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117 results on '"I. Skwira"'

101. Fusion-Evaporation Cross Sections in Reactions Leading to Production of Super-Heavy Nuclei

Author

J. Wilczynski, I. Skwira‐Chalot, and K. Siwek‐Wilczyńska

Subjects
Nuclear physics, Fusion, Fission, Chemistry, Nuclear Theory, Monte Carlo method, Evaporation, Shell (structure), Particle, Atomic physics, Nuclear Experiment
Abstract

Fusion‐evaporation cross sections were calculated for the 48Ca+204–208Pb and 50Ti+206,208Pb reactions and compared with the existing experimental data of the Dubna and GSI groups. The survival probabilities of the compound Z = 102 and Z = 104 nuclei formed in these reactions were calculated using a Monte Carlo program based on the conventional Bohr‐Wheeler theory of fission and statistical model of particle evaporation with Reisdorf‐Ignatyuk prescription for the level densities and Strutinsky shell corrections of Moller et al. “Empirical” magnitudes of the dynamical hindrance of fusion have been deduced for these reactions.

Published
2006

102. Tests of the fission-evaporation competition in the deexcitation of heavy nuclei

Author

I. Skwira, K. Siwek-Wilczyńska, and J. Wilczynski

Subjects
Physics, Nuclear and High Energy Physics, Fission, Shell (structure), Order (ring theory), Nuclear fusion, Neutron, Atomic physics, Nuclear Experiment, Ground state, Excitation, Cold fusion
Abstract

In order to verify methods of calculating the fission-evaporation competition in reactions used to synthesize new super-heavy nuclei in 'cold' (1n) and 'hot' (3n,4n) fusion reactions, we present an analysis of existing experimental data on the evaporation-residue cross sections in two selected reactions, {sup 208}Pb({sup 16}O, xn) and {sup 236}U({sup 12}C, xn), for which complementary experimental information necessary to unambiguously calculate the survival probabilities is available: precisely measured fusion excitation functions and saddle-point energies of the fissioning nuclei, deduced from experiments. Standard statistical model calculations, with shell effects accounted for by the Ignatyuk formula, were carried out assuming the ground state shell corrections of Moeller et al., and zero shell correction at the saddle configuration (resulting from the presented systematics). Good agreement of the calculated evaporation-residue cross sections with experimental data for different xn reaction channels at low excitation energies leaves no room for modifications of the conventional way of calculating the {gamma}{sub n}/{gamma}{sub f} ratio, particularly for including into this ratio an additional preexponential factor (such as the Kramers fission hindrance factor or an effective collective factor) significantly different from 1.

Published
2005

103. Dynamical fission inSn124+Ni64collision at 35AMeV

Author

G. Lanzalone, M. Iacono-Manno, G. Lanzano, K. Siwek-Wilczyńska, G. Vannini, R. Dayras, S. Russo, Zhigang Xiao, F. Rizzo, S. Pirrone, E. De Filippo, D. Guinet, A. Anzalone, J.P. Wieleczko, S. Cavallaro, H. Wu, M. Trimarchi, M.F. Rivet, Lucrezia Auditore, M. Bruno, Ł. Świderski, M. L. Sperduto, Antonio Trifiro, I. Skwira, P. Russotto, R. Bougault, E. Geraci, G. Politi, J. Brzychczyk, J. Wilczynski, A. Grzeszczuk, Elio Rosato, Amalia Pop, M. Papa, J. Blicharska, Mariano Vigilante, M. D'Agostino, M. Di Toro, L. Zetta, Z. Majka, K. Schmidt, V. Baran, A. Pagano, P. Guazzoni, I. Berceanu, B. Borderie, S. Lo Nigro, F. Porto, R. Płaneta, Maria Colonna, M. B. Chatterjee, M. Sassi, J.C. Steckmeyer, J.D. Frankland, F. Giustolisi, E. Piasecki, S. Kowalski, Mihai Petrovici, E. Galichet, W. Gawlikowicz, C. Maiolino, G. Cardella, Aldo Bonasera, F. Amorini, S. M. Li, A. Chbihi, W. Zipper, N. Le Neindre, and E. La Guidara

Subjects
Physics, Nuclear and High Energy Physics, Cluster decay, 010308 nuclear & particles physics, Fission, Nuclear Theory, 0103 physical sciences, Non-equilibrium thermodynamics, Charge (physics), Atomic physics, Nuclear Experiment, 010306 general physics, 01 natural sciences
Abstract

Some properties of fast, nonequilibrium splitting of projectiles in the $^{124}\mathrm{Sn}+^{64}\mathrm{Ni}$ reaction at 35A MeV were determined using the $4\ensuremath{\pi}$ CHIMERA detector system. In particular the charge distributions, in- and out-of-plane angular distributions, and relative velocities of projectilelike fragments were measured. The time scale of the process was estimated and it turned out that the process is sequential but much faster than the ordinary, equilibrated fission.

Published
2005

104. Experimental Investigation of the Few-Nucleon Dynamics in Deuteron-Deuteron Collision at 160 MeV

Author

I. Skwira-Chalot, Indranil Mazumdar, St. Kistryn, G. Khatri, E. Stephan, Jacek Zejma, Wiktor Parol, Izabela Ciepał, A. Magiera, J. G. Messchendorp, Kazimierz Bodek, B. Kłos, A. Kozela, N. Kalantar-Nayestanaki, Dagmara Rozpȩdzik, and Aleksandra Wrońska

Subjects
Elastic scattering, Physics, 010308 nuclear & particles physics, QC1-999, Detector, Collision, 01 natural sciences, 7. Clean energy, lcsh:QC1-999, similarity renormalization, Nuclear physics, Deuterium, bodies, nuclei, 0103 physical sciences, 010306 general physics, Nucleon, lcsh:Physics
Abstract

An experiment, with unpolarized deuteron beam of 160 MeV impinging on liquid deuterium target, was carried out using BINA detector at KVI, in Groningen, the Netherlands. Data were collected for the purpose of obtaining high precision differential cross-section for the deuteron break-up reaction. The elastic scattering data were also collected alongside for the purpose of cross-section normalization. We present here a sample of the un-normalised cross-section for the three-body final state $\left ( dd\rightarrow dpn \right )$ reaction.

Published
2014

105. Detection and identification of large fragments from the partitioning of the 197Au + 197Au system at 23A MeV

Author

I. Skwira‐Chalot, T. Cap, J. Wilczynski, and K. Siwek-Wilczyńska

Subjects
Physics, Silicon, Detector, chemistry.chemical_element, Condensed Matter Physics, Breakup, Molecular physics, Atomic and Molecular Physics, and Optics, Preliminary analysis, Nuclear physics, chemistry, Heavy ion, Nuclear Experiment, Mathematical Physics
Abstract

First results of a study of partitioning of the nonfusing 197Au + 197Au system at an energy of 23A MeV are reported. A variety of light, medium and heavy fragments were detected and identified by using the 4π multidetector system CHIMERA (Charged Heavy Ion Mass and Energy Resolving Array). A new method of identification of low-energy fragments stopped in the silicon detectors, based on a precise time-of-flight analysis, is proposed. The method has been applied in a preliminary analysis of the 197Au + 197Au partitioning processes leading to the neck emission of intermediate mass fragments and sequential breakup of projectile-like or target-like fragments.

Published
2013

106. Three- and Four-nucleon Dynamics at Intermediate Energies

Author

Izabela Ciepał, Indranil Mazumdar, J. G. Messchendorp, D. Rozpedzik, B. Kłos, A. Kozela, Nasser Kalantar-Nayestanaki, E. Stephan, I. Skwira-Chalot, Wiktor Parol, St. Kistryn, Jacek Zejma, Kazimierz Bodek, Aleksandra Wrońska, G. Khatri, and A. Magiera

Subjects
Physics, Nuclear physics, Elastic scattering, Normalization (statistics), Deuterium, Detector, General Physics and Astronomy, Nuclear Experiment, Nucleon, Beam (structure)
Abstract

I. Skwira-Chalot Faculty of Physics, University of Warsaw, Hoza 69, 00-681 Warszawa, Poland (Received August 6, 2013) An experiment, with unpolarized deuteron beam of 160 MeV impinging on liquid hydrogen and liquid deuterium targets, was carried out using BINA detector at KVI in Groningen, the Netherlands. Data were collected for the purpose of obtaining high precision differential cross sections of break-up channels in dp and dd collisions. The elastic scattering data were also collected alongside for the purpose of cross-section normalization. A brief description of the experiment and the data analysis as well as some preliminary results are presented.

Published
2013

107. NEUTRON ENRICHMENT OF THE NECK-ORIGINATED INTERMEDIATE MASS FRAGMENTS IN PREDICTIONS OF THE QMD MODEL

Author

K. Siwek-Wilczyńska, I. Skwira-Chalot, T. Cap, and J. Wilczyński

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Equation of state, Isotope, media_common.quotation_subject, Nuclear Theory, General Physics and Astronomy, Observable, Asymmetry, Symmetry (physics), Nuclear physics, Neutron, Atomic physics, Nuclear Experiment, Nucleon, media_common
Abstract

The effect of neutron enrichment of the neck formed during reseparation of two colliding nuclei was studied with the aim to infer an information on the density dependence of the asymmetry energy term in the equation of state. By using a version of the QMD model of Łukasik it is shown that the neutrons-to-protons ratio of the intermediate mass fragments (IMF) emitted from the neck, 〈N/Z〉, is not a sufficiently sensitive observable to discriminate between different assumptions regarding the symmetry term of the equation of state. As an alternative, isotopic ratios of selected pairs of isotopes turned out to be useful observables more sensitive to the assumed form of the symmetry term of the equation of state. A comparison with experimental data on isotopic ratios for beryllium and boron IMFs from the 124 Sn + 64 Ni reaction at 35 MeV/nucleon tentatively suggests that the ASY-SOFT option of the symmetry energy term in EOS is preferred.

Published
2012

108. How to calibrate the time scale of emission of intermediate mass fragments

Author

Wilczynski, J, DE FILIPPO, E, Pagano, A, Amorini, F, Anzalone, A, Auditore, Lucrezia, Baran, V, Berceanu, I, Blicharska, J, Brzychczyk, J, Bonasera, A, Borderie, B, Bogault, R, Bruno, M, Cardella, G, Cavallaro, S, Chatterjee, Mb, Chbihi, A, Cibor, J, Colonna, M, D'Agostino, M, Dayras, R, DI TORO, M, Frankland, J, Galichet, E, Gawlikowicz, W, Geraci, E, Giustolisi, F, Grzeszczuk, A, Guazzoni, P, Guinet, D, IACONO MANNO, M, Kowalski, S, LA GUIDARA, E, Lanzano, G, Lanzalone, G, LE NEINDRE, N, Li, S, Maiolino, C, Majka, Z, Papa, M, Petrovici, M, Piasecki, E, Pirrone, S, Planeta, R, Politi, G, Pop, A, Porto, F, Rivet, Mf, Rosato, E, Rizzo, F, Russo, S, Russotto, P, Sassi, M, Schmidt, K, SIWEK WILCZYNSKA, K, Skwira, I, Sperduto, Ml, Swiderski, L, Trifiro', Antonio, Trimarchi, Marina, Vannini, G, Vigilante, M, Wieleczko, Jp, Wu, H, Xiao, Z, Zetta, L, Zipper, W., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CHIMERA, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), J. WILCZYNSKI, E. DE FILIPPO, A. PAGANO, F. AMORINI, A. ANZALONE, L. AUDITORE, V. BARAN, I. BERCEANU, J. BLICHARSKA, J. BRZYCHCZYK, A. BONASERA, B. BORDERIE, R. BOGAULT, M. BRUNO, G. CARDELLA, S. CAVALLARO, M.B. CHATTERJEE, A. CHBIHI, J. CIBOR, M. COLONNA, M. D'AGOSTINO, R. DAYRAS, M. DI TORO, J. FRANKLAND, E. GALICHET, W. GAWLIKOWICZ, E. GERACI, F. GIUSTOLISI, A. GRZESZCZUK, P. GUAZZONI, D. GUINET, M. IACONO-MANNO, S. KOWALSKI, E. LA GUIDARA, G. LANZANO, G. LANZALONE, N. LE NEINDRE, S. LI, C. MAIOLINO, Z. MAJKA, M. PAPA, M. PETROVICI, E. PIASECKI, S. PIRRONE, R. P LANETA, G. POLITI, A. POP, F. PORTO, M.F. RIVET, E. ROSATO, F. RIZZO, S. RUSSO, P. RUSSOTTO, M. SASSI, K. SCHMIDT, K. SIWEK-WILCZYNSKA, I. SKWIRA, M.L. SPERDUTO, L. SWIDERSKI, A. TRIFIRO', M. TRIMARCHI, G. VANNINI, M. VIGILANTE, J.P. WIELECZKO, H. WU, Z. XIAO, L. ZETTA, W. ZIPPER, J., Wilczynski, E., De Filippo, A., Pagano, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, J., Blicharska, J., Brzychczyk, A., Bonasera, B., Borderie, R., Bougault, M., Bruno, G., Cardella, S., Cavallaro, M. B., Chatterjee, A., Chbihi, J., Cibor, M., Colonna, M., D'Agostino, R., Dayra, M., Di Toro, J. D., Frankland, E., Galichet, W., Gawlikowicz, E., Geraci, F., Giustolisi, A., Grzeszczuk, P., Guazzoni, D., Guinet, M., Iacono Manno, S., Kowalski, E., La Guidara, G., Lanzanò, G., Lanzalone, N., Le Neindre, S., Li, C., Maiolino, Z., Majka, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, R., Planeta, G., Politi, A., Pop, F., Porto, M. F., Rivet, F., Rizzo, Rosato, Elio, S., Russo, P., Russotto, M., Sassi, K., Schmidt, K., Siwek Wilczynska, I., Skwira, M. L., Sperduto, L., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, H., Wu, Z., Xiao, L., Zetta, and W., Zipper

Subjects
COLLISIONS, REAZIONI SEMI-PERIFERICHE, Nuclear and High Energy Physics, Scale (ratio), multifragmentation, Nuclear Theory, General Physics and Astronomy, Time sequence, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Settore FIS/04 - Fisica Nucleare e Subnucleare, Nuclear physics, 0103 physical sciences, 010306 general physics, Nuclear Experiment, emission time scale, REAZIONI NUCLEARI FRA IONI PESANTI, Physics, 010308 nuclear & particles physics, Settore FIS/01 - Fisica Sperimentale, FISSION, nucleus-nucleus collision, TEMPI DI EMISSIONE DEI FRAMMENTI, PRODUZIONE DI FRAMMENTI, CORRELAZIONI IN VELOCITA' RELATIVA, Nucleon
Abstract

In order to obtain information on the time sequence and time scale of the production of intermediate mass fragments (IMF) in nucleus-nucleus collisions at intermediate energies it is proposed to analyze correlations between relative velocities of IMF's with respect to projectile-like fragments (PLF) and target-like fragments (TLF). Experimental data on the production of IMF's in the 124Sn+64Ni reaction, taken with the CHIMERA multidetector array at 35 MeV/nucleon, have been analyzed with the proposed method. Read More: http://www.worldscientific.com/doi/abs/10.1142/S0218301305003119?prevSearch=%5BContrib%3A+rosato%5D&searchHistoryKey=

Published
2004

109. Strong enhancement of dynamical emission of heavy fragments in the neutron-rich 124Sn+64Ni reaction at 35A MeV

Author

Russotto, P., De Filippo, E., Pagano, A., Piasecki, E., Amorini, F., Anzalone, A., Auditore, Lucrezia, Baran, V., Berceanu, I., Blicharska, J., Borderie, B., Bougault, R., Bruno, M., Brzychczyk, J., Cardella, G., Cavallaro, S., Chatterjee, M. B., Chbihi, A., Colonna, M., D'Agostino, M., Dayras, R., Di Toro, M., Frankland, J., Galichet, E., Gawlikowicz, W., Geraci, Elena Irene, Giustolisi, F., Grzeszczuk, A., Guazzoni, P., Guinet, D., Kowalski, S., La Guidara, E., Lanzalone, G., Lanzano, G., Le Neindre, N., Maiolino, C., Majka, Z., Papa, M., Petrovici, M., Pirrone, S., Planeta, R., Politi, Giuseppe, Pop, A., Porto, F., Rivet, M. F., Rizzo, Francesca, Rosato, E., Schmidt, K., Siwek Wilczynska, K., Skwira Chalot, I., Trifiro, A., Trimarchi, M., Vigilante, M., Wieleczko, J. P., Wilczynski, J., Zetta, L., Zipper, W., Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), P. Russotto, E. De Filippo, A. Pagano, E. Piasecki, F. Amorini, A. Anzalone, L. Auditore, V. Baran, I. Berceanu, J. Blicharska, B. Borderie, R. Bougault, M. Bruno, J. Brzychczyk, G. Cardella, S. Cavallaro, M. B. Chatterjee, A. Chbihi, M. Colonna, M. D’Agostino, R. Dayra, M. Di Toro, J. Frankland, E. Galichet, W. Gawlikowicz, E. Geraci, F. Giustolisi, A. Grzeszczuk, P. Guazzoni, D. Guinet, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzanò, N. Le Neindre, C. Maiolino, Z. Majka, M. Papa, M. Petrovici, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, E. Rosato, K. Schmidt, K. Siwek-Wilczyńska, I. Skwira-Chalot, A. Trifirò, M. Trimarchi, M. Vigilante, J. P. Wieleczko, J. Wilczyński, L. Zetta, W. Zipper, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
HEAVY ION REACTIONS, 25.70.Mn, 25.70.Pq, 21.65.Mn, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

A quantitative comparison is made between the absolute cross sections associated with statistical and dynamical emission of heavy fragments in the 124Sn+64Ni and 112Sn+58Ni collisions experimentally investigated at 35A MeV beam energy using the multidetector CHIMERA. The result shows that the dynamical process is about twice as probable in the neutron-rich 124Sn+64Ni system as in the 112Sn+58Ni neutron-poor one. This unexpected and significant difference indicates that the reaction mechanism is strongly dependent on the entrance-channel isospin (N/Z) content.

Published
2010

110. Dynamical Signals in Fragmentation Reactions: Time Scale Determination from Three Fragments Correlations by Using the 4$\pi$ CHIMERA Multidetector

Author

Filippo, E., Amorini, F., Anzalone, A., Auditore, L., Baran, V., Berceanu, I., Blicharska, J., Borderie, B., Bougault, R., Bruno, M., Brzychczyk, J., Cardella, G., Cavallaro, S., Chatterjee, M. B., Chbihi, A., Colonna, M., D Agostino, M., Dayras, R., Di Toro, M., Emanuele, U., Frankland, J., Galichet, E., Gawlikowicz, W., Geraci, E., Giustolisi, F., Grassi, L., Grzeszczuk, A., Guazzoni, P., Guinet, D., Kowalski, S., La Guidara, E., Lanzalone, G., Lanzanò, G., Le Neindre, N., Lombardo, I., Maiolino, C., Majka, Z., Angelo Pagano, Papa, M., Petrovici, M., Piasecki, E., Pirrone, S., Płaneta, R., Politi, G., Pop, A., Porto, F., Rivet, M. F., Rosato, E., Rizzo, F., Russotto, P., Schmidt, K., Siwek-Wilczyńska, K., Skwira, I., Sochocka, A., Trifirò, A., Trimarchi, M., Verde, G., Vigilante, M., Wieleczko, J. P., Wilczyński, J., Zetta, L., Zipper, W., Lion, Michel, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CHIMERA, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), E., De Filippo, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, J., Blicharska, B., Borderie, R., Bougault, M., Bruno, J., Brzychczyk, G., Cardella, S., Cavallaro, M. B., Chatterjee, A., Chbihi, M., Colonna, M., D'Agostino, R., Dayra, M., Di Toro, U., Emanuele, J., Frankland, E., Galichet, W., Gawlikowicz, E., Geraci, F., Giustolisi, L., Grassi, A., Grzeszczuk, P., Guazzoni, D., Guinet, S., Kowalski, E., Laguidara, G., Lanzalone, G., Lanzanò, N., Le Neindre, I., Lombardo, C., Maiolino, Z., Majka, A., Pagano, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, R., Płaneta, G., Politi, A., Pop, F., Porto, M. F., Rivet1, Rosato, Elio, F., Rizzo, P., Russotto, K., Schmidt, K., Siwek Wilczyńska, I., Skwira, A., Sochocka, A., Trifirň, M., Trimarchi, G., Verde, Vigilante, Mariano, J. P., Wieleczko, J., Wilczyński, L., Zetta, and W., Zipper

Subjects
Reazioni nucleari, 25.70.Mn, 25.70.Pq, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], Astrophysics::High Energy Astrophysical Phenomena, scala dei tempi, multiframmentazione, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; For fragments emitted in the reactions 124Sn + 64Ni and 112Sn + 58Ni at 35 AMeV, isotopic composition and velocity correlations have been studied as a function of the centrality of the collision, using the 4\pi Chimera multidetector. We have investigated the time scale for fragments formation, in order to distinguish between prompt dynamical and sequential statistical emission. Promptly emitted light fragments (Z \leq 9) produced in the mid-rapidity domain are characterised by larger N/Z ratio and stronger angular anisotropies than those produced in sequential statistical emission. Results are compared with stochastic BNV code simulations obtained for primary fragments. Valuable information on the symmetry term of the nuclear equation of state at sub-saturation densities are obtained.

Published
2009

111. Dynamical signals in fragmentation reactions : Time scale determination from three fragments correlations by using the 4 [Pi] Chimera multidetector

Author

Filippo, E., Amorini, F., Anzalone, A., Auditore, L., Baran, V., Berceanu, I., Blicharska, J., Borderie, B., Bougault, R., Bruno, M., Brzychczyk, J., Cardella, G., Cavallaro, S., Chaterjee, M. B., Chbihi, A., Colonna, M., D Agostino, M., Dayras, R., Di Toro, M., Emanuele, U., Frankland, J., Galichet, E., Gawlikowicz, W., Geraci, E., Giustolisi, F., Grassi, L., Grzeszczuk, A., Guazzoni, P., Guinet, D., Seweryn Kowalski, La Guidara, E., Lanzalone, G., Lanzano, G., Le Neindre, N., Lombardo, I., Maiolino, C., Majka, Z., Pagano, A., Papa, M., Petrovici, M., Piasecki, E., Pirrone, S., Planeta, R., Politi, G., Pop, A., Porto, F., Rivet, M. F., Rosato, E., Rizzo, F., Russotto, P., Schmidt, K., Siwek-Wilczynska, K., Skwira, I., Sochocka, A., Trifiro, A., Trimarchi, M., Verde, G., Vigilante, M., Wieleczko, J. P., Wilczynski, J., Zetta, L., Zipper, W., E. De Filippo, F. Amorini, A. Anzalone, L. Auditore, V. Baran, I. Berceanu, J. Blicharska, B. Borderie, R. Bougault, M. Bruno, J. Brzychczyk, G. Cardella, S. Cavallaro, M.B. Chatterjee, A. Chbihi, M. Colonna, M. D'Agostino, R. Dayra, M. Di Toro, U. Emanuele, J. Frankland, E. Galichet, W. Gawlikowicz, E. Geraci, F. Giustolisi, L. Grassi, A. Grzeszczuk, P. Guazzoni, D. Guinet, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzanň, N. Le Neindre, I. Lombardo, C. Maiolino, Z. Majka, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, M.F. Rivet, E. Rosato, F. Rizzo, P. Russotto, K. Schmidt, K Siwek-Wilczyńska, I. Skwira, A. Sochocka, A. Trifirň, M. Trimarchi, G. Verde, M. Vigilante, J.P. Wieleczko, J. Wilczyński, L. Zetta, and W. Zipper

Subjects
HEAVY ION REACTIONS, Astrophysics::High Energy Astrophysical Phenomena, multidetektor, fragmentacja - reakcje jądrowe, Nuclear Experiment
Abstract

For fragments emitted in the reactions (124)Sn + (64)Ni and (112)Sn + (58)Ni at 35 A MeV, isotopic composition and velocity correlations have been studied as a function of the centrality of the collision, using the 4 pi Chimera multidetector. We have investigated the time scale for fragments formation, in order to distinguish between prompt dynamical and sequential statistical emission. Promptly emitted light fragments (Z

Published
2009

112. Centrality dependence of isospin effect signatures in $^{124}$Sn+$^{64}$Ni and $^{112}$Sn+$^{58}$Ni reactions

Author

Planeta, R, Amorini, F, Anzalone, A, Auditore, Lucrezia, Baran, V, Benisz, A, Berceanu, I, Bonasera, A, Borderie, B, Borgensztajn, J, Bougault, R, Bruno, M, Brzychczyk, J, Cardella, G, Cavallaro, S, Chatterjee, Mb, Chbihi, A, Colonna, M, D'Agostino, M, Dayras, R, DE FILIPPO, E, DI TORO, M, Frankland, J, Galichet, E, Gawlikowicz, W, Geraci, E, Giuliani, G, Giustolisi, F, Grzeszczuk, A, Guazzoni, P, Guinet, D, Kowalski, S, Krauze, M, LA GUIDARA, E, Lanzano, G, Lanzalone, G, LE NEINDRE, N, Lukasik, J, Maiolino, C, Majka, Z, Nicolis, Ng, Pagano, A, Papa, M, Petrovici, M, Piasecki, E, Pirrone, S, Politi, G, Pop, A, Porto, F, Rivet, Mf, Rosato, E, Rizzo, F, Russotto, P, Schmidt, K, SIWEK WILCZYNSKA, K, SKWIRA CHALOT, I, Sochocka, A, Swiderski, L, Trifiro', Antonio, Trimarchi, Marina, Vannini, G, Vigilanti, M, Wieleczko, Jp, Wilczynski, J, Zetta, L, Zipper, W., Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), ISOSPIN, R. Płaneta, F. Amorini, A. Anzalone, L. Auditore, V. Baran, A. Benisz, I. Berceanu, A. Bonasera, B. Borderie, J. Borgensztajn, R. Bougault, M. Bruno, J. Brzychczyk, G. Cardella, S. Cavallaro, M. B. Chatterjee, A. Chbihi, M. Colonna, M. D’Agostino, R. Dayra, E. De Filippo, M. Di Toro, J. Frankland, E. Galichet, W. Gawlikowicz, E. Geraci, G. Giuliani, F. Giustolisi, A. Grzeszczuk, P. Guazzoni, D. Guinet, S. Kowalski, M. Krauze, E. La Guidara, G. Lanzano, G. Lanzalone, N. Le Neindre, J. Łukasik, C. Maiolino, Z. Majka, N. G. Nicoli, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, G. Politi, A. Pop, F. Porto, M. F. Rivet, E. Rosato, F. Rizzo, P. Russotto, K. Schmidt, K. Siwek-Wilczynska, I. Skwira-Chalot, A. Sochocka, L. Swiderski, A. Trifiro, M. Trimarchi, G. Vannini, M. Vigilanti, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ISOSPIN EFFECTS, IMPACT PARAMETER, Nuclear Theory, MOLECULAR DYNAMICS, EXPERIMENT, 25.70.Lm, 25.70.Pq, HEAVY-ION COLLISIONS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

Signatures of isospin effects were investigated for neutron-rich (124Sn+64Ni) and neutron-poor (112Sn+58Ni) systems at 35 MeV/nucleon for noncentral collisions. The centrality dependence of these signatures was tested for several impact parameter estimators. Our main observations are (i) the yields of 1H and 3He particles in the neutron-poor system are strongly enhanced with respect to the neutron-rich system, and the yields of 3H, 6He, and 7,8Li are suppressed at all impact parameters, (ii) the yields of 2H, 4He, and 6Li particles are almost the same for both systems, (iii) the N/Z ratio of intermediate mass fragments is correlated with the neutron richness of the system and is weakly dependent on the centrality of the collision, and (iv) the neutron richness of the detected fragments increases strongly with decreasing rapidity in the range from that of the projectile-like fragment to the c.m. region. The gross features of experimental data are reproduced by quantum molecular dynamics model calculations. A comparison between model calculations and the data indicates that the fragments produced in the c.m. regions are weakly excited.

Published
2008

113. A preliminary study on ternary fission in the $^{124}$Sn + $^{64}$Ni reaction at 35 MeV/A

Author

Agodi, C., Filippo, E., Pagano, A., Piasecki, E., Russotto, P., Amorini, F., Anzalone, A., Auditore, L., Baran, V., Berceanu, I., Blicharska, J., Brzychczyk, J., Borderie, B., Bougault, R., Bruno, M., Cardella, G., Cavallaro, S., Chatterjee, M. B., Abdelouahad Chbihi, Colonna, M., Agostino, M. D., Dayras, R., Di Toro, M., Frankland, J. D., Galichet, E., Gawlikowicz, W., Geraci, E., Giustolisi, F., Grzeszczuk, A., Guazzoni, P., Guinet, D., Kowalski, S., La Guidara, E., Lanzalone, G., Lanzano, G., Le Neindre, N., Maiolino, C., Majka, Z., Papa, M., Petrovici, M., Pirrone, S., Planeta, R., Politi, G., Pop, A., Porto, F., Rivet, M. F., Rosato, E., Rizzo, F., Schmidt, K., Siwek-Wilczynska, K., Skwira, I., Steckmeyer, J. C., Swiderski, L., Trifiro, A., Trimarchi, M., Vannini, G., Vigilante, M., Wieleczko, J. P., Wilczynski, J., Zetta, L., Zipper, W., Guesnon, Sandrine, Iori I., Tarantola A., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), I.Iori, A.Tarantola, C., Agodi, E., De Filippo, A., Pagano, E., Piasecki, P., Russotto, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, J., Blicharska, J., Brzychczyk, B., Borderie, R., Bougault, M., Bruno, G., Cardella, S., Cavallaro, M. B., Chatterjee, A., Chbihi, M., Colonna, M., D'Agostino, R., Dayra, M., Di Toro, J., Frankland, E., Galichet, W., Gawlikowicz, E., Geraci, F., Giustolisi, A., Grzeszczuk, P., Guazzoni, D., Guinet, S., Kowalski, E., La Guidara, G., Lanzalone, G., Lanzano, N., Le Neindre, C., Maiolino, Z., Majka, M., Papa, M., Petrovici, S., Pirrone, R., Planeta, G., Politi, A., Pop, F., Porto, M. F., Rive, Rosato, Elio, F., Rizzo, K., Schmidt, K., Siwek Wilczynska, I., Skwira, J. C., Steckmeyer, L., Swiderski, A., Trifiro, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; The projectile-like fragmentation in the $^{124}$Sn + $^{64}$Ni reaction at 35 MeV/A is investigated in the frame of ternary emission. With a very selective analysis of our data, we found consistency of our results with the concept of a ternary emission mechanism in heavy ions collisions at intermediate energy.

Published
2007

114. Isospin effects in neutron-rich and neutron-poor Sn+Ni systems

Author

Planeta, R., Amorini, F., Anzalone, A., Auditore, L., Baran, V., Berceanu, I., Blicharska, J., Borderie, B., Bougault, R., Bruno, M., Brzychczyk, J., Cardella, G., Cavallaro, S., B Chaatterjee, M., Chbihi, A., Colonna, M., Agostino, M. D., Dayras, R., Filippo, E., Di Toro, M., Frankland, J. D., Galichet, E., Gawlikowicz, W., Geraci, E., Giustolisi, F., Grzeszczuk, A., Guazzoni, P., Guinet, D., Iacono Manno, M., Kowalski, S., La Guidara, E., Lanzalone, G., Lanzano, G., Lukasik, J., Maiolino, C., Majka, Z., Nicolas Le Neindre, G Nicolis, N., Pagano, A., Papa, M., Petrovici, M., Piasecki, E., Pirrone, S., Politi, G., Pop, A., Porto, F., F Rivet, M., Rosato, E., Rizzo, F., Russo, S., Rusotto, P., Sassi, M., Schmidt, K., Siwek-Wilczynska, K., Skwira-Chalot, I., Sochocka, A., L Sperduto, M., Swiderski, L., Trifiro, A., Trimarchi, M., Vannini, G., Verde, G., Vigilante, M., Wieleczko, J. P., Wilczynski, J., Zetta, L., Zipper, W., Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), R. Bougault, A. Pagano, S. Pirrone, M-F. Rivet, F. Rizzo, CHIMERA, Flores, Sylvie, R. Bougault, A. Pagano, S. Pirrone, M-F. Rivet, F. Rizzo, R.Bougault, A.Pagano, S.Pirrone, M.F.Rivet e F.Rizzo, R., Płaneta, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, J., Blicharska, J., Brzychczyk, B., Borderie, R., Bougault, M., Bruno, G., Cardella, S., Cavallaro, M. B., Chatterjee, A., Chbihi, M., Colonna, M., D’Agostino, R., Dayra, E., De Filippo, M., Di Toro, J., Frankland, E., Galichet, W., Gawlikowicz, E., Geraci, F., Giustolisi, A., Grzeszczuk, P., Guazzoni, D., Guinet, M., Iacono Manno, S., Kowalski, E., La Guidara, G., Lanzalone, G., Lanzanò, J., Lukasik, C., Maiolino, Z., Majka, N., Le Neindre, N. G., Nicoli, A., Pagano, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, G., Politi, A., Pop, F., Porto, M. F., Rivet, F., Rizzo, Rosato, Elio, S., Russo, P., Russotto, M., Sassi, K., Schmidt, K., Siwek Wilczynska, I., Skwira Chalot, A., Sochocka, M. L., Sperduto, Ł., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, G., Verde, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, W. Z. i. p. p. e., R., Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

Matiere Nucleaire NIM; International audience

Published
2006

115. Dynamical fission in 124Sn + 64Ni collision at 35 a MeV

Author

DE FILIPPO, E., Pagano, Angelo, Piasecki, E., Amorini, F., Anzalone, A., Auditore, Lucrezia, Baran, V., Berceanu, I., Blicharska, J., Brzychczyk, J., Bonasera, A., Borderie, B., Bougault, R., Bruno, M., Cardella, G., Cavallaro, S., Chatterjee, M. B., Chbihi, A., Colonna, M., Agostino, M. D., Dayras, R., DI TORO, M., Frankland, J., Galichet, E., Gawlikowicz, W., Geraci, Elena Irene, Giustolisi, F., Grzeszczuk, A., Guazzoni, P., Guinet, D., IACONO MANNO, M., Kowalski, S., LA GUIDARA, E., Lanzano', G., Lanzalone, G., LE NEINDRE, N., Li, S., LO NIGRO, S., Maiolino, C., Majka, Z., Papa, M., Petrovici, M., Pirrone, S., Baneta, R., Politi, Giuseppe, Pop, A., Porto, F., Rivet, M. F., Rosato, E., Rizzo, Francesca, Russo, S., Russotto, P., Sassi, M., Schmidt, K., SIWEK WILCZYNSKA, K., Skwira, I., Sperduto, M. L., Steckmeyer, J. C., Swiderski, A., Trifiro', A., Trimarchi, M., Vannini, G., Vigilante, M., Wieleczko, J. P., Wilczynski, J., Wu, H., Xiao, Z., Zetta, L., Zipper, W., E., DE FILIPPO, A., Pagano, E., Piasecki, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, J., Blicharska, J., Brzychczyk, A., Bonasera, B., Borderie, R., Bougault, M., Bruno, G., Cardella, S., Cavallaro, M. B., Chatterjee, A., Chbihi, M., CO LONNA, M., D'Agostino, R., Dayra, M., DI TORO, J. D., Frankland, E., Galichet, W., Gawlikowicz, E., Geraci, F., Giustolisi, A., GRZE SZCZUK, P., Guazzoni, D., Guinet, M., IACONO MANNO, S., Kowalski, E., LA GUIDARA, G., Lanzan, G., Lanzalone, N., LE NEINDRE, S., Li, S., LO NIGRO, C., Maiolino, Z., Majka, M., Papa, M., Petrovici, S., Pirrone, R., Planeta, G., Politi, A., Pop, F., Porto, M. F., Rivet, F., Rizzo, Rosato, Elio, S., Russo, P., Russotto, M., Sassi, K., Schmidt, K., SIWEK WILCZYNSKA, I., Skwira, M. L., Sperduto, J. C., Steckmeyer, L., Swiderski, A., Trifir, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, H., Wu, Z., Xiao, L., Zetta, and W., Zipper

Abstract

Some properties of fast, nonequilibrium splitting of projectiles in the 124Sn+64Ni reaction at 35AMeV were determined using the 4π CHIMERA detector system. In particular the charge distributions, in- and out-of-plane angular distributions, and relative velocities of projectilelike fragments were measured. The time scale of the processwas estimated and it turned out that the process is sequential but much faster than the ordinary, equilibrated fission.

Published
2005

116. Recent progress in studying dynamical fragment production with CHIMERA

Author

Russotto, P., Amorini, F., Anzalone, A., Auditore, L., Baran, V., Berceanu, I., Blicharska, J., Brzychczyk, J., Borderie, B., Bougault, R., Bruno, M., Cardella, G., Cavallaro, S., B Chatterjee, M., Chbihi, A., Colonna, M., Agostino, M. D., Dayras, R., Filippo, E., Di Toro, M., Emanuele, U., Frankland, J. D., Galichet, E., Gawlikowicz, W., Geraci, E., Giustolisi, F., Grzeszczuk, A., Guazzoni, P., Guinet, D., Kowalski, S., La Guidara, E., Lanzalone, G., Lanzano, G., Maiolino, C., Majka, Z., Nicolas Le Neindre, G Nicolis, N., Pagano, A., Papa, M., Petrovici, M., Piasecki, E., Pirrone, S., Planeta, R., Politi, G., Pop, A., Porto, F., F Rivet, M., Rosato, E., Rizzo, F., Russo, S., Sassi, M., Schmidt, K., Siwek-Wilczynska, K., Skwira, I., Sochocka, A., Swiderski, L., Trifiro, A., Trimarchi, M., Vannini, G., Vigilante, M., Wieleczko, J. P., Wilczynski, J., Zetta, L., Zipper, W., Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratori Nazionali del Sud (LNS), Istituto Nazionale di Fisica Nucleare (INFN), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), R. Bougault, A. Pagano, S. Pirrone, M-F. Rivet, F. Rizzo, CHIMERA, R.Bougault, A.Pagano, S.Pirrone, M.F.Rivet e F.Rizzo, P., Russotto, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, J., Blicharska, J., Brzychczyk, B., Borderie, R., Bougault, M., Bruno, G., Cardella, S., Cavallaro, M. B., Chatterjee, A., Chbihi, M., Colonna, M., D’Agostino, R., Dayra, E., De Filippo, M., Di Toro, U., Emanuele, J., Frankland, E., Galichet, W., Gawlikowicz, E., Geraci, F., Giustolisi, A., Grzeszczuk, P., Guazzoni, D., Guinet, S., Kowalski, E., La Guidara, G., Lanzalone, G., Lanzanò, C., Maiolino, Z., Majka, N., Le Neindre, N. G., Nicoli, A., Pagano, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, R., Płaneta, G., Politi, A., Pop, F., Porto, M. F., Rivet, Rosato, Elio, F., Rizzo, S., Russo, M., Sassi, K., Schmidt, K., Siwek Wilczynska, I., Skwira, A., Sochocka, Ł., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, W., Zipper, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

Matiere Nucleaire NIM; International audience

117. Fast ternary and quaternary breakup of the 197Au + 197Au system in collisions at 15 MeV/nucleon.

Author

Skwira-Chalot I, Siwek-Wilczyńiska K, Wilczyński J, Amorini F, Anzalone A, Auditore L, Baran V, Brzychczyk J, Cardella G, Cavallaro S, Chatterjee MB, Colonna M, De Filippo E, Di Toro M, Gawlikowicz W, Geraci E, Grzeszczuk A, Guazzoni P, Kowalski S, La Guidara E, Lanzalone G, Lanzanò G, Łukasik J, Maiolino C, Majka Z, Nicolis NG, Pagano A, Piasecki E, Pirrone S, Płaneta R, Politi G, Porto F, Rizzo F, Russotto P, Schmidt K, Sochocka A, Swiderski Ł, Trifirò A, Trimarchi M, Wieleczko JP, Zetta L, and Zipper W

Abstract

A new reaction mechanism of violent reseparation of a heavy nucleus-nucleus system, 197Au + 197Au, into three or four massive fragments in collisions at 15 MeV/nucleon has been observed. After reseparation, the fragments are almost exactly aligned, thus showing a very short time scale of the reseparation process, of about 70-80 fm/c.

Published
2008
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