中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 近代物理研究所
  3. 中国科学院近代物理研究所
Measurement of the H-3(Lambda) lifetime in Au plus Au collisions at the BNL Relativistic Heavy Ion Collider

文献类型：期刊论文

作者Adamczyk, L.2; Adams, J. R.29; Adkins, J. K.2; Agakishiev, G.1; Aggarwal, M. M.31; Ahammed, Z.54; Ajitanand, N. N.42; Alekseev, I16,26; Alford, J.18; Anderson, D. M.44
刊名PHYSICAL REVIEW C
出版日期2018-05-22
卷号97期号:5页码:054909
ISSN号2469-9985
DOI10.1103/PhysRevC.97.054909
英文摘要An improved measurement of the H-3(Lambda) lifetime is presented. In this paper, the mesonic decay modes H-3(Lambda) -> He-3 + pi(-) and H-3(Lambda) -> d + p + pi(-) are used to reconstruct the H-3(Lambda) from Au+Au collision data collected by the STAR collaboration at Relativistic Heavy Ion Collider (RHIC) A minimum chi(2) estimation is used to determine the lifetime tau = 142(+21)(-24 )(stat.)+/- 29 (syst.) ps. This lifetime is about 50% shorter than the lifetime tau = 263 +/- 2 ps of a free A, indicating strong hyperon-nucleon interaction in the hypernucleus system. The branching ratios of the mesonic decay channels are also determined to satisfy B.R.(He-3+ pi(-))/(B.R.(H-3+pi(-))/B.R.((d+p+pi))) = 0.32 +/- 0.05 (stat.)+/- 0.08 (syst.). Our ratio result favors the assignment J(H-3(Lambda)) = 1/2 over J(H-3(Lambda)) = 3/2. These measurements will help to constrain models of hyperon-baryon interactions.
WOS关键词LIGHT HYPERFRAGMENTS ; NEUTRON-STARS ; DECAY-RATES ; HYPERNUCLEI ; 3HLAMBDA ; LAMBDAH3 ; HYPERTRITON ; 3/LAMBDA-H ; 4HLAMBDA ; BINDING
资助项目RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the US DOE Office of Science ; US National Science Foundation ; Ministry of Education and Science of the Russian Federation ; National Natural Science Foundation of China ; Chinese Academy of Science ; Ministry of Science and Technology of China (973 Program)[2014CB845400] ; Chinese Ministry of Education ; National Research Foundation of Korea ; GA ; MSMT of the Czech Republic ; Department of Atomic Energy ; Department of Science and Technology of the Government of India ; National Science Centre of Poland ; National Research Foundation ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia ; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) ; Helmholtz Association
WOS研究方向Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000433031700005
资助机构RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the US DOE Office of Science ; US National Science Foundation ; Ministry of Education and Science of the Russian Federation ; National Natural Science Foundation of China ; Chinese Academy of Science ; Ministry of Science and Technology of China (973 Program) ; Chinese Ministry of Education ; National Research Foundation of Korea ; GA ; MSMT of the Czech Republic ; Department of Atomic Energy ; Department of Science and Technology of the Government of India ; National Science Centre of Poland ; National Research Foundation ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia ; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) ; Helmholtz Association
源URL[http://119.78.100.186/handle/113462/58853]  
专题中国科学院近代物理研究所
通讯作者Adamczyk, L.
作者单位1.Joint Inst Nucl Res, Dubna 141980, Russia
2.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland
3.Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
4.Brookhaven Natl Lab, Upton, NY 11973 USA
5.Univ Calif Berkeley, Berkeley, CA 94720 USA
6.Univ Calif Davis, Davis, CA 95616 USA
7.Univ Calif Los Angeles, Los Angeles, CA 90095 USA
8.Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
9.Univ Chicago, Chicago, IL 60607 USA
10.Creighton Univ, Omaha, NE 68178 USA
推荐引用方式
GB/T 7714		 Adamczyk, L.,Adams, J. R.,Adkins, J. K.,et al. Measurement of the H-3(Lambda) lifetime in Au plus Au collisions at the BNL Relativistic Heavy Ion Collider[J]. PHYSICAL REVIEW C,2018,97(5):054909.
APA Adamczyk, L..,Adams, J. R..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,...&Zyzak, M..(2018).Measurement of the H-3(Lambda) lifetime in Au plus Au collisions at the BNL Relativistic Heavy Ion Collider.PHYSICAL REVIEW C,97(5),054909.
MLA Adamczyk, L.,et al."Measurement of the H-3(Lambda) lifetime in Au plus Au collisions at the BNL Relativistic Heavy Ion Collider".PHYSICAL REVIEW C 97.5(2018):054909.

入库方式： OAI收割

来源：近代物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。