Eur. Phys. J. A (2016) 52: 310
https://doi.org/10.1140/epja/i2016-16310-0

Regular Article - Theoretical Physics

Pionic transition from Y(4260) to Z_c(3900) in a hadronic molecular scenario

¹ Department of Physics, Southeast University, 210094, Nanjing, China
² Theoretical Physics Center for Science Facilities (TPCSF), CAS, 100049, Beijing, China
³ Institute of High Energy Physics, 100049, Beijing, China
⁴ School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China

^* e-mail: chendy@seu.edu.cn

Received: 5 September 2016
Accepted: 15 September 2016
Published online: 13 October 2016

Abstract

We study the pionic transition from Y(4260) to Z _c(3900), where Y(4260) and Z _c(3900) are regarded as the weakly bound states of D (2420) + H.c. and D + H.c., respectively. The partial width of Y(4260) Z _c(3900) is estimated to be of the order of MeV with the wave functions of the bound states, where the wave functions are simulated by the simple harmonic oscillator wave functions with equivalent root-mean-square radii.