中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Observation of e(+) e(-) -> gamma chi(c1) and search for e(+) e(-) -> gamma chi(c0), gamma chi(c2), and gamma eta(c) at root s near 10.6 GeV at Belle

文献类型:期刊论文

作者Belle Collaboration
刊名PHYSICAL REVIEW D
出版日期2018
卷号98期号:9页码:92015
ISSN号2470-0010
DOI10.1103/PhysRevD.98.092015
文献子类Article
英文摘要Using data samples of 89.5 fb(-1), 711.0 fb(-1), and 121.4 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e(+)e(-) -> gamma chi(cJ) (J = 0, 1, 2) and e(+)e(-) -> gamma chi(c). A significant gamma chi(c1) signal is observed for the first time at root s = 10.58 GeV with a significance of 5.1 sigma including systematic uncertainties. No significant excesses for gamma chi(c0), gamma chi(c2), and gamma chi(c) final states are found, and we set 90% credibility level upper limits on the Born cross sections (sigma(B)) at 10.52 GeV, 10.58 GeV, and 10.867 GeV. Together with cross sections measured by BESIII at lower center-of-mass energies, the energy dependency of sigma(B) (e(+)e(-) -> gamma chi(c1)) thorn is obtained.
电子版国际标准刊号2470-0029
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:000451994500001
源URL[http://ir.ihep.ac.cn/handle/311005/286920]  
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
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Belle Collaboration. Observation of e(+) e(-) -> gamma chi(c1) and search for e(+) e(-) -> gamma chi(c0), gamma chi(c2), and gamma eta(c) at root s near 10.6 GeV at Belle[J]. PHYSICAL REVIEW D,2018,98(9):92015.
APA Belle Collaboration.(2018).Observation of e(+) e(-) -> gamma chi(c1) and search for e(+) e(-) -> gamma chi(c0), gamma chi(c2), and gamma eta(c) at root s near 10.6 GeV at Belle.PHYSICAL REVIEW D,98(9),92015.
MLA Belle Collaboration."Observation of e(+) e(-) -> gamma chi(c1) and search for e(+) e(-) -> gamma chi(c0), gamma chi(c2), and gamma eta(c) at root s near 10.6 GeV at Belle".PHYSICAL REVIEW D 98.9(2018):92015.

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来源:高能物理研究所

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