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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 | Is three-dimensional power Doppler ultrasound useful in the assessment of placental perfusion in normal and growth-restricted pregnancies? 显示文摘 | Guiot C Gaglioti P Oberto M | 2008 | Ultrasound Ob- stet Gynecol2008，31，2： | 1 |
| 3 | Reconstruction of Holocene precipitation patterns in Europe using pollen and lake-level data 显示文摘 | Guiot J Harrison S P Prentice I C | 1993 | Quaternary Research1993，40，2： | 1 |
| 4 | Temperature monitoring using ultrasound contrast agents: In vitro investigation on thermal stability 显示文摘 | GUIOT C CAVALLI R GAGLIOTI P | 2004 | Ultrasonics2004，42，： | 1 |
| 5 | Is three-dimensional powerDoppler ultrasound useful in the assessment of placentalperfusion in normal and growth-restricted pregnancies显示文摘 | Guiot C Gaglioti P Oberto M | 2008 | Ultrasound Obstet Gynecol2008，31，2： | 1 |
| 6 | Scaling, growth and cyclicity in biology : A new computational approach 显示文摘 | DELSANTO P P GLIOZZI A S GUIOT C | 2008 | Theor Biol Med Model2008，29，5： | 1 |
| 7 | Impact of mechani- cal, chemical and enzymatic pre-treatments on the methane yield from the anaerobie digestion of switchgrass 显示文摘 | FRIGON J C MEHTA P GUIOT S R | 2012 | Bio- mass amt Bioenergy2012，36，： | 1 |
| 8 | Does tumor growth follow a 'universal law'?显示文摘 | Guiot C P Degiorgis G Delsanto P P | 2003 | J Theor Biol2003，225，： | 1 |
| 9 | Impact of mechanical chemical and enzymatic pretreatments on the methane yield from the anaerobic digestion of switchgrass显示文摘 | FRIGO J C MEHTA P GUIOT S R | 2012 | Biomass and Bioenergy2012，36，： | 1 |
| 10 | Impact of mechanical, chem- ical and enzymatic pre - treatments on the methane yield from the anaerobic digestion of switchgrass 显示文摘 | Frigon J - C Mehta P Guiot S R | 2012 | Biomass and Bioen- ergy2012，36，： | 1 |
| 11 | Is three-dimensional power Doppler ultrasound useful in the assessment of placental perfusion in normal and growth-restricted pregnancies显示文摘 | Guiot C Gaglioti P Oberto M | | 0，，： | 1 |
| 12 | Is three-dimensional power Doppler ultrasound useful in the assessment of placental perfusion in non'aM and growth-restrlcted pregnancies? 显示文摘 | Guiot C Gaglioti P Oberto M | 2008 | Ultrasound Obstet Gynecol2008，31，2： | 1 |
| 13 | Is three-dimensional power doppler ultrasound useful in the assessment of placen- tal perfusion in normal and growth-restricted pregnancies显示文摘 | Guiot C Gaglioti P Oberto M | 2008 | Ultrasound Obstet Gynecol2008，31，5： | 1 |
| 14 | Is three - dimensional Power Doppler ultrasound useful in the assessment of placental perfusion in normal and growthrestricted pregnancies? 显示文摘 | Guiot C Gaglioti P Oberto M | 2008 | Ultrasound Obstet Gy- necol2008，31，2： | 1 |
| 15 | Misure di deposizione di potenza nell'ipertermia oncologia con microonde e influenza del bolus dinamico nella pratica clinica显示文摘 | Marini P Guiot C Baiotto B | 2001 | [Measures of specific absorption rate (SAR) in microwave hyperthermia oncology and the influence of the dynamic bolus on clinical practice] Radiol-Med-(Torino)2001，102，3： | 1 |
| 16 | Impact of mechanical,chemical and enzymatic pre-treatments on the methane yield from the anaerobic digestion of switchgrass显示文摘 | Frigon J C Mehta P Guiot S R | | 0，，： | 1 |
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