https://doi.org/10.1140/epjc/s10052-021-08877-4
Regular Article – Theoretical Physics
Toward charged
structure under a reflection mechanism
1
School of Physical Science and Technology, Lanzhou University, 730000, Lanzhou, China
2
Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, 730000, Lanzhou, China
3
Tokyo Kasei University, 1-18-1 Kaga, 173-8602, Itabashi, Tokyo, Japan
Received:
12
December
2020
Accepted:
13
January
2021
Published online:
19
January
2021
Very recently, the BESIII Collaboration reported a charged hidden-charm structure with strangeness in the recoil mass of of a process
or
, which is named as
. The newly observed charged structure can be treated as a partner structure with strangeness of well-known
reported in a process
. In this work, we propose a reflection picture to understand the nature of
. By performing a combined analysis for the line shape of the recoil mass distribution of
at five energy points
GeV, we find that the
can be explained as a reflection structure of charmed-strange meson
, which is produced from the open-charm decay of Y(4660) with a
meson. Furthermore, we predicted the angular distribution of final state
in process
based on our proposed reaction mechanism, which may be an essential criterion to test the non-resonant nature of
further.
© The Author(s) 2021
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3