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Decay of excited nuclei produced in the<sup>78,82</sup>Kr+<sup>40</sup>Ca reactions at 5.5 MeV/nucleon

G. AdémardGrand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Bvd H. Becquerel, 14076, Caen, FranceJ. P. WieleczkoGrand Accélérateur National d'Ions LourdsJ. Gómez del CampoPhysics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USAM. LaCommaraDipartimento di Scienze Fisiche, Università di Napoli ”Federico II”, I-80126, Napoli, ItalyÉ. BonnetGrand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Bvd H. Becquerel, 14076, Caen, FranceM. VigilanteDipartimento di Scienze Fisiche, Università di Napoli ”Federico II”, I-80126, Napoli, ItalyA. ChbihiGrand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Bvd H. Becquerel, 14076, Caen, FranceJ. D. FranklandGrand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Bvd H. Becquerel, 14076, Caen, FranceE. RosatoDipartimento di Scienze Fisiche, Università di Napoli ”Federico II”, I-80126, Napoli, ItalyG. SpadacciniDipartimento di Scienze Fisiche, Università di Napoli ”Federico II”, I-80126, Napoli, ItalySh. A. KalandarovInstitute of Nuclear Physics, 702132 Tashkent, UzbekistanCh. BeckUniversité de StrasbourgS. BarliniINFN, Sezione di Firenze, I-50125 Firenze, ItalyB. BorderieCentre National de la Recherche ScientifiqueR. BougaultLaboratoire de Physique Corpusculaire de CaenR. DayrasCEA, IRFU, SPhN, CEA/Saclay, F-91191, Gif-sur-Yvette Cedex, FranceG. de AngelisINFN, LNL, I-35020 Legnaro (Padova) ItalyJ. De SanctisINFN, Sezione di Bologna, I-40127 Bologna, ItalyV.L. KravchukINFN, LNL, I-35020 Legnaro (Padova) ItalyP. LautesseCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesN. Le NeindreLaboratoire de Physique Corpusculaire de CaenJocelyne MoisanGrand Accélérateur National d'Ions LourdsAntonio D’OnofrioDipartimento di Scienze Ambientali, Seconda Università di Napoli, I-81100, Caserta, ItalyM. PârlogÉcole Nationale Supérieure d'Ingénieurs de CaenD. PierroutsakouINFN, Sezione di Napoli, I-80126, Napoli, ItalyM. RomoliINFN, Sezione di Napoli, I-80126, Napoli, ItalyR. RoyLaboratoire de Physique Nucléaire, Université de Laval, Québec, CanadaG. G. AdamianJoint Institute for Nuclear Research, 141980 Dubna, RussiaN. V. AntonenkoJoint Institute for Nuclear Research, 141980 Dubna, Russia

EPJ Web of Conferencesjournal2011en

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Annotatsiya

Decay modes of excited nuclei are studied in 78,82Kr + 40Ca reactions at 5.5 MeV/nucleon by means of light-charged particles measured in coincidence with intermediate mass fragments and fission-like fragments. Inclusive cross-section distributions of fragments with charge 3 ≤ Z ≤ 28 are bell-shaped and a strong oddeven-staggering (o-e-s) is observed for 3 ≤ Z ≤ 12. Coincidence measurements suggest that the light partners in very asymmetric ﬁssion are emitted at excitation energies below the particle emission thresholds. Data were confronted to the predictions of statistical models describing the decay of compound nuclei by emission of light particles and fragments. Comparison with models suggests that the o-e-s of the light-fragment yields is mainly due to the successive steps of compound nucleus disintegration.

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Nuclear physics research studies Markov Chains and Monte Carlo Methods Nuclear reactor physics and engineering

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DOI: 10.1051/epjconf/20111710005

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