R(D∗), |Vcb|, and the Heavy Quark Symmetry relations between form factors
Open Access
- 10 November 2017
- journal article
- research article
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2017 (11) , 61
Abstract
Stringent relations between theB(∗)→D(∗)form factors exist in the heavy quark limit and the leading symmetry breaking corrections are known. We reconsider their uncertainty and role in the analysis of recent Belle data forB→D(∗)ℓνwith model-independent parametrizations and in the related prediction ofR(D(∗)). We find |Vcb| = 41.5(1.3) 10−3and |Vcb| = 40.6(− 1.3+ 1.2) 10−3using input from Light Cone Sum Rules, andR(D∗) = 0.260(8).Keywords
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This publication has 27 references indexed in Scilit:
- B→D (*) form factors from QCD light-cone sum rulesThe European Physical Journal C, 2009
- Spectroscopy ofmesons in the relativized quark modelPhysical Review D, 2004
- A ‘BPS expansion’ for B and D mesonsPhysics Letters B, 2004
- Precision corrections to dispersive bounds on form factorsPhysical Review D, 1997
- Heavy-quark symmetryPhysics Reports, 1994
- Mesons with beauty and charm: SpectroscopyPhysical Review D, 1994
- Subleading Isgur-Wise form factorand its implications for the decaysPhysical Review D, 1994
- Subleading Isgur-Wise form factorto orderin QCD sum rulesPhysical Review D, 1993
- QCD sum rule analysis of the subleading Isgur-Wise form factor χ2(ν·ν′)Physics Letters B, 1993
- Effects of subleading operators in the heavy quark effective theoryPhysics Letters B, 1990