A major new European particle physics project Fergus Wilson RALSTFC On behalf of the SuperB Project Beauty 2011 April 8 th 2011 Outline Unique Selling Points USPs Snapshot of SuperB ID: 416113
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Slide1
Status of the SuperB Project
A major new European particle physics project
Fergus Wilson, RAL/STFCOn behalf of the SuperB ProjectBeauty 2011, April 8th 2011Slide2
Outline
Unique Selling Points (USPs)Snapshot of SuperB Physics
Project SiteAccelerator Design OverviewDetector Design OverviewProject Funding (€€€€€)Preliminary ScheduleConclusion and Outlook8th April 2011Fergus Wilson, STFC/RAL2Slide3
Unique Selling Points (USPs)
New European Accelerator Facility to be sited in Italy, ready by 2016At Υ(4S), 6.7
GeV positrons on 4.18 GeV electrons, 1.3 km circumferenceHigh Luminosity (100 x current records)≥1036 cm-2 s-1 15 ab-1/year rising to 40 ab-1/year in later years1 ab-1 => 1 billion B-meson pairs and 1 billion tau pairs75 ab-1 by 2022Polarization60%-85% polarization of electron beamImproves physics reach by factor of 2 in some regions (e.g. LFV)ψ(3770) to ϒ(5S) and beyondCan scan a large energy range.
Switching from low-energy to high-energy running very quick (no more than a few weeks if magnets need to be swopped).Charm Threshold Running2 months running equivalent to 100 x
CLEO-c dataset.Light Source30 x brighter than ESRF or Diamond Light Source.ComputingOn the scale of a non-upgraded LHC experiment.
8th April 2011
Fergus Wilson, STFC/RAL
3Slide4
SuperB Physics Goals – Executive Summary
Physics capabilities published in arXiv:1008.1541.Identify the flavour structure of New Physics
.Different New Physics models predict a different hierarchy of results => multiple measurements needed.Sensitive to New Physics through flavour properties; CP Violation asymmetries in B and D decays; and rare decays.Probe New Physics scales up to 10-100 TeV through indirect measurements.Tests both the quark and lepton sectors.Golden Channels (good SM prediction + good experimental resolution) e.g. inclusive b→sγ, B→K
υυ, B→τυ
, τ→μυυInterplay with
Lattice QCD predictions.8th April 2011
Fergus Wilson, STFC/RAL
4Slide5
Physics - What will the CKM look like in 2022?
8th April 2011Fergus Wilson, STFC/RAL
5Slide6
Physics - The Golden Matrix
Each mode is a golden signature of New Physics.
Overlap with LHC8th April 20116Fergus Wilson, STFC/RALL=Large,M=Measurable deviation from SM
tanβ
=60tan
β=5
Sensitive region
(>3
σ
)Slide7
Physics – LHC and SuperB interplay
8th April 2011
Blue = LHC: Can measure m(A) [CP odd Higgs mass] Insensitivity to tanβ [ratio of Higgs vevs] Poor sensitivity to A [coupling]Red=LHC+EW/Low-energy
(includes SuperB):
Can build on the m(A) measurement to measure
tanβ.
Current analysis of data prefers
tanβ
~10
.
7
Fergus Wilson, STFC/RALSlide8
Physics – Charged Higgs (2HDM and MSSM)
8th April 2011
Fergus Wilson, STFC/RAL8SuperB excludesSuperB excludesB-Factories excludeB-Factories excludeMSSM2HDM-II
B
→s
γ
/ LEP excludes
B
→s
γ
/ LEP excludes
ATLAS 30fb
-1
Higgs-mediated Minimal Flavour Violation
Multi-
TeV
search capability for large
tanβ
.
Includes SM uncertainty ~20% from
V
ub
and
f
B
.
B
0
→l
+
l
-
and
B
0
→l
-
τ
+
also sensitive to non-SM HiggsSlide9
Physics - Lepton Flavour Violation
Model
BF(τ→μγ)mSUGRA+seesaw10-7SUSY+SO(10)10-8SM+seesaw, Z’10-9SUSY+Higgs10-10
SM + υ mixing
10-40
8th April 2011
Fergus Wilson, STFC/RAL
9
Many models predict LFV at the level that can be detected at SuperB
LFV also sensitive to other observable such as μ->
e
γ
(MEG),
θ
13
(T2K) and B
s
mixing phase (LHCb)
Polarization doubles sensitivity (not included in numbers below)
Example: SU(5) SUSY GUT
Theory Predictions:
SuperB:
Over 50
τ
decays can be measured (not to mention spectral functions, second class currents etc...)Slide10
Physics - Charm and Charm CPV
CPV in SM very small => CPV indicates New PhysicsMeasure strong phases8th April 2011
Fergus Wilson, STFC/RAL10xDyD
Now
SuperB
SuperB+BESSuperB+
BES
+φ
(3770)
x (x 10
3
)
±3
±0.7
±0.4
±0.2
y (x 10
3
)
±2
±0.2
±0.2
±0.1
δ
k
π
±10
o
±3
o
±2
o
±1
o
δ
k
ππ
±20
o
±5
o
±3
o
±1
oSlide11
Benefits of Polarized Electron Beam
8th April 2011Fergus Wilson, STFC/RAL
111) LFV:Doubles Precision2) τ EDM, τ g-2:Measurement could prove or disprove discrepancy in Δαμ due to New Physics.EDM sensitivity ~ 2 x 10-19
e cmΔατ
(SM) ~ 10-6
Δα
τ
(SUSY) <~ 10
-5
Δ
α
τ
(SuperB) precision~ 10
-6
3) Electroweak:
Investigate LEP A
FB
v. SLD A
LR
discrepancy.
Investigate
NuTev
discrepancy.
Constrain Higgs mass
Sin
2
θ
w
resolution ±0.00018
SuperB
NuTev
XSlide12
San Vito
dei
Normanni, BrindisiTor VergataNot up to dateSite Decision8th April 2011Fergus Wilson, STFC/RAL
12
Frascati
A number of options – decision by May 2011Slide13
Machine Parameters are stable
8th April 2011
Fergus Wilson, STFC/RAL13Tau/charm threshold runningFlexibility built inModerate power < 20MWNo single critical element
Piwinski angle and crab-waist crossing test at
DaΦne
arXiv:1009.6178Slide14
Detector Design [arXiv:1007.4241]
8th April 2011Fergus Wilson, STFC/RAL
14Double Vertex resolution
Backward EMC
Logging rate:
1.9
Gbytes
/sec
Optimized IFR (
muons
)
TOF Forward PID
Cluster counting in drift chamber (improves
dE
/
dx
)
Reuses much of BaBar e.g.
CsI
crystals
Improved
hermiticity
SuperB baseline
SuperB with optionsSlide15
SuperB – Funding and Developments
SuperB approved through primary law by Italian parliament, December 14th/15
th 2010.Parliament also approved INFN “Piano Triennale” 2010-2012 funding profile which includes SuperB.SuperB is a “Progetti Bandiera” national flagship project. 8% of national research budget allocated to flagship projects. 19M€ in 2010, 50M€ per year thereafter until EOY 2015. SuperB is the only project receiving multi-year funding so far.~120M$ in-kind contribution from US through use of PEP-II machine components and BaBar detector.50M€ allocated for Tier 2 Grid computing centres in Southern Italy.~100M€ via Italian Institute of Technology (IIT) for beam-lines.Only ~25M€ needed from international collaborators for detectorConclusion: solid funding in an uncertain financial world.8th April 2011
Fergus Wilson, STFC/RAL
15Slide16
Conclusion and Outlook
August 2010: Physics, Accelerator, Detector reports published.SuperB has been approved by the Italian Government, December 2010, as a “Flagship” project.
A unique opportunity for Europe and International Collaboration.The necessary funding is in place.First beams in 2016. 15 ab-1/year rising to 40 ab-1/year.Site selection to be announced May 2011.Present participation in preparation by Italy, Canada, France, Germany, Poland, Russia, Spain, UK, US.Collaboration is still growing. Working towards TDR. Opportunities in detector, accelerator, computing and physics. First formal meeting Elba, May 28th 2011 with Italian Science Minister (hopefully).Spokesperson: Marcello.Giorgi@pi.infn.it8th April 2011Fergus Wilson, STFC/RAL16Slide17
INFN Triennal plan (2010-2012)
8th April 2011
Fergus Wilson, STFC/RAL17ConstructionOperationSlide18
Preliminary Schedule
8th April 2011
Fergus Wilson, STFC/RAL18