期刊
MODERN PHYSICS LETTERS A
卷 32, 期 26, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217732317501395
关键词
-
资金
- U.S. Department of Energy
- National Science Foundation
- Italian Istituto Nazionale di Fisica Nucleare
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Natural Sciences and Engineering Research Council of Canada
- National Science Council of the Republic of China
- Swiss National Science Foundation
- A. P. Sloan Foundation
- Bundesministerium fur Bildung und Forschung, Germany
- Korean Science and Engineering Foundation
- Korean Research Foundation
- Science and Technology Facilities Council, UK
- Royal Society, UK
- Institut National de Physique Nucleaire et Physique des Particules/CNRS
- Russian Foundation for Basic Research
- Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio, Spain
- Slovak RD Agency
- Academy of Finland
- Grants-in-Aid for Scientific Research [16K05375] Funding Source: KAKEN
The observation of the Y ( 4140) structure in B-+/- -> J/psi phi K-+/- decays produced in (p) over barp collisions at root s = 1.96 TeV is reported with a statistical significance greater than 5 standard deviations. A fit to the J/psi phi mass spectrum is performed assuming the presence of a Breit-Wigner resonance. The fit yields a signal of 19 +/- 6 (stat) +/- 3 (syst) resonance events, and resonance mass and width of 4143.4(-3.0)(+2.9) ( stat) +/- 0.6 (syst) MeV/c(2) and 15.3(-6.1)(+10.4) (stat) +/- 2.5 (syst) MeV/c(2), respectively. The parameters of this resonance-like structure are consistent with values reported from an earlier CDF analysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据
分享论文
