data statistics.

39

Funding Request

*Detector maintenance and operation Mainly in ESP (see next slides)

Scientific exploitation: CMS and CDF physics analysis Personnel: 3 postdocs IFCA + 1 graduate UO FPI: 2 IFCA + 1 UO Computing Infrastructure for CMS: Tier 3 Travel expenses: collaboration meetings & conferences

  IFCA UO IFCA UO

  k€ %

Personnel 360 90 25,8 23,3

Investment 107 84 7,7 21,8

Consumables 50 14 3,6 3,6

Travel 294 90 21.1 23.3

Others (*) 583 108 41,8 28,0

Total 1394 386    

Grant total 1780  

Per FTE & per year 29,7    

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ESP: CMS operation & maintenance (CMS-MoA-2008-001)

41

Based on the number of signatures per institution (26 IFCA + 6 UO) our global contribution is requested to be of 8 people per year at CERN, to be shared between UO & IFCA according to their weight

• We assume that 1/3 of this service work can be done remotely

• 8 people x 12 months x 2500€/month x 2/3 * 3 years = 480 k€

• Divided as: 390 k€ IFCA and 90 k€ UO

•Service work in alignment, muon DT’s, muon POG, ALCA group and Core Computing + central shifts

ESP: CMS operation & maintenance (CMS-MoA-2008-001)

42

outline

• Antecedents & Groups composition

• Past Scientific activities – Detector contribution– Physics analysis

• Objectives & Funding request

• Summary

43

Summary Summary The groups:

• During the last years the UO group has consolidated a very active group with significant presence in CMS.

• IFCA is a mature medium-size group with already significant research lines opened into the future: computing, hardware, software and analysis activities

The experiments: CMS detector and collaboration as a whole is in a good shape exploiting succesfully the full set of data being taken since LHC beginning of collisions

We have a sizeable presence in the CMS analysis groups with a good number of students and postdocs already involved plus senior positions in coordination of Physics teams.

We are fulfilling all our commitements with the collaboration, both in hardware and software, and of course we are eager to be able to continue … provided we have funds

We have a rather consistent plan & organization for the operation of the detector during data taking period (and the expertise to adapt to new conditions). This plan has been agreed with the Muon (& CMS) community

We have made an effort to shape the group activities and scientific program in CMS in a coherent way, trying to optimize all available resources (personnel, computing infrastructure, expertise and interest, etc..) 44

CDF is still producing good physics– Up to now the balance investment/profit is extremely positive. We have make

significant contributions to the experiment (and luckily they have been recognized and awarded) that we intend to terminate in a coherent way.

– Our physics program in CDF is coherent with the one in CMS. There is a good

overlap in terms of physics and personnel.

CMS PhD Thesis:

2010 Rebeca Gonzalez: Búsqueda del bosón de Higgs del Modelo Estandar en el canal de desintegración H->WW´->2MUNU en el experimento CMS del LHC

2010 Pablo Martinez: Desarrollo y aplicación de algoritmos de alineamiento para la optimización de la detección de muones en el experimento CMS del LHC

2009 Mar Sobrón: Geometría del detector CMS reconstruída con el sistema de alineamiento Link

2009 Jesús Vizán: Determinación de la sección eficaz de producción del quark top y su masa con el detector CMS en LHC

CDF PhD Thesis:

2010 Bárbara Álvarez:Search for the SM Higgs Boson associated with a W boson using matrix element technique at the CDF detector at the Tevatron . 2010 Bruno Casal: Medida de la sección eficaz de producción del quark single top y del elemento V_tb de la matriz CKM en CDF RunII

2007 Enrique Palencia: Measurement of the ttbar production cross section in pp collisions at s=1.96 TeV using Lepton+jets events in CDF

SummarySummary

PhD Thesis in the last years inside our groups:

45

Previous budget status

• FPA2008-06112-C02-01 IFCA – Received 1000 k€ (with 247 k€ for personnel)– Level of expenditure up to now: 70%

20

Previous budget status

• FPA2008-06112-C02-02 UO – Received 280 k€ (with 70 k€ for personnel)– Remaining budget as of today: < 50 k€ to complete the year

21

BACK UP

Conferences in the last 3 years

Mar Sobron The Tracker-Muon Hardware Alignment System of CMS ICATTP 2009. Como

Pablo Martinez The CMS Muon System Alignment: First results from commissioning runs Bienal Física 2009. Ciudad Real

Pablo Martinez Muon Alignment in ATLAS and CMS First LHC data.2009 DESY

Gervasio Gomez Hardware-based alignment of the CMS muon system LHC Alignment 2009. CERN

Pablo Martinez The CMS Muon System Alignment CHEP09. Praga

Pablo Martinez Commissioning and Performance of the CMS Detector First results LHC 2010. Blois

Luca Scodellaro Performance of the CMS muon spectrometer, Muon Reconstruction and Identification Performance Physics at the LHC 2010. DESY

Muon Alignment:

Physics:F. Matorras CMS Computing Model ICCMSE 2009. RodasPatricia Lobelle Projected exclusion limits on the SM Higgs boson cross sections obtained by combining the H ¿ WW(*) and ZZ(*) decay channels.Bienal Física 2009. Ciudad RealJ. Duarte Constraining parton distribution functions using the W charge asymmetry at the LHC Bienal Física 2009. Ciudad RealC. Jorda Analysis strategy for the WW cross section measurement with CMS detector at the LHC Bienal Física 2009. Ciudad RealC. Jorda Higgs search in H->WW decay channels with the CMS detector EPSHEP09. CracowR. Gonzalez EW symmetry breaking at LHC PASCOS 2009. DESYP. Lobelle Search for the SM Higgs Boson at LHC DIS09. MadridA. Calderon Top Physics with CMS CPAN 2010. ValenciaLuca Scodellaro Top quark Physics at CMS First results from LHC 2010. ProtvinoLuca Scodellaro BSM in CMS LHC days 2010. SplitT. Rodrigo CMS Overview New perspectives 2010. NovosibirskA. Calderon Measurement of the charge ratio of atmospheric muons with the CMS detector ECRS 2010. TurkuP. Lobelle Top quark physics at the LHC -expected measurements w/ 200 pb-1 & 1 fb-1 22nd recontres Blois 2010R. Gonzalez Higgs prospects at LHC BEACH 2010. PerugiaA. Calderon Top results from CMS PLHC2011. UmbriaC. Jorda Di-Boson production at CMS 23rd recontres Blois 2011J. Piedra Vector Boson productions and Higgs searches in CMS Jet reconstruction 2011. PisaGervasio Gomez CMS Results XXIX Workshop on recent advances.2011 PatrasL.Lloret Search Strategy for a Standard Model Higgs Bosson Decaying to Two W Bosons in the Fully Leptonic Final State Bienal Física 2009. Ciudad RealI.Gonzalez Experience with GRID Tier-2 sites in the CMS experiment at the Large Hadron Collider CMMSE2009. GijonI.Gonzalez Operational Experience with CMS Tier-2 Sites CHEP09. PragaJ.Fernandez Higgs Searches at CMS and ATLAS Moriond/QCD 2009. La thuileI.Gonzalez Using widgets to monitor the LHC experiments CHEP2010. TaipeiJ.Fernandez SM Higgs: prospects end 2011 and before HH2010. OrsayJ.Cuevas The LHC potential for the SM Higgs boson search with 1 fb-1 Blois 2010L.Lloret Higgs searches with CMS PHENO11. Madison

CMS internal notes

May19th, 2011 FPA program 2011 50

May19th, 2011 FPA program 2011 51

CDF internal notes

CMS: Physics program start-up

2 opposite sign muons +jets+large MET

m() = 26 GeV/c2

incompatible with Z

MET= 57 GeV/c

pT=45 GeV/c

pT = 56 GeV/c

+ pT = 27 GeV/c

- pT = 57 GeV/c

Observation of top quark candidates

0.2pb-1

Observation of top quark candidates

2ndary- vertex6 ellipse

y [c

m]

z [cm] x [cm]

y [c

m]

Event passes all cuts of full selection: 2 jets, both w/ good/clear b-tagsand secondary vertices and additional cross checks: muons and jets coming from the same interaction vertex.

Top quark topologies use most physics objects• Leptons

– Excellent momentum measurement for e, – Isolation (to reject QCD), conversion rejection for e– Tau Leptons: good efficiency & low fake rate

• Jets and Missing ET– Multi-jet topologies (up to 6 in hadronic channel)– Precise event kinematics– MET resolution for QCD rejection and top mass

reconstruction• Reconstruction of primary and secondary vertices (b-tagging)

– Efficient identification of the 2 b-jets / Pile-up• Systematic uncertainties usually dominated by

– Jet /MET energy scale, b-tagging efficiency, W+jets Q2-scale– Most relevant gain of Particle Flow (PF) for analysis: jets &

MET 55

Plots for approval

Plots for approval (2)

Plots for approval

Summary of ttbar cross section measurementsTable for approval

M&O (B): subdetector operation & maintenance(CERN-RBB-2010-008)

Link Alignment*:

19 k€CHFx 3 = 48 k€

*Requested if not paid directly by FPA

Based on a request of 6000 €/year per senior physicist:

• IFCA: 2 FTE’s/year + 1 postdoc during 18 months=> 45 k€

• UO: 1 FTE/year => 18 k€

CDF Common Fund