中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Confirmation of the x(1835) and observation of the resonances x(2120) and x(2370) in j/psi -> gamma pi(+)pi(-)eta '

文献类型:期刊论文

作者Ablikim, M.1; Achasov, M. N.5; An, L.9; An, Q.36; An, Z. H.1; Bai, J. Z.1; Baldini, R.17; Ban, Y.23; Becker, J.2; Berger, N.1
刊名Physical review letters
出版日期2011-02-16
卷号106期号:7页码:5
ISSN号0031-9007
DOI10.1103/physrevlett.106.072002
通讯作者Ablikim, m.()
英文摘要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.
WOS关键词BARYONIUM ; GLUEBALL
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000287392300004
URI标识http://www.irgrid.ac.cn/handle/1471x/2176225
专题高能物理研究所
通讯作者Ablikim, M.
作者单位1.Inst High Energy Phys, Beijing 100049, Peoples R China
2.Ruhr Univ Bochum, D-44780 Bochum, Germany
3.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
4.China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China
5.GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk, Russia
6.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
7.GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany
8.Guangxi Normal Univ, Guilin 541004, Peoples R China
9.Guangxi Univ, Nanning 530004, Peoples R China
10.Henan Normal Univ, Xinxiang 453007, Peoples R China
推荐引用方式
GB/T 7714
Ablikim, M.,Achasov, M. N.,An, L.,et al. 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):5.
APA Ablikim, M..,Achasov, M. N..,An, L..,An, Q..,An, Z. H..,...&Zweber, P..(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),5.
MLA Ablikim, M.,et al."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):5.

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来源:高能物理研究所

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