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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 | Sphingosine 1 phosphate is a key regulator of proliferation and differentia tion in retina photoreceptors显示文摘 | Miranda G E Abrahan C E Politi L E | 2009 | Invest OphthaLmoL Vis Sci2009，50，9： | 1 |
| 3 | Customer satisfaction measurement in the private bank sector显示文摘 | Mihelis G Grigoroudis E Siskos Y Politis Y Malandrakis Y | 2001 | European Journal of Operational Research2001，2，130： | 1 |
| 4 | Sea Urchin Spine Calcite Forms via a Transient Amorphous Calcium Carbonate Phase显示文摘 | Politi Y Arad T Klein E | 2004 | Science2004，306，5699： | 1 |
| 5 | The use of costochondral grafts in arthroplasty of the temporomandibular joint 显示文摘 | Politis C Fossion E Bossuyt M | 1987 | J Craniomaxillofac Surg1987，15，6： | 1 |
| 6 | Immunocytochemical panel for distinguishing between carcinoma and reactive mesothelial cells in body cavity fluids 显示文摘 | Politi E Kandaraki C Apostlolopoulou C | 2005 | Diagn Cytopathol2005，32，3： | 1 |
| 7 | Aeroelastic stability of wind turbines: the problem, the methods and the issues 显示文摘 | Riziotis V A Voutsinas S G Politis E S | 2004 | Wind Energy2004，7，： | 1 |
| 8 | Magnetic-resonancebased tracking and quantification of intravenously injected neural cell accumulation in the brains of mice with experimental mutiple sclerosis显示文摘 | Politi LS Bacigaluppi M Brambilla E | | 0，，10： | 1 |
| 9 | Prognostic significance of erythropoietin expression in human renal cell carcinoma显示文摘 | Michael A Politi E Havranek E | | 0，，： | 1 |
| 10 | Prognostic significance of erythropoietin expression in human renal cell carcinoma显示文摘 | Michael A Politi E Havranek E | 2007 | BJU Int2007，100，2： | 1 |
| 11 | Enhancing the damping of wind turbine rotor blades, the DAMBLADE Project显示文摘 | Chaviaropoulos P K Politis E S Lekou D J | 2006 | Wind Energy2006，9，： | 1 |
| 12 | Magnetic resonance--based tracking and quantification of intravenously injected neural stem cell accumulation in the brains of mice with experimental multiple sclerosis显示文摘 | Politi LS Baciguluppi M Brambilla E | 2007 | Stem Cells2007，25，： | 1 |
| 13 | Issue brief cent medicare edue显示文摘 | Politi E | 2002 | Med TRIC2002，，3： | 1 |
| 14 | Advanced giant cell reparative granuloma of the mandible:radiological features and surgical treatment显示文摘 | De Corso E Politi M Marchese MR | 2006 | Acta Otorhinolaryngol Ital2006，26，3： | 1 |
| 15 | Propofol use in head-injury patients 显示文摘 | Politis P Zakynthinos E Kotanidou A | 2001 | Lancet2001，357，： | 1 |
| 16 | Modelling the flow around airfoils equipped with vortex generators using a modified 2D Navier-Stokes solver显示文摘 | G NIKOLAOU E S POLITIS P K CHAVIAROPOULOS | 2005 | Journal of Solar Energy Engineering2005，127，： | 1 |
| 17 | Customer satisfaction measurement in the private bank sector 显示文摘 | Mihelis G Grigoroudis E Siskos Y Politis Y Malandrakis Y | 2001 | European Journal of Operational Research2001，2，130： | 1 |
| 18 | Magnetic-resonance-based tracking and quantification of intravenously injected neural stem cell accumulation in the brains of mice with experimental multiple sclerosis显示文摘 | Politi LS Bacigaluppi M Brambilla E | 2007 | Stem Cells2007，25，10： | 1 |
| 19 | Immunoeytochemical panel for distinguishing between carcinoma and reactive mesothelial cells in body cavity fluids 显示文摘 | Politi E Kandaraki C Apostolopoulou C | 2005 | Diagn Cytopathol2005，32，3： | 1 |
| 20 | Magnetic reso- nance-based tracking and quantification of intravenously in- jected neural stem cell accumulation in the brains of mice with experimental multiple sclerosis 显示文摘 | Politi LS Bacigaluppi M Brambilla E | 2007 | Stem Cells2007，25，： | 1 |
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