Revisiting [formula omitted] as a 0+ tetraquark state from QCD sum rules.
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| Title: | Revisiting [formula omitted] as a 0+ tetraquark state from QCD sum rules. |
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| Authors: | Zhang, Jian-Rong1 |
| Source: | Physics Letters B. Feb2019, Vol. 789, p432-437. 6p. |
| Subjects: | Quantum chromodynamics, Tetraquark, Scalar field theory, Factorization, Nuclear physics experiments |
| Abstract: | Abstract Stimulated by the renewed observation of D s 0 ⁎ (2317) signal and its updated mass value 2318.3 ± 1.2 ± 1.2 MeV / c 2 in the process e + e − → D s ⁎ + D s 0 ⁎ (2317) − + c. c. by BESIII Collaboration, we devote to reinvestigate D s 0 ⁎ (2317) as a 0 + tetraquark state from QCD sum rules. Technically, four different possible currents are adopted and high condensates up to dimension 12 are included in the operator product expansion (OPE) to ensure the quality of QCD sum rule analysis. In the end, we obtain the mass value 2.37 − 0.36 + 0.50 GeV with the factorization parameter ρ = 1 (or 2.23 − 0.24 + 0.78 GeV with ρ = 3) for the scalar–scalar current, which agrees well with the experimental data of D s 0 ⁎ (2317) and could support its explanation as a 0 + scalar–scalar tetraquark state. The final result for the axial–axial configuration is calculated to be 2.51 − 0.43 + 0.61 GeV with ρ = 1 (or 2.52 + 0.76 − 0.52 GeV with ρ = 3), which is still consistent with the mass of D s 0 ⁎ (2317) considering the uncertainty, and then the possibility of D s 0 ⁎ (2317) as a axial–axial tetraquark state can not be excluded. For the pseudoscalar–pseudoscalar and the vector–vector cases, their unsatisfactory OPE convergence makes that it is of difficulty to find rational work windows to further acquire hadronic masses. [ABSTRACT FROM AUTHOR] |
| Copyright of Physics Letters B is the property of Elsevier B.V. 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 134356105 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Revisiting [formula omitted] as a 0+ tetraquark state from QCD sum rules. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Jian-Rong%22">Zhang, Jian-Rong</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Physics+Letters+B%22">Physics Letters B</searchLink>. Feb2019, Vol. 789, p432-437. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Quantum+chromodynamics%22">Quantum chromodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Tetraquark%22">Tetraquark</searchLink><br /><searchLink fieldCode="DE" term="%22Scalar+field+theory%22">Scalar field theory</searchLink><br /><searchLink fieldCode="DE" term="%22Factorization%22">Factorization</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+physics+experiments%22">Nuclear physics experiments</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract Stimulated by the renewed observation of D s 0 ⁎ (2317) signal and its updated mass value 2318.3 ± 1.2 ± 1.2 MeV / c 2 in the process e + e − → D s ⁎ + D s 0 ⁎ (2317) − + c. c. by BESIII Collaboration, we devote to reinvestigate D s 0 ⁎ (2317) as a 0 + tetraquark state from QCD sum rules. Technically, four different possible currents are adopted and high condensates up to dimension 12 are included in the operator product expansion (OPE) to ensure the quality of QCD sum rule analysis. In the end, we obtain the mass value 2.37 − 0.36 + 0.50 GeV with the factorization parameter ρ = 1 (or 2.23 − 0.24 + 0.78 GeV with ρ = 3) for the scalar–scalar current, which agrees well with the experimental data of D s 0 ⁎ (2317) and could support its explanation as a 0 + scalar–scalar tetraquark state. The final result for the axial–axial configuration is calculated to be 2.51 − 0.43 + 0.61 GeV with ρ = 1 (or 2.52 + 0.76 − 0.52 GeV with ρ = 3), which is still consistent with the mass of D s 0 ⁎ (2317) considering the uncertainty, and then the possibility of D s 0 ⁎ (2317) as a axial–axial tetraquark state can not be excluded. For the pseudoscalar–pseudoscalar and the vector–vector cases, their unsatisfactory OPE convergence makes that it is of difficulty to find rational work windows to further acquire hadronic masses. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Physics Letters B is the property of Elsevier B.V. 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: 10.1016/j.physletb.2019.01.001 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 432 Subjects: – SubjectFull: Quantum chromodynamics Type: general – SubjectFull: Tetraquark Type: general – SubjectFull: Scalar field theory Type: general – SubjectFull: Factorization Type: general – SubjectFull: Nuclear physics experiments Type: general Titles: – TitleFull: Revisiting [formula omitted] as a 0+ tetraquark state from QCD sum rules. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhang, Jian-Rong IsPartOfRelationships: – BibEntity: Dates: – D: 10 M: 02 Text: Feb2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 03702693 Numbering: – Type: volume Value: 789 Titles: – TitleFull: Physics Letters B Type: main |
| ResultId | 1 |
