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Revisiting the spectrum of baryonium in heavy baryon chiral perturbation theory
Chen, YD; Qiao, CF; Shen, PN; Zeng, ZQ
2013
发表期刊PHYSICAL REVIEW D
卷号88期号:11页码:114007
摘要In the framework of the heavy baryon perturbation theory, in which the two-pion exchange is considered, the physical properties of heavy baryon and anti-heavy baryon systems are revisited. The potentials between heavy baryon and anti-heavy baryon are extracted in a holonomic form. Based on the extracted potentials, the S-wave scattering phase shifts and scattering lengths of Lambda(c)-(Lambda(c)) over bar and Sigma(c)-(Sigma(c)) over bar are calculated. From these scattering features, it is found that the Lambda(c)-(Lambda(c)) over bar system can be bound only when the value of the coupling constant at the baryon-Goldstone-boson vertex is larger than that calculated from the decay data of the Sigma(c)(Sigma c*) -> Lambda(c)pi process. The binding condition for the Sigma(c)-(Sigma(c)) over bar system is also examined. The binding possibilities of these systems deduced from the scattering calculations are also checked by the bound state calculation and the binding energies are obtained if the system can be really bound. The binding possibility of the Lambda(b)-(Lambda) over barb system is investigated as well.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.88.114007
收录类别SCI
WOS记录号WOS:000328583800007
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224629
专题理论物理室
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Chen, YD,Qiao, CF,Shen, PN,et al. Revisiting the spectrum of baryonium in heavy baryon chiral perturbation theory[J]. PHYSICAL REVIEW D,2013,88(11):114007.
APA Chen, YD,Qiao, CF,Shen, PN,&Zeng, ZQ.(2013).Revisiting the spectrum of baryonium in heavy baryon chiral perturbation theory.PHYSICAL REVIEW D,88(11),114007.
MLA Chen, YD,et al."Revisiting the spectrum of baryonium in heavy baryon chiral perturbation theory".PHYSICAL REVIEW D 88.11(2013):114007.
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