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221 results on '"Lanzanò G"'

2. The Use of Six Sigma to Assess Two Prostheses for Immediate Breast Reconstruction

Author

Ricciardi, C., Gubitosi, A., Lanzano, G., Pieretti, G., Improta, G., Crisci, E., Ferraro, G. A., Magjarevic, Ratko, Series Editor, Ładyżyński, Piotr, Associate Editor, Ibrahim, Fatimah, Associate Editor, Lackovic, Igor, Associate Editor, Rock, Emilio Sacristan, Associate Editor, Jarm, Tomaz, editor, Cvetkoska, Aleksandra, editor, Mahnič-Kalamiza, Samo, editor, and Miklavcic, Damijan, editor

Published
2021
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3. Probing clustering in excited alpha-conjugate buclei

Author

Borderie, B., Raduta, Ad. R., Ademard, G., Rivet, M. F., De Filippo, E., Geraci, E., Neindre, N. Le, Alba, R., Amorini, F., Cardella, G., Chatterjee, M., Guinet, D., Lautesse, P., La Guidara, E., Lanzalone, G., Lanzano, G., Lombardo, I., Lopez, O., Maiolino, C., Pagano, A., Papa, M., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Russotto, P., and Wieleczko, J. P.

Subjects
Nuclear Experiment
Abstract

The fragmentation of quasi-projectiles from the nuclear reaction $^{40}$Ca+$^{12}$C at 25 MeV per nucleon bombarding energy was used to produce $\alpha$-emission sources. From a careful selection of these sources provided by a complete detection and from comparisons with models of sequential and simultaneous decays, evidence in favor of $\alpha$-particle clustering from excited $^{16}O$, $^{20}Ne$ and $^{24}Mg$ is reported., Comment: 15 pages, 6 figures, accepted in Physics Letters B

Published
2016

5. Correlations between emission timescale of fragments and isospin dynamics in $^{124}$Sn+$^{64}$Ni and $^{112}$Sn+$^{58}$Ni reactions at 35 AMeV

Author

De Filippo, E., Pagano, A., Russotto, P., Amorini, F., Anzalone, A., Auditore, L., Baran, V., Berceanu, I., Borderie, B., Bougault, R., Bruno, M., Cap, T., 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, E., Grzeszczuk, A., Guazzoni, P., Kowalski, S., La Guidara, E., Lanzalone, G., Lanzanò, G., Neindre, N. Le, Lombardo, I., Maiolino, C., Papa, M., Piasecki, E., Pirrone, S., Planeta, R., Politi, G., Pop, A., Porto, F., Rivet, M. F., Rizzo, F., Rosato, E., Schmidt, K., Siwek-Wilczynska, K., Skwira-Chalot, I., Trifirò, A., Trimarchi, M., Verde, G., Vigilante, M., Wieleczko, J. P., Wilczynski, J., Zetta, L., and Zipper, W.

Subjects
Nuclear Experiment
Abstract

We present a new experimental method to correlate the isotopic composition of intermediate mass fragments (IMF) emitted at mid-rapidity in semi-peripheral collisions with the emission timescale: IMFs emitted in the early stage of the reaction show larger values of $<$N/Z$>$ isospin asymmetry, stronger angular anisotropies and reduced odd-even staggering effects in neutron to proton ratio $<$N/Z$>$ distributions than those produced in sequential statistical emission. All these effects support the concept of isospin "migration", that is sensitive to the density gradient between participant and quasi-spectator nuclear matter, in the so called neck fragmentation mechanism. By comparing the data to a Stochastic Mean Field (SMF) simulation we show that this method gives valuable constraints on the symmetry energy term of nuclear equation of state at subsaturation densities. An indication emerges for a linear density dependence of the symmetry energy., Comment: 17 pages, 7 figures; submitted to Physical Rev. C

Published
2012
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6. Persistence of odd-even staggering in charged fragment yields from the 112Sn+58Ni collision at 35 MeV/nucleon

Author

Casini, G., Piantelli, S., Maurenzig, P. R., Olmi, A., Bardelli, L., Barlini, S., Benelli, M., Bini, M., Calviani, M., Marini, P., Mangiarotti, A., Pasquali, G., Poggi, G., Stefanini, A. A., Bruno, M., Morelli, L., Kravchuk, V. L., Amorini, F., Auditore, L., Cardella, G., De Filippo, E., Galichet, E., La Guidara, E., Lanzalone, G., Lanzano', G., Maiolino, C., Pagano, A., Papa, M., Pirrone, S., Politi, G., Pop, A., Rizzo, F., Russotto, P., Santonocito, D., Trifiro', A., and Trimarchi, M.

Subjects
Nuclear Experiment
Abstract

Odd-even staggering effects on charge distributions are investigated for fragments produced in semiperipheral and central collisions of 112Sn+58Ni at 35 MeV/nucleon. For fragments with Z<16 one observes a clear overproduction of even charges, which decreases for heavier fragments. In peripheral collisions staggering effects persist up to Z about 40. For light fragments, staggering appears to be substantially independent of the centrality of the collisions, suggesting that it is mainly related to the last few steps in the decay of hot nuclei., Comment: 5 pages, 6 figures

Published
2012
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7. Evidence for $\alpha$-particle condensation in nuclei from the Hoyle state deexcitation

Author

Raduta, Ad. R., Borderie, B., Geraci, E., Neindre, N. Le, Napolitani, P., Rivet, M. F., Alba, R., Amorini, F., Cardella, G., Chatterjee, M., De Filippo, E., Guinet, D., Lautesse, P., La Guidara, E., Lanzalone, G., Lanzano, G., Lombardo, I., Lopez, O., Maiolino, C., Pagano, A., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Russotto, P., and Wieleczko, J. P.

Subjects
Nuclear Experiment
Abstract

The fragmentation of quasi-projectiles from the nuclear reaction $^{40}$Ca+$^{12}$C at 25 MeV/nucleon was used to produce excited states candidates to $\alpha$-particle condensation. Complete kinematic characterization of individual decay events, made possible by a high-granularity 4$\pi$ charged particle multi-detector, reveals that 7.5$\pm$4.0% of the particle decays of the Hoyle state correspond to direct decays in three equal-energy $\alpha$-particles., Comment: Phys. Lett. B, in press

Published
2011
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8. Production of $\alpha$-particle condensate states in heavy-ion collisions

Author

Raduta, Ad. R., Borderie, B., Geraci, E., Neindre, N. Le, Napolitani, P., Rivet, M. F., Alba, R., Amorini, F., Cardella, G., Chatterjee, M., De Filippo, E., Guinet, D., Lautesse, P., La Guidara, E., Lanzalone, G., Lanzano, G., Lombardo, I., Lopez, O., Maiolino, C., Pagano, A., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Russotto, P., and Wieleczko, J. P.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The fragmentation of quasi-projectiles from the nuclear reaction $^{40}Ca$ + $^{12}C$ at 25 MeV/nucleon was used to produce excited states candidates to $\alpha$-particle condensation. The experiment was performed at LNS-Catania using the CHIMERA multidetector. Accepting the emission simultaneity and equality among the $\alpha$-particle kinetic energies as experimental criteria for deciding in favor of the condensate nature of an excited state, we analyze the $0_2^+$ and $2_2^+$ states of $^{12}$C and the $0_6^+$ state of $^{16}$O. A sub-class of events corresponding to the direct 3-$\alpha$ decay of the Hoyle state is isolated., Comment: contribution to the 2nd Workshop on "State of the Art in Nuclear Cluster Physics" (SOTANCP2), Universite Libre de Bruxelles (Belgium), May 25-28, 2010, to be published in the International Journal of Modern Physics E

Published
2010
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9. Alpha-particle condensation in excited 12C

Author

Raduta, Ad. R., Borderie, B., Geraci, E., Neindre, N. Le, Napolitani, P., Rivet, M. F., Alba, R., Amorini, F., Cardella, G., Chatterjee, M., De Filippo, E., Guinet, D., Lautesse, P., La Guidara, E., Lanzalone, G., Lanzano, G., Lombardo, I., Lopez, O., Maiolino, C., Pagano, A., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Russotto, P., and Wieleczko, J. P.

Subjects
Nuclear Experiment
Abstract

The fragmentation of quasi-projectiles from the nuclear reaction $^{40}Ca$+$^{12}C$ at 25 MeV/nucleon was used to produce excited states candidates to $\alpha$-particle condensation. The methodology relies on high granularity 4$\pi$ detection coupled to correlation function techniques. Under the assumption that the equality among the kinetic energies of the emitted $\alpha$-particles and the emission simultaneity constitutes a reliable fingerprint of $\alpha$ condensation, we identify several tens of events corresponding to the deexcitation of the Hoyle state of $^{12}$C which fulfill the condition., Comment: 5 pages, 3 figures

Published
2010

10. Non-statistical fluctuations for deep inelastic processes in 27Al + 27Al

Author

Berceanu, I., Duma, M., Moisa, D., Petrovici, M., Pop, A., Simion, V., Del Zoppo, A., d'Erasmo, G., Imme, G., Lanzano, G., Pagano, A., Pantaleo, A., and Raciti, G.

Subjects
Nuclear Experiment
Abstract

The excitation functions for different fragments produced in the 27Al + 27Al dissipative collisions have been measured in steps of 250 keV in the energy range 122 - 132 MeV. Deep inelastic processes have been selected by integrating events over a total kinetic energy loss window of 12 MeV between 20 and 32 MeV. Large fluctuations have been observed in all the studied excitation functions. Non-satistical origin of these fluctuations is confirmed by large channel cross correlations coefficients. Energy autocorrelation function of cross section excitation function presents damped oscillation structure as predicted for the case when a di-nuclear system with a lifetime similar with its revolution period is formed. The periodicity of the energy autocorrelation function is used to obtain information on the deformation of the 27Al + 27 Al di-nucleus., Comment: 6 pages, 4 figures, 2 tables

Published
2005
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11. Correlation functions and emission time sequence of light charged particles from projectile-like fragment source in E/A = 44 and 77 MeV 40Ar + 27Al collisions

Author

Ghetti, R., Helgesson, J., Lanzano', G., De Filippo, E., Geraci, M., Aiello, S., Cavallaro, S., Pagano, A., Politi, G., Charvet, J. L., Dayras, R., Pollacco, E., Volant, C., Beck, C., Mahboub, D., and Nouicer, R.

Subjects
Nuclear Experiment
Abstract

Two-particle correlation functions, involving protons, deuterons, tritons, and alpha-particles, have been measured at very forward angles (0.7 deg < theta_lab < 7 deg), in order to study projectile-like fragment (PLF) emission in E/A = 44 and 77 MeV 40Ar + 27Al collisions. Peaks, originating from resonance decays, are larger at E/A = 44 than at 77 MeV. This reflects the larger relative importance of independently emitted light particles, as compared to two-particle decay from unstable fragments, at the higher beam energy. The time sequence of the light charged particles, emitted from the PLF, has been deduced from particle-velocity-gated correlation functions (discarding the contribution from resonance decays). Alpha-particles are found to have an average emission time shorter than protons but longer than tritons and deuterons., Comment: 18 pages, 5 figures, submitted to Nuclear Physics A

Published
2004
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12. Possibility to deduce the emission time sequence of neutrons and protons from the neutron-proton correlation function?

Author

Ghetti, R., Helgesson, J., Colonna, N., Jakobsson, B., Anzalone, A., Bellini, V., Carlen, L., Cavallaro, S., Celano, L., De Filippo, E., D'Erasmo, G., Di Santo, D., Fiore, E. M., Fokin, A., Geraci, M., Giustolisi, F., Kuznetsov, A., Lanzano', G., Mahboub, D., Marrone, S., Maartensson, J., Palomba, M., Pantaleo, A., Paticchio, V., Riera, G., Sperduto, M. L., Sutera, C., Tagliente, G., and Urrata, M.

Subjects
Nuclear Experiment
Abstract

Experimental information has been derived from the neutron-proton correlation function in order to deduce the time sequence of neutrons and protons emitted at 45 degrees in the E/A = 45 MeV 58Ni + 27Al reaction., Comment: 4 pages, 4 figures. Physical Review Letters, in press

Published
2001
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14. Statistical Binary Decay of $^{35}$Cl + $^{24}$Mg at 8 MeV/nucleon

Author

Nouicer, R., Beck, C., Mahboub, D., Matsuse, T., Djerroud, B., Freeman, R. M., Hachem, A., Cavallaro, Sl., De Filippo, E., Lanzano, G., Pagano, A., Sperduto, M. L., Dayras, R., Berthoumieux, E., Legrain, R., and Pollacco, E.

Subjects
Nuclear Experiment
Abstract

The properties of the two-body channels in the $^{35}$Cl + $^{24}$Mg reaction at a bombarding energy of 275 MeV have been investigated by using fragment-fragment coincident techniques. The exclusive data show that the majority of events arises from a binary-decay process. The rather large number of secondary light charged-particles emitted from the two excited exit fragments are cnsistent with the expectations of the Extended Hauser-Feshbach Method. No evidence for the occurence of ternary break-up events is observed., Comment: 8 pages, 3 Figures available upon request To be published at Z. Phys. A

Published
1996
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15. $^{35}$Cl+$^{12}$C Asymmetrical fission excitation functions

Author

Beck, C., Mahboub, D., Nouicer, R., Matsuse, T., Djerroud, B., Freeman, R. M., Haas, F., Hachem, A., Morsad, A., Youlal, M., Sanders, S. J., Dayras, R., Berthoumieux, E., Legrain, R., Pollacco, E., Cavallaro, Sl, De Filippo, E., Lanzano, G., Pagano, A., and Sperduto, M. L.

Subjects
Nuclear Theory
Abstract

The fully energy-damped yields from the $^{35}$Cl+$^{12}$C reaction have been systematically investigated using particle-particle coincidence techniques at a $^{35}$Cl bombarding energy of $\sim$ 8 MeV/nucleon. The fragment-fragment correlation data show that the majority of events arises from a binary-decay process with rather large numbers of secondary light-charged particles emitted from the two excited exit fragments. No evidence is observed for ternary break-up events. The binary-process results of the present measurement, along with those of earlier, inclusive experimental data obtained at several lower bombarding energies are compared with predictions of two different kinds of statistical model calculations. These calculations are performed using the transition-state formalism and the Extended Hauser-Feshbach method and are based on the available phase space at the saddle point and scission point of the compound nucleus, respectively. The methods give comparable predictions and are both in good agreement with the experimental results thus confirming the fusion-fission origin of the fully-damped yields. The similarity of the predictions for the two models supports the claim that the scission point configuration is very close to that of the saddle point for the light $^{47}$V mass-asymmetry-dependent fission barriers needed in the transition-state calculation., Comment: 20 pages, revtex, figures available upon request, to appear in Phys. Rev. C

Published
1996
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17. Production of Heavy Fragments in the Reaction 40Ar + 232Th

Author

Berthoumieux, E., Pollacco, E. C., Volant, C., De Filippo, E., Barth, R., Berthier, B., Cassagnou, Y., Cavallaro, Sl., Charvet, J. L., Colonna, M., Cunsolo, A., Dayras, R., Durand, D., Foti, A., Harar, S., Lanzanó, G., Legrain, R., Lips, V., Mazur, C., Norbeck, E., Oeschler, H., Pagano, A., Urso, S., Bauer, Wolfgang, editor, and Mignerey, Alice, editor

Published
1996
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18. Multifragmentation threshold in 93Nb + natMg collisions at 30 MeV/nucleon

Author

Manduci, L., Lopez, O., Steckmeyer, J.C., Borderie, B., Bougault, R., Dayras, R., Frankland, J.D., Guinet, D., Lautesse, P., Le Neindre, N., Pârlog, M., Rivet, M.F., Rosato, E., Roy, R., Vient, E., Vigilante, M., Tamain, B., Wieleckzo, J.P., Aiello, S., Anzalone, A., Cardella, G., Cavallaro, S., De Filippo, E., Feminó, S., Giustolisi, F., Guazzoni, P., Lanzalone, G., Lanzanó, G., Nigro, S. Lo, Pagano, A., Papa, M., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Sperduto, L., and Zetta, L.

Published
2008
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29. Pulse Shape Method applied to silicon detectors of CHIMERA array

Author

Alderighi, M, Anzalone, A, Auditore, L, Arena, N, Bassini, R, Blicharska, J, Boiano, C, Campagna, V, Cardella, G, Cavallaro, S, D'Andrea, M, Di Stefano, A, Fichera, F, De Filippo, E, Geraci, E, Giudice, N, Giustolisi, F, Grzeszczuk, A, Guardone, N, Guazzoni, P, Grimaldi, A, Laguidara, E, Lanzanó, G, Lanzalone, G, Limone, A, Nicotra, D, Paduszynski, T, Pagano, A, Papa, M, Pirrone, S, Politi, G, Porto, F, Rapicavoli, C, Rizza, G, Rosato, E, Russo, S, Russotto, P, Salomone, S, Sassi, M, Saccà, G, Sechi, G, Sperduto, M.L, Trifiró, A, Trimarchi, M, Urso, S, Vigilante, M, Zetta, L, and Zipper, V

Published
2004
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30. Isotope correlations as a probe for freeze-out characterization: central 124Sn+ 64Ni, 112Sn+ 58Ni collisions

Author

Geraci, E., Alderighi, M., Anzalone, A., Auditore, L., Baran, V., Bartolucci, M., Berceanu, I., Blicharska, J., Bonasera, A., Borderie, B., Bougault, R., Bruno, M., Brzychczyk, J., Cardella, G., Cavallaro, S., Chbihi, A., Cibor, J., Colonna, M., D'Agostino, M., De Filippo, E., Di Toro, M., Giustolisi, F., Grzeszczuk, A., Guazzoni, P., Guinet, D., Iacono-Manno, M., Kowalski, S., La Guidara, E., Lanzalone, G., Lanzano´, G., Le Neindre, N., Li, S., Lo Nigro, S., Maiolino, C., Majka, Z., Manfredi, G., Paduszynski, T., Pagano, A., Papa, M., Petrovici, M., Piasecki, E., Pirrone, S., Politi, G., Pop, A., Porto, F., Rivet, M.F., Rosato, E., Russo, S., Russotto, P., Sechi, G., Simion, V., Sperduto, M.L., Steckmeyer, J.C., Trifiro`, A., Trimarchi, M., Vannini, G., Vigilante, M., Wieleczko, J.P., Wilczynski, J., Wu, H., Xiao, Z., Zetta, L., and Zipper, W.

Published
2004
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31. Fragmentation studies with the CHIMERA detector at LNS in Catania: recent progress

Author

Pagano, A., Alderighi, M., Amorini, F., Anzalone, A., Arena, L., Auditore, L., Baran, V., Bartolucci, M., Berceanu, I., Blicharska, J., Brzychczyk, J., Bonasera, A., Borderie, B., Bougault, R., Bruno, M., Cardella, G., Cavallaro, S., Chatterjee, M.B., Chbihi, A., Cibor, J., Colonna, M., D'Agostino, M., Dayras, R., De Filippo, E., Di Toro, M., 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., Lo Nigro, S., Maiolino, C., Majka, Z., Manfredi, G., Paduszynski, T., Papa, M., Petrovici, M., Piasecki, E., Pirrone, S., Planeta, R., Politi, G., Pop, A., Porto, F., Rivet, M.F., Rosato, E., Rizzo, F., Russo, S., Russotto, P., Sassi, M., Sechi, G., Simion, V., Siwek-Wilczynska, K., Skwira, I., Sperduto, M.L., Steckmeyer, J.C., Swiderski, L., Trifiro`, A., Trimarchi, M., Vannini, G., Vigilante, M., Wieleczko, J.P., Wilczynski, J., Wu, H., Xiao, Z., Zetta, L., and Zipper, W.

Published
2004
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32. Isoscaling in central 124Sn+ 64Ni, 112Sn+ 58Ni collisions at 35 A MeV

Author

Geraci, E., Bruno, M., D'Agostino, M., De Filippo, E., Pagano, A., Vannini, G., Alderighi, M., Anzalone, A., Auditore, L., Baran, V., Barnà, R., Bartolucci, M., Berceanu, I., Blicharska, J., Bonasera, A., Borderie, B., Bougault, R., Brzychczyk, J., Cardella, G., Cavallaro, S., Chbihi, A., Cibor, J., Colonna, M., De Pasquale, D., Di Toro, M., Giustolisi, F., Grzeszczuk, A., Guazzoni, P., Guinet, D., Iacono-Manno, M., Italiano, A., Kowalski, S., La Guidara, E., Lanzalone, G., Lanzanó, G., Le Neindre, N., Li, S., Lo Nigro, S., Maiolino, C., Majka, Z., Manfredi, G., Paduszynski, T., Papa, M., Petrovici, M., Piasecki, E., Pirrone, S., Politi, G., Pop, A., Porto, F., Rivet, M.F., Rosato, E., Russo, S., Russotto, P., Sechi, G., Simion, V., Sperduto, M.L., Steckmeyer, J.C., Trifirò, A., Trimarchi, M., Vigilante, M., Wieleczko, J.P., Wilczynski, J., Wu, H., Xiao, Z., Zetta, L., and Zipper, W.

Published
2004
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35. Particle identification method in the CsI(Tl) scintillator used for the CHIMERA 4 π detector

Author

Alderighi, M, Anzalone, A, Basssini, R, Berceanu, I, Blicharska, J, Boiano, C, Borderie, B, Bougault, R, Bruno, M, Calí, C, Cardella, G, Cavallaro, Sl, D'Agostino, M, D'Andrea, M, Dayras, R, De Filippo, E, Fichera, F, Geraci, E, Giustolisi, F, Grzeszczuk, A, Guardone, N, Guazzoni, P, Guinet, D, Iacono-Manno, C.M, Kowalski, S, La Guidara, E, Lanchais, A.L, Lanzalone, G, Lanzanó, G, Le Neindre, N, Li, S, Maiolino, C, Majka, Z, Manfredi, G, Nicotra, D, Paduszynski, T, Pagano, A, Papa, M, Petrovici, C.M, Piasecki, E, Pirrone, S, Politi, G, Pop, A, Porto, F, Rivet, M.F, Rosato, E, Saccá, G, Sechi, G, Simion, V, Sperduto, M.L, Steckmeyer, J.C, Trifiró, A, Trimarchi, M, Urso, S, Vannini, G, Vigilante, M, Wilczynski, J, Wu, H, Xiao, Z, Zetta, L, and Zipper, W

Published
2002
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37. Physics with the Chimera detector at LNS in Catania: the REVERSE experiment

Author

Pagano, A., Aiello, S., Alderighi, M., Anzalone, A., Baldo, M., Barnà, R., Bartolucci, M., Berceanu, I., Bonasera, A., Borderie, B., Botvina, A., Bougault, R., Bruno, M., Cardella, G., Cavallaro, S., Colonna, M., D'Agostino, M., D'Amico, E., Dayras, R., De Cesare, N., De Filippo, E., De Pasquale, D., Di Toro, M., Feminò, S., Fuschini, E., Geraci, E., Geraci, M., Giustolisi, F., Grzeszczuk, A., Guazzoni, P., Guinet, D., Iacono-Manno, M., Italiano, A., Kolwaski, S., Lanzanò, G., Lanzalone, G., Le Neindre, N., Li, S., Lombardo, U., Lo Nigro, S., Maiolino, C., Mahboub, D., Manfredi, G., Margagliotti, G., Moisa, D., Paduszynski, T., Papa, M., Petrovici, C.M., Piasecki, E., Pirrone, S., Politi, G., Pollacco, E., Pop, A., Porto, F., Rapisarda, A., Rivet, M.F., Rosato, E., Sambataro, S., Sechi, G., Simion, V., Sperduto, M.L., Steckmeyer, J.C., Sutera, C., Trifirò, A., Trimarchi, M., Vannini, G., Vigilante, M., Wilczynski, J., Wu, H., Xiao, Z., Zetta, L., and Zipper, W.

Published
2001
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39. Characterization of nuclear sources from neutron–neutron, proton–proton and neutron–proton correlation functions

Author

Ghetti, R., Mårtensson, J., Colonna, N., Helgesson, J., Jakobsson, B., De Filippo, E., Tagliente, G., Lanzanò, G., Pantaleo, A., Bellini, V., Anzalone, A., Carlèn, L., Cavallaro, S., Celano, L., D'Erasmo, G., Di Santo, D., Fiore, E.M., Fokin, A., Geraci, M., Giustolisi, F., Kuznetsov, A., Mahboub, D., Palazzolo, F., Palomba, M., Paticchio, V., Riera, G., Sperduto, M.L., Sutera, C., Urrata, M., and Collaboration, CHIC

Published
2000
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40. Production cross sections for intermediate mass fragments from dynamical and statistical decay of projectile-like fragments in Sn 124 + Ni 64 and Sn 112 + Ni 58 collisions at 35 A MeV

Author

Russotto, P., De Filippo, E., Pagano, Angelo, Acosta, L., Auditore, Lucrezia, Baran, V., Berceanu, I., Borderie, B., Bougault, R., Bruno, M., Cap, T., Cardella, G., Cavallaro, S., Chatterjee, M. B., Chbihi, A., Colonna, M., D'Agostino, M., Di Toro, M., Francalanza, L., Frankland, J., Galichet, E., Gawlikowicz, W., Geraci, Elena Irene, Gnoffo, B., Grzeszczuk, A., Guazzoni, P., Kowalski, S., Lanzalone, G., Lanzanò, G., Le Neindre, N., Lombardo, I., Maiolino, C., Minniti, Triestino, Pagano, E. V., Papa, M., Piasecki, E., Pirrone, S., Płaneta, R., Politi, Giuseppe, Porto, F., Quattrocchi, Lucia, Rivet, M. F., Rosato, E., Rizzo, Francesca, Schmidt, K., Siwek Wilczyńska, K., Skwira Chalot, I., Trifirò, A., Trimarchi, M. Verde G., Vigilante, M., Wieleczko, J. P., Wilczyński, J., Zetta, L., Zipper, W., Russotto, P. A, De Filippo, E. A, Pagano, A. A, Acosta, L. B, Auditore, L. C, Baran, V. D, Berceanu, I. E, Borderie, B. F, Bougault, R. G, Bruno, M. H, Cap, T. I, Cardella, G. A, Cavallaro, S. Bj, Chatterjee, M. B. K, Chbihi, A. L, Colonna, M. B, D'Agostino, M. H, Di Toro, M. Bj, Francalanza, L. Bj, Frankland, J. L, Galichet, E. Fm, Gawlikowicz, W. N, Geraci, E. Aj, Gnoffo, B. Aj, Grzeszczuk, A. O, Guazzoni, P. P, Kowalski, S. O, Lanzalone, G. Bq, Lanzanò, G. A, Le Neindre, N. G, Lombardo, Ivano, Maiolino, C. B, Minniti, T. A, Pagano, E. V. Bj, Papa, M. A, Piasecki, E. St, Pirrone, S. A, Płaneta, R. U, Politi, G. Aj, Porto, F. Bj, Quattrocchi, L. C, Rivet, M. F. F, Rosato, Elio, Rizzo, F. Bj, Schmidt, K. O, Siwek Wilczyńska, K. I, Skwira Chalot, I. I, Trifirò, A. C, Trimarchi, M. C, Verde, G. A, Vigilante, Mariano, Wieleczko, J. P. L, Wilczyński, J. T, Zetta, L. P, and Zipper, W. O.

Subjects
Nuclear and High Energy Physics
Abstract

Background: In heavy-ion collisions at intermediate energies the production of light charged particles and intermediate mass fragments (IMFs) is due to different reaction mechanisms and different time scales, ranging from fast dynamical processes to statistical emission from the equilibrated system. Purpose: We compare the IMF statistical and dynamical emission probabilities in collisions of a neutron-rich Sn124+Ni64 system and a neutron-poor Sn112+Ni58 system at the laboratory energy of 35 A MeV. Method: The IMFs production mechanism in semiperipheral reactions has been investigated in our previous works. In this paper, the analysis is expanded for the same set of data and production cross sections have been evaluated for dynamical and statistical emission in a coherent way for light and heavy fragments. Results: The data analysis has evidenced a strong competition between dynamical and statistical emission mechanisms. Probability of the dynamical emission of IMFs is strongly influenced by the (N/Z) ratio of the colliding system. Conclusions: It is demonstrated that the statistical emission is equally probable for the two systems, while the dynamical emission is enhanced for the neutron-rich system, especially for heavy fragments (Z≥6). The observed effect points at a high sensitivity of the prompt-dynamical emission to the (N/Z) ratio of a given system. © 2015 American Physical Society.

Published
2015

41. Probing clustering in excited alpha-conjugate nuclei

Author

Borderie, B., Raduta, Ad.R., Ademard, G., Rivet, M.F., De Filippo, E., Geraci, E., Le Neindre, N., Alba, R., Amorini, F., Cardella, G., Chatterjee, M., Guinet, D., Lautesse, P., La Guidara, E., Lanzalone, G., Lanzano, G., Lombardo, I., Lopez, O., Maiolino, C., Pagano, A., Papa, M., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Russotto, P., and Wieleczko, J.P.

Published
2016
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42. Characterization of nuclear sources via two-neutron intensity interferometry

Author

Ghetti, R., Colonna, N., Helgesson, J., De Filippo, E., Tagliente, G., Anzalone, A., Bellini, V., Carlèn, L., Cavallaro, S., Celano, L., D'Erasmo, G., Di Santo, D., Fiore, E.M., Fokin, A., Geraci, M., Jakobsson, B., Kuznetsov, A., Lanzanò, G., Mahboub, D., Murin, Yu., Mårtensson, J., Pagano, A., Palazzolo, F., Palomba, M., Pantaleo, A., Paticchio, V., Potenza, R., Riera, G., Siwek, A., Sperduto, M.L., Sutera, C., Urrata, M., and Westerberg, L.

Published
1999
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43. Plasma effects for heavy ions in implanted silicon detectors

Author

Aiello, S, Anzalone, A, Campisi, M.G, Cardella, G, Cavallaro, Sl, Filippo, E.De, Geraci, E, Geraci, M, Guazzoni, P, Manno, M.C.Iacono, Lanzalone, G, Lanzano, G, Nigro, S.Lo, Pagano, A, Papa, M, Pirrone, S, Politi, G, Porto, F, Rizzo, F, Sambataro, S, Sperduto, M.L, Sutera, C, and Zetta, L

Published
1999
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45. Production cross sections for intermediate mass fragments from dynamical and statistical decay of projectile-like fragments in 124Sn+64Ni and 112Sn+58Ni collisions at 35 AMeV

Author

Russotto, P., De Filippo, E., Pagano, A., Acosta, L., Auditore, Lucrezia, Baran, V., Berceanu, I., Borderie, B., Bougault, R., Bruno, M., Cap, T., Cardella, G., Cavallaro, S., Chatterjee, M. B., Chbihi, A., Colonna, M., D???agostino, M., Di Toro, M., Francalanza, L., Frankland, J., Galichet, E., Gawlikowicz, W., Geraci, E., Gnoffo, B., Grzeszczuk, A., Guazzoni, P., Kuwalski, S., Lanzalone, G., Lanzanò, G., Le Neindre, N., Lombardo, I., Maiolino, C., Minniti, Triestino, Pagano, Ev, Papa, M., Piasecki, E., Pirrone, S., Planeta, R., Politi, G., Porto, F., Quattrocchi, Lucia, Rivet, M. F., Rosato, E., Rizzo, F., Schmidt, K., Siwek Wilczynska, K., Skwira Chalot, I., Trifiro', Antonio, Trimarchi, Marina, Verde, G., Vigilante, M., Wieleczko, Jp, Wilczynski, J., Zetta, L., and Zipper, W.

Subjects
heavy ion collisions
Published
2015

46. Production cross sections for intermediate mass fragments from dynamical and statistical decay of projectile-like fragments in ^{124}Sn + ^{64}Ni and ^{112}Sn + ^{58}Ni collisions at 35A MeV

Author

Russotto, P., De Filippo, E., Pagano, A., Acosta, L., Auditore, L., Baran, V., Berceanu, I., Borderie, B., Bougault, R., Bruno, M., Cap, T., Cardella, G., Cavallaro, S., Chatterjee, M. B., Chbihi, A., Colonna, M., D'Agostino, M., Di Toro, M., Francalanza, L., Frankland, J., Galichet, E., Gawlikowicz, W., Geraci, E., Gnoffo, B., Grzeszczuk, A., Guazzoni, P., Kowalski, S., Lanzalone, G., Lanzanò, G., Le Neindre, N., Lombardo, I., Maiolino, C., Minniti, T., Pagano, E. V., Papa, M., Piasecki, E., Pirrone, S., Płaneta, Roman, Politi, G., Porto, F., Quattrocchi, L., Rivet, M. F., Rosato, E., Rizzo, F., Schmidt, K., Siwek-Wilczyńska, K., Skwira-Chalot, I., Trifirò, A., Trimarchi, M., Verde, G., Vigilante, M., Wieleczko, J. P., Wilczyński, J., Zetta, L., and Zipper, W.

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Cosmology and Extragalactic Astrophysics, Nuclear Experiment, Astrophysics::Galaxy Astrophysics
Abstract

Background: In heavy-ion collisions at intermediate energies the production of light charged particles and intermediate mass fragments (IMFs) is due to different reaction mechanisms and different time scales, ranging from fast dynamical processes to statistical emission from the equilibrated system. Purpose: We compare the IMF statistical and dynamical emission probabilities in collisions of a neutron-rich ^{124}Sn + ^{64}Ni system and a neutron-poor ^{112}Sn + ^{58}Ni system at the laboratory energy of 35 A MeV. Method: The IMFs production mechanism in semiperipheral reactions has been investigated in our previous works. In this paper, the analysis is expanded for the same set of data and production cross sections have been evaluated for dynamical and statistical emission in a coherent way for light and heavy fragments. Results: The data analysis has evidenced a strong competition between dynamical and statistical emission mechanisms. Probability of the dynamical emission of IMFs is strongly influenced by the (N/Z) ratio of the colliding system. Conclusions: It is demonstrated that the statistical emission is equally probable for the two systems, while the dynamical emission is enhanced for the neutron-rich system, especially for heavy fragments (Z≥6). The observed effect points at a high sensitivity of the prompt-dynamical emission to the (N/Z) ratio of a given system.

Published
2015

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