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 Registration

Introduction

1 Welcome and Workshop Goals

Speaker: Vera Luth (SLAC)

Slides Luth_Vxb_2009.pdf

Exclusive B -> Xclnu: B->D(*)lnu

2 Experimental Status of B ->D(*)lnu

Speaker: Christoph Schwanda (Austrian Academy of Sciences)

Slides schwanda.pdf

3 Lattice Calculations for B->D(*)lnu

Speaker: Ruth Van de Water (BNL)

Slides VandeWater_BtoD_Vxb09.pdf

4 New Lattice Methods

Speaker: Benoit Blossier (Paris sud Orsay)

Slides vxb09blossier.pdf

16:00 break

Exclusive B -> Xclnu: B->D**lnu

5 Experimental Status of B ->D**/D(*)pilnu

Speaker: David Lopes-Pegna (Princeton University)

Slides VxbOct29.pdf

6 Theoretical predictions on B->D**/D(*)pilnu

Speaker: Bigi Ikaros (U. NotreDame)

Slides SLACVxb09.pdf

7 Radiative corrections to D/D*/pi/rholnu Decays

Speaker: Florian Bernlochner (Humboldt U. Berlin)

Slides florian.pdf

8 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

Inclusive B -> Xclnu

9 Theory Overview

Speaker: Thomas Mannel (Siegen U)

Slides Mannel.pdf

10 Heavy Quark Mass Review

Speaker: Andre Hoang (MPI Munich)

Slides Hoang_quarkmasses.pdf Hoang_quarkmasses.ppt

11 B->Xclnu moment measurement

Speaker: marcello rotondo (INFN and U. Padova)

Slides vxb09_rotondo.pdf

10:30 break

Inclusive B -> Xclnu

12 Inclusive b to s gamma measurements – spectrum and moments

Speaker: Dr Antonio Limosani (University of Melbourne)

Slides SLAC_v2.pdf SLAC_v2.pptx

13 Global fit Overview

Speaker: Christoph Schwanda (Austrian Academy of Sciences)

Slides gambino.pdf schwanda.pdf

14 Calculations at (alpha_s 1/m_b^2) Order

Speaker: Enrico Lunghi (Indiana University)

Slides lunghi.pdf

12:30 Lunch Break

Inclusive B -> Xclnu

15 Calculations at (alpha_s^2) Order

Speaker: Kirill Melnikov (J. Hopkins U.)

Slides vxb.pdf

16 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

17 Discussion - list of questions

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

text vcb_incl.rtf

15:30 break

Exclusive B -> Xulnu and D SL decays

18 Experimental Status of Exclusive B->Xulnu

Speaker: Jochen Christian Dingfelder (Physikalisches Institut Freiburg)

19 Status of lattice Calculations for B->pilnu

Speaker: Ruth Van de Water (BNL)

Slides VandeWater_BtoPi_Vxb09.pdf

20 Summary of Non-lattice Calculations for SL B and D Decays

Speaker: Alexander Khodjamirian (Siegen University)

Slides Vxb09-Khodjamirian.pdf

21 Informal Summary of B and D(s) leptonic and D(s) semileptonic decays

Speaker: Lawrence Gibbons (Cornell University)

Slides Dsemi.pdf

22 Discussion - list of questions

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

text Vxb2009Questions.rtf

Saturday 31 October

Inclusive B -> Xulnu

23 Overview of inclusive |Vub| Determinations

Speaker: Frank Tackmann (MIT)

Slides tackmann_vxb09.pdf

24 Belle Recent Results

Speaker: Phillip Urquijo (University of Geneva)

Slides urquijo_InclusiveVub_vxbSLAC.pdf

25 BaBar Recent Results

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

10:30 break

Inclusive B -> Xulnu

26 NNLO Corrections to B -> Xu l nu in the Shape-Function Region

Speaker: Ben Pecjak (DESY)

Slides PecjakVxb.pdf.pdf

27 Power corrections for inclusive Xu l nu and Xs gamma decays

Speaker: gil paz (U. Chicago)

Slides Vxb2009_1031.pdf

28 Simba -- A global fit approach to |Vub|

Speaker: Kerstin Tackmann (CERN)

Slides simba_kerstin.pdf

13:00 Lunch Break

Inclusive B -> Xulnu

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

Speaker: Massimiliano Procura (MIT)

Slides massiVxb.pdf

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

Conclusion and Discussion

31 UTFitter and |Vub|/|Vcb|

Speaker: Dr Cecilia Tarantino (Technical University Munich)

Slides UTA_vxb09.pdf

32 CKM Fitter and |Vub|/|Vcb|

Speaker: Gerald Eigen (Department of Physics and Technology)

slides GE_vxb09.pdf

15:45 break

33 Workshop Summary: Discussion

Speaker: Zoltan Ligeti (LBNL)

Slides vxb.pdf