cdf: prospettive e upgrades
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CDF: Prospettive e upgrades. INFN - Riunione della Commissione 1 Roma 13 Maggio 2003 Franco Bedeschi INFN-Pisa. Stato Tevatron e CDF Stato di avanzamento dell’analisi Calcolo (v. presentazione S. Belforte con richiesta sblocco SJ) Run IIB: Situazione generale - PowerPoint PPT PresentationTRANSCRIPT
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
CDF: Prospettive e upgrades
Stato Tevatron e CDF Stato di avanzamento dell’analisi Calcolo (v. presentazione S. Belforte con richiesta sblocco SJ) Run IIB:
Situazione generale Stato progetti a partecipazione italiana
Situazione MOF Sommario richieste finanziarie
SOMMARIO
INFN - Riunione della Commissione 1
Roma
13 Maggio 2003
Franco BedeschiINFN-Pisa
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
TeV Luminosity(old slide May 14,
2002) Peak luminosity still low
but improving Best 2x1031
Delivered/on tape 40/25 pb-1
Delivered
On tapeLuminosityIntegrated
Initial
instantaneous
2x1031
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
TeV Luminosity(current situation)
Peak luminosity still low but improving Best 4.2x1031
Delivered/on tape 230/170 pb-1
Delivered
On tape
4x1031
LuminosityIntegrated
Initial
instantaneous
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Tev luminosity 5-7 pb-1 /wk typical
Peak 8.3 pb-1
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Tev 2003 Luminosity goals
Goals for 2003 (S.Holmes: P5 report 3/26/03)
Base goals:- 200 pb-1 in FY 2003
- 10 pb-1/wk end of 2003 5.4x1031 typical
Stretch goals:- 320 pb-1 in FY 2003
- 15 pb-1/wk end of 2003 7.6x1031 typical (~max
achievable without Recycler)
Currently within these limits
~150 pb-1
As of 5/6/03
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Tev goals beyond 2003
Extended goals are still consistent with plan shown at the October ’02 DOE Accelerator Review 6 month shutdown in 05 or 06 can decrease total
by 1 or 2 fb-1
Stretch goals max luminosity: 3x1032
Year Base goals luminosity/yr (fb-1)
Stretch goals
Luminosity/yr (fb-1)
FY02 0.08 0.08
FY03 0.2 0.32
FY04 0.4 0.6
FY05 1.0 1.5
FY06 1.5 2.5
FY07 1.5 3.0
FY08 1.8 3.0
FY09 1.8 3.0
Total 8.3 14.0
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Tev goals beyond 2003
Fermilab long range plan (M.Witherell P5 presentation – March 26, 2003)
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Status of CDF Detector:
All systems commissioned and taking good quality data- ISL: more cooling lines opened during the January
shutdown! Only 1 cooling line (4% of total) remains plugged
- Silicon (hardware/trigger) in general much more stable and reliable
- ~90 % of all silicon systems currently taking data
- L1 accept rate limitation removed
- Some unrecoverable damage is piling up
• % powered
• % good
• % bad
• % error rate
January 03
shutdown
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Status of CDFEarly June 2002 March 2003
Silicon trigger coverage
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Status of CDF
SVX electronics very delicate Still learning how to
protect it from further damage- Understand now
much better sources of damage
Some concern about possible continuous degradation over long periods of time
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Status of CDF DAQ and trigger:
~140 triggers - (e, , , , , jets, displaced track, many multi-object paths)
- SVT very successful and improving Typical running conditions:
- Dynamic prescale output bandwidth is always saturated! More b and c phyics at lower luminosity
Date/time May 6,03 10:42
Lumin. 42.4 e30
L1 11.7 kHz
L2 251 Hz
L3 68.5 Hz
Date/time May 4,03 18:03
Lumin. 38.0 e30
L1 17.6 kHz
L2 239 Hz
L3 66 Hz
deadtime ~ 3-4 %
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
SVT maintenance and upgrade
4 fold increase in number of patterns Increase efficiency Improve timing
Increase availability of “spares” Use new technology (Standard Cell?) for new Chip Replace only Amboard (12 + spares)
New Amboards are backward compatible
New chips are more powerful and provide more flexibility
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Physics Results
Data used for winter conferences 2003 Data set collected Feb. 02 – Jan. 03 130 pb-1 delivered, 100 pb -1 on tape, ~70 pb -1 used for
analysis ~200 pb-1 on tape by summer
Will report highlights only Preference to Italian group work
Strong impact on hadronic B/Charm physics Many activities in Hi pt physics: top, EWK, tau, searches
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
B Physics J/ sample
Better L1 trigger larger samples/pb-1 than Run 1 Masses, exclusive lifetimes, signals for CP violation (J/
K0S,J/ )
Lepton + displaced track samples Lower lepton pt (>4 GeV) than Run 1 thanks to SVT Hi stat. lifetimes, signals for Bd and Bs mixing
Hadronic samples with displaced tracks Charm physics, signals and BR for Bs mixing, signals and
BR for CP violation measurements New for CDF thanks to SVT – Main focus of Italian groups
- Padova, Pisa, Roma1 (Had. B convener), Trieste
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
B Physics
Some examples of lepton samples
0bJ/
385 22 Ds
(muon only)
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Charm Physics
Flavor tag with soft from D* decay
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
B Physics Understand signals for Bs mixing Measure relative BR
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
B Physics B+:
Prospect for measurement of relative BR and ACP
J/ from tracks only
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
B Physics B0 h+h
Measure relative BR and direct ACP
Prospects for measurement of
301 sig. events
CDF II simulation —sum
BdKBsKK
Bd
BsK
BdK = 0.58 ±0.06 (stat)
Bd= 0.13 ±0.05 (stat)
BsKK = 0.26 ±0.06 (stat)
BsK= 0.03 ±0.04 (stat)
ACP) = 0.06 ± 0.15 (stat)
Not blessed
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
High Pt physics (1) Re-discover top!
Measure x-section in various channels Low precision mass measurement Italian contributions to study of backgrounds, b-
tagging, jet energy corrections, fully hadronic final state (Bologna, Padova (top convener), Pisa, Roma1)
W and Z’s: Measure x-sections in various channels
- Including channels with tau’s! Forward-backward asymmetries Italian contribution on extension of electron ID to plug
calorimeter region and on tau ID (Pisa)
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Top physics
W events with b tagged jetsfrom 57.5 pb-1 of data Data = 15 events
Background =3.8 + 0.5
Use excess events in > 3 jets binsto measure the top cross section
(t t) =5.3 + 1.9stat + 0.8sys + 0.8lum
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
EWK Physics Tau’s are much improved in Run 2
Use W -> to test universality and optimize selection
Charged particle multiplicity from W -> candidates
Compare (W)*BR(W->)to (W)*BR(W->e)
g / ge = 0.99 + 0.04
Zt t in progress
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
High Pt Physics (2)
Extensive study of jet properties and x-sections in process Italian contributions on understanding of energy scales and
jet resolution (Frascati, Pisa)
Searches for Physics Beyond the SM in progress First results often improve run 1 results due to high CM
energy Italian contributions on Higgs search to multi-jets, LFV
Higgs decays involving taus (Bologna, Pisa, Padova)
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Searches with jets
Mjj
Mjj
More events at high masses than run 1
X10
These limits already improve run 1 results
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
CDF for Run IIB
The current detector was designed/built based on Run IIa specifications: Maximum instantaneous
luminosity of 2×1032cm-2s-1. Integrated luminosity of 2 fb-1
~ few years of operation
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
The Run IIb Operating conditions for Run IIb:
Maximum instantaneous luminosity of 3 – 4 × 1032cm-2s-1.
- No change in bunch spacing more interactions/crossing
Total luminosity of up to 15 fb-1 integrated over many years of running
The Tevatron experiments have been preparing an upgrade to deal with these problems since 2001 After many reviews (all favorable!) in 2001 and 2002 received from DOE
CD-3a approval for equipment spending in FY 03
- Sensor and SVX4 orders have gone out in March 03
Expect new decision from DOE on FY 04 on the time scale of late July 03 after DOE Accelerator Review
In May 02 agreed with INFN on envelope for Italian contributions Some funds and SJ on 2003 INFN budget
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB reviews
From M. Witherell P5 presentation
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Summary run IIB projects
Calorimetry upgrades New central preradiator (CPR) (*) Add timing to EM calorimeters (*)
Tracking upgrades Full replacement of all silicon systems inside ISL (*)
Trigger upgrades Improve resolution of L1 track trigger Rebuild global L2 Increase event builder throughput
(*) Activities with contributions from Italian group
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian contributions
CPR: CPR is an important device to identify
electrons and understand their backgrounds
CPR is used to improve jet energy resolution
Old CPR is a slow wire chamber that cannot sustain the higher luminosity and rate of run II
New CPR:
- Scintillator based faster
- Finer segmentation in space
- Should have planned it already for Run IIA !
- Installation requires substantial shut-down
Run I hi-pt electrons
MIPS
electrons
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
Italy R&D summary: Detailed study of tile performance
in various configurations
- Bicron, Dubna scintillator
- Kurarai, PolHiTech fibers/mirroring
- Grove shape (uniformity)
- Choose Dubna/PolHiTech
Definition of production model with US and Dubna colleagues:
- Scintillator cut and grooved in Dubna
- Assembly partly in Italy and partly US
Test tile
0
20
40
60
80
100
120
0 50 100 150 200 250 300 350 400ADC channels
N
bicron
dubnaPolHiTec Ws fiber 3loops
8.6 ADC single photon
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
CPR organization and responsibilities: Steve Kuhlman (ANL) calorimeter project
leader
- Joey Huston: CPR project leader
Nicola Turini responsible for Italian contribution
Collaboration:
- ANL, Fermilab, Michigan, Rockefeller: Design, assembly and test
- Italy: Design, assembly and test/PS
- Russia: Scintillator/grooved tiles
- Japan (Tsukuba): Multianode Phototubes
Italian groups involved:
- Pisa [Siena], Pavia, Roma1, Trieste, (Udine)
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
Financial summary: Total according to May02 plan: 202 k€
- Prototyping 20k€ (funded in 2002/03)
- Scintillator 80k€ (funding in 2003/04)
- Fibers & Connectors 45k€ (funding in 2003/04)
- PS & Cables 57k € (funding in 2003/04)
Total SJ for 2003: 100 k€- SJ adequate to cover 2003 needs
- No urgency for release now
- Will request release in September after final DOE approval
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian contributions
EM calorimeter timing: Key to improve cosmic
background rejection in +MET events- Increase efficiency at low
momentum (no need to leak into Hadron Calorimeter)
X 30 yield of Z X 2-5 GSMB SUSY processes
with N2 G final states
Run II
x30 run 1 acceptance
Run 1~ ~
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
R&D summary: 3 each transition boards and
discriminators prototypes made After some iteration found cable
with satisfactory properties Now ready for production and
installation- Cable installation is time
consuming and needs long shut-down (summer 2003!)
- Board installation can be done during short accesses
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
EM timing organization and responsibilities: Steve Kuhlman (ANL): calorimeter project leader
- Dave Tobak: EM timing project leader
Marco Cordelli responsible for Italian contribution Collaboration:
- US (Texas, Chicago, Michigan, ANL, FNAL): TDC, splitters, infrastructure
- Italy: transition boards and discriminators, cables
Italian groups involved:- LNF
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
Financial summary: Total according to May02 plan: 144 k€
- ASD 74 k€ (May02) 65 k€ (quote)
- Transition boards 25 k€ (May02) 35 k€ (quote)
- ASD TDC cables 25 k€ (May02) 25 k€ (quote)
- Prototyping 10 k€ (funded in 2002)
Total assignments for 2003: 60 k€ + 60 k€ SJ- Request release of SJ now to allow for full installation this summer
during extended shut-down
- All components provided by US groups already available
- Delaying funding to September can imply many months of delay in the installation
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian contributions
Silicon Tracker: Need replacement for radiation
(and other) damage
- Limit 4.3 fb-1 for L0
- 5.7 fb-1 for port cards
- Other inner layers fail around 7 fb-1
- 4% -chips and 8 % of z-chips already lost due to various accidents
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
R&D summary 12 working modules and 3
electrical staves made- No problems found
- Mechanical fixtures OK Chip pre-production in
progress. Back any moment Sensors being produced:
- Delivery starts June 03 and ends March 04
Test on CAEN PS prototypes satisfactory- Working on simplifying system
CDF stave electrical prototype
Fixtures made in Bologna
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
Silicon organization and responsibilities: N. Bacchetta, B. Flaugher: Project Leaders Nicola Bacchetta: responsible for Italian contribution Collaboration:
- US: Infrastructure, SVX4, hybrids, assembly, DAQ
- Japan: sensors
- Italy: management, chip, power supplies, assembly fixtures, SVT mods
Italian groups:- Padova, Bologna, Roma1, (Pisa, Trieste for new mergers)
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Run IIB: Italian Contributions
Financial summary: Total according to May02 plan: 473 k€
- Prototyping 55k€ (35k€ funded in 2002)
- Chip 130k€ (funding in 2003)
- Mechanical 38k€ (11 funded in 2003)
- PS 150k€ (funding in 2004/5)
Total assignment for 2003: 11 k€ + 21 k€ SJ mechanical + 130 k€ SJ for chip - SJ adequate to cover 2003 needs
- No urgency for release now
- Will request release in September after final DOE approval
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Status of MOF
Last IFC meeting inconclusive, but: Scrutiny group should produce appropriate documentation
by mid-June Overall Operations budget to share defined to be ~3 M$
- Implies for Italy ~ 350 – 400 k$/yr, but: Partial credit for computing contributions with penalty factors still
under discussion
New rules will apply to 2004 if agreement is found at next IFC meeting in September
Franco Bedeschi – INFN-Pisa Gruppo1 – 13 Maggio 2003
Financial summary
Richieste di sblocco immediato: 60 k€ per completamento EM timing per run 2B ~122 k€ per upgrade FARM al CNAF (vedi prossima
presentazione di Stefano Belforte)
Previsioni per Settembre: Trasferte:
- Sblocco attuale SJ + 10 MU finanziamento aggiuntivo per crescita gruppo in corso d’anno (+4 persone)
Run 2B:- Sblocco 130 k€ (chip) + 100 k€ (CPR)