The 8th International Workshop on the CKM Unitarity Triangle

Session

WG5

9 Sept 2014, 09:00

Vienna University of Technology

Conveners

WG5

• Alexander Lenz (IPPP, Durham)

WG5

• James Libby (Indian Institute of Technology Madras)

WG5

• Alexander Lenz (IPPP, Durham)

93. Factorization in charmless B decays

Guido Bell (University of Oxford)

09/09/2014, 09:00

I will review the status of factorisation predictions for charmless hadronic B meson decays. In particular, I will report on recent progress in obtaining a full NNLO calculation, and I will elucidate how non-perturbative methods as well as experimental measurements can help to further constrain the theoretical predictions.

94. DCPV in charmless B decays at Belle

Martin Sevior (University of Melbourne (AU))

09/09/2014, 09:25

We report preliminary measurements of the Branching Ratio (BR) for the charmless rare decays B0 -> pi0 pi0, B0 -> eta’ K*(892)0 and B+ -> Kbar*0 K*+. We also report the preliminary results for A_CP for B0 -> eta’ K*0 and the longitudinal fraction for B+ -> Kbar^*0 K*+. Previous Belle measurements of the BR for B^0 -> pi^0 pi^0 are significantly larger than theoretical expectations and employed...

95. Recent results on charmless B decays at BABAR

Eli Ben Haim (Centre National de la Recherche Scientifique (FR))

09/09/2014, 09:45

We present the results of a new search for B-meson decays to omega omega, and omega phi. These modes, yet unseen, are related to B -> phi K* decays via an SU(3) rotation. Their study can therefore provide information regarding the unexpectedly small value of the longitudinal spin component (f_L) measured in B -> phi K* decays. We also report the first Dalitz-plot analysis of charged B mesons...

96. DCPV in charmless B decays at LHCb

Marc Grabalosa Gandara (Univ. Blaise Pascal Clermont-Fe. II (FR))

09/09/2014, 10:05

Charmless B hadrons decays offer rich opportunities to test the Standard Model. For example, CP violation in charmless charged two-body and three-body B decays provides ways to measure the CKM angle gamma and to search for New Physics. Also, vector-vector final states provide additional interesting observables. Here, we present the latest LHCb results on hadronic charmless B decays putting...

97. The ultimate precision on gamma/phi3

Joachim Brod (University of Cincinnati)

09/09/2014, 10:25

I review the extraction of gamma / phi3 from tree-level B -> DK decays. In particular, I discuss the effects of direct CP violation in D decays and the ultimate theory uncertainty.

98. Towards a precise determination of gamma

Amarjit Soni (BNL)

09/09/2014, 14:30

99. Impact of D-mixing and CPV in D decays on the determination of gamma/phi3

Matteo Rama (Istituto Nazionale Fisica Nucleare (IT))

09/09/2014, 14:55

The datasets that the LHCb and Belle II experiments are expected to collect in the coming years will allow a 1-degree precision measurement of the angle gamma (phi3) using Bch->D(*)0K(*) decays. To reach this goal a number of subleading effects must be taken into account. We disuss these corrections, including the impact of D-Dbar mixing and possible CPV in D decays.

100. World average and experimental overview of gamma/phi3

Karim Trabelsi

09/09/2014, 15:20

Determination of the parameters of the Cabibbo-Kobayashi-Maskawa (CKM) matrix are important as checks on the consistency of the Standard Model, and as ways to search for new physics. Among the angles of the CKM unitarity triangle, gamma is the least-well constrained by direct measurements. In this talk, we report the determination of the angle gamma through the combination of measurements...

101. Quantum correlated measurements related to gamma/phi3

Roy Briere (Carnegie Mellon University)

09/09/2014, 15:45

Quantum correlation results from D threshold data will be reviewed, with an emphasis and more details on the recent results. Some key issues to address in the future are also highlighted.

102. phi3 measurements at Belle

James Libby (Indian Institute of Technology Madras)

11/09/2014, 14:30

A review of the Belle gamma/phi3 measurements from B->DK will be presented. Results using the ADS, GLW and GGSZ methods are presented, along with the combined measurement of gamma/phi3 from Belle.

103. gamma measurements at LHCb

Till Moritz Karbach (CERN)

11/09/2014, 14:55

We report on an updated combination of all currently available tree-level measurements of the CKM angle gamma at LHCb. For the first time we include results obtained from a time integrated analysis of B+ -> DK+, D -> KS0Kpi decays; and of B0 -> DK∗0, D -> K+K-, pi+pi-, K+pi-, pi+K- decays; and from a time-dependent analysis of Bs0 -> DsK decays. The results represent the world's best...

104. Outlook for direct CP violation measurements at LHCb

Jaap Panman (CERN)

11/09/2014, 15:20

In Run-I of the LHC, LHCb has collected a dataset corresponding to an integrated luminosity of 3 inverse fb. Much larger datasets are expected in Run-II and in the Upgrade era. An outlook of the capabilities of LHCb is given with a number of direct CPV processes involving electro-weak and gluonic penguins and a measurement of gamma using tree diagrams as examples.

105. Prospects for phi3 and charmless B decay measurements at Belle II

Pablo Goldenzweig (University of Rochester (US))

11/09/2014, 15:45

The next generation B-factory under construction at SuperKEKB / Belle II is targeted to collect an integrated luminosity of 50ab^-1, starting in 2016. This large dataset will open up a new era of precision measurements in flavor physics. This talk will focus on the potential for a sub-degree precision measurement of the least constrained angle of the CKM unitarity triangle, gamma, and the...