1 Evgueni Goudzovski (University of Birmingham) A personal selection of new results: 1)Higgs &...

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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