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| 1 | Competition between fusion-evaporation and multifragmentation in central collisions in ^(58)Ni+^(48)Ca at 25A MeV显示文摘The experimental data concerning the58Ni+48Ca reaction at Elab(Ni)=25A MeV,collected by using the CHIMERA 4π device,have been analyzed in order to investigate the competition among different reaction mechanisms for central collisions in the Fermi energy domain.As a main criterion for centrality selection we have chosen the flow angle(flow) method,making an event-by-event analysis that considers the shape of events,as it is determined by the eigenvectors of the experimental kinetic-energy tensor.For the selected central events(flow >60°) some global variables,good to characterize the pattern of central collisions have been constructed.The main features of the reaction products were explored by using different constraints on some of the relevant observables,like mass and velocity distributions and their correlations.Much emphasis was devoted,for central collisions,to the competition between fusion-evaporation processes with subsequent identification of a heavy residue and a possible multifragmentation mechanism of a well defined(if any) transient nuclear system.Dynamical evolution of the system and pre-equilibrium emission were taken into account by simulating the reactions in the framework of transport theories.Different approaches have been envisaged(dynamical stochastic BNV calculations + sequential SIMON code,QMD,CoMD,etc.).Preliminary comparison of the experimental data with BNV calculations shows reasonable agreement with the assumption of sequential multifragmentation emission in the mass region of IMFs close to the heavy residues.Possible deviations from sequential processes were found for those IMFs in the region of masses intermediate between the mass of heavy residues and the mass of light IMFs.Further simulations are in progress.The experimental analysis will be enriched also by information obtained inspecting the IMF-IMF correlation function,in order to elucidated the nature of space-time decay property of the emitting source associated with events having the largest IMF multiplicity. | FRANCALANZA L ABBONDANNO U AMORINI F BARLINI S BINI M BOUGAULT R BRUNO M CARDELLA G CASINI G AGOSTINO M D' De FILIPPO V De SANCTIS J GERACI E GIUSSANI A GRAMEGNA F GUIOT B KRAVCHUK V La GUIDARA E LANZALONE G Le NEINDRE N MAIOLINO C MARINI P MORELLI L OLMI A PAGANO A PAPA M PIANTELLI S PIRRONE S POLITI G POGGI G PORTO F RUSSOTTO P RIZZO F VANNINI G VANNUCCI L | 2013 | Nuclear Science and Techniques2013，24，5： | 2 |
| 2 | Role of free fatty acids on cardiac autonomic nervous system innoninsulin-dependent diabetic patients:effects of metabolic control显示文摘 | Manzella D Barbieri M Rizzo M R | 2001 | Clin Endocrinol Metab2001，86，1： | 1 |
| 3 | Epidennal nevus syndrome:A neurologic variant with hemimegalencephaly, gyral malformation, mental retardation,seizures and facial hemihypertrophy显示文摘 | Pavone L Curatolo P Rizzo R | 1991 | Neurology1991，41，2： | 1 |
| 4 | Role Conflict and Ambiguity in Complex Organizations显示文摘 | John R Rizzo Robert J House and Sidney I Lirtzman | 1970 | Administrative Science Quarterly1970，15，02： | 1 |
| 5 | HLA - G expression in early embryos is fundamental prerequisite for the obtainment of pregnancy 显示文摘 | Fuzzi B Rizzo R Criseuoli L | 2002 | Eur J Imrnunol2002，32，： | 1 |
| 6 | Embryonic soluble HLA-G as a marker of developmental potential in embryos显示文摘 | Noei I Fuzzi B Rizzo R | 2005 | Hum Reprod2005，20，1： | 1 |
| 7 | Travelling wave multipole field electromagnetic launcher: an SOVP analytical model显示文摘 | Musolino A Rizzo R Tripodi E | 2013 | IEEE Trans- actions on Plasma Science2013，41，5： | 1 |
| 8 | HLA-G expression in early embryos is a fundamental prerequisite for the obtain- ment of pregnancy显示文摘 | Fuzzi B Rizzo R Criscuoli L | 2002 | Eur J Immunol2002，32，： | 1 |
| 9 | Quenching and partitioning of Ni-added high strength steels 显示文摘 | Rizzo F Martins A R Matlock D et ol | 2007 | Materials Science Forum2007，，： | 1 |
| 10 | Role Conflict and Ambi- guity as Critical Variables in a Model of Organiza- tional Behavior 显示文摘 | HOUSE R J RIZZO J R | 1972 | Organization Behavior and Hu- man Performance1972，7，46： | 1 |
| 11 | HLA - G and IL - 10 in serum in relation to HLA - G genotype and polymorphisms 显示文摘 | Hviid TV Rizzo R Christiansen OB | 2004 | Immunogenet2004，56，3： | 1 |
| 12 | HLA-G may predict the disease course in patients'with early rheumatoid arthritis显示文摘 | Rizzo R Farina I Bortolotti D | 2013 | Hum Immunol2013，74，4： | 1 |
| 13 | Role conflict and ambiguity in complex organizations 显示文摘 | Rizzo J R House R J Lirtzman S I | 1970 | Admin- istrative Science Quarterly1970，15，2： | 1 |
| 14 | Basic properties of KDP related to the frequency conversion of 1μm laser radiation 显示文摘 | Craxton S R Jacobs D S Rizzo E J | 1981 | IEEE J Quantum Electron1981，17，9： | 1 |
| 15 | Study of saturation phenomena on asynchronous generators used in wind farms显示文摘 | Piegari L Rizzo R | 2004 | IEEE International Symposium on Industrial Electronics2004，2，： | 1 |
| 16 | HLA-G expression in early embryos is a fundamental prerequisite for the obtainment of pregnancy 显示文摘 | Fuzzi B Rizzo R Criscuoli L | 2002 | Eur J Immunol2002，32，2： | 1 |
| 17 | Role Conflict and Ambiguity in Complex Organizations 显示文摘 | Rizzo J R House R J Lirlzmon S I | 1970 | Administrative Science Quarterly1970，15，： | 1 |
| 18 | A framework for sign language sentence recognition by commonsense context 显示文摘 | lnfantino I Rizzo R Gaglio S | 2007 | IEEE Transactions on Systems Man and Cybernetics: C2007，37，5： | 1 |
| 19 | Role Conflict and Ambiguity in Complex Organizations 显示文摘 | RIZZO J R HOUSE R J LIRTZMAN S I | 1970 | Administrative Science Quarterly1970，15，2： | 1 |
| 20 | Role Conflict and Ambiguity in Complex Organizations显示文摘 | Rizzo J R House R J Lirtzman S I | 1970 | Ad- ministrative Science Quarterly1970，15，2： | 1 |
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