Abstract
We present a study of the B spectrum performed in the framework of heavy quark effective theory expanded to next-to-leading order in 1/mb and nonperturbative in the strong coupling. Our analyses have been performed on Nf=2 lattice gauge field ensembles corresponding to three different lattice spacings and a wide range of pion masses. We obtain the Bs-meson mass and hyperfine splittings of the B- and Bs-mesons that are in good agreement with the experimental values and examine the mass difference mBs-mB as a further cross-check of our previous estimate of the b-quark mass. We also report on the mass splitting between the first excited state and the ground state in the B and Bs systems.
DOI
10.1103/physrevd.92.054509
Publication Date
2015-09-21
Publication Title
Physical Review D
Volume
92
Issue
5
Publisher
American Physical Society (APS)
ISSN
1550-2368
Embargo Period
2024-11-22
Recommended Citation
Bernardoni, F., Blossier, B., Bulava, J., Della Morte, M., & et al. (2015) 'B-meson spectroscopy in HQET at order1/m', Physical Review D, 92(5). American Physical Society (APS): Available at: https://doi.org/10.1103/physrevd.92.054509
