Radiative and pionic transitions Zc (4020)0 → X (3872)γ and Zc (4020)± → X (3872)π±

被引：10
|
作者：
Voloshin, M. B. [1 ,2 ,3 ]
机构：
[1] Univ Minnesota, William I Fine Theoret Phys Inst, Minneapolis, MN 55455 USA
[2] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA
[3] Inst Theoret & Expt Phys, Moscow 117218, Russia
来源：
PHYSICAL REVIEW D | 2019年 / 99卷 / 05期
关键词：
DECAYS;
D O I：
10.1103/PhysRevD.99.054028
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The radiative transitions from the neutral exotic Z(c)(4020)(0) resonance to X(3872) with emission of a photon and the pionic transitions from the charged Z(c)(4020)(+/-) to X(3872) and a charged pion pi(+/-) are considered for both charmoniumlike states being charmed meson-antimeson molecules. The underlying processes for these transitions are the decays of the charmed vector meson to pseudoscalar plus a photon or a pion. It is found that the discussed transition rates typically amount to a branching fraction of several permil with a peak at the vector meson pair threshold.
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页数：5
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