Study of Doubly Heavy Baryon Spectrum via QCD Sum Rules

In this work, we calculate the mass spectrum of doubly heavy baryons with the diquaxk model in terms of the QCD sum rules. The interpolating currents are composed of a heavy diquaxk field and a light quark field. Contributions of the operators up to dimension six are taken into account in the operat...

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Published inCommunications in theoretical physics Vol. 57; no. 3; pp. 435 - 444
Main Authors Tang, Liang, Yuan, Xu-Hao, Qiao, Cong-Feng, Li, Xue-Qian
Format Journal Article
LanguageEnglish
Published 01.03.2012
Subjects
Baryons
Compatibility
Mathematical models
Operators
Permissible error
QCD求和规则
Quantum chromodynamics
Sum rules
Tolerances
插值
计算结果
误差范围
质谱
轻夸克
运营商
重子谱
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ISSN0253-6102
DOI10.1088/0253-6102/57/3/15

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Summary:In this work, we calculate the mass spectrum of doubly heavy baryons with the diquaxk model in terms of the QCD sum rules. The interpolating currents are composed of a heavy diquaxk field and a light quark field. Contributions of the operators up to dimension six are taken into account in the operator product expansion. Within a reasonable error tolerance, our numerical results axe compatible with other theoretical predictions. This indicates that the diquaxk picture reflects the reality and is applicable to the study of doubly heavy baryons.
Bibliography:11-2592/O3
In this work, we calculate the mass spectrum of doubly heavy baryons with the diquaxk model in terms of the QCD sum rules. The interpolating currents are composed of a heavy diquaxk field and a light quark field. Contributions of the operators up to dimension six are taken into account in the operator product expansion. Within a reasonable error tolerance, our numerical results axe compatible with other theoretical predictions. This indicates that the diquaxk picture reflects the reality and is applicable to the study of doubly heavy baryons.
baryons, QCD sun rules, other nonperturbative calculation
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ISSN:0253-6102
DOI:10.1088/0253-6102/57/3/15