Measurements of 1 and 2Tagir AushevFor the Belle Collaboration(EPFL, LausanneITEP, Moscow) B KS p0 p0 B KS KS B KS p0 B D*+ D*- B a1 p, a1K, b1 p, b1 K... U(4S) BCP BCP

Tagir Aushev (EPFL, ITEP)

CKM matrix & unitary trianglerelative magnitudes

Tagir Aushev (EPFL, ITEP)

CP Violationin the Standard Model Triangle is well measured 1(b) mainly from B0J/ KS golden mode Smaller and smaller room for the vertex position, but it is still in New decay modes are examining to find a New Physics

Tagir Aushev (EPFL, ITEP)

TCPV measurement on B-factoryBs are produced in a boosted frame t is measured from vertex positionsBs are entangled flavor of B1 at time t2 is determined by B2 decay

Tagir Aushev (EPFL, ITEP)

Belle & BaBar B-factories8GeV (e-) 3.5GeV (e+)

Tagir Aushev (EPFL, ITEP)

Current luminositiesBaBar collected 510 fb-1

Tagir Aushev (EPFL, ITEP)

BD(0,+)D0After evidence for DCPV in BD-D+ recently shown by Belle all BDD decays has a special interest

B.R. and charge asym for BD+D0 were updated by Belle:

B.R. = (3.85 0.31 0.38)10-4BaBar06: (3.8 0.6 0.5)10-4

A = 0.00 0.08 0.02BaBar06: -0.13 0.14 0.02

Also an upper limit for BD0D0 :B.R.

TCPV in B0D*+D*B0D*+D* is b ccd transition and so sensitive to sin2j1 just like the Golden B0cc K0 making it an important check

Series of papers were published by Belle and BaBar

Recently the results are updated with latest statistics

Belle result is the first time presentedBelle PreliminaryN=545 +- 29Phys.Rev.D76:111102,2007

Tagir Aushev (EPFL, ITEP)

Helicity of B0D*+D*BaBar: R = 0.143 0.034 0.008Belle: R = 0.116 0.042 0.004Since it is a decay of S VV CP-eigenstate depends on angular momentum of the VV system: Separating the CP-odd fraction, R, is done via a 1D angular analysisBelle Preliminary

Tagir Aushev (EPFL, ITEP)

TCPV in B0D*+D*Belle Preliminary

Tagir Aushev (EPFL, ITEP)

Searches for a New PhysicsPenguin dominated B decays are sensitive to NP+ New Physics may introduces extra CP phase in the decay Deviation of Time-dependent CP violation parameters from the SM expectation Hint of New Physics

Tagir Aushev (EPFL, ITEP)

TCPV in B0 KS00 :bsqqNsig = 30732Belle +0.43+/-0.49+/-0.09BaBar +0.72+/-0.71+/-0.08Average+0.52+/-0.41Belle -0.17+/-0.24+/-0.06BaBar -0.23+/-0.52+/-0.13Average -0.18+/-0.22>2 s from the SMPhys.Rev.D76:071101,2007Belle PreliminaryS=-sin2j1A=-C

Tagir Aushev (EPFL, ITEP)

TCPV in B0KS 0Nsig = 459 29B.R.= (10.30.70.6)10-6Belle +0.33+/-0.35+/-0.08BaBar +0.40+/-0.23+/-0.03

Belle -0.05+/-0.14+/-0.05BaBar -0.24+/-0.15+/-0.03S=sin2j1A=-CPhys.Rev.D77:012003,2008Phys.Rev.D76:091103,2007

Tagir Aushev (EPFL, ITEP)

Measurements of 2 j2(a) was measured in pp, rp and rr systems

The same matrix elements are also involved to the B decays to axial vectors a1, b1

Some of them can be used only with much larger statistics

Tagir Aushev (EPFL, ITEP)

Measurement B a1 First time-dep CP asymmetry in B a1+Belle Preliminary

Tagir Aushev (EPFL, ITEP)

Br0r0Latest result from Belle:

Tagir Aushev (EPFL, ITEP)

B decays to light mesonsNo charge asyms foundPRL 99:261801, 2007PRL 100:051803, 2008PRL 99:241803, 2007

Tagir Aushev (EPFL, ITEP)

CP Violating Decays of the(4S) CP violation !!

Tagir Aushev (EPFL, ITEP)

Partial reconstructionAbout 40 times higher eff. than full reconstruction method1.1(0.6) inclusive-J/(c) events in 535 million Y(4S) decays

Tagir Aushev (EPFL, ITEP)

Results with 535M Y(4S) decaysBr(Y(4S)B0B0J/KS+J/(c)KS) 4x107 (90%C.L.)SM prediction : 1.4x10-7Control sampleB D(*)- and D*- B0 c KS and J/ KS

Nsig=35 16 eventsB0 J/ KSB0 J/(c) KSWith 30 billion Y(4S) (30ab-1),such decays will be observed with 5 significance

Tagir Aushev (EPFL, ITEP)

SummaryCP violations was measured in various B decaysBoth mixing-induced & direct CPV observed Excellent agreement with Standard ModelSmall room for New Physics remains in flavour sector Next order of the statistics is needed to give an answer for the New Physics existence

Tagir Aushev (EPFL, ITEP)