中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Search for a light exotic particle in J/psi radiative decays

文献类型:期刊论文

作者BESIII Callaboration
刊名PHYSICAL REVIEW D
出版日期2012
卷号85期号:9
关键词GRAVITINO ENERGIES BOSONS
通讯作者Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
英文摘要Using a data sample containing 1.06 x 10(8) psi' events collected with the BESIII detector at the BEPCII electron-positron collider, we search for a light exotic particle X in the process psi' -> pi(+)pi-J/psi, J/psi -> gamma X, X -> mu(+)mu(-). This light particle X could be a Higgs-like boson A(0), a spin-1 U boson, or a pseudoscalar sgoldstino particle. In this analysis, we find no evidence for any mu(+)mu-mass peak between the mass threshold and 3.0 GeV/c(2). We set 90%-confidence-level upper limits on the product-branching fractions for J/psi -> gamma A(0), A(0) -> mu(+)mu-which range from 4 x 10(-7) to 2.1 x 10(-5), depending on the mass of A(0), for M(A(0)) < 3.0 GeV/c(2). Only one event is seen in the mass region below 255 MeV/c(2), and this has mu(+)mu-mass of 213.3 MeV/c(2) and the product-branching-fraction upper limit 5 x 10(-7).
学科主题Astronomy & Astrophysics; Physics
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000304255300003
公开日期2016-02-26
源URL[http://ir.ihep.ac.cn/handle/311005/213244]  
专题高能物理研究所_实验物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
BESIII Callaboration. Search for a light exotic particle in J/psi radiative decays[J]. PHYSICAL REVIEW D,2012,85(9).
APA BESIII Callaboration.(2012).Search for a light exotic particle in J/psi radiative decays.PHYSICAL REVIEW D,85(9).
MLA BESIII Callaboration."Search for a light exotic particle in J/psi radiative decays".PHYSICAL REVIEW D 85.9(2012).

入库方式: OAI收割

来源:高能物理研究所

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