cdf

Assisi, Riunione CSN1: Settembre 2004 F. Bedeschi, INFN-Pisa

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CDF

Stato del TevatronStato del rivelatoreUpgrades in corso

SVTSVT talk AnnoviCPR

ComputingComputing talk BelforteOutput di fisicaRichieste finanziarie

Situazione ME 2004 Finanziamenti 2005

OUTLINE Riunione CSN1

Assisi: 22 Sett. 2004

Franco BedeschiINFN-Pisa


2/48

Extended Tev goals

Luminosity plan 2002 Goals 2002/03 accomplished Goals 2004 ~ 310 - 380 pb-1

Result attained! Tevatron is performing very well Key is good recycler performance

Year Base plan luminosity/yr (fb-1)

Design plan

Luminosity/yr (fb-1)

FY02 0.08 0.08

FY03 0.20 0.22

FY04 0.31 0.38

FY05 0.39 0.67

FY06 0.50 0.89

FY07 0.63 1.53

FY08 1.14 2.37

FY09 1.16 2.42

Total 4.41 8.56

0

1

2

3

4

5

6

7

8

9

0 1 2 3 4 5 6 7 8 9 10

End FY

fb-1

Base plan

Design plan

Base plan ~ no recycler

Lmax = 2 x 1032


3/48

Design and Base Projections

0

50

100

150

200

250

300

350

400

0 30 60 90 120 150 180 210 240 270 300 330 360

Days Since October 1

Inte

gra

ted

Lu

min

osi

ty (

pb

-1)

FY04

FY03

FY02

FY04 Design

FY04 Design with Pbar Tax

FY04 Base

FY04 Base with Pbar Tax

340 pb-1

2004

2003

2002


4/48

TeV Luminosity(current situation)

Peak luminosity Best > 1.0 x1032 !!!

Delivered 680 pb-1

Next data set for analysis ~ 350 – 450 pb-1 > 3-4 x Run 1 540 pb-1 on tape

On tape

Initial

Instantaneous Luminosity

1 x 1032

Shutdown in progress Install electron cooling

FY 2005 Continue mixed mode Proton slip stacking +25% p-bar production acceptance Commission e-cooling by end of FY05


5/48

COT problem

COT has experienced an unexpected gain loss ~ 20%/yrChamber has been operated at

strongly reduced gain to prevent further damage (Since 2/13/04)

New wire

Aged SL 2 wire


6/48

COT problem

Chamber expected to be very radiation hardExpected currents on SL1 is 4.5 mA/wire @ L = 2x1032

From 0.15 Coul/cm (2 fb-1) to 0.60 Coul/cm (8 fb-1)

Predict < 1% gain loss at 1 Coul/cm no problem …..


7/48

COT problem

Observations and diagnosis:Gain loss has z and phi dependenceReversing gas flow reverses pattern of damageDamage caused by insufficient gas flow?

Actions taken: Implement gas re-circulation system (80% re-circulated)

Old flow 20 SCF/hr 40 200

Can push as high as 1000 SCF/hr if needed

Back up plans: Increase operating temperature 72 82 FChange gas Ar-CO2 (or even CF4 ?)


8/48

COT solution

Increased flow did not help muchAdded 200 120 ppm O2 on June 16

Lowered to 80 ppm after 2 weeks

Results are stunning! The COT is completely back in operation.


9/48

COT solution

Start increased flow

Start adding oxigen


10/48

COT solution

Back to January 2002 situation

Wires reanalyzed:Chemical analysisElectron microscopyObserve reverse ageing

Gain situation:Plateau after 10 daysUniform in phi and Z


11/48

Trigger upgrades

Global LV2 upgrade installed by end of 2004EVB tests show 1000 Hz LV2 BW reachable

Orders for parts have been made

Rescoped XFT and SVT upgrades presented at director review on July 20-21Reviews were impressed and recommended approval


12/48

Re-scoped SVT Upgrade

New AM++ hardware with narrower roads (32K to 512K) reduces number of tracks to fit Bought by INFN

New AMSequencer/Road Warrior (12 Pulsars) Interface for AM++

New Hit Buffer (12 Pulsars) Faster Track Fitters reduce

processing time on found roads (12 Pulsars)

Upgrade SVT Data Flow

Note 12 Pulsars will be “recycled” from current use as “Road Warrior” boards


13/48

CPR

Module production complete52/48 CPR modules done

Much help from Italian techs

39/48 crack det. modules

HV:All modules at FNALCables ready – partly

shippedS. Lami setting up control

software


14/48

CPR

Installation in progress:10/12 modules installed

in first archExpect completion by

end of shutdown (Mid November)

Italian participation to this phase is critically dependent on travel budget situation! OLD and UGLY

NEW

EMPTY, EM Calorimeter face


15/48

CPR

Performance tested with cosmics and final DAQ chainObserve 12 pe/MIP – Excellent!

Spec was 5 pe/MIP


16/48

Physics Highlights

List main results Based on 200 ± 50 pb-1 data sample (until Feb. 13, 2004)

Reach for Bs mixingStatus of publications


17/48

Electroweak results

Run II:Major expectations

for Mtop and MW

Close or improving Run I results


18/48

W Mass

MW(e) = 80.424 ± 0.044 (stat.) ± 0.090 (syst.) GeV

MW() = 80.419 ± 0.051 (stat.) ± 0.069 (syst.) GeV

Run II: MW = 80.421 ± 0.073 GeV (to be blessed)

Run I : MW = 80.433 ± 0.079 GeV

electron 200 pb-1 muon 200 pb-1


19/48

W mass systematics

Work in progress on recoil modelWork in progress on e-energy scale (passive material)Now combined error is 76 MeV (stat+syst)

Expect 50 MeV combined (CDF only) by next yearGoal is ~ 20 - 30 MeV/experiment by end of run II


20/48

Forward W’s

=2.874±0.034(stat)±0.167(syst)±0.172(lum) nb

Study of forward W’s improved by better tracking and simulation

180 pb-1

Spring 0464 pb-1


21/48

Top pair Cross sections

•Most x-sections updated with ~200 pb-1 in many different channels


22/48

All Hadronic Channel

Final State: 4 jets from W, 2 b-jets (data sample: multi-jets trigger)

Large statistics, but huge QCD background: S:B1:2500

Increased S:B by requiring: ET>320GeV Topological cuts (aplanarity, centrality)

Event selection efficiency 6.2%o S:B 1:24

@ least 1 b-tag jet: S:B 1:4 Measure Xs with 6 jets & 1 b-tag jet


23/48

Top Mass (l+jets) old SW

Most likely top quark masses determined in each event by Dynamical Likelihood Method. (Same as D0 best run 1 result).Energy scale systematics is still the dominant issue

Mtoprun II = 177.8+4.5

-5.0(stat.)±6.2(syst.) = 177.8+7.7-8.0GeV (DLM)

Mtoprun I = 176.1 ± 7.3 GeV/c2 (template)

Run II checks:Mtop = 179.6 +6.4

-6.3 (stat.) ± 6.8 (syst.) GeV/c2 (multivariate template)Mtop = 174.9 +7.1

-7.7 (stat.) ± 6.5 (syst.) GeV/c2 (template)


24/48

Top mass systematics and reach

Systematics still dominated by jet energy scale uncertainty Expect major reduction by next round of conferences Goal is 2 – 3 GeV/exp. by end of Run II

Run 1 Run 2

DLM


25/48

QCD

Inclusive jet cross section Jet Shape / Fragmentation (145 pb-1) jet energy frac. R > 0.3 (KT algorithm) (MidPoint algorithm)


26/48

SM Higgs, New Phenomena

95% CL limit on SM Higgsproduction cross section

(162 - 184 pb-1)

95% CL limit on doubly chargedHiggs production x-section

(240 pb-1)


27/48

B hh

Several new results based on this sample presented at ICHEPBranching fractionsCP asymmetries

Time dependent CP asymmetries will be next


28/48

Bhh

Branching ratios and CP asymmetry

Rare two body decay modes


29/48

Bs States: BS J/ +- K+K-

Heavy state and light state decay with distinct angular distributions and different lifetimes.

Decay angular distributions 1/4 heavy state

3/4 light state Lifetime - heavy ~ 2 x light

.S / S = 0.71 +0.24-0.28 ± 0.01

Lifetime difference measures“same” CKM element as m (oscillation frequency)

Exciting!! Need more data.


30/48

Bs Mixing reach

Major progress:Use more Bs final statesSemileptonic is usefulOpposite side taggers established30% c resolution improvement

Expect new relevant limits on ms next winter


31/48

Bs hadronic signals

Raw yield ~3 pb


32/48

Bs semileptonic signals


33/48

c resolution with L00

No EbE/L00: ~ 67 fs

With EbE/L00: ~ 47 fs30%

improvement


34/48

Mixing and flavor tag

Major progress on mixing: Test whole machinery on Bd

Consistent md values

Taggers characterized

Combined OST D = 1.6%Include correlations

Currently developing K tags both on same side and opposite side

SMT tag

SST tag


35/48

Bs Mixing reach

Worldlimit

Statistical contributionsONLY Baseline = NOW

Stretched = NOW+ EbE+K tag (1%)


36/48

Run II Publications


37/48

Charm and Bottom Physics

4 papers published or submitted Ds, D+ mass difference (Phys. Rev. D68, 072004, 2003) Search for D (Phys. Rev. D68, 091101, 2003) Prompt Charm cross section (Phys.Rev.Lett.91, 241804(2003) Observation of X(3872) - used 220pb-1 (PRL)

10 analyses in godparent publication review D0 relative BR and CP asymmetry (123 pb-1) - PRL 2nd draft Inclusive J/ and B cross sections (40 pb-1) - 1st draft PentaQuark search: 3/2(1862) (220 pb-1) B hadron masses including Bs and b (220 pb-1) BR of b c (65 pb-1) BR of Bs Ds / BR of B0

D- + (64 pb-1) BR of Cabbibo suppressed B+ J/ + Hadronic Moments in semileptonic B decays (180 pb-1) BR and CP Asymmetry in B+ K+ and BR in Bs (180 pb-1) Time-dependent Amplitude of Bd J/ K* and Bs J/ and a Lifetime Difference in Bs system (220 pb-

1)


38/48

Top Physics 1 paper published or submitted

Top cross section in di-lepton (197 pb-1) - PRL 12 analyses in godparent publication review

Top pair cross-sections in lepton+jetsKinematicsSecondary vertex b-tagSecondary vertex b-tag + kinematics - PRL 1st draftSoft muon b-tagtau dilepton

Search for anomalous kinematics in dilepton sample W helicity Single top BR(t Wb) / BR(t Wq) Top mass (162 pb-1)

Dynamic Likelihood (lepton+jets)Multivariate (lepton+jets)Template (lepton+jets)


39/48

Electroweak and QCD Physics

EWK: 1 paper submitted W, Z cross section in e, channel (72 pb-1) - PRL

EWK: 7 analyses in godparent publication review Forward-backward asymmetry in Z/ e+e- (72 pb-1) - PRD 2nd draft W, Z cross section e, µ channel (72 pb-1), PRD W, Z cross section e, channel (202 pb-1) WW cross section in dilepton channel (197 pb-1) - 1st draft WZ+ZZ cross section limit (197 pb-1) - 1st draft W mass (200 pb-1) W charge asymmetry (170 pb-1)

QCD: 2 analyses in godparent publication review Jet shapes/energy flow using the MidPoint Algorithm (170 pb-1) Diphoton cross section


40/48

Higgs and New Phenomena

2 papers published or submitted Bd, Bs µµ (PRL) Search for H++ ee, µµ, eµ (PRL)

9 analyses in godparent publication review e* e- 1st draft Search for Z’ ee, µµ Search for 1st and 2nd generation leptoquarks Search for leptoquarks in missing ET

WH standard model cross section limit H diboson cross section limit Diphoton + missing ET cross section Magnetic monopole search Search for sbottom from gluino decay


41/48

Richieste finanziarie

Situazione ME 2004 Composizione del gruppoProspetto richieste finanziarie

Chiarimenti FrascatiFinanziamenti 2005

SVT upgrade

MOF


42/48

Missioni Estere 2004

Situazione dei gruppi disperata:Servono TUTTI gli sblocchi!Si richiede anche un ragionevole finanziamento aggiuntivo

Sezione Sblocchi Finanz. Agg.Bo 32.0 0.0LNF 32.0 20.0Pd 57.0 0.0 Pi 150.0 30.0Pv dtz 6.0 0.0Rm 69.0 20.0Ts 28.0 0.0Ud 23.5 0.0


43/48

Group composition

Slight decrease of number of components, but FTE are almost unchanged relative to 2004

2005 2005 2004 2004 2003 2003Fisici Tecnol. Totale Totale Totale Totale Totale Totale

Sezione Numero FTE Numero FTE numero FTE numero FTE numero FTEBologna 7 6.6 1 0.5 8 7.1 9 7.2 9 7.4Trento 4 3.3 4 3.3 1 1 1 1Ferrara 0 0 4 0.8LNF 4 3.6 1 0.4 5 4 7 4.4 6 3.7Padova 12 6.8 1 1 13 7.8 15 11.3 13 9.2Pavia 1 1 0 0 1 1 1 1 1 0.7Pisa 32 27.7 12 7.3 44 35 43 33.5 33 25.4Roma1 11 9.4 1 0.4 12 9.8 13 11 13 11.1Trieste 4 2.7 0 0 4 2.7 5 3.6 5 3.7Udine 4 3.3 1 0.5 5 3.8 4 2.8 3 1.8Totale 05 79 64.4 17 10.1 96 74.50Totale 04 85 67 17 9.6 102 76.60Totale 03 73 58.5 11 5.5 84 64


44/48

Sommario preventivi

93 k€ sulle dotazioni di Ferrara per produzione chip SVT

Preventivi 2005Cfr. Metabolismo

????


45/48

Frascati?

Richiesta di Frascati sulla COTBasata sulla grave situazione che si era creata Il problema sembra risolto e quindi viene meno la

necessita’ dell’intervento Il gruppo della COT ha chiarito in un documento

formale che non ritiene necessario questo tipo d’intervento.

Ci aspettiamo che venga presentata un’altra proposta i cui costi andranno valutati al momento opportuno


46/48

Finanziamenti 2005

UpgradesResta solo SVT (dettagli nel talk di Alberto)

100 k€ a Pisa per sviluppo e costruzione schede

93 k€ a Ferrara per la produzione del chip

Consistente con piano finanziario approvato + 40 k€ per compensare minore densita’ di patterns raggiunta

CPR in fase d’installazione e commissioningNessuna richiesta a meno d’imprevisti


47/48

MOF

Next IFC meeting Oct. 18Expect situation unchanged relative to last yearSame 250 k€ as last year looks OK


48/48

Conclusioni

Tevatron alla riscossa!CDF funziona bene e produce molta fisicaGli upgrades procedono come da previsioni

Problemi gravi a completare il 2004 con le MERichieste 2005 non prentano particolari sorprese


49/48


50/48

Tev goals beyond 2003

Fermilab long range plan (M.Witherell P5 presentation – March 26, 2003)

back


51/48

CDF Data Acquisition System

Level 1 trigger pipelined and

“deadtimeless” fully synchronous designed for 132ns

operation on L1A, write data to 1 of 4

local L2 buffers Level 2 trigger

asynchronous L1 + supplemental info

Level 3 trigger full detector readout PC farm runs reconstruction output to mass storage


52/48

CDF Run II Trigger System

Level 1 trigger tracking calorimeter: jets & electrons, MET muons

Level 2 trigger L1 information (tracks, e, ) calorimeter shower max silicon information algorithms run in L2 processor

Level 3 trigger full detector readout “offline” processing

Det

ecto

r R

ead

ou

t p

ath


53/48

Summary of Run IIb specifications

Level 1 Accept rate: >25kHz (spec 50kHz) deadtimeless

Level 2 Accept rate: 750 Hz bursts to 1.1kHz L2 processing deadtime < 5% readout deadtime (on L2A) < 5%

Level 3 Accept rate: 85Hz Event builder rate: 400MB/s Output data rate: 40MB/s

Reminder: trigger & bandwidth rates estimated based upon Run IIa, significant underestimate possible (assumes linear growth in fake contribution)


54/48

DAQ/Trigger Summary These are the pieces of the

CDF Front-end, Trigger and Data Acquisition system we need to upgrade/update to carry out a high pT physics program TDC replacement XFT upgrade SVT upgrade L2 replacement Event builder/L3 upgrade

The remainder of the Run IIa CDF front-end/trigger/DAQ system will perform well throughout Run IIb

cdf

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