Strong decays of higher excited heavy-light mesons in a chiral quark model

Li-Ye Xiao and Xian-Hui Zhong
Phys. Rev. D 90, 074029 – Published 24 October 2014

Abstract

The strong decay properties of the higher excited heavy-light mesons from the first radially excited states up to the first F-wave states are studied in a constituent quark model. It is found that many missing excitations have good potentials to be found in future experiments for their narrow widths, and some of them dominantly decay into the first orbital excitations rather than into ground states. In future observations, one should focus on the decay processes not only into the ground states, but also into the low-lying P-wave excitations with JP=0+,1+. Furthermore, the nature of the newly observed states DJ(3000), DJ*(3000), and B(5970) is discussed. It is predicted that DJ(3000) seems to be a partner of DsJ(3040), which could be identified as the low-mass mixed state |2P1L (JP=1+) via the 2P11-2P31 mixing. The DJ*(3000) resonance seems to favor the 1F34 state; while the quantum numbers JP=0+ and 2+ cannot be excluded complectly, more experimental observations are needed to determine its JP values. The B(5970) resonance is most likely to be the 1D33 with JP=3.

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  • Received 30 July 2014

DOI:https://doi.org/10.1103/PhysRevD.90.074029

© 2014 American Physical Society

Authors & Affiliations

Li-Ye Xiao and Xian-Hui Zhong*

  • Department of Physics, Hunan Normal University, and Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Changsha 410081, China

  • *zhongxh@hunnu.edu.cn

See Also

Strong decays of heavy-light mesons in a chiral quark model

Xian-Hui Zhong and Qiang Zhao
Phys. Rev. D 78, 014029 (2008)

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Vol. 90, Iss. 7 — 1 October 2014

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