Workshop on B decay into D** and related issues

Nov 26, 2012, 2:00 PM → Nov 28, 2012, 4:00 PM Europe/Paris

Seminar Room (Jussieu)

The B decay into D** contains various interesting issues both from the theoretical and experimental point of view. There are many puzzles in the experimental data and between theory and experiment. This challenges our understanding of QCD and is of high relevance for an accurate estimate of Vcb.

 

We will discuss the latest lattice result on the B-> D** form factor as well as the spectroscopy. We will also discuss related subjects.  One of the most important subjects would be |Vcb| determination. For this, we will discuss the latest theoretical computation of the B-> D(*) form factor for exclusive extraction of Vcb. We will discuss extensively these issues including the recent theoretical and experimental progresses.

 

The topics covered:

(a) experimental situation for semi-leptonics and nonleptonics
(b) lattice results for spectroscopy and decay amplitudes 
(c) other theoretical approaches (quark model, sum rules..)
(d) B to D,D* and the estimate of Vcb (inclusive, exclusive) 

The local Organizers: 

Eli Ben-Haim (LPNHE-Jussieu)
Benoit Blossier (LPT-Orsay)
Emi Kou (LAL-Orsay)
Olivier Pene (LPT-Orsay)
Konstantin Petrov (LAL-Orsay)
Patrick Roudeau (LAL-Orsay)

 

 

Papier contribution_LHCb_Gligorov.pdf

Slides

• contribution_Alain.pdf
• contribution_LeYaouanc.pdf
• contribution_Loiseau.pdf
• contribution_Marc.pdf
• Contribution_Roudeau.pdf
• contribution_Sasa.pdf
• outline1.pdf
• outline2.pdf
• Summary1.pdf
• Summary2.pdf

Monday, November 26

2:00 PM → 4:00 PM D meson Spectroscopy

Convener: B. Blossier

2:00 PM Welcome and introductory remarks

Speaker: E. Ben-Haim & B. Blossier

2:15 PM D and Ds excited spectroscopy and properties (Babar)

Speaker: M. Karbach

Transparents karbach.pdf

2:45 PM D resonant states and D pi scattering states from lattice QCD

Speaker: S. Prelovsek

Transparents prelovsek_paris_12.pdf

3:15 PM D** spectroscopy

Speaker: M. Kalinowski

Transparents slides.monday.martin.kalinowski.pdf

3:30 PM Discussions

Transparents Dsstar_Workshop_radial_v1.pdf

4:00 PM → 4:30 PM coffee break

4:30 PM → 6:15 PM Semi-leptonic B -> D(*) and B -> D* tau nu

Convener: T. Iijima

4:30 PM B --> D(*) l nu: an experimental overview

Speaker: V. Luth

Transparents Luth_Paris_2012.pdf

5:00 PM Form factors of semileptonic B to D and D* from lattice

Speaker: G.M. de Divitiis

Transparents presentation.pdf

5:30 PM Prospects on B --> D* tau nu_tau at LHCb

Speaker: M. John

Transparents MalcolmJohn.pdf

5:45 PM Discussions

8:00 PM → 10:00 PM Workshop Dinner

Abri-Cotier 145 Bd de Montparnasse

Tuesday, November 27

9:00 AM → 10:30 AM Semi-leptonic B-> D's (Broad-states)

Convener: S. Hashimoto

9:00 AM B --> D** at infinite heavy mass

Speaker: M. Wagner

Transparents Slides.pdf

9:30 AM A strategy to compute B --> D** l nu at finite mass on the lattice

Speaker: V. Morenas

Transparents BtoDss.pdf

10:00 AM Lattice preliminary results on B --> D/D*/D** l nu

Speaker: M. Atoui

Transparents workshop_B_to_D**_pres_mariam.pdf

10:15 AM Discussions

10:30 AM → 11:00 AM coffee break

11:00 AM → 12:30 PM Semi-leptonic B-> D's (Broad-states)

Convener: K. Petrov

11:00 AM B --> Xc l nu, Xc everything except D and D*: an experimental overview

Speaker: F. Bernlochner

Transparents dds_Paris_2012.pdf

11:30 AM Prospects on B --> charm decays at Super Belle

Speaker: Ph. Urquijo

Transparents 2012_Dss_Paris_Urquijo.pdf

11:45 AM Semileptonic vs. non leptonic B --> D**

Speaker: A. Le Yaouanc

Transparents WorkshopBD-LeYaouanc(1).pdf

12:15 PM Discussions

12:30 PM → 2:00 PM lunch

2:00 PM → 3:30 PM Issues of D broad resonances

Convener: O. Pene

2:00 PM A proposed solution to puzzles in B semileptonic decays

Speaker: F. Bernlochner

2:15 PM Excited heavy-quark mesons and the heavy quark expansion

Speaker: N. Uraltsev

Transparents paris12.pdf

2:45 PM Hints on tau_1/2 from Bs --> D_s(0+) pi

Speaker: D. Becirevic

Transparents WorkshopBD-Damir.pdf

3:00 PM Discussions

3:30 PM → 4:00 PM coffee break

4:00 PM → 6:00 PM Issues of D broad resonances

Convener: V. Gligorov

4:00 PM B --> D(*) pi pi

Speaker: T. Latham

Transparents latham.pdf

4:30 PM S wave and radial excited states in tau and D decays

Speaker: P. Roudeau

Transparents Dsstar_Workshop_tau_D_radial_v1.pdf

5:00 PM Discussions

Transparents Dsstar_Workshop_plots.pdf lhcbsemilep.key.pdf

Wednesday, November 28

9:00 AM → 10:30 AM Non-leptonic decays (factorization, new opportunities etc)

Convener: E. Kou

9:00 AM Non leptonic B to D** from Belle

Speaker: D. Matvienko

Transparents matvienko.pdf

9:30 AM Bjorken-like sum rules and the Lorentz group

Speaker: L. Oliver

Transparents OLIVER-JUSSIEU.pdf

9:50 AM Coupling to the radial excitation D'_(s)

Speaker: F. Sanfilippo

Transparents sanfilippo.pdf

10:05 AM Discussions

10:30 AM → 11:00 AM coffee break

11:00 AM → 12:30 PM Non-leptonic decays (factorization, new opportunities etc)