Regular Article - Theoretical Physics
, and states under the complex scaling method
College of Science, China University of Petroleum, 266580, Qingdao, Shandong, China
2 School of Physics and Center of High Energy Physics, Peking University, 100871, Beijing, China
Accepted: 29 October 2023
Published online: 23 November 2023
We investigate the , and states within the chiral effective field theory framework and the S-wave single channel molecule picture. With the complex scaling method, we accurately solve the Schrödinger equation in momentum space. Our analysis reveals that the , , and states are the resonances composed of the S-wave , , and , respectively. Furthermore, although the and states exhibit a significant difference in width, these two resonances may originate from the same channel, the S-wave . Additionally, we find two resonances in the S-wave channel, corresponding to the and states that await experimental confirmation.
© The Author(s) 2023
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. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.