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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 | Estrogen binding sites in peripheral biood mononuclear cells and thymocytes from 2 myasthenia gavis patients显示文摘 | Carbone A Piantelli M Musiani P | 1986 | Clin Lab Immunol1986，21，： | 1 |
| 3 | Quercetin and tamoxifen sensitize humanmelanoma cells to hyperthermia 显示文摘 | Piantelli M Tatone D Castrilli G | 2001 | Melanoma Res2001，11，5： | 1 |
| 4 | Quercetin and Tamoxifen sensitize human Melanoma cells to hypertheramia 显示文摘 | Piantelli M Tatone D Castrilli G | 2001 | Melanoma Res2001，11，5： | 1 |
| 5 | Echinococcus granu- losus: specific quantification of the two most immunoreactive antigens in hydatid fluids显示文摘 | Musiani P Piantelli M Lauriola L | 1978 | J Clin Pathol1978，31，5： | 1 |
| 6 | Estrogen binding sites in peripheral blood mononuclear cells and thymocytes from 2 myasthenia gravis patients显示文摘 | Piantelli M Musiani P | 1986 | J Clin Lab Immunol1986，21，： | 1 |
| 7 | Type Ⅱ estrogen binding sites and antiproliferative activity of quercetin in human meningiomas显示文摘 | Piantelli M RineUi A Macrl E | 1993 | Cancer1993，71，1： | 1 |
| 8 | Estrogen binding sites in peripheral blood mononuclear cells and thymocytes from 2 myasthenia gravis patients显示文摘 | Piantelli M Musiani P | 1986 | J Clin Lab Immunol1986，21，2： | 1 |
| 9 | Tamoxifen and Quercetin Interact with Type Ⅱ Estrogen Binding Sites and Inhibit the Growth of Human Melanoma Cells 显示文摘 | Piantelli M Maggiano N Ricci R | 1995 | J Invest Dermatol1995，105，： | 1 |
| 10 | Estrogen and progesterone receptors in the gallbladders from patients with gallstones 显示文摘 | Ranelletti FO Piantelli M Farinon AM | 1991 | Hepatology1991，14，41： | 1 |
| 11 | Flavonoids inhibit melanoma lung metastasis by impairing tumor cells endothelium interactions 显示文摘 | Piantelli M Rossi C Iezzi M | 2006 | J Cell Physiol2006，207，1： | 1 |
| 12 | Quercetin and Tamoxifen Sensitize Human Melanoma Cells to Hyperthermia 显示文摘 | Piantelli M Tatone D Castrilli G | 2001 | Melanoma Res2001，11，5： | 1 |
| 13 | Type IT estrogen binding sites and antiproliferative activity of quercetin in human meningiomas 显示文摘 | Piantelli M Rinelli A Maed E et a1 | 1993 | Cancelr1993，71，1： | 1 |
| 14 | Tamoxifen and quercetin interact with type Ⅱ estrogen binding sites and inhibit the growth of human melanoma cells显示文摘 | Piantelli M Maggiano N Ricci R | 1995 | Invest Dematol1995，105，2： | 1 |
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