CDF: Prospettive e upgrades
SOMMARIO
INFN - Riunione della
Commissione 1
Roma
13 Maggio 2003
Franco Bedeschi
INFN-Pisa
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

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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
Franco Bedeschi – INFN-Pisa
Gruppo1 – 13 Maggio 2003
TeV Luminosity
(old slide May 14, 2002)

Peak luminosity still low
but improving
2x1031
Best 2x1031

Delivered/on tape
40/25 pb-1
Delivered
Initial
instantaneous
On tape
Integrated
Luminosity
Franco Bedeschi – INFN-Pisa
Gruppo1 – 13 Maggio 2003
TeV Luminosity
(current situation)

Peak luminosity still low
but improving
Best 4.2x1031

4x1031
Delivered/on tape
230/170 pb-1
Initial
instantaneous
Delivered
On tape
Integrated
Luminosity
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:
-
~150 pb-1
As of 5/6/03
320 pb-1 in FY 2003
15 pb-1/wk end of 2003

7.6x1031 typical (~max
achievable without
Recycler)
 Currently within these
limits
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 Stretch goals
luminosity/yr Luminosity/yr
(fb-1)
(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 CDF
March 2003
Early June 2002
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, m, t, n, g, 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 4,03
18:03
Date/time May 6,03
10:42
Lumin.
38.0 e30
Lumin.
42.4 e30
L1
17.6 kHz
L1
11.7 kHz
L2
239 Hz
L2
251 Hz
L3
66 Hz
L3
68.5 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
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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/y  mm sample
Better L1 trigger  larger samples/pb-1 than Run 1
Masses, exclusive lifetimes, signals for CP violation (J/y
K0S,J/y f)

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
L0bgJ/yL
385  22 Ds
(muon only)
Franco Bedeschi – INFN-Pisa
Gruppo1 – 13 Maggio 2003
Charm Physics
Flavor tag with soft
p 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+  f K+:
Prospect for measurement of relative BR and ACP
J/y from
tracks only
Franco Bedeschi – INFN-Pisa
Gruppo1 – 13 Maggio 2003
B Physics

B0  h+h-
CDF II
simulation
Measure relative BR and direct ACP
Prospects for measurement of g
301 sig. events
—sum
BdKp
BsKK
Bdp p
BsK p
BdKp = 0.58 ±0.06 (stat)
Bdpp = 0.13 ±0.05 (stat)
BsKK = 0.26 ±0.06 (stat)
BsKp = 0.03 ±0.04 (stat)
s(ACP) = 0.06 ± 0.15 (stat)
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, btagging, jet energy corrections, fully hadronic final
state (Bologna, Padova (top convener), Pisa,
Roma1)
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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
Use excess events in > 3 jets bins
to measure the top cross section
W events with b tagged jets
from 57.5 pb-1 of data
Data = 15 events
Background =3.8 + 0.5
s (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 -> t n to test universality
and optimize selection
Charged particle multiplicity
from W -> t n candidates
Compare s(W)*BR(W->t n)
to
s(W)*BR(W->e n)
g t / ge
=
Zt t in
progress
0.99 + 0.04
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)
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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
More events at
high masses
than run 1
X10 s
Mjj
These limits already
improve run 1 results
Mjj
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 (*)

(*) Activities with contributions
from Italian group
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
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 h-f space
Should have planned it already for Run IIA !
Installation requires substantial shut-down
Run I hi-pt electrons
p
electrons
MIPS
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
8.6 ADC single photon PolHiTec Ws
dubna
fiber
3loops
100
80
Bicron, Dubna scintillator
Kurarai, PolHiTech
fibers/mirroring
Grove shape (uniformity)
Choose Dubna/PolHiTech
 Definition of production model
with US and Dubna colleagues:
-
N
120
Scintillator cut and grooved in
Dubna
Assembly partly in Italy and partly
US
60
40
20
0
0
50
100
150
200
250
300
Test tile
Franco Bedeschi – INFN-Pisa
Gruppo1 – 13 Maggio 2003
350 channels
ADC
400
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
- Scintillator
- Fibers & Connectors
- PS & Cables
20k€
80k€
45k€
57k €
(funded in 2002/03)
(funding in 2003/04)
(funding in 2003/04)
(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
g+MET events
- Increase efficiency at low g
momentum (no need to leak
into Hadron Calorimeter)


Run II
x30 run 1 acceptance
X 30 yield of Zg
X 2-5 GSMB SUSY processes
~
~
with N2g G final states
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 shutdown (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
- Transition boards
- ASD  TDC cables
- Prototyping
74 k€ (May02) 65 k€ (quote)
25 k€ (May02) 35 k€ (quote)
25 k€ (May02) 25 k€ (quote)
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% f-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:
-
CDF stave
electrical
prototype
Delivery starts June 03 and
ends March 04
Fixtures
made in
Bologna
 Test on CAEN PS prototypes
satisfactory
-
Working on simplifying system
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
- Chip
- Mechanical
- PS
55k€
130k€
38k€
150k€
(35k€ funded in 2002)
(funding in 2003)
(11 funded in 2003)
(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)
Franco Bedeschi – INFN-Pisa
Gruppo1 – 13 Maggio 2003