CDF Status and Highlights

International Finance CommitteeOctober 28th 2006

Rob Roser & Jaco Konigsberg

CDF Status and Highlights

International Finance CommitteeOctober 28th 2006

Rob Roser & Jaco Konigsberg

• Perspective

• Detector & Operations

• Streamlining

• Physics

• Prospects

• Conclusions

Outline

Perspective

P5

• The final report of the P5 Committee: "The Particle Physics Roadmap” is out and available on the HEPAP website:– http://www.science.doe.gov/hep/hepap_reports.shtm

• A comprehensive report of great interest to the HEP community– http://www.science.doe.gov/hep/P5RoadmapfinalOctober2006.pdf

• It has the Tevatron running through FY09 [as baseline]

• We will still be reviewed in Spring 2007 (April or May)– Committee will take into account:

• HEP budget situation• Luminosity• Staffing• Overall physics output and Higgs progress

Last two points are on our court

P5 Road Map

• The detectors, trigger, and offline are performing very well.• The collaboration is strong and committed.• We have a rich and important physics program with ~1 fb-1

• We have a plan for “the end game” and are executing it

The CDF Experiment

* Submitted+Accepted+Published thus far

• + We have ~50+ additional papers under internal review !

Calendar Year Publications

2003 4

2004 17

2005 44

2006 38*

Total to date 103

Run 2 Publications

Nice progress

• 653 pb-1 delivered in FY06, 82% to tape

• ~5% trigger deadtime, ~5% beam conditions, ~5% problems

2.0 fb-1 delivered

1.6 fb-1 to tape

Detector Operations at-a-glance

No change

Operations

Silicon status & lifetimeSilicon Aging Like Fine (Italian, French, Spanish, Californian,

Canadian, Japanese, Korean, Taiwanese, Swiss, British, Finish, Russian, German) Wine

Silicon should operate well for the duration of Run 2

COT enjoying a breath of fresh air…

Central Outer Tracker

COT Gain vs. Time

Jan.2002 Aug.2005

Inner layer

Outer layer

• Computing will always require attention.– Dealing with continually larger data sets and faster

acquisition of data, and evolving technology

• Highlights of this years Successes include– Reduced operational load

– Maintained 6 week turn around for data this past year– Standard Ntuples now made in an automated fashion– MC production done off-site, code sped up 30-50% – Enhance GRID computing capabilities

• We are moving towards an incremental model– “once and done!”

• More in the next talks

Offline Operations

• dE/dX turned off on COT for inner layers– Help tracking efficiency– No significant loss in particle ID expected

• XFT Trigger Upgrade (fast tracking trigger)– Level 1 commissioning complete– 97% efficiency, exceeded expectations

met fake rejection specs (3-5x)– Level 2 commissioning in progress

• Matching in 3D to other objects, finer resolution

• New L2 Cal Cluster Upgrade started– Help with jets and MET trigger rates– Help open trigger for searches (Higgs)

• DAQ – building a bigger pipe!– event builder upgrade COMPLETE – achieved >900hz at

200e30 (was 200 hz)– CSL – bandwidth increased from 20→80 Mb/sec

High Luminosity Ops

• XFT originally only utilized axial layers

• Upgrade adds 3 stereo layers to 4 layer axial XFT system– better fake

rejection

– better resolution

XFT Upgrade

fakes with old

system

fakes with new system

factor 7-8 reduction!

Phi

L1 XFT fake reduction

• Run at 2.3e32 thus far– identified 5 triggers out of 150 that are

misbehaving

• We have a plan for dealing with each one– XFT upgrade– Configuring additional Level 2 CDF electronics to

build a new calorimeter cluster finder

• Don’t see any significant obstacles to developing a trigger table for 3e32 for discovery datasets

Trigger @ High Luminosity

Don’t see any significant obstacles to developing a trigger table for 3e32 for discovery datasets

Streamlining

• Capturing Knowledge

• Getting to high quality data faster

• Freeing up resources for other tasks

Streamlining Strategy

• Detector Operations– Reducing shift crew by one person

• Reassigning tasks within crew• Increased automation• Improved training

– Remote Control Room in Italy• Replace one crew member on “local” owl shift

• Offline– Automating detector calibrations– Single point submission for MC– Extensive automation of production farms

• Physics– Automating various particle ID and trigger efficiencies– Automating MC and data validation– Automating b-tag efficiency and fake rates– Automating Jet Energy Scale

Streamlining Tactics

Physics Highlights

Broad and deep Physics Program

LQ

8 orders of magnitude

Higgs ED?

PR

OD

UC

TIO

N C

RO

SS

SE

CT

ION

W’, Z’, T’

• CDF presented ~30 new 1 fb-1 results– QCD, B, EWK, Top and Exotics

• Conference summary talk covered our top mass, B_s mixing, and Higgs results

•Bs mixing: semi-lept•Bs mixing: hadr•Bc->J/Psi pi•Lb lifetime•Chic x-sections•Orb. exc. B_s•etab->J/PsiJ/Psi

•incl. Jet kt•incl. Jet cone•Kt distributions of particles in jets

• mtop l+jets• mtop dilepton• mtop hadronic• top x-sec hadronic• W helicity

• Z Pt• ZZ

• Higgs combination• WH->lvbb• ZH->llbb• ZH->vvbb

• diphoton• HT emu• Triphoton • diphoton+met• l+gamma+X• ttbar+gamma• monojet

ICHEP @ Moscow

http://www-cdf.fnal.gov/physics/physics.html

• B_s Mixing– 3 Sigma Evidence (4/11/06)

• http://www.fnal.gov/pub/presspass/press_releases/CDF_04-11-06.html

– Observation (9/25/06)• http://www.fnal.gov/pub/presspass/press_releases/CDF_meson.html

• Discovery of B baryon Σb

– http://www.fnal.gov/pub/presspass/press_releases/sigma-b-baryon.html

• World’s single best top mass measurement

• Observation of WZ production

• New Higgs Limits

Recent Highlights

• Evidence:– 0.2% probability (> 3) random fluctuation would look

like a signal ms = 17.31 +0.33

-0.18 ± 0.07 ps-1

– |Vtd / Vts| = 0.208 +0.001-0.002 (expt.) +0.008

-0.006 (theo.)

PRL 97, 062003 (2006)hep-ex/0606027

Lab Press Release on April 11:Fermilab CDF scientists present a precision measurement of a subtle dance between matter and antimatter.

Bs Oscillations: CDF 1 fb-1 April 2006

•Observation:– 8 x 10-8 probability (> 5) random fluctuation would look

like a signal– Effective statistics a factor of 2.5: Evidence became

Observation.

hep-ex/0609040

Lab Press Release on September 25:IT MIGHT BE… IT COULD BE… IT IS!!!Fermilab's CDF scientists make it official: They have discovered the quick-change behavior of the B-sub-s meson, which switches between matter and antimatter 3 trillion times a second.

Bs Oscillation: CDF 1 fb-1 Sept 2006

ms = 17.77 ± 0.10 ± 0.07 ps-1

|Vtd / Vts| = 0.2060 ± 0.0007 (expt.) ± 0.0081 (theo.)

Discovery of B baryons Σb

• b only established b baryon

• Enough statistics at Tevatron to probe other heavy baryons

• Looked for:

With ~1.1 fb-1, world’s largest sample of b: ~3000

Press

Oct-23rd FNAL Press Release:

“Experimenters at Fermilab discover exotic relatives of protons and neutrons”

WZ discovery

• It was time to get more serious…

∫L dt = 0.8 fb-1 : Observe 2 events with expected background of 0.9 0.2 and expected signal of 3.7

NLO cross section: 3.7 ± 0.1 pb

∫L dt = 0.8 fb-1 : Observe 12 events with expected background of 3.6 0.2 and expected signal of 7.5 .2

CDF

D0

WZ discoveryelectrons muons

+ more triggers+ better selection+ optimize cuts

Prob(background only) < 1.5 10-7 (5.1 )

2 MET bins:Prob(background only) < 2 10-9 (5.9 )

Wine & Cheese on Monday !

_ (WZ)=5.0_ 1.6_ 1.8 (stat.+syst.) pb

WZ Candidate: e e e (PEM @ Work)

TCETCE

PEM

TCE

TCE

PEM

Top Quark Mass

Tevatron combined:

Top mass: Tevatron’s Legacy

CDF Measurements will

continue to improve

Pointing to a light SM

Higgs

Status Today: 0.3-1.0 fb-1

Already a long way from Run 1

Projected Data Sample Growth

9/30/03 9/30/04 9/30/05 9/30/06 9/30/07 9/30/08 9/30/09

30 mA/hr

25 mA/hr

20 mA/hr

15 mA/hr

Inte

gra

ted

Lu

min

osi

ty (

fb-1)

9

8

7

6

5

4

3

2

1

0

We are here today

By FY07:Double data up to FY06

By FY09:Double data up to FY07

likely

We’ve analyzed this much

More sensitivity for Higgs

• So we’ll likely get the luminosity, now what?

• NEED TO EXPLOIT EVERY BIT OF SENSITIVITY that we can find:– 5 x 10% losses ==> our dataset is reduced by x 2 !

• We need to go after as many 5-10% effects as possible– Better b-tagging overall – Forward tracking and forward b-tagging– Include all lepton types with maximal efficiency– Improve Jet E resolution, B-jet E resolution– Better use of existing triggers– Trigger upgrades– Open trigger to include maximum searchable phase space– Improve analysis techniques

ALL THESE EFFORTS ARE UNDER WAY…

Ex: Forward Tracking

!

Not yet in Higgs analyses

Ex: Better b-tagging (aka über-tagger)

Mis

tag

rat

e

Tagging Efficiency

Standard secondary vertex b-tagging

Blessed ~ 1 month ago - not yet in Higgs analyses

!

Ex: Forward B-tagging

Not yet in Higgs analyses

Ex: BMU muons

!

Not yet in Higgs analyses

Ex: Improving Jet E resolution

NN: Not yet in Higgs analyses

Streamlining High-Pt tools

New ID and Physics Perfomance Coordinator that will provide a common software framework and executable - Simona Rolli

• it will automatically calculate particle ID, trigger efficiencies, scale factors, JES etc. for a given run range

• it will incorporate all the relevant pieces of code (already existing or being developed) • it will output lookup tables/ web pages/ scale factors /documentation on the values of different parameters for different run ranges. • It will be a natural monitor of offline detector performances (W/Z plots, rates etc …)

First implementation expected for March 2007 Winter Conferences

Muon

Jets

B-jets

……

Production ntuples

Electrons

Input to analyses

Improvements from the TriggerCRITICAL to open up the trigger maximally

• Control rates at high lum and open up new paths– XFT stereo upgrade

• L1 achieved x7-8 fake rejection with 97% efficiency !– L2 Cal Cluster Upgrade

• Project approved and under way !

• Optimize use of existing triggers

used

Existnot used

L2 Calorimeter Cluster Upgrade Project

Vadim Rusuwith

Laura Sartori & Gene Flanagan

In RED are placeswhere people are

Needed NOW

NEW: Higgs Trigger Task Force (HTTF)

• Forming task force to:

– Propose a comprehensive trigger strategy to optimize our sensitivity for the standard model Higgs boson and related searches

– Evaluate techniques to further improve our acceptance for Higgs signatures, as well as devising techniques to maintain high acceptance at Tevatron luminosities which may exceed 3x1032 cm-2 s-1. The Task Force should bring together experts in the detector, trigger, data acquisition system and Higgs search analyses to provide an integrated strategy to maximize our sensitivity

• Beate Heinemann and Kevin Pitts will lead the HTTF

The Road to the Higgs

New Higgs Group

• Such an effort will help pull CDF together – both in spirit and operationally

• Will energize the collaboration

• Many young and talented people have expressed interest in staying to do exactly this

• Many institutions have expressed interest in working on such a broad Higgs effort and are “ready at the gate”

• Maybe our smart and hard work and Nature’s kindness will allow us to discover the elusive Higgs !

•CDF is firing on all cylinders•Detectors and Computing are performing well

•Our physics menu is varied and healthy•We have a plan for the “end-game” and we are executing it.

•We are publishing our physics in a timely fashion and have had important measurements and discoveries this year.

•For ex: Single-top and W-mass soon•We expect many more before over the next few years as we near the Higgs Horizon…

Summary

It is harvest time for us !