PT Journal
AU Baker, MJ
   Bordes, J
   Dominguez, CA
   Peñarrocha, J
   Schilcher, K
TI B meson decay constants f(Bc), f(Bs) and f(B) from QCD sum rules
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2014
BP 032
EP 16pp
VL 07
IS 7
DI 10.1007/JHEP07(2014)032
LA English
DE Sum Rules; QCD
AB 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.
ER