WG2
Session 3
March 18, 8:30am-10:00am (Santa Francisco) Vub and Vcb
chair:T. Mannel
Vcb from exclusive SL B decays
8:30-8:50 Measurements of B->Xclnu decays F. Simonetto pdf
8:55-9:15 F(1) from Lattice QCD A. Kronfeld pdf
9:20-9:35 Dispersive bounds B. Grinstein pdf
9:40-9:55 V_{ub} from exclusive B decays D. Pirjol pdf
10:00-10:10 Comparison of QCD sum rules vs. lattice for B->rho gamma/B->K* gamma R. Zwicky pdf

Determining |Vcb| and probing HQET in exclusive semileptonic decays:

  1. Prospects for B->D*lnu decays:
    • With what precision can F(1)|Vcb|^2 be measured with 500fb-1?
    • What are the prospects for improving the calculations of F(1)?
    • How much improvement can be expected in FF measurements on B->D*lnu?
    • Is it feasible to experimentally test the q2 dependence of R1 and R2?
    • The BF for B->D*lnu is needed as input to many other measurements. How much can it be improved, and when?
  2. Prospects for B->Dlnu decays:
    • With what precision can G(1)|Vcb|^2 be measured with 500fb-1?
    • What are the prospects for improving the calculations of G(1)?
    • What are the prospects for FF measurements on B->Dlnu?
    • The BF for B->Dlnu is needed as input to many other measurements. How much can it be improved, and when?
  3. Higher mass B->Xclnu decays:
    • What can be learned about Ds production in non-strange SL B decays?
    • The BF and FF for B->D**lnu is needed as input to many other measurements. How much can it be improved, and when?
  4. Other approaches:
    • Given a 500fb-1 data set, how well can one measure Vub/Vts using B->K*l+l- and B->rholnu decays?