Neutrons from multifragmentation reactions

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dc.contributor.authorTrautmann W.
dc.contributor.authorBotvina A.S.
dc.contributor.authorBrzychczyk J.
dc.contributor.authorBuyukcizmeci N.
dc.contributor.authorMishustin I.N.
dc.contributor.authorPaw?owski P.
dc.contributor.authorALADIN2000 COLLABORATION
dc.date.accessioned2020-03-26T18:22:17Z
dc.date.available2020-03-26T18:22:17Z
dc.date.issued2011
dc.departmentSelçuk Üniversitesien_US
dc.description49th International Winter Meeting on Nuclear Physics, Bormio 2011 -- 24 January 2011 through 28 January 2011 --en_US
dc.description.abstractThe neutron emission in the fragmentation of stable and radioactive Sn and La projectiles of 600 MeV per nucleon has been studied with the Large Neutron Detector LAND coupled to the ALADIN forward spectrometer at SIS. A cluster-recognition algorithm is used to identify individual particles within the hit distributions registered with LAND. The obtainedmomentumdistributions are extrapolated over the full phase space occupied by the neutrons from the projectile-spectator source. The mean multiplicities of spectator neutrons reach values of up to 12 and depend strongly on the isotopic composition of the projectile. An effective source temperature of T ? 3-4 MeV is deduced from the transverse momentum distributions. For the interpretation of the data, calculations with the Statistical Multifragmentation Model for a properly chosen ensemble of excited sources were performed. The possible modification of the liquid-drop parameters of the fragment description in the hot environment is studied, and a significant reduction of the symmetry-term coefficient is found necessary to simultaneously reproduce the neutron multiplicities and the mean neutron-to-proton ratios <N>/Z of Z ? 10 fragments. Because of the similarity of the freeze-out conditions with those encountered in supernova scenarios, this is of astrophysical interest. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.en_US
dc.identifier.issn1824-8039en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/27263
dc.identifier.volume2011-Januaryen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSissa Medialab Srlen_US
dc.relation.ispartofProceedings of Scienceen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleNeutrons from multifragmentation reactionsen_US
dc.typeConference Objecten_US

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