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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 | Postoperative enteral versus parenteral nutrition 显示文摘 | Pacelli F Bossola M Papa V L | 2002 | Lancet2002，359，9318： | 1 |
| 3 | C-reactive protein in ischemic stroke: an independent prognostic factor 显示文摘 | Di Napeli M Papa F Bocola V | 2001 | Stroke2001，32，4： | 1 |
| 4 | C-reactive protein in is chemic stroke an independent prognostic factot显示文摘 | Di Napoli M Papa F Bocola V | 2001 | Stroke2001，32，： | 1 |
| 5 | Hyperhomocystein enhances vascular inflammation and accelerates atherosclerosis in a murine model 显示文摘 | Hofmann MA Papa F Bocola V | 2001 | J Clin Invest2001，107，： | 1 |
| 6 | Giang retroperitoneal sarcomas:a single institution experience显示文摘 | Doglietto G B Tortorelli A P Papa V | | 0，，： | 1 |
| 7 | C-reactive protein in ischemic stroke:an independent prognostic factor显示文摘 | Dinapoli M Papa F Bocola V | 2001 | Stroke2001，32，4： | 1 |
| 8 | Biodegradable polymers from organic acids by using activated sludge enriched by aerobic periodic feeding显示文摘 | Dionisi D Majone M Papa V | 2004 | Biotechnology and Bioengineering2004，85，6： | 1 |
| 9 | C-reactive protein in ischemic stroke :an independent prognostic factor显示文摘 | Di Napoli M Papa F Bocola V | 2001 | Stroke2001，32，： | 1 |
| 10 | Proximal compared with distal gastric cancer: multivariate analysis of prognostic factors 显示文摘 | Pacelli F Papa V Caprino P | 2001 | Am Surg2001，67，7： | 1 |
| 11 | Nasojejunal tube placement after total gastreetomy: a multicenter prospective ran- domized trial显示文摘 | Doglietto GB Papa V Tortorelli AP | 2004 | Arch Surg2004，139，12： | 1 |
| 12 | C-reactive protein in ischemic stroke: an independent prognostic factor显示文摘 | DINAPOLI M PAPA F BOCOLA V | 2001 | Stroke2001，32，4： | 1 |
| 13 | C-reactive protein in ischemic stroke: an independent prognostic factor 显示文摘 | Di Napoli M Papa F Bocola V | 2001 | Stroke2001，32，7： | 1 |
| 14 | Nasojejunal tube placement after total gastrectomy: a multicenter prospective randomized trial显示文摘 | Doglietto GB Papa V Tortorelli AP | 2004 | Arch Surg2004，139，12： | 1 |
| 15 | Four hundred consecutive total gastrectomies for gastric cancer: a single-institution experi- ence显示文摘 | PACELL1 F PAPA V ROSA F | 2008 | Arch Surg2008，143，8： | 1 |
| 16 | Proapoptotic activity and chemosensitizing effect of the novel Akt inhibitor perifosine in acute myelogenous leukemia cells显示文摘 | Papa V Tazzari PL Chiarini F | | 0，，1： | 1 |
| 17 | C-reactive protein in ishemic stroke an independent prognostic factor 显示文摘 | Di-Napoli M Papa F Bocola V | 2001 | Stroke2001，32，1： | 1 |
| 18 | C-reactive protein in ischemic stroke:An independent prognostic factor显示文摘 | Di Napoli M Papa F Bocola V | 2001 | Stroke2001，32，4： | 1 |
| 19 | C - reactive protein in ischemic stroke: an independent prognostic factor显示文摘 | Dinapoli M Papa F Bocola V | 2001 | Stroke2001，32，4： | 1 |
| 20 | C-reactive protein in ischemicstroke:an independent prognostic factor显示文摘 | Di-Napoli M Papa F Bocola V | 2001 | Stroke2001，32，4： | 1 |
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