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

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	Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum
	He, J ; Lu, PL
刊名	NUCLEAR PHYSICS A
	2013
卷号	919 期号:-页码:1-14
关键词	CHARMONIUM-LIKE STRUCTURES INTEGRAL-EQUATION 2-FERMION SYSTEM STATE DECAY
ISSN号	0375-9474
通讯作者	He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Nucl Theory Grp, Lanzhou 730000, Peoples R China.
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.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [11275235, 11035006, 10905077]; Chinese Academy of Sciences (the Special Foundation of President) [YZ080425]; Chinese Academy of Sciences (Knowledge Innovation Project) [KJCX2-EW-N01]
原文出处	http://dx.doi.org/10.1016/j.nuclphysa.2013.10.001
语种	英语
WOS记录号	WOS:000327826900001
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15213]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	He, J,Lu, PL. Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum[J]. NUCLEAR PHYSICS A,2013,919(-):1-14.
APA	He, J,&Lu, PL.(2013).Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum.NUCLEAR PHYSICS A,919(-),1-14.
MLA	He, J,et al."Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum".NUCLEAR PHYSICS A 919.-(2013):1-14.