Anticharmed pentaquark Θc(3099) from QCD sum rules

Hungchong Kim; Su Houng Lee; Yongseok Oh

doi:10.1016/j.physletb.2004.06.038

Anticharmed pentaquark Θ_c(3099) from QCD sum rules

Hungchong Kim, Su Houng Lee, Yongseok Oh

Department of Physics

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

We construct QCD sum rules for the anti-charmed pentaquark Θ_c(3099), recently reported at HERA. The sum rules are constructed similarly with the Θ⁺(1540) sum rules using the anti-charmed analogue of the Θ⁺ interpolating field. The strange quark and quark-gluon mixed condensates, which were important in the Θ⁺ sum rules, are replaced by the gluon condensates whose contribution to the OPE is suppressed due to the heavy quark mass. Our result suggests that the parity of Θ_c is positive. We identify the difference from the Θ⁺ sum rule, which leads to the positive parity in this heavy-light pentaquark system. The obtained mass is similar to the experimental value.

Original language	English
Pages (from-to)	293-300
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	595
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physletb.2004.06.038
Publication status	Published - 2004 Aug 12

Bibliographical note

Funding Information:
We are grateful to M. Oka and Fl. Stancu for fruitful discussions. The work of S.H.L. was supported by KOSEF under Grant No. 1999-2-111-005-5. The work of Y.O. was supported by Forschungszentrum-Jülich, contract No. 41445282 (COSY-058).

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2004.06.038

Cite this

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title = "Anticharmed pentaquark Θc(3099) from QCD sum rules",

abstract = "We construct QCD sum rules for the anti-charmed pentaquark Θc(3099), recently reported at HERA. The sum rules are constructed similarly with the Θ+(1540) sum rules using the anti-charmed analogue of the Θ+ interpolating field. The strange quark and quark-gluon mixed condensates, which were important in the Θ+ sum rules, are replaced by the gluon condensates whose contribution to the OPE is suppressed due to the heavy quark mass. Our result suggests that the parity of Θc is positive. We identify the difference from the Θ+ sum rule, which leads to the positive parity in this heavy-light pentaquark system. The obtained mass is similar to the experimental value.",

author = "Hungchong Kim and Lee, {Su Houng} and Yongseok Oh",

note = "Funding Information: We are grateful to M. Oka and Fl. Stancu for fruitful discussions. The work of S.H.L. was supported by KOSEF under Grant No. 1999-2-111-005-5. The work of Y.O. was supported by Forschungszentrum-J{\"u}lich, contract No. 41445282 (COSY-058). ",

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AU - Kim, Hungchong

AU - Lee, Su Houng

AU - Oh, Yongseok

N1 - Funding Information: We are grateful to M. Oka and Fl. Stancu for fruitful discussions. The work of S.H.L. was supported by KOSEF under Grant No. 1999-2-111-005-5. The work of Y.O. was supported by Forschungszentrum-Jülich, contract No. 41445282 (COSY-058).

PY - 2004/8/12

Y1 - 2004/8/12

N2 - We construct QCD sum rules for the anti-charmed pentaquark Θc(3099), recently reported at HERA. The sum rules are constructed similarly with the Θ+(1540) sum rules using the anti-charmed analogue of the Θ+ interpolating field. The strange quark and quark-gluon mixed condensates, which were important in the Θ+ sum rules, are replaced by the gluon condensates whose contribution to the OPE is suppressed due to the heavy quark mass. Our result suggests that the parity of Θc is positive. We identify the difference from the Θ+ sum rule, which leads to the positive parity in this heavy-light pentaquark system. The obtained mass is similar to the experimental value.

AB - We construct QCD sum rules for the anti-charmed pentaquark Θc(3099), recently reported at HERA. The sum rules are constructed similarly with the Θ+(1540) sum rules using the anti-charmed analogue of the Θ+ interpolating field. The strange quark and quark-gluon mixed condensates, which were important in the Θ+ sum rules, are replaced by the gluon condensates whose contribution to the OPE is suppressed due to the heavy quark mass. Our result suggests that the parity of Θc is positive. We identify the difference from the Θ+ sum rule, which leads to the positive parity in this heavy-light pentaquark system. The obtained mass is similar to the experimental value.

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