B{sub d,s}{yields}{rho},{omega},K*,{phi} decay form factors from light-cone sum rules reexamined

Journal Article · Sat Jan 01 04:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.014029· OSTI ID:20705726

Ball, Patricia ^[1]; Zwicky, Roman ^[2]

---

1. IPPP, Department of Physics, University of Durham, Durham DH1 3LE (United Kingdom)
2. William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

We present an improved calculation of B{yields} light vector form factors from light-cone sum rules, including one-loop radiative corrections to twist-2 and twist-3 contributions, and leading order twist-4 corrections. The total theoretical uncertainty of our results at zero momentum transfer is typically 10% and can be improved, at least in part, by reducing the uncertainty of hadronic input parameters. We present our results in a way which details the dependence of the form factors on these parameters and facilitates the incorporation of future updates of their values from, e.g., lattice calculations. We also give simple and easy-to-implement parametrizations of the q{sup 2} dependence of the form factors which are valid in the full kinematical regime of q{sup 2}.

• OSTI ID: 20705726
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 71; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B S MESONS
FORM FACTORS
K*-892 MESONS
LIGHT CONE
MOMENTUM TRANSFER
OMEGA-782 MESONS
PARTICLE DECAY
PHI-1020 MESONS
RADIATIVE CORRECTIONS
RHO-770 MESONS
SUM RULES