Bottom-charmed meson spectrum from a QCD approach based on the Tamm-Dancoff approximation

被引：10

作者：

Abreu, L. M. ^{[1
]}

da Costa Junior, F. M. ^{[1
,2
]}

Favero, A. G. ^{[3
]}

机构：

[1] Univ Fed Bahia, Inst Fis, Campus Univ Ondina, BR-40170115 Salvador, BA, Brazil

[2] Inst Fed Sertao Pernambucano, BR-56316686 Petrolina, PE, Brazil

[3] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

来源：

PHYSICAL REVIEW D | 2020年 / 102卷 / 03期

关键词：

B-C MESON; QUARK-MODEL; SPECTROSCOPY;

D O I：

10.1103/PhysRevD.102.034002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The bottom-charmed meson spectrum is studied via an effective version of the Coulomb gauge QCD Hamiltonian. The Tamm-Dancoff approximation is employed to estimate the energies of the low-lying and radial-excited B-c states with quantum numbers J(P)= 0(-), 0(+), 1(-), 1(+), 2(+), 2(-). In particular, we analyze the effects of incorporating an effective transverse hyperfine interaction and spin mixing. The Regge trajectories and hyperfine splitting of both S- and P-wave states are also examined. The numerical results are compared with available experimental data and the theoretical predictions of other models.

引用

页数：13

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