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Confirmation of the X(1835) and Observation of the Resonances X(2120) and X(2370) in J/psi -> gamma pi(+)pi(-)eta '
BESIII Callaboration
2011
发表期刊PHYSICAL REVIEW LETTERS
卷号106期号:7
通讯作者Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
摘要With a sample of (225.2 +/- 2.8) x 10(6) J/psi events registered in the BESIII detector, J/psi -> gamma pi(+)pi(-)eta' is studied using two eta' decay modes: eta' -> pi(+)pi(-)eta and eta' -> gamma rho(0). The X(1835), which was previously observed by BESII, is confirmed with a statistical significance that is larger than 20 sigma. In addition, in the pi(+)pi(-)eta' invariant-mass spectrum, the X(2120) and the X(2370), are observed with statistical significances larger than 7.2 sigma and 6.4 sigma, respectively. For the X(1835), the angular distribution of the radiative photon is consistent with expectations for a pseudoscalar.
关键词BARYONIUM GLUEBALL
学科领域Physics
DOI10.1103/PhysRevLett.106.072002
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000287392300004
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213016
专题实验物理中心
作者单位中国科学院高能物理研究所
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BESIII Callaboration. Confirmation of the X(1835) and Observation of the Resonances X(2120) and X(2370) in J/psi -> gamma pi(+)pi(-)eta '[J]. PHYSICAL REVIEW LETTERS,2011,106(7).
APA BESIII Callaboration.(2011).Confirmation of the X(1835) and Observation of the Resonances X(2120) and X(2370) in J/psi -> gamma pi(+)pi(-)eta '.PHYSICAL REVIEW LETTERS,106(7).
MLA BESIII Callaboration."Confirmation of the X(1835) and Observation of the Resonances X(2120) and X(2370) in J/psi -> gamma pi(+)pi(-)eta '".PHYSICAL REVIEW LETTERS 106.7(2011).
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