Search for evidence of (3)(Lambda)n by observing d + pi(-) and t + pi(-) final states in the reaction of Li-6+C-12 at 2A GeV

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dc.authorid0000-0002-4749-0815
dc.authorid0000-0002-6754-653X
dc.authorid0000-0001-5844-7073
dc.authorid0000-0001-8640-5380
dc.authorid0000-0002-5390-5052
dc.contributor.authorRappold, C.
dc.contributor.authorKim, E.
dc.contributor.authorSaito, T. R.
dc.contributor.authorBertini, O.
dc.contributor.authorBianchin, S.
dc.contributor.authorBozkurt, V.
dc.contributor.authorAchenbach, P.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractThe experimental data obtained from the reaction of Li-6 projectiles at 2A GeV on a fixed graphite target were analyzed to study the invariant mass distributions of d + pi(-) and t + pi(-). Indications of a signal in the d + pi(-) and t + pi(-) invariant mass distributions were observed with significances of 5.3 sigma and 5.0 sigma, respectively, when including the production target, and 3.7 sigma and 5.2 sigma, respectively, when excluding the target. The estimated mean values of the invariant mass for d + pi(-) and t + pi(-) signal were 2059.3 +/- 1.3 +/- 1.7 MeV/c(2) and 2993.7 +/- 1.3 +/- 0.6 MeV/c(2) respectively. The lifetime estimation of the possible bound states yielding to d + pi(-) and t + pi(-) final states were deduced to be as 181(-24)(+30) +/- 25 ps and 190(-35)(+47) +/- 36 ps, respectively. Those final states may be interpreted as the two-body and three-body decay modes of a neutral bound state of two neutrons and a Lambda hyperon, (3)(Lambda)n.
dc.description.sponsorshipGSI Departments of Accelerator, Experimental Electronics, the Detector Laboratory, and the Target Laboratory; Electronics Department of the Institute for Nuclear Physics of Mainz University; Helmholtz Association as Helmholtz-University Young Investigators Group at GSI [VH-NG-239]; German Research Foundation (DFG) [SA 1696/1-1]; Ministry of Education, Science, and Culture of Japan; Cooperative Research in Osaka Electro-communication University; EU FP7 Hadron-Physics-2 SPHERE; [18042008]
dc.description.sponsorshipThe authors thank the GSI Departments of Accelerator, Experimental Electronics, the Detector Laboratory, and the Target Laboratory and the Electronics Department of the Institute for Nuclear Physics of Mainz University for supporting the project. The HypHI project is funded by the Helmholtz Association as Helmholtz-University Young Investigators Group VH-NG-239 at GSI and the German Research Foundation (DFG) under Contract No. SA 1696/1-1. The authors acknowledge the financial support provided by the Ministry of Education, Science, and Culture of Japan, Grant-in-Aid for Scientific Research on Priority Areas 449, and Grant-in-Aid for promotion of Cooperative Research in Osaka Electro-communication University (2004-2006). This work is also supported by the Ministry of Education, Science, and Culture of Japan, Grants-in-Aid for Scientific Research 18042008 and EU FP7 Hadron-Physics-2 SPHERE. A part of this work was carried out on the HIMSTER high-performance computing infrastructure provided by the Helmholtz-Institute Mainz. We also thank A. Botavina, A. Gal, K. D. Gross, N. Hermann, E. Hiyama, R. Klanner, K. Langanke, I. Mishustin, H. Nemura, J. Schaffner-Bielich, C. Scheidenberger, H. Stocker, and J. Stroth for the involved discussions.
dc.identifier.doi10.1103/PhysRevC.88.041001
dc.identifier.issn2469-9985
dc.identifier.issn2469-9993
dc.identifier.issue4
dc.identifier.scopus2-s2.0-84885781083
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://dx.doi.org/10.1103/PhysRevC.88.041001
dc.identifier.urihttps://hdl.handle.net/11480/4340
dc.identifier.volume88
dc.identifier.wosWOS:000325579400001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherAMER PHYSICAL SOC
dc.relation.ispartofPHYSICAL REVIEW C
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleSearch for evidence of (3)(Lambda)n by observing d + pi(-) and t + pi(-) final states in the reaction of Li-6+C-12 at 2A GeV
dc.typeArticle

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