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Evgueni Goudzovski(University of Birmingham)
A personal selection of new results:
1) Higgs & new physics searches at hadron colliders;2) Flavour physics at the LHC;3) Lepton flavour violation: MEG;4) Neutrino oscillation measurements.
Birmingham PP seminar5 October 2011
Highlights of theHighlights of theEPS 2011 conferenceEPS 2011 conference
(Grenoble, July 2011)(Grenoble, July 2011)
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Higgs & new physics searchesat hadron colliders
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Tevatron prospects:• large improvements in sensitivity;• Next spring: results basedon the full 10fb–1 sample.
~8fb–1
Tevatron Higgs limitsTevatron Higgs limits
Presented by Eric James
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SM Higgs at LHCSM Higgs at LHCSensitivities (ATLAS)
SM Higgs cross-sections
Low mass: Hbb, , .Intermediate mass: HWWll.High mass: HZZll, llqq, llll.
BR
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Examples (ATLAS)Examples (ATLAS)H
HZZ4l
Presented by Dave Charlton
6ATLAS+CMS combination is complex, and was not presented at EPS 2011.
~(155-206; 270-450) GeV excluded. Limits improved/revised at LP11!
? ?
Presented by William Murray
The LHC limits: July 2011The LHC limits: July 2011
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SM & searhes at the LHCSM & searhes at the LHC
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LHCb: B0K*+–
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LHCb data takingLHCb data taking
(by end of July)
Luminosity levelling delivers constant operation at L~3x1032/cm2/s
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BB00KK**++–– (FCNC: b (FCNC: bs)s)BR~10–6
B-factories hinted apositive AFB for all q2…
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LHCb analysisLHCb analysis
J/
(2S)
K*K
World’slargest sample
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Forward-backward Forward-backward asymmetryasymmetry
A textbook confirmationof the SM prediction…
…presented by M.Patel(Imperial College)
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LHC: Bs+–
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The “golden mode”: The “golden mode”: BBss++––
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BBss++––
Presented by Guy Wilkinson
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BBss++––
Presented by Guy Wilkinson
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LHCb analysisLHCb analysis300 pb–1
Boosted decision tree analysis (similar to PLB 699(2011)330)
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LHCb preliminary limitLHCb preliminary limit300 pb–1
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CMS analysisCMS analysis1.14 fb–1
(both ||<1.4) (at least one ||>1.4)
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BR(BBR(Bss++––) combination) combination
95%CL
90%CL
27 July 2011
Presented by Guy Wilkinson
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Lepton Flavour Violation:e @ MEG exp’t
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The MEG experimentThe MEG experimentPresented by Toshinori Mori-san
• World’s most intensivemuon beam @ PSI;
• Thin stoppingtarget (polyethylene);
• Spectrometer+ LXe calirimeter.
Signal: e(back-to-back).
Background: e(the Michel decay).
Accidental BKG is dominant.
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2010 data analysis2010 data analysisPresented by Toshinori Mori-san
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Likelihood profiles
~10–13 sensitivityexpected with the2011+12 data set
The hint for new physicsseen in 2009 datahas disappeared
Presented by Toshinori Mori-san
Updated MEG resultsUpdated MEG results
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Neutrino physics
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First T2K appearance First T2K appearance resultsresults
Electron neutrino appearance in beam:P(e) = sin2(213)sin223sin2(m2
atmL/4E)
(with 2% of the T2K expected flux)
First indicationof non-zero 13
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ee appearance @ MINOS appearance @ MINOSElectron neutrino appearance in beam:P(e) = sin2(213)sin223sin2(m2
atmL/4E)
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Three-flavour global Three-flavour global analysisanalysis
3 indication of non-zero 13; T2K to continue data acquisition soon; New generation of reactor experiments with near&far detectors starting (Daya Bay, Double Chooz, RENO)
Presented by S.Schoenert
Double Choozexpected sensitivity
Reactor e (~1MeV)disappearance
experiment
Near-detectoroperational
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Disappearance: T2K & Disappearance: T2K & MINOSMINOS
Muon neutrino disappearance:P() = 1 – sin2(213)sin2(m2
32L/4E)
MINOS@Fermilab (8x1020 POT)
MINOS:
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Thank you