B_c - meson sum rules at next-to-leading order

Details B_c - meson sum rules at next-to-leading order B_c - meson sum rules at next-to-leading order

2000-05-13

arxiv.org/abs/hep-ph/0005127v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 5 figues

Scientific paper

We present B_c-meson two-point sum rules at next-to-leading order in NRQCD
approximation. Analitycal results for perturbative spectral density and gluon
condensate contribution with account for summed Coulomb corrections are given.
Estimates of various c-quark masses together with couplings and masses of
lowest lying B_c-meson resonances are performed.

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