Anticharmed pentaquark Θ c (3099) from QCD sum rules

Hungchong Kim, Su Houng Lee, Yongseok Oh

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)293-300
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume595
Issue number1-4
DOIs
Publication statusPublished - 2004 Aug 12

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sum rules
quantum chromodynamics
quarks
condensates
parity
analogs

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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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.",
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Anticharmed pentaquark Θ c (3099) from QCD sum rules . / Kim, Hungchong; Lee, Su Houng; Oh, Yongseok.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 595, No. 1-4, 12.08.2004, p. 293-300.

Research output: Contribution to journalArticle

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AB - 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.

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