Hypernuclear spectroscopy of products from Li-6 projectiles on a carbon target at 2 A GeV

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dc.authorid0000-0002-4749-0815
dc.authorid0000-0001-8640-5380
dc.authorid0000-0002-5390-5052
dc.authorid0000-0002-6754-653X
dc.authorid0000-0001-5844-7073
dc.contributor.authorRappold, C.
dc.contributor.authorKim, E.
dc.contributor.authorNakajima, D.
dc.contributor.authorSaito, T. R.
dc.contributor.authorBertini, O.
dc.contributor.authorBianchin, S.
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.abstractA novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy ion beams, was conducted. Using the invariant mass method, the spectroscopy of hypernuclear products of Li-6 projectiles on a carbon target at 2 A GeV was performed. Signals of the Lambda-hyperon and H-3(Lambda) and H-4(Lambda) hypernuclei were observed for final states of p + pi(-), He-3 + pi(-) and He-4 + pi(-), respectively, with significance values of 6.7, 4.7 and 4.9 sigma. By analyzing the proper decay time from secondary vertex distribution with the unbinned maximum likelihood fitting method, their lifetime values were deduced to be 262(-43)(+56) +/- 45 ps for Lambda, 183(-32)(+42) +/- 37 ps for H-3(Lambda), and 140(-33)(+48) +/- 35 ps for H-4(Lambda). (c) 2013 Elsevier B.V. All rights reserved.
dc.description.sponsorshipElectronics 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 [18042008]; EU FP7 Hadron-Physics-2 SPHERE; GSI Department of Accelerator; GSI Department of Experimental Electronics; GSI Department of the Detector Laboratory; GSI Department of the Target Laboratory
dc.description.sponsorshipThe authors would like to thank the GSI Departments of Accelerator, of Experimental Electronics, of the Detector Laboratory and of 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 number 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.
dc.identifier.doi10.1016/j.nuclphysa.2013.05.019
dc.identifier.endpage184
dc.identifier.issn0375-9474
dc.identifier.issn1873-1554
dc.identifier.scopus2-s2.0-84879751885
dc.identifier.scopusqualityQ2
dc.identifier.startpage170
dc.identifier.urihttps://dx.doi.org/10.1016/j.nuclphysa.2013.05.019
dc.identifier.urihttps://hdl.handle.net/11480/4352
dc.identifier.volume913
dc.identifier.wosWOS:000322848900009
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofNUCLEAR PHYSICS A
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectNUCLEAR REACTIONS C(Li-6, X), (Li-6, t), (Li-6, H-4), E=2 GeV/nucleon
dc.subjectmeasured Lambda, H-3,H-4 Lambda-hypernuclei invariant mass distribution, T-1/2
dc.subjectdeduced Lambda mass, H-3,H-4 Lambda-hypernuclei mass, T-1/2. Compared with other data, lifetime measurement
dc.titleHypernuclear spectroscopy of products from Li-6 projectiles on a carbon target at 2 A GeV
dc.typeArticle

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