Mapping a new cluster of charmoniumlike structures at e+e− collisions
In this work, we find a Critical Energy induced Enhancement (CEE) mechanism for the general three-body open-charm process at the e+e− collisions, which utilizes the peculiar kinematic behavior of the e+e− annihilation process involving three-body final states. We present a general analysis of a thre...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-06-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321002859 |
| _version_ | 1818727845405392896 |
|---|---|
| author | Jun-Zhang Wang Dian-Yong Chen Xiang Liu Takayuki Matsuki |
| author_facet | Jun-Zhang Wang Dian-Yong Chen Xiang Liu Takayuki Matsuki |
| author_sort | Jun-Zhang Wang |
| collection | DOAJ |
| description | In this work, we find a Critical Energy induced Enhancement (CEE) mechanism for the general three-body open-charm process at the e+e− collisions, which utilizes the peculiar kinematic behavior of the e+e− annihilation process involving three-body final states. We present a general analysis of a three-body process e+e−→BC→B(C→DE). When the center-of-mass (CM) energy of the e+e− collision satisfies a critical relation s=mB+mC, there clearly exists the reflection peak of an intermediate C state near the threshold of the invariant mass distribution of mBE or mBD, whose formation is very sensitive to the CM energy. The reflection enhancement phenomenon induced at the critical energy means that a new cluster of charmoniumlike structures can be experimentally mapped. Taking an example of e+e−→Ds⁎−Ds2⁎(2573)+→Ds⁎−(D0K+), we further illustrate this novel phenomenon when s=4.680 GeV. What is more important is that a series of optimal CM energy points to search for new charmoniumlike structures in three-body open-charm processes from e+e− annihilation are suggested, which can be accessible at BESIII and further BelleII as a new research topic. |
| first_indexed | 2024-12-17T22:20:34Z |
| format | Article |
| id | doaj.art-8e47b009eef24f5b9f84c10150322113 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-17T22:20:34Z |
| publishDate | 2021-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-8e47b009eef24f5b9f84c101503221132022-12-21T21:30:29ZengElsevierPhysics Letters B0370-26932021-06-01817136345Mapping a new cluster of charmoniumlike structures at e+e− collisionsJun-Zhang Wang0Dian-Yong Chen1Xiang Liu2Takayuki Matsuki3School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China; Research Center for Hadron and CSR Physics, Lanzhou University & Institute of Modern Physics of CAS, Lanzhou 730000, ChinaSchool of Physics, Southeast University, Nanjing 210094, ChinaSchool of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China; Research Center for Hadron and CSR Physics, Lanzhou University & Institute of Modern Physics of CAS, Lanzhou 730000, China; Lanzhou Center for Theoretical Physics, Key Laboratory of Theoretical Physics of Gansu Province, and Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China; Corresponding author at: School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China.Tokyo Kasei University, 1-18-1 Kaga, Itabashi, Tokyo 173-8602, JapanIn this work, we find a Critical Energy induced Enhancement (CEE) mechanism for the general three-body open-charm process at the e+e− collisions, which utilizes the peculiar kinematic behavior of the e+e− annihilation process involving three-body final states. We present a general analysis of a three-body process e+e−→BC→B(C→DE). When the center-of-mass (CM) energy of the e+e− collision satisfies a critical relation s=mB+mC, there clearly exists the reflection peak of an intermediate C state near the threshold of the invariant mass distribution of mBE or mBD, whose formation is very sensitive to the CM energy. The reflection enhancement phenomenon induced at the critical energy means that a new cluster of charmoniumlike structures can be experimentally mapped. Taking an example of e+e−→Ds⁎−Ds2⁎(2573)+→Ds⁎−(D0K+), we further illustrate this novel phenomenon when s=4.680 GeV. What is more important is that a series of optimal CM energy points to search for new charmoniumlike structures in three-body open-charm processes from e+e− annihilation are suggested, which can be accessible at BESIII and further BelleII as a new research topic.http://www.sciencedirect.com/science/article/pii/S0370269321002859 |
| spellingShingle | Jun-Zhang Wang Dian-Yong Chen Xiang Liu Takayuki Matsuki Mapping a new cluster of charmoniumlike structures at e+e− collisions Physics Letters B |
| title | Mapping a new cluster of charmoniumlike structures at e+e− collisions |
| title_full | Mapping a new cluster of charmoniumlike structures at e+e− collisions |
| title_fullStr | Mapping a new cluster of charmoniumlike structures at e+e− collisions |
| title_full_unstemmed | Mapping a new cluster of charmoniumlike structures at e+e− collisions |
| title_short | Mapping a new cluster of charmoniumlike structures at e+e− collisions |
| title_sort | mapping a new cluster of charmoniumlike structures at e e collisions |
| url | http://www.sciencedirect.com/science/article/pii/S0370269321002859 |
| work_keys_str_mv | AT junzhangwang mappinganewclusterofcharmoniumlikestructuresateecollisions AT dianyongchen mappinganewclusterofcharmoniumlikestructuresateecollisions AT xiangliu mappinganewclusterofcharmoniumlikestructuresateecollisions AT takayukimatsuki mappinganewclusterofcharmoniumlikestructuresateecollisions |