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He, J; Lu, PL; He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Nucl Theory Grp, Lanzhou 730000, Peoples R China.
Understanding Y(4274) and X(4320) in the J/psi phi invariant mass spectrum
发表期刊NUCLEAR PHYSICS A
语种英语
关键词Charmonium-like Structures Integral-equation 2-fermion System State Decay
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.
2013
ISSN0375-9474
卷号919期号:-页码:1-14
学科领域Physics
收录类别SCI
项目资助者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] ; 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] ; 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] ; 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]
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15213
专题理论物理所科研产出_SCI论文
通讯作者He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Nucl Theory Grp, Lanzhou 730000, Peoples R China.
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GB/T 7714
He, J,Lu, PL,He, J . 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,&He, J .(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.
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