Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum

doi:10.1016/j.nuclphysa.2013.10.001

	Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum
	He, Jun1,2,3,4 ; Lu, Pei-Liang 1,2,3,5
刊名	NUCLEAR PHYSICS A
	2013-12-02
卷号	919 页码:1-14
关键词	Molecular State Bethe-salpeter Equation Charmonium
ISSN号	0375-9474
DOI	10.1016/j.nuclphysa.2013.10.001
文献子类	Article
英文摘要	In this work we study the structures near 4.3 GeV in the J/psi phi invariant mass spectra in B meson decay process B+ -> J/psi phi K+ and two photon fusion process gamma gamma -> J/psi phi. The Y(4274) as a DsDs0 (2317) molecular is studied in the Bethe-Salpeter equation approach with quasipotential approximation. The absence of Y(4274) in gamma gamma -> J/psi phi channel can be well explained by the decay widths of Y(4274) decaying to gamma gamma and J/psi phi. The distribution of mass difference released by CMS Collaboration is reproduced by two resonances near 4.3 GeV, Y(4274) and X(4320). The different production mechanism suggests X(4320) observed in the B decay should be the missing 3(3) P-1 charmonium state chi(c1)'', and different from X(4350) observed in two photon fusion which can be assigned as chi(c2)''. (C) 2013 Elsevier B.V. All rights reserved.
资助项目	Chinese Academy of Sciences (Knowledge Innovation Project)[KJCX2-EW-N01]
WOS关键词	CHARMONIUM-LIKE STRUCTURES ; INTEGRAL-EQUATION ; 2-FERMION SYSTEM ; STATE ; DECAY
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000327826900001
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48103]
专题	中国科学院近代物理研究所
通讯作者	He, Jun
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Nucl Theory Grp, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	He, Jun,Lu, Pei-Liang. Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum[J]. NUCLEAR PHYSICS A,2013,919:1-14.
APA	He, Jun,&Lu, Pei-Liang.(2013).Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum.NUCLEAR PHYSICS A,919,1-14.
MLA	He, Jun,et al."Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum".NUCLEAR PHYSICS A 919(2013):1-14.