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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 | A single amino acid is critical for the expression of B-cell epitopes on the helicase domain of the pestivirus NS3 protein显示文摘 | Brown L M Papa R A Frost M J | 2002 | Virus Research2002，84，： | 1 |
| 3 | Respiratory syncytial virus infection in hospitalized children older than 2years withcommunity-acquired pneumonia显示文摘 | Almasri M Papa A Souliou E | 2013 | Hippokratia2013，17，2： | 1 |
| 4 | Total assignment of ^1H and ^13 C-NMR spectra of two isomeric cucurbltane triterpenoids显示文摘 | Monte F J Q Papa S M A Kintzinger J P | 2000 | Magn Reson Chem2000，38，9： | 1 |
| 5 | 9 Ga, continental margin, back-arc, felsic caldera province with diverse Zn-Pb-Ag-(Cu-Au) sulfide and Fe oxide deposits, Bergslagen re- gion, Sweden显示文摘 | Allen R L Lundstrom I PApa M et aL Facies analysis of a 1 | 1996 | Economic Geology1996，91，6： | 1 |
| 6 | Predietive value of ele- vated neutrophil lymphocyte ratio on cardiac mortality in patients with stable coronary artery disease 显示文摘 | Papa A Emdin M Passino C | 2008 | Clin Chim Aeta2008，395，12： | 1 |
| 7 | Use of the Bayley Infant Neurodevelopmental Screenex with an environmental risk group显示文摘 | HESS C R PAPAS M A BLACK M M | 2004 | Pediatr Psychol2004，，5： | 1 |
| 8 | The translationally controlled tumor protein is a novel calcium binding protein of the human placenta and regulates calcium handling in trophoblast cells显示文摘 | Arcuri F Papa S Meini A Carducci A Romagnoli R Bianchi L Riparbelli M G Sanchez J C Palmi M Tosi P Cintorino M | 2005 | Biol Reprod2005，73，4： | 1 |
| 9 | Use of infliximab in particular clinical settings:management based on current evidence显示文摘 | Papa A Mocci G Bonizzi M | 2009 | Am J Gastroenterol2009，104，6： | 1 |
| 10 | Cancer-associated PTEN mutants act in a dominant-negative manner to suppress PTEN protein function 显示文摘 | Papa A Wan L Bonora M | 2014 | Cell2014，157，3： | 1 |
| 11 | Effects of rumen-protected methionine on plasma free amino acid and production by dairy cows显示文摘 | Papas A M | 1984 | J Nutri1984，114，： | 1 |
| 12 | Maternal symptoms of stress, depression, and anxiety are related to nonresponsive feeding styles in a statewide sample of WIC participants 显示文摘 | Hurley K M Black M M Papas M A | 2008 | J Nu- tr2008，138，4： | 1 |
| 13 | Self reposed changes in nurse manager proficiency resulting from participation in the Rising Star Leadership Program显示文摘 | Burns M Papa A | 2008 | Pa Nurse2008，63，4： | 1 |
| 14 | Laboratory diagnosis of Mycoplasma pneunumiae respiratory tract infections in children 显示文摘 | Souliou E Almasri M Papa A | 2007 | Eur J Clin Microbiol Infect Dis2007，26，7： | 1 |
| 15 | Efficient supervised optimum-path forest classification for large datasets显示文摘 | J P Papa A X Falc o V H C de Albuquerque J M R S Tavares | 2012 | Pattern Recognition2012，45，1： | 1 |
| 16 | Determinants of antioxidant status in humans显示文摘 | Papas A M | 1996 | J Lipids1996，31，： | 1 |
| 17 | Laboratory diagnosis of Mycoplasma pneumoniae respiratory tract infections in children显示文摘 | Soutiou E Almasri M Papa A | 2007 | Eur J Clin Microbiol Infect Dis2007，26，： | 1 |
| 18 | Laboratory diagno-sis of Mycoplasma pneumoniae respiratory tract infectionsin children显示文摘 | Souliou E Almasri M Papa A | 2007 | Eur J Clin Microbiol Infect Dis2007，26，7： | 1 |
| 19 | Epidemiology of aphasia attri--butable to first is chemicstroke incidence,severity,fluency, etiology,and thmmbolysis显示文摘 | Engelter ST Gostynski M Papa S et a/ | 2006 | Stroke2006，37，6： | 1 |
| 20 | Production response of dairy cowsfed various amounts of nunen protected methionione and lysine显示文摘 | Rogers J A Perice-Sandner S B Papas A M | 1989 | J Dairy Sei1989，72，： | 1 |
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