Mass spectroscopy and strong decays of open charm-strange mesons using relativistic Dirac formalism.
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| Title: | Mass spectroscopy and strong decays of open charm-strange mesons using relativistic Dirac formalism. |
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| Authors: | Pandya, Bhoomika1 (AUTHOR) bhumispandya@gmail.com, Shah, Manan2 (AUTHOR) mnshah09@gmail.com, Vinodkumar, P. C.2 (AUTHOR) p.c.vinodkumar@gmail.com |
| Source: | European Physical Journal C -- Particles & Fields. May2026, Vol. 86 Issue 5, p1-18. 18p. |
| Subjects: | Mesons, Hadron decay, Heavy quark effective theory, Scientific method, Relativistic quantum mechanics, Mathematical symmetry |
| Abstract: | The mass spectra of charm-strange mesons including ground, radial and orbital excitations have been calculated within a relativistic Dirac framework. The predicted masses of the first orbital excited state 1P exhibits excellent agreement with values reported by the PDG. Utilizing these mass predictions and an effective Lagrangian approach based on heavy quark and chiral symmetries, we have computed the OZI allowed two body strong decay widths of higher excited state candidates of charm-strange sector. The resulting partial widths and branching ratios enable the assignment of spin-parity quantum numbers to several newly observed charm-strange states. In particular, we identify D sJ (2700) as the 2 3 S 1 , D s 0 (2590) as the 2 1 S 0 , D sJ (2860) as the 1 3 D 3 , D s 1 (2860) as the 1 3 D 1 and D sJ (3040) as the 2 1 P 1 states. The effective coupling constants g T , g X , g Y , g ~ S and g ~ H determined in the present study appear to be consistent with the reported values. Furthermore, the D ∗ K decay channel emerges as the most promising mode for the experimental search of the missing 1 3 D 2 and 1 1 D 2 states, while the 2 3 P 0 state is more likely to be observed through the DK channel. [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.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 194633900 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Mass spectroscopy and strong decays of open charm-strange mesons using relativistic Dirac formalism. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pandya%2C+Bhoomika%22">Pandya, Bhoomika</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> bhumispandya@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Shah%2C+Manan%22">Shah, Manan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> mnshah09@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Vinodkumar%2C+P%2E+C%2E%22">Vinodkumar, P. C.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> p.c.vinodkumar@gmail.com</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>. May2026, Vol. 86 Issue 5, p1-18. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Mesons%22">Mesons</searchLink><br /><searchLink fieldCode="DE" term="%22Hadron+decay%22">Hadron decay</searchLink><br /><searchLink fieldCode="DE" term="%22Heavy+quark+effective+theory%22">Heavy quark effective theory</searchLink><br /><searchLink fieldCode="DE" term="%22Scientific+method%22">Scientific method</searchLink><br /><searchLink fieldCode="DE" term="%22Relativistic+quantum+mechanics%22">Relativistic quantum mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+symmetry%22">Mathematical symmetry</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The mass spectra of charm-strange mesons including ground, radial and orbital excitations have been calculated within a relativistic Dirac framework. The predicted masses of the first orbital excited state 1P exhibits excellent agreement with values reported by the PDG. Utilizing these mass predictions and an effective Lagrangian approach based on heavy quark and chiral symmetries, we have computed the OZI allowed two body strong decay widths of higher excited state candidates of charm-strange sector. The resulting partial widths and branching ratios enable the assignment of spin-parity quantum numbers to several newly observed charm-strange states. In particular, we identify D sJ (2700) as the 2 3 S 1 , D s 0 (2590) as the 2 1 S 0 , D sJ (2860) as the 1 3 D 3 , D s 1 (2860) as the 1 3 D 1 and D sJ (3040) as the 2 1 P 1 states. The effective coupling constants g T , g X , g Y , g ~ S and g ~ H determined in the present study appear to be consistent with the reported values. Furthermore, the D ∗ K decay channel emerges as the most promising mode for the experimental search of the missing 1 3 D 2 and 1 1 D 2 states, while the 2 3 P 0 state is more likely to be observed through the DK channel. [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/s10052-026-15725-w Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 1 Subjects: – SubjectFull: Mesons Type: general – SubjectFull: Hadron decay Type: general – SubjectFull: Heavy quark effective theory Type: general – SubjectFull: Scientific method Type: general – SubjectFull: Relativistic quantum mechanics Type: general – SubjectFull: Mathematical symmetry Type: general Titles: – TitleFull: Mass spectroscopy and strong decays of open charm-strange mesons using relativistic Dirac formalism. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pandya, Bhoomika – PersonEntity: Name: NameFull: Shah, Manan – PersonEntity: Name: NameFull: Vinodkumar, P. C. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 14346044 Numbering: – Type: volume Value: 86 – Type: issue Value: 5 Titles: – TitleFull: European Physical Journal C -- Particles & Fields Type: main |
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