6533b85afe1ef96bd12b9e06

RESEARCH PRODUCT

B meson decay constants f(Bc), f(Bs) and f(B) from QCD sum rules

Michael J. BakerJosé M. Bordes VillagrasaCesáreo A. DomínguezJosé Antonio Peñarrocha GantesK. Schilcher

subject

FísicaNuclear Experiment

description

Finite energy QCD sum rules with Legendre polynomial integration kernels are used to determine the heavy meson decay constant f(Bc), and revisit f(B) and f(Bs). Results exhibit excellent stability in a wide range of values of the integration radius in the complex squared energy plane, and of the order of the Legendre polynomial. Results are f(Bc) = 528 +/- 19 MeV, f(B) = 186 +/- 14 MeV, and f(Bs) = 222 +/- 12 MeV.

yearjournalcountryeditionlanguage
2014-01-01
10.1007/jhep07(2014)032http://hdl.handle.net/10550/38946