Joint Workshop on |Vub| and |Vcb| (Vxb 2009)

29 Oct 2009, 13:00 → 31 Oct 2009, 19:00 US/Pacific

SLAC National Accelerator Laboratory

David Lopes Pegna (Princeton University)

This second workshop initiated by HFAG follows a series of similar workshops that have been been organized by the B Factories over the past decade. These informal meetings have become a valuable venue for the exchange of ideas between the theorists and experimentalists working on semileptonic B decays and related topics.

Thursday 29 October

13:00 → 14:00 Registration

14:00 → 14:30 Introduction

14:00 Welcome and Workshop Goals

Speaker: Vera Luth (SLAC)

Slides Luth_Vxb_2009.pdf

14:30 → 16:00 Exclusive B -> Xclnu: B->D(*)lnu

14:30 Experimental Status of B ->D(*)lnu

Speaker: Christoph Schwanda (Austrian Academy of Sciences)

Slides schwanda.pdf

15:00 Lattice Calculations for B->D(*)lnu

Speaker: Ruth Van de Water (BNL)

Slides VandeWater_BtoD_Vxb09.pdf

15:30 New Lattice Methods

Speaker: Benoit Blossier (Paris sud Orsay)

Slides vxb09blossier.pdf

16:00 → 16:30 break

16:30 → 18:30 Exclusive B -> Xclnu: B->D**lnu

16:30 Experimental Status of B ->D**/D(*)pilnu

Speaker: David Lopes-Pegna (Princeton University)

Slides VxbOct29.pdf

17:00 Theoretical predictions on B->D**/D(*)pilnu

Speaker: Bigi Ikaros (U. NotreDame)

Slides SLACVxb09.pdf

17:30 Radiative corrections to D/D*/pi/rholnu Decays

Speaker: Florian Bernlochner (Humboldt U. Berlin)

Slides florian.pdf

18:00 Discussion - list of questions

Speakers: Andreas Kronfeld (Fermilab), Bob Kowalewski (Department of Physics and Astronomy)

text Questions_for_exclusive_B_to_Xclnu

Friday 30 October

08:30 → 10:30 Inclusive B -> Xclnu

08:30 Theory Overview

Speaker: Thomas Mannel (Siegen U)

Slides Mannel.pdf

09:00 Heavy Quark Mass Review

Speaker: Andre Hoang (MPI Munich)

Slides Hoang_quarkmasses.pdf Hoang_quarkmasses.ppt

10:00 B->Xclnu moment measurement

Speaker: marcello rotondo (INFN and U. Padova)

Slides vxb09_rotondo.pdf

10:30 → 11:00 break

11:00 → 12:30 Inclusive B -> Xclnu

11:00 Inclusive b to s gamma measurements – spectrum and moments

Speaker: Dr Antonio Limosani (University of Melbourne)

Slides SLAC_v2.pdf SLAC_v2.pptx

11:30 Global fit Overview

Speaker: Christoph Schwanda (Austrian Academy of Sciences)

Slides gambino.pdf schwanda.pdf

12:00 Calculations at (alpha_s 1/m_b^2) Order

Speaker: Enrico Lunghi (Indiana University)

Slides lunghi.pdf

12:30 → 14:00 Lunch Break

14:00 → 15:30 Inclusive B -> Xclnu

14:00 Calculations at (alpha_s^2) Order

Speaker: Kirill Melnikov (J. Hopkins U.)

Slides vxb.pdf

14:30 Calculations at (1/m_b^n, n>3) and (1/m_b^3 1/m_c^m) Order

Speaker: Sascha Turczyk (Siegen U.)

Slides Turczyk.pdf

15:00 Discussion - list of questions

Speakers: Christoph Schwanda (Austrian Academy of Sciences), Thomas Mannel (Siegen U)

text vcb_incl.rtf

15:30 → 16:00 break

16:00 → 18:30 Exclusive B -> Xulnu and D SL decays

16:00 Experimental Status of Exclusive B->Xulnu

Speaker: Jochen Christian Dingfelder (Physikalisches Institut Freiburg)

16:30 Status of lattice Calculations for B->pilnu

Speaker: Ruth Van de Water (BNL)

Slides VandeWater_BtoPi_Vxb09.pdf

17:00 Summary of Non-lattice Calculations for SL B and D Decays

Speaker: Alexander Khodjamirian (Siegen University)

Slides Vxb09-Khodjamirian.pdf

17:30 Informal Summary of B and D(s) leptonic and D(s) semileptonic decays

Speaker: Lawrence Gibbons (Cornell University)

Slides Dsemi.pdf

18:00 Discussion - list of questions

Speakers: Junko Shigemitsu (Ohio State University), Lawrence Gibbons (Cornell University)

text Vxb2009Questions.rtf

Saturday 31 October

08:30 → 10:30 Inclusive B -> Xulnu

08:30 Overview of inclusive |Vub| Determinations

Speaker: Frank Tackmann (MIT)

Slides tackmann_vxb09.pdf

09:15 Belle Recent Results

Speaker: Phillip Urquijo (University of Geneva)

Slides urquijo_InclusiveVub_vxbSLAC.pdf

09:45 BaBar Recent Results

Speaker: Antonio Petrella (INFN and Universita' di Ferrara)

10:30 → 11:00 break

11:00 → 13:00 Inclusive B -> Xulnu

11:00 NNLO Corrections to B -> Xu l nu in the Shape-Function Region

Speaker: Ben Pecjak (DESY)

Slides PecjakVxb.pdf.pdf

11:30 Power corrections for inclusive Xu l nu and Xs gamma decays

Speaker: gil paz (U. Chicago)

Slides Vxb2009_1031.pdf

12:10 Simba -- A global fit approach to |Vub|

Speaker: Kerstin Tackmann (CERN)

Slides simba_kerstin.pdf

13:00 → 14:00 Lunch Break

14:00 → 15:00 Inclusive B -> Xulnu

14:00 Inclusive vs. Exclusive: A Novel Method for Measuring |Vub|

Speaker: Massimiliano Procura (MIT)

Slides massiVxb.pdf

14:30 Discussion - list of questions

Speakers: Concezio Bozzi (INFN Ferrara), Elisabetta Barberio (University of Melbourne), Michael Luke (U. Toronto), Vera Luth (SLAC)

Paper Vxb09_inclVub_questions.txt

Slides inclusiveVubquestions.pdf

15:00 → 17:30 Conclusion and Discussion

15:00 UTFitter and |Vub|/|Vcb|

Speaker: Dr Cecilia Tarantino (Technical University Munich)

Slides UTA_vxb09.pdf

15:15 CKM Fitter and |Vub|/|Vcb|

Speaker: Gerald Eigen (Department of Physics and Technology)

slides GE_vxb09.pdf

15:45 break

16:00 Workshop Summary: Discussion

Speaker: Zoltan Ligeti (LBNL)

Slides vxb.pdf