A combined analysis of Y(2240) in the e+e-→K+K- and e+e-→KS0KL0 processes.
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| Title: | A combined analysis of Y(2240) in the e+e-→K+K- and e+e-→KS0KL0 processes. |
|---|---|
| Authors: | Chen, Dian-Yong1,2 (AUTHOR) chendy@seu.edu.cn, Liu, Jing3 (AUTHOR) liujing@hue.edu.cn, Bai, Yu1 (AUTHOR) baiy@seu.edu.cn, Liu, Chun-Hua1 (AUTHOR) liuch@seu.edu.cn, Yan, Wen-Biao4 (AUTHOR) wenbiao@ustc.edu.cn, Meng, Zhao-Xia5 (AUTHOR) sps_mengzx@ujn.edu.cn |
| Source: | European Physical Journal C -- Particles & Fields. Dec2025, Vol. 85 Issue 12, p1-10. 10p. |
| Subjects: | Electron-positron interactions, Kaons, Data analysis, Mesons, Particle physics, Vector mesons, Isobaric spin |
| Abstract: | In the present work, we perform a combined analysis of the cross sections for e + e - → K + K - and e + e - → K S 0 K L 0 by including the interference between direct coupling process and resonance intermediate process. When setting the isospin factor as a free parameter, we can well reproduce the structures in the cross sections for e + e - → K + K - and e + e - → K S 0 K L 0 , however, the isospin factor deviates with the isospin symmetry conservation predicted value of one. By fixing the isospin factor to be one, we find the cross sections for e + e - → K + K - can be accurately fitted, while the same model parameters fail to adequately reproduce the observed cross section for the process e + e - → K S 0 K L 0 , which indicate that there should be contributions from other vector meson states, such as ρ (2150) and ω (2220). The combined analysis with ϕ (2170) , ω (2220) and ρ (2150) indicate that the inclusion of ρ (2150) can improve the descriptions of the cross sections for e + e - → K + K - and e + e - → K S 0 K L 0. [ABSTRACT FROM AUTHOR] |
| Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 190943094 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A combined analysis of Y(2240) in the e+e-→K+K- and e+e-→KS0KL0 processes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chen%2C+Dian-Yong%22">Chen, Dian-Yong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> chendy@seu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Jing%22">Liu, Jing</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> liujing@hue.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Bai%2C+Yu%22">Bai, Yu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> baiy@seu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Chun-Hua%22">Liu, Chun-Hua</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liuch@seu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yan%2C+Wen-Biao%22">Yan, Wen-Biao</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> wenbiao@ustc.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Meng%2C+Zhao-Xia%22">Meng, Zhao-Xia</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> sps_mengzx@ujn.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. Dec2025, Vol. 85 Issue 12, p1-10. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electron-positron+interactions%22">Electron-positron interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Kaons%22">Kaons</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis%22">Data analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Mesons%22">Mesons</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+physics%22">Particle physics</searchLink><br /><searchLink fieldCode="DE" term="%22Vector+mesons%22">Vector mesons</searchLink><br /><searchLink fieldCode="DE" term="%22Isobaric+spin%22">Isobaric spin</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In the present work, we perform a combined analysis of the cross sections for e + e - → K + K - and e + e - → K S 0 K L 0 by including the interference between direct coupling process and resonance intermediate process. When setting the isospin factor as a free parameter, we can well reproduce the structures in the cross sections for e + e - → K + K - and e + e - → K S 0 K L 0 , however, the isospin factor deviates with the isospin symmetry conservation predicted value of one. By fixing the isospin factor to be one, we find the cross sections for e + e - → K + K - can be accurately fitted, while the same model parameters fail to adequately reproduce the observed cross section for the process e + e - → K S 0 K L 0 , which indicate that there should be contributions from other vector meson states, such as ρ (2150) and ω (2220). The combined analysis with ϕ (2170) , ω (2220) and ρ (2150) indicate that the inclusion of ρ (2150) can improve the descriptions of the cross sections for e + e - → K + K - and e + e - → K S 0 K L 0. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1140/epjc/s10052-025-15109-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 1 Subjects: – SubjectFull: Electron-positron interactions Type: general – SubjectFull: Kaons Type: general – SubjectFull: Data analysis Type: general – SubjectFull: Mesons Type: general – SubjectFull: Particle physics Type: general – SubjectFull: Vector mesons Type: general – SubjectFull: Isobaric spin Type: general Titles: – TitleFull: A combined analysis of Y(2240) in the e+e-→K+K- and e+e-→KS0KL0 processes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chen, Dian-Yong – PersonEntity: Name: NameFull: Liu, Jing – PersonEntity: Name: NameFull: Bai, Yu – PersonEntity: Name: NameFull: Liu, Chun-Hua – PersonEntity: Name: NameFull: Yan, Wen-Biao – PersonEntity: Name: NameFull: Meng, Zhao-Xia IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 14346044 Numbering: – Type: volume Value: 85 – Type: issue Value: 12 Titles: – TitleFull: European Physical Journal C -- Particles & Fields Type: main |
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