Heavy-light meson spectroscopy and Regge trajectories in the relativistic quark model

• Published in: The European physical journal. C, Particles and fields Vol. 66; no. 1-2; pp. 197 - 206
• Main Authors: Ebert, D., Faustov, R. N., Galkin, V. O.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01-03-2010; Springer; Springer Nature B.V
• Subjects: Analysis; Astronomy; Astrophysics and Cosmology; Elementary Particles; Hadrons; Heavy Ions; Measurement Science and Instrumentation; Mesons; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum chromodynamics; Quantum Field Theories; Quantum Field Theory; Quark models; Quarks; Regular Article - Theoretical Physics; Relativism; Relativistic effects; Spectrum analysis; String Theory; Trajectories; Unnatural Parity; BABAR Collaboration; Natural Parity; Regge Trajectory; Light Quark
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-010-1233-6

The masses of the ground, orbitally and radially excited states of heavy-light mesons are calculated within the framework of the QCD-motivated relativistic quark model based on the quasipotential approach. Both light (
q
=
u
,
d
,
s
) and heavy (
Q
=
c
,
b
) quarks are treated fully relativistically without application of the heavy-quark 1/
m
Q
expansion. The Regge trajectories in the (
M
2
,
J
) and (
M
2
,
n
r
) planes are investigated and their parameters are obtained. The results are in good agreement with available experimental data except for the masses of the anomalous
,
D
s
1
(2460) and
states.