期刊论文

Abelev, B. I.

英文

Science

0036-8075

2010

328

5974

58-62

10.1126/science.1183980

U.S. DOE Office of ScienceUnited States Department of Energy (DOE); NSFNational Science Foundation (NSF); Sloan FoundationAlfred P. Sloan Foundation; DFG cluster of excellence "Origin and Structure of the Universe"German Research Foundation (DFG) [CNRS/IN2P3]; STFCUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); EPSRC of the United KingdomUK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC); FAPESP CNPq of Brazil; Ministry of Education and Science of the Russian FederationMinistry of Education and Science, Russian Federation; NNSFC of ChinaNational Natural Science Foundation of China (NSFC); CAS of China; MoST of ChinaMinistry of Science and Technology, China; MoE of ChinaMinistry of Education, China; GA of the Czech Republic; MSMT of the Czech RepublicMinistry of Education, Youth & Sports - Czech Republic; FOM of the NetherlandsFOM (The Netherlands); NOW of the NetherlandsNetherlands Government; DAE of India; DST of India; CSIR of IndiaCouncil of Scientific & Industrial Research (CSIR) - India; Polish Ministry of Science and Higher EducationMinistry of Science and Higher Education, Poland; Korea Research FoundationKorea Research Foundation; Ministry of Science, Education and Sports of the Republic of CroatiaMinistry of Science, Education and Sports, Republic of Croatia; Russian Ministry of Science and Technology and RosAtom of Russia; Science and Technology Facilities CouncilUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) [PP/F001061/1] Funding Source: researchfish

本校为其他机构

Nuclear collisions recreate conditions in the universe microseconds after the Big Bang. Only a very small fraction of the emitted fragments are light nuclei, but these states are of fundamental interest. We report the observation of antihypertritons comprising an antiproton, an antineutron, and an antilambda hyperon produced by colliding gold nuclei at high energy. Our analysis yields 70-£17 antihypertritons (3/ΛH̄) and 157 ± 30 hypertritons (3/ΛH̄ The measured yields of 3/ΛH (3/ΛH) and 3He (3He) are similar, suggesting an equilibrium i...