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Xu, Hao; Li, Qiang; Chang, Chao-Hsi; Wang, Guo-Li
Recently observed P-c as molecular states and possible mixture of P-c (4457)
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordHIDDEN-CHARM PENTAQUARK B-C HEAVY DECAY
AbstractA recently observed spectrum of P-c states exhibits a strong link to Sigma(c)(D) over bar(*) thresholds. In spite of successful molecular interpretations, we still push forward to wonder whether there exist finer structures. Utilizing the effecitve Lagrangians respecting heavy quark symmetry and chiral symmetry, as well as instantaneous Bethe-Salpeter equations, we investigate the Sigma(c)(D) over bar(*) interactions and three P-c, states. We confirm that P-c (4312) and P-c (4440) are good candidates of Sigma(c)(D) over bar and Sigma(c)(D) over bar(*) molecules with spin-1/2, respectively. Unlike other molecular calculations, our results indicate the P-c (4457) signal might be a mixture of spin-3/2 and spin-1/2 Sigma(c)(D) over bar(*) molecules, where the latter one appears to be an excitation of P-c (4440). Therefore we conclude that, confronting three LHCb P-c signals, there may exist not three, but four molecular states.
2020
ISSN2470-0010
Volume101Issue:5Pages:54037
Cooperation Status国内
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.101.054037
Indexed BySCIE
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27078
CollectionSCI期刊论文
Affiliation1.Northwestern Polytech Univ, Sch Phys Sci & Technol, Xian 710129, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.CCAST World Lab, POB 8730, Beijing 100190, Peoples R China
5.Hebei Univ, Dept Phys, Baoding 071002, Peoples R China
Recommended Citation
GB/T 7714
Xu, Hao,Li, Qiang,Chang, Chao-Hsi,et al. Recently observed P-c as molecular states and possible mixture of P-c (4457)[J]. PHYSICAL REVIEW D,2020,101(5):54037.
APA Xu, Hao,Li, Qiang,Chang, Chao-Hsi,&Wang, Guo-Li.(2020).Recently observed P-c as molecular states and possible mixture of P-c (4457).PHYSICAL REVIEW D,101(5),54037.
MLA Xu, Hao,et al."Recently observed P-c as molecular states and possible mixture of P-c (4457)".PHYSICAL REVIEW D 101.5(2020):54037.
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