Cargando…

The $B_{c}$ mass up to order $\alpha_{s}^{4}$

We evaluate in perturbative QCD, up to order $\alpha_s^4$, the mass of the$B_c$. We use the so-called 1S-mass in order to improve the convergence of theperturbative series. Our result is $E(B_c)_{pert} = 6323^{+3 +7}_{-1 -6}$ MeV.Non-perturbative effects are discussed. An estimate in terms of localc...

Descripción completa

Detalles Bibliográficos
Autores principales: Brambilla, Nora, Vairo, Antonio
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.62.094019
http://cds.cern.ch/record/425942