B Meson Decay Constants fBc, fBs and fB from QCD Sum Rules
نویسندگان
چکیده
Finite energy QCD sum rules with Legendre polynomial integration kernels are used to determine the heavy meson decay constant fBc , and revisit fB and fBs . 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 fBc = 528 ± 19 MeV, fB = 186 ± 14 MeV, and fBs = 222± 12 MeV. ar X iv :1 31 0. 09 41 v5 [ he pph ] 2 2 A pr 2 01 4
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