期刊
PHYSICS LETTERS B
卷 754, 期 -, 页码 360-372出版社
ELSEVIER
DOI: 10.1016/j.physletb.2016.01.040
关键词
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资金
- State Committee of Science, Armenia
- World Federation of Scientists (WFS), Armenia
- Swiss Fonds Kidagan, Armenia
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Financiadora de Estudos e Projetos (FINEP)
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
- National Natural Science Foundation of China (NSFC)
- Chinese Ministry of Education (CMOE)
- Ministry of Science and Technology of China (MSTC)
- Ministry of Education and Youth of the Czech Republic
- Danish Natural Science Research Council
- Carlsberg Foundation
- Danish National Research Foundation
- European Research Council under the European Community's Seventh Framework Programme
- Helsinki Institute of Physics
- Academy of Finland
- French CNRS-IN2P3, France
- 'Region Pays de Loire', France
- 'Region Alsace', France
- 'Region Auvergne', France
- CEA, France
- German Bundesministerium fur Bildung
- Wissenschaft
- Forschung und Technologie (BMBF)
- Helmholtz Association
- General Secretariat for Research and Technology, Ministry of Development, Greece
- Hungarian Orszagos Tudomanyos Kutatasi Alappgrammok (OTKA)
- National Office for Research and Technology (NKTH)
- Department of Atomic Energy and Department of Science and Technology of the Government of India
- Istituto Nazionale di Fisica Nucleare (INFN), Italy
- Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Italy
- MEXT, Japan
- Joint Institute for Nuclear Research, Dubna
- National Research Foundation of Korea (NRF)
- Consejo Nacional de Cienca y Tecnologia (CONACYT), Mexico
- Direccion General de Asuntos del Personal Academico (DGAPA), Mexico
- Amerique Latine Formation academique - European Commission (ALFA-EC)
- EPLANET Program (European Particle Physics Latin American Network)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
- Research Council of Norway (NFR)
- National Science Centre, Poland
- Ministry of National Education/Institute for Atomic Physics, Romania
- National Council of Scientific Research in Higher Education (CNCSI-UEFISCDI), Romania
- Ministry of Education and Science of the Russian Federation
- Russian Academy of Sciences
- Russian Federal Agency of Atomic Energy
- Russian Federal Agency for Science and Innovations
- Russian Foundation for Basic Research
- Ministry of Education of Slovakia
- Department of Science and Technology, Republic of South Africa, South Africa
- Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (CIEMAT)
- Ministerio de Economia y Competitividad (MINECO) of Spain
- Xunta de Galicia (Conselleria de Educacion)
- Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), Cubaenergia, Cuba
- IAEA (International Atomic Energy Agency)
- Swedish Research Council (VR)
- Knut and Alice Wallenberg Foundation (KAW)
- Ukraine Ministry of Education and Science
- United Kingdom Science and Technology Facilities Council (STFC)
- United States Department of Energy
- United States National Science Foundation
- State of Texas
- State of Ohio
- Ministry of Science, Education and Sports of Croatia
- Unity through Knowledge Fund, Croatia
- Council of Scientific and Industrial Research (CSIR), New Delhi, India
- Science and Technology Facilities Council [1521430, 2014 STFC Nuclear Physics CG, ST/M001601/1, GRIDPP, 1231104, ST/M001598/1, 1523365, ALICE, ST/L005689/1, ST/L005751/1, ST/J000108/1, ST/M00158X/1, ST/L005670/1] Funding Source: researchfish
- STFC [ST/L005670/1, ST/M001598/1, ST/M00158X/1, 2014 STFC Nuclear Physics CG, ST/L005751/1, ALICE, ST/M001601/1, ST/J000108/1, ST/L005689/1] Funding Source: UKRI
- Grants-in-Aid for Scientific Research [26610071, 25287048, 15H03664] Funding Source: KAKEN
- Direct For Mathematical & Physical Scien
- Division Of Physics [1305280] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1307461, 1407051] Funding Source: National Science Foundation
The production of the hypertriton nuclei H-3(Lambda) and (3)((Lambda) over bar)(H) over bar has been measured for the first time in Pb-Pb collisions at root s(NN) = 2.76 TeVwith the ALICE experiment at LHC. The p(T)-integrated H-3(Lambda) yield in one unity of rapidity, dN/dy x B.R.((3 Lambda H -> 3He,pi-)) = (3.86 +/- 0.77(stat.) +/- 0.68(syst.)) x 10(-5) in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter B-3 shows a dependence on the transverse momentum, similar to the B-2 of deuterons and the B-3 of He-3 nuclei. The ratio of yields S-3 = H-3(Lambda)/(He-3 x Lambda/p) was measured to be S-3 = 0.60 +/- 0.13(stat.) +/- 0.21(syst.) in 0-10% centrality events; this value is compared to different theoretical models. The measured S-3 is compatible with thermal model predictions. The measured H-3(Lambda) lifetime, tau = 181(-39)(+54)(stat.) +/- 33(syst.) psis in agreement within 1s with the world average value. (C) 2016 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.
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