A search for Bs0∗ and Bs1∗ through the K-p interaction.
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| Title: | A search for Bs0∗ and Bs1∗ through the K-p interaction. |
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| Authors: | Yuan, Min1 (AUTHOR) yuanm@my.swjtu.edu.cn, Huang, Yin1 (AUTHOR) huangy2019@swjtu.edu.cn |
| Source: | European Physical Journal C -- Particles & Fields. Mar2026, Vol. 86 Issue 3, p1-9. 9p. |
| Subjects: | Particle interactions, Nuclear cross sections, Heavy quark effective theory, Scattering (Physics), Mesons, Particle physics |
| Abstract: | Studying heavy-quark hadrons is crucial due to the nonperturbative nature of low-energy QCD, with Heavy-Quark Symmetry (HQS) serving as a key framework for understanding their spin and flavor symmetries. However, a key issue is that the theoretically expected B (∗) K ¯ molecular states have not yet been observed, although they are considered the bottom-quark counterparts of the observed D ¯ (∗) K ¯ molecular states (corresponding to D s 0 (2317 / 2460) - ), which challenges the universality of HQS. The main goal of this work is to search for the theoretically predicted B K ¯ and B ∗ K ¯ molecular states, namely B s 0 ∗ (5725) and B s 1 ∗ (5778) , via the reactions K - p → Λ b 0 B s 0 ∗ and K - p → Λ b 0 B s 1 ∗ . Within an effective Lagrangian framework, we compute the relevant cross sections, considering t-channel B (∗) exchanges and K - p initial-state interactions (ISI). The results show that the production cross sections of B s 0 ∗ (5725) and B s 1 ∗ (5778) can reach the order of 0.01 nb, and we suggest that experiments searching for B s 0 ∗ (5725) are best performed at P K - = 12.18 GeV , while higher energies are most favorable for producing B s 1 ∗ (5778) . The ISI play a crucial role, as they not only significantly enhance the production cross sections of B s 0 ∗ (5725) and B s 1 ∗ (5778) (by roughly one order of magnitude) but also markedly affect the angular distributions of the produced particles. We also calculated the production cross sections of the conventional quark–antiquark states B s 0 ∗ (5700) and B s 1 ∗ (5720) , which are found to be nearly the same as those of B s 0 ∗ (5725) and B s 1 ∗ (5778) . Although their internal structures remain ambiguous, these results can inform future experimental searches at CERN and J-PARC. [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: 192983427 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A search for Bs0∗ and Bs1∗ through the K-p interaction. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Yuan%2C+Min%22">Yuan, Min</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yuanm@my.swjtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Yin%22">Huang, Yin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> huangy2019@swjtu.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>. Mar2026, Vol. 86 Issue 3, p1-9. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Particle+interactions%22">Particle interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+cross+sections%22">Nuclear cross sections</searchLink><br /><searchLink fieldCode="DE" term="%22Heavy+quark+effective+theory%22">Heavy quark effective theory</searchLink><br /><searchLink fieldCode="DE" term="%22Scattering+%28Physics%29%22">Scattering (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Mesons%22">Mesons</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+physics%22">Particle physics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Studying heavy-quark hadrons is crucial due to the nonperturbative nature of low-energy QCD, with Heavy-Quark Symmetry (HQS) serving as a key framework for understanding their spin and flavor symmetries. However, a key issue is that the theoretically expected B (∗) K ¯ molecular states have not yet been observed, although they are considered the bottom-quark counterparts of the observed D ¯ (∗) K ¯ molecular states (corresponding to D s 0 (2317 / 2460) - ), which challenges the universality of HQS. The main goal of this work is to search for the theoretically predicted B K ¯ and B ∗ K ¯ molecular states, namely B s 0 ∗ (5725) and B s 1 ∗ (5778) , via the reactions K - p → Λ b 0 B s 0 ∗ and K - p → Λ b 0 B s 1 ∗ . Within an effective Lagrangian framework, we compute the relevant cross sections, considering t-channel B (∗) exchanges and K - p initial-state interactions (ISI). The results show that the production cross sections of B s 0 ∗ (5725) and B s 1 ∗ (5778) can reach the order of 0.01 nb, and we suggest that experiments searching for B s 0 ∗ (5725) are best performed at P K - = 12.18 GeV , while higher energies are most favorable for producing B s 1 ∗ (5778) . The ISI play a crucial role, as they not only significantly enhance the production cross sections of B s 0 ∗ (5725) and B s 1 ∗ (5778) (by roughly one order of magnitude) but also markedly affect the angular distributions of the produced particles. We also calculated the production cross sections of the conventional quark–antiquark states B s 0 ∗ (5700) and B s 1 ∗ (5720) , which are found to be nearly the same as those of B s 0 ∗ (5725) and B s 1 ∗ (5778) . Although their internal structures remain ambiguous, these results can inform future experimental searches at CERN and J-PARC. [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/s10052-026-15495-5 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1 Subjects: – SubjectFull: Particle interactions Type: general – SubjectFull: Nuclear cross sections Type: general – SubjectFull: Heavy quark effective theory Type: general – SubjectFull: Scattering (Physics) Type: general – SubjectFull: Mesons Type: general – SubjectFull: Particle physics Type: general Titles: – TitleFull: A search for Bs0∗ and Bs1∗ through the K-p interaction. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Yuan, Min – PersonEntity: Name: NameFull: Huang, Yin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 14346044 Numbering: – Type: volume Value: 86 – Type: issue Value: 3 Titles: – TitleFull: European Physical Journal C -- Particles & Fields Type: main |
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