期刊
PHYSICS LETTERS B
卷 790, 期 -, 页码 490-497出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2019.01.055
关键词
Correlations; Femtoscopy; N Omega dibaryon
资金
- RCF at BNL
- NERSC Center at LBNL
- Open Science Grid consortium
- Office of Nuclear Physics within the U.S. DOE Office of Science
- U.S. National Science Foundation
- Ministry of Education and Science of the Russian Federation
- Chinese Academy of Sciences [2014CB845400, 2015CB856900]
- Chinese Ministry of Education
- National Research Foundation of Korea, Czech Science Foundation
- Ministry of Education, Youth and Sports of the Czech Republic, Department of Atomic Energy and Department of Science and Technology of the Government of India
- National Science Centre of Poland
- Ministry of Science, Education and Sports of the Republic of Croatia, ROSATOMof Russia
- German Bundesministerium fur Bildung, Wissenschaft, Forschung und Technologie(BMBF)
- Helmholtz Association
We present the first measurement of the proton-Omega correlation function in heavy-ion collisions for the central (0-40%) and peripheral (40-80%) Au + Au collisions at root s(NN) = 200 GeV by the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). Predictions for the ratio of peripheral collisions to central collisions for the proton-Omega correlation function are sensitive to the presence of a nucleon-Omega bound state. These predictions are based on the proton-Omega interaction extracted from (2 + 1)-flavor lattice QCD calculations at the physical point. The measured ratio of the proton-Omega correlation function between the peripheral (small system) and central (large system) collisions is less than unity for relative momentum smaller than 40 MeV/c. Comparison of our measured correlation ratio with theoretical calculation slightly favors a proton-Omega bound system with a binding energy of similar to 27 MeV. (C) 2019 Published by Elsevier B.V.
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