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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 | The symptomatic empty sella: prevention and correction via the transsphenoidal approach 显示文摘 | Olson DR Guiot G Derome P | 1972 | J Neurosurg1972，37，： | 1 |
| 3 | A minimally invasive technique for decompression of the lumbar spine显示文摘 | Khoo T Fessler G | 2002 | Spine2002，27，4： | 1 |
| 4 | One nouvelle technique endoscopique explorations endoscopiques in transcraniennes显示文摘 | Guiot G Rougerie J Fourestiel A | 1963 | Lapress Medicale1963，71，： | 1 |
| 5 | Aminimally in- vasive technique for decompression of the lumbar spine 显示文摘 | GUIOT B H KHOO L T FESSLER R G | 2002 | Spine2002，27，4： | 1 |
| 6 | Compelx atlantoaxail fractures显示文摘 | GUIOT B FESSLER R G | 1999 | J Neurosurgey1999，21，： | 1 |
| 7 | One nouvelle technique endoscopique explorations endoscopiques in transcraniennes显示文摘 | Guiot G Rongeie J Fourestiel A | 1963 | La press Medicale1963，71，： | 1 |
| 8 | Intrasellar gangliocytomas: Report of four cases显示文摘 | Jakumeit HD Zimmermann V Guiot G | 1974 | J Neurosurg1974，40，： | 1 |
| 9 | Hypophysectomy by transsphenoidal route显示文摘 | Guiot G Bouche J Hertzog E | | 0，，： | 1 |
| 10 | One nouvelle technique endoscopique explorations endoscopiques in transcraniennes 显示文摘 | GUIOT G ROUGERIE J FOURESTIAL A | 1963 | Press Med1963，71，： | 1 |
| 11 | Explorations endoscopiques intracrannienes 显示文摘 | Guiot G Rougerie J Fourestier M | 1963 | Press Med1963，71，： | 1 |
| 12 | 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 |
| 13 | Facebook Activity: Residents and Fellows and Its Impact on the Doctor-Patient Rel1 tionship显示文摘 | Moubarak G Guiot A Benhamou Y | 2011 | Journal of Medical Ethics2011，37，2： | 1 |
| 14 | Intracranial endoscoopic explorations显示文摘 | Guiot G Rougerie J Fourestier M | 1963 | Press Med1963，71，： | 1 |
| 15 | Molecular biology of degenerative disc disease 显示文摘 | Guiot B H Fessler R G | 2000 | Neurosurgery2000，47，5： | 1 |
| 16 | Une nouvelle techuique endoscopique:Exploration endscopiques intracranienne presse显示文摘 | GuioT G Rougerie J Fourostler A | 1963 | Med1963，71，： | 1 |
| 17 | Aminimally invasive technique for decompression of the lumbar spine显示文摘 | Fessler R G Guiot B H Khoo L T | 2002 | Spine2002，27，4： | 1 |
| 18 | A simple and low cost technique for determining the granulometry of upfiow anaerobic sludge blanket reactor sludge显示文摘 | LAGUNA A OUATTRA A GONZALEZ R O BARON O FAMA G I MAMOUNI R GUIOT S MONROY O MACARIE H | 1999 | Water Science Technology1999，40，8： | 1 |
| 19 | lntracranial endoscopic explorations显示文摘 | Guiot G Rougerie J Fourestler M | 1963 | Presse Med1963，71，： | 1 |
| 20 | Cranio-naso-orbito-facial osteotomies hypertelorisme显示文摘 | Tessier P Guiot G Rougerie J | 1967 | Ann Chir Plast1967，12，2： | 1 |
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