Charged charmoniumlike structures in the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process based on the ISPE mechanism
Abstract In 2017, the BESIII Collaboration announced the observation of a charged charmonium-like structure in the $$\psi (3686)\pi ^\pm $$ ψ(3686)π± invariant mass spectrum of the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process at different energy points, which enables us...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-07-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-7121-9 |
| _version_ | 1818577871273197568 |
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| author | Qi Huang Dian-Yong Chen Xiang Liu Takayuki Matsuki |
| author_facet | Qi Huang Dian-Yong Chen Xiang Liu Takayuki Matsuki |
| author_sort | Qi Huang |
| collection | DOAJ |
| description | Abstract In 2017, the BESIII Collaboration announced the observation of a charged charmonium-like structure in the $$\psi (3686)\pi ^\pm $$ ψ(3686)π± invariant mass spectrum of the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process at different energy points, which enables us to perform a precise study of this process based on the initial single pion emission (ISPE) mechanism. In this work, we perform a combined fit to the experimental data of the cross section of $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- , and the corresponding $$\psi (3686)\pi ^\pm $$ ψ(3686)π± and dipion invariant mass spectra. Our result shows that the observed charged charmonium-like structure in $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- can be well reproduced based on the ISPE mechanism, and that the corresponding dipion invariant mass spectrum and cross section can be depicted with the same parameters. In fact, it provides strong evidence that the ISPE mechanism can be an underlying mechanism resulting in such novel a phenomenon. |
| first_indexed | 2024-12-16T06:36:48Z |
| format | Article |
| id | doaj.art-730754f7e8e443f5adc7eb9708a058d6 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-16T06:36:48Z |
| publishDate | 2019-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-730754f7e8e443f5adc7eb9708a058d62022-12-21T22:40:46ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-07-0179711110.1140/epjc/s10052-019-7121-9Charged charmoniumlike structures in the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process based on the ISPE mechanismQi Huang0Dian-Yong Chen1Xiang Liu2Takayuki Matsuki3School of Physical Science and Technology, Lanzhou UniversitySchool of Physics, Southeast UniversitySchool of Physical Science and Technology, Lanzhou UniversityTokyo Kasei UniversityAbstract In 2017, the BESIII Collaboration announced the observation of a charged charmonium-like structure in the $$\psi (3686)\pi ^\pm $$ ψ(3686)π± invariant mass spectrum of the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process at different energy points, which enables us to perform a precise study of this process based on the initial single pion emission (ISPE) mechanism. In this work, we perform a combined fit to the experimental data of the cross section of $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- , and the corresponding $$\psi (3686)\pi ^\pm $$ ψ(3686)π± and dipion invariant mass spectra. Our result shows that the observed charged charmonium-like structure in $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- can be well reproduced based on the ISPE mechanism, and that the corresponding dipion invariant mass spectrum and cross section can be depicted with the same parameters. In fact, it provides strong evidence that the ISPE mechanism can be an underlying mechanism resulting in such novel a phenomenon.http://link.springer.com/article/10.1140/epjc/s10052-019-7121-9 |
| spellingShingle | Qi Huang Dian-Yong Chen Xiang Liu Takayuki Matsuki Charged charmoniumlike structures in the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process based on the ISPE mechanism European Physical Journal C: Particles and Fields |
| title | Charged charmoniumlike structures in the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process based on the ISPE mechanism |
| title_full | Charged charmoniumlike structures in the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process based on the ISPE mechanism |
| title_fullStr | Charged charmoniumlike structures in the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process based on the ISPE mechanism |
| title_full_unstemmed | Charged charmoniumlike structures in the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process based on the ISPE mechanism |
| title_short | Charged charmoniumlike structures in the $$e^+ e^- \rightarrow \psi (3686) \pi ^+ \pi ^-$$ e+e-→ψ(3686)π+π- process based on the ISPE mechanism |
| title_sort | charged charmoniumlike structures in the e e rightarrow psi 3686 pi pi e e ψ 3686 π π process based on the ispe mechanism |
| url | http://link.springer.com/article/10.1140/epjc/s10052-019-7121-9 |
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