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1. The use of Fibrin Sealants in Reducing Drain Output in Abdominoplasty: Is it Useful?

Author

G. Pieretti, A. Gubitosi, V. Mazzarella, M. Cimmino, G. Lanzano, R. Grella, G.A. Ferraro, and E. Grella

Subjects
abdominoplasty, postbariatric surgery, fibrin sealant, fibrin glue, drain output, bleeding, Surgery, RD1-811
Abstract

Background: Abdominoplasty is a common surgical procedure in which excess abdominal skin and fat are reduced to improve body contouring. Fibrin sealant has been proposed to reduce postsurgical bleeding and exudation. In this study, we evaluated whether there was a significant statistical difference in surgical output between the use of fibrin glue and its nonuse in abdominoplasty surgery, specifically in reducing bleeding and exudation. Material and methods: A retrospective chart review of 68 postbariatric abdominoplasty patients (58 females, 10 males) was performed. We divided the patients into Group A (30 cases, 44%), in which we used fibrin sealant, and Group B (38 cases, 56%), in which we did not use fibrin glue. We calculated the total amount of liquid in suction drainages until the day of their removal. Statistical analysis included the independent t-test with a significance level of 0.05. Results: The average drainage output in Group A was 620.0 ± 375.0 mL, whereas in Group B, it was 500.0 ± 290.0 mL. Results indicate an insignificant correlation between the use of fibrin glue and the amount of liquid in the surgical drains (t = 1.52, p = 0.13). The result is not significant at p

Published
2024
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2. Vulnerability of Industrial Components to Soil Liquefaction

Author

G. Lanzano, F. Santucci De Magistris, E. Salzano, and G. Fabbrocino

Subjects
Chemical engineering, TP155-156, Computer engineering. Computer hardware, TK7885-7895
Abstract

Dynamic liquefaction of saturate loose sand deposit is a common geotechnical failure effect caused by an earthquake, which can lead to structural damage of buildings, lifelines and industrial components in general. Several damage cases have been observed in past events and have been documented in the technical literature and post-earthquake reconnaissance reports. Failure and malfunctioning of pipelines, tanks and wastewater treatment plants, induced by differential vertical settlements, horizontal lateral spread and uplift of underground structures, are described. All these permanent displacements could be directly related to co-seismic liquefaction of the foundation soil. Moreover, this failure mechanism is strongly site dependent and the abovementioned effects frequently occurred in coastal and fluvial plane areas, where industrial plants are often situated. The paper studies and compares the behaviour of some important industrial components during the liquefaction event. Empirical fragilities and threshold values were evaluated on the basis of the significant seismic parameter, accounting for the possible hazardous effects of the release of toxic and flammable fluids. These tools could be assessed by means of a comparison with similar ones proposed by current building codes and implemented in existing software for the risk assessment of industrial plants and lifeline networks.

Published
2014
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3. Vulnerability of Pipelines Subjected to Permanent Deformation Due to Geotechnical Co-seismic Effects

Author

G. Lanzano, E. Salzano, F. Santucci De Magistris, and G. Fabbrocino

Subjects
Chemical engineering, TP155-156, Computer engineering. Computer hardware, TK7885-7895
Abstract

Pipelines are basilar structures for the development of civil and industrial activities. Their seismic behaviour could be analyzed by applying a multi-disciplinary approach. In particular, for underground pipelines, soil/structure interaction is considered determinant during the seismic event. Moreover, for specific site conditions, ground failure phenomena induced by earthquakes might occur. Since such phenomena are generally associated to permanent soil displacement, the related deformations could be not tolerated by the pipelines, causing structural breaks and/or the losses of fluid containment. On the basis of a large collection of damage occurred to pipelines during recent earthquakes, a class of fragility curves was built up for underground structures underground failure. These curves were given as the probability of the occurrence of certain damage in a pipeline segment as a function of a seismic parameter. Therefore, compared to the existing formulations based on the estimation of a repair rate, RR, this study gives fragility curves which are directly useable on HAZUS-like platform, similarly to punctual structures, as above ground tanks. These empirical formulations could be easily treated in order to obtain tools for the estimation of seismic vulnerability, implemented in numerical codes for QRA (Quantitative Risk Analyses) of industrial plants. For this purpose, in this paper, the probit parameters and the threshold values are also given.

Published
2013
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4. Seismic Vulnerability of Wastewater Treatment Plants

Author

A. Panico, G. Lanzano, E. Salzano, F. Santucci De Magistris, and G. Fabbrocino

Subjects
Chemical engineering, TP155-156, Computer engineering. Computer hardware, TK7885-7895
Abstract

Wastewater treatment systems are complex networks composed by several interconnected elements, each of them characterized by specific seismic vulnerability. In the aftermath of an earthquake it is essential that such systems are fully or at least partially operating for the correct operation. Furthermore, the system failure can result in the deterioration of the environment by leakage of untreated wastewater on soil and/or its discharge into superficial water bodies. This paper deals with the assessment of seismic vulnerability of wastewater treatment plants by analyzing the effects of past earthquakes and taking into account the following factors: (i) plant size (small, medium and large); (ii) typology of wastewaters treated (municipal and industrial); (iii) treatment level performed (primary, secondary and tertiary); (iv) main causes of damages (soil/structure dynamic interaction and inertial overload); (v) elements damaged (structural, e.g. tank walls and bottom, and non-structural, e.g sludge scrapers, baffles, aerators, mechanical mixers). Historical seismic data for each combination of the previously listed factors will be given when available, in order to highlight common features and differences. The final aim of this work is to provide fragility curves and threshold values with respect to the main seismic intensity parameters and considering either the loss of control or the leak of wastewater in the ground from containment system. Once validated such curves could be successfully and easily used implemented into existing or new Quantitative Risk Analysis (QRA) tools or for land-use planning methodologies.

Published
2013
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5. Performance Assessment of Continuous Buried Pipelines Under Earthquake Loadings

Author

G. Lanzano, E. Salzano, F. Santucci De Magistris, and G. Fabbrocino

Subjects
Chemical engineering, TP155-156, Computer engineering. Computer hardware, TK7885-7895
Abstract

Industrial plants are complex systems that need stringent requirements to ensure structural safety. If large amount of toxic or flammable materials are handled, the consequences of failures can affect wide surrounding areas. The prediction and prevention of possible accidental scenarios triggered by the interaction of natural disaster with industrial equipment depend upon the reliability of available tools for structural design and hazard assessment. In this paper, attention is focused on industrial pipelines and on damages suffered by these structures under seismic sequences. Available data have been classified on the basis of seismological, geotechnical, structural and performance parameters, in order to assess the main factors affecting the seismic vulnerability of pipelines. An observational correlation between pipeline performance and relevant earthquake intensity measures for both transient and permanent deformations is derived. Moreover, compared to the available literature performance parameters based on a repair ratio, new fragility formulations have been built on the basis of the failure probability of pipelines. This circumstance provided some interesting remarks on the loss of containment, which has been largely demonstrated as the main issue for qualitative and quantitative risk assessment depending on relevant failure mechanisms.

Published
2013
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6. An Observational Analysis of Seismic Vulnerability of Industrial Pipelines

Author

G. Lanzano, E. Salzano, F. Santucci De Magistris, and G. Fabbrocino

Subjects
Chemical engineering, TP155-156, Computer engineering. Computer hardware, TK7885-7895
Abstract

Industrial plants are complex systems that need stringent requirement for structural safety, as large amount of toxic and flammable materials are often handled and consequences of failures can affect wide surrounding areas. Prediction and prevention of possible accidental scenarios, triggered by the interaction of natural hazard such as earthquakes with industrial equipment depend upon the reliability of available tools for structural design and assessment. In this paper, attention is focussed on industrial pipelines and on damages suffered by such structures during recent earthquake sequences. Available data were classified on the basis of different correlated issues as seismological, geotechnical, structural and performance parameters, in order to assess the main factors affecting their seismic vulnerability. Results provided a preliminary correlation of pipeline performance and relevant earthquake intensity measures. Some remarks on the loss of containment, which has been largely demonstrated as the main issue for qualitative and quantitative risk assessment, in relation with relevant failure mechanisms, are also provided.

Published
2012
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7. Multifragmentation threshold in 93Nb+natMg collisions at 30 MeV/nucleon

Author

M.F. Rivet, S. Pirrone, E. Rosato, M. Papa, N. Le Neindre, M. Pârlog, B. Borderie, F. Porto, D. Guinet, J.D. Frankland, S. Lo Nigro, G. Cardella, Chimera Collaborations, A. Pagano, P. Guazzoni, E. Vient, M. Vigilante, S. Femino, F. Giustolisi, O. Lopez, L. Manduci, F. Rizzo, G. Lanzanó, S. Cavallaro, R. Bougault, J. P. Wieleckzo, L. Sperduto, P. Lautesse, Luisa Zetta, B. Tamain, E. de Filippo, G. Politi, G. Lanzalone, S. Aiello, A. Anzalone, R. Dayras, R. Roy, J. C. Steckmeyer, 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), 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), 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, 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), Dipartimento di Scienze Fisiche e Sezione (INFN), Istituto Nazionale di Fisica Nucleare (INFN)-Università degli studi di Napoli Federico II, Laboratoire de Physique Nucléaire (IPN), Université Laval [Québec] (ULaval), Laboratori Nazionali del Sud (LNS), Istituto Nazionale di Fisica Nucleare (INFN), Istituto Nazionale di Fisica Nucleare, Sezione di Catania (INFN), Università degli studi di Catania [Catania], Dipartimento di Fisica, Università di Messina, Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), collaboration INDRA et CHIMERA, Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), 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)-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare (INFN)-University of Naples Federico II = Università degli studi di Napoli Federico II, and Università degli studi di Catania = University of Catania (Unict)

Subjects
Nuclear and High Energy Physics, Particle physics, excitation energy, multifragmentation, Nuclear Theory, FOS: Physical sciences, Binary number, Astrophysics::Cosmology and Extragalactic Astrophysics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, GEMINI, 0103 physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, 010306 general physics, backtracing, Physics, 010308 nuclear & particles physics, Charge (physics), binary sequential, SMM, 25.70.-z 25.70.Pq 24.10.Pa, Nucleon, Energy (signal processing), Excitation
Abstract

We analyzed the $^{93}Nb$ on $^{nat}Mg$ reaction at 30 MeV/nucleon in the aim of disentangling binary sequential decay and multifragmentation decay close to the energy threshold, i.e. $\simeq 3$ MeV/nucleon. Using the backtracing technique applied to the statistical models GEMINI and SMM we reconstruct simulated charge, mass and excitation energy distributions and compare them to the experimental ones. We show that data are better described by SMM than by GEMINI in agreement with the fact that multifragmentation is responsible for fragment production at excitation energies around 3 MeV/nucleon., 16 pages, 12 figures, 5 tables Soumis \`a Nuclear Physics A

Published
2008

8. Persistence of odd-even staggering in charged-fragment yields from 112Sn + 58Ni collisions at 35 MeV/nucleon

Author

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

Subjects
HEAVY ION REACTIONS, High Energy Physics::Lattice, technology, industry, and agriculture, staggering, macromolecular substances, Nuclear Experiment
Abstract

Odd-even staggering effects on charge distributions are investigated for fragments produced in semiperipheral and central collisions of 112 Sn + 58 Ni at 35 MeV/nucleon. For fragments with Z :( 16 one observes a clear overproduction of even charges, which decreases for heavier fragments. Staggering persists up to Z ∼ 30. The 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.

Published
2012

9. Fragmentation studies with the CHIMERA detector at LNS in Catania: recent progress

Author

H. Wu, L. Auditore, J. Blicharska, M. Papa, G. Vannini, M. Trimarchi, S. M. Li, L. Zetta, Z. Majka, Angelo Pagano, S. Lo Nigro, M. L. Sperduto, T. Paduszynski, G. Lanzalone, G. Lanzanó, A. Chbihi, I. Skwira, M. Iacono-Manno, E. La Guidara, M.F Rivet, M. Bruno, J.P. Wieleczko, K. Siwek-Wilczyńska, Maria Colonna, R. Bougault, G.R. Sechi, E. Rosato, Monica Alderighi, Amalia Pop, V. Simion, J. Cibor, N. Le Neindre, J.C. Steckmeyer, F. Rizzo, F. Porto, E. De Filippo, L. Swiderski, P. Russotto, A. Anzalone, V. Baran, Zhigang Xiao, M. Bartolucci, R. Planeta, M. D'Agostino, J. Wilczynski, M. Di Toro, A. Bonasera, P. Guazzoni, A. Grzeszczuk, R. Dayras, S. Cavallaro, I. Berceanu, S. Russo, E. Geraci, F. Giustolisi, B. Borderie, J. Brzychczyk, M. Sassi, S. Kowalski, W. Gawlikowicz, E. Piasecki, A. Trifiro, Mariano Vigilante, G. Politi, L. Arena, S. Pirrone, W. Zipper, D. Guinet, G. Cardella, G. Manfredi, F. Amorini, C. Maiolino, M. Petrovici, M. B. Chatterjee, 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)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), A. Pagano, M. Alderighi, F. Amorini, A. Anzalone, L. Arena, L. Auditore, V. Baran, M. Bartolucci, 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, E. De Filippo, M. Di Toro, 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, S. Lo Nigro, C. Maiolino, Z. Majka, G. Manfredi, T. Paduszynski, M. Papa, M. Petrovici, E. Piasecki, S.Pirrone, R. Planeta, G. Politi, A. Pop, F. Porto, M.F. Rivet, E. Rosato, F. Rizzo, S. Russo, P. Russotto, M. Sassi, G. Sechi, V. Simion, K. Siwek-Wilczynska, I. Skwira, M.L. Sperduto, J.C. Steckmeyer, L. Swiderski, A. Trifiro`, M. Trimarchi, G. Vannini, M. Vigilante, J.P. Wieleczko, J. Wilczynski, H. Wu, Z. Xiao, L. Zetta, W. Zipper, and 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)

Subjects
Nuclear reaction, Nuclear and High Energy Physics, APPARATO DI RIVELAZIONE, TECNICHE DI IDENTIFICAZIONE, REAZIONI NUCLEARI SEMI-PERIFERICHE, PRODUZIONE DI FRAMMENTI DI MASSA INTERMEDIA, TEMPI DI PRODUZIONE DEI FRAMMENTI, Cyclotron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Particle identification, law.invention, Ion, Nuclear physics, law, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Physics, 010308 nuclear & particles physics, Detector, Charged particle, Time of flight, Nucleon
Abstract

The new detector CHIMERA, in its final 4π configuration, has been installed at Laboratori Nazionali del Sud (LNS) in Catania in January 2003. Beams of different energies ranging from protons to Au ions were delivered by the Tandem and the Super Conducting Cyclotron for nuclear reaction studies, in agreement with the approval of the Scientific Advisory Committee of LNS. Recent experimental results confirm very low energy thresholds of the trigger (below 0.5 MeV/nucleon), ensured within a wide dynamical range. Good characteristics of identification of light charged particles and heavy fragments have been obtained by using three detection techniques: Δ E-E , Δ E -time of flight, and the Pulse-Shape discrimination method. We present results of recent analysis concerning the production of intermediate mass fragments (IMF) in semi-peripheral collisions. Our results combined with theoretical Boltzmann-Nordheim-Vlasov simulations clearly demonstrate the presence of very fast processes of IMF production in the overlapping region of the target and projectile nuclei during re-separation, i.e. in the time scale comparable with the collision time. Evidence for slower, sequential-like production of IMF's is also shown.

Published
2004

10. Global features of dissipative processes in light heavy-ion collisions

Author

M. Duma, G. Immé, Mihai Petrovici, I. Berceanu, G. Lanzanó, Anton Andronic, D. Moisa, Jürgen Schnack, A. Bonasera, G. D'Erasmo, Angelo Pagano, G. Raciti, Hans Feldmeier, A. Pantaleo, Amalia Pop, V. Simion, and Nicola Colonna

Subjects
Physics, Nuclear and High Energy Physics, Reaction mechanism, Dynamics (mechanics), Dissipative system, Observable, Heavy ion, Atomic physics, Dissipation, Nuclear Experiment, Kinetic energy, Interaction time
Abstract

The 19 F + 27 Al and 19 F + 12 C collisions at incident energies of 111.4, 125, 136.9 MeV and 111.4, 136.9 MeV respectively, have been studied. Continuous energy and angular distributions for 5≤ Z ≤16 reaction products have been measured. The correlations between different physical observables show similar trends with the case of much heavier interacting systems. Thus, a complete dynamics, from quasielastic to complete dissipation regime, is evidenced also in the reactions between light nuclei. The interaction time, extracted from the experimental angular distributions, increases with increasing total kinetic energy loss from 10 −23 s up to 10 −21 s. Based on simple assumptions about the underlying microscopic reaction mechanisms, semiempirical relationships are suggested and applied to account for the systematic features of the element distributions measured in light-, medium- and heavy-nuclei collisions. Absolute cross sections for reaction and nonfusion processes are deduced from the experimental data. Comparison with microscopic dynamical models is presented.

Published
2001

11. Multifragmentation threshold in 93Nb+24Mg collisions at 30 MeV/nucleon

Author

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

Published
2008

12. Fusion and binary-decay mechanisms in the35Cl+24Mg system atE/A≈8MeV

Author

B. Heusch, M. L. Sperduto, A. Morsad, E. De Filippo, R. Nouicer, D. Mahboub, R. M. Freeman, G. Lanzanó, S. Cavallaro, B. Djerroud, Angelo Pagano, E. C. Pollacco, F. Haas, R. Legrain, C. Beck, R. Dayras, A. Hachem, and Stephen Sanders

Subjects
Physics, Nuclear and High Energy Physics, Fusion, Fission, Yield (chemistry), Evaporation, Binary number, Charge (physics), Atomic physics, Energy (signal processing), Spectral line
Abstract

Compound-nucleus fusion and binary-reaction mechanisms have been investigated for the ${}^{35}$Cl+${}^{24}$Mg system at an incident beam energy of E${}_{\mathrm{lab}}$= 282 MeV. Charge distributions, inclusive energy spectra, and angular distributions have been obtained for the evaporation residues and the binary fragments. Angle-integrated cross sections have been determined for evaporation residues from both the complete and incomplete fusion mechanisms. Energy spectra for binary fragment channels near the entrance-channel mass partition are characterized by an inelastic contribution that is in addition to a fully energy damped component. The fully damped component which is observed in all the binary mass channels can be associated with decay times that are comparable to, or longer than, the rotation period. The observed mass-dependent cross sections for the fully damped component are well reproduced by the fission transition-state model, suggesting a fusion followed by fission origin. The present data cannot, however, rule out the possibility that a long-lived orbiting mechanism accounts for part or all of this yield.

Published
1998

13. Pulse Shape Method applied to silicon detectors of CHIMERA array

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Optics, Silicon, chemistry, business.industry, Detector, chemistry.chemical_element, business, PULSE SHAPE ANALYSIS, Pulse (physics)
Abstract

Heavy ion studies with stable and exotic beams require the identification of nuclear frag- ments in a broad range of mass and atomic numbers. Recent progresses of the Pulse Shape Discrimination (PSD) method applied to the current signals of silicon detectors have en- couraged new studies in this field. The aim of our experimental study was to progress in this technique by applying PSD to charge signals produced in planar silicon detectors of large capacitance (1nF). A new electronic design based on a double constant-fraction discrimination of timing signals, was applied to some of the CHIMERA Si detectors, by using Tandem and Cyclotron beams delivered by the LNS in Catania. We obtained charge identification with energy threshold of about 4 AMeV from Z=1 up to fluorine and with good timing performances (direct injection mode). Our recent results strongly encourage for further application to 4π detection systems in the field of exotic beams.

Published
2004

14. Origin and decay-properties of binary fragments produced in the 35Cl+24Mg reaction at

Author

M. L. Sperduto, E. C. Pollacco, B. Djerroud, D. Mahboub, S. Cavallaro, Stephen Sanders, R. Dayras, G. Lanzanó, E. De Filippo, C. Beck, E. Berthoumieux, G. Di Natale, R. M. Freeman, A. Hachem, Angelo Pagano, B. Heusch, F. Haas, R. Legrain, and A. Morsad

Subjects
Physics, Nuclear and High Energy Physics, Binary number, Nuclear fusion, Atomic physics, Nuclear Experiment, Beam energy, Charged particle, Spectral line
Abstract

The properties of binary fragments produced in the 35 Cl+ 24 Mg fusion reaction at a beam energy of E Lab ≈8MeVA have been investigated by measurement of inclusive energy spectra, angular distributions and angular correlations between heavy fragments and evaporated charged particles. The fully damped components can be ascribed to a fusion-fission process.

Published
1995

15. Angular correlations of projectilelike and fission fragments in the reactionO16+238U at 110 MeV

Author

Angelo Pagano, M.C. Mermaz, S. Aiello, C. Milone, G. Lanzanó, E. De Filippo, and S. Lo Nigro

Subjects
Nuclear reaction, Physics, Nuclear and High Energy Physics, Angular momentum, Fission, Nuclear Theory, Coincidence, Nuclear physics, medicine.anatomical_structure, Angular correlation, medicine, Atomic physics, Nuclear Experiment, Anisotropy, Nucleus
Abstract

In-plane and out-of-plane angular correlations of fission fragments detected in coincidence with projectilelike residues produced in the nuclear collisions [sup 16]O+[sup 238]U at 110 MeV have been investigated. The data present the essential features of a targetlike sequential fission process. A quantitative description of the experimental angular anisotropies requires the storage in the fissioning nucleus of a mean angular momentum in agreement with a dominant mass transfer mechanism.

Published
1994

16. Electron Transfer Processes to Continuum in Near-Relativistic Ion-Atom Collisions

Author

S. Hagmann, Th. Stöhlker, A. Surzhykov, S. Fritzsche, D. Jakubassa-Amundsen, B. Najjari, A. Voitkiv, C. Kozhuharov, J. Ullrich, R. Moshammer, M. Nofal, A. Gumberidze, U. Spillmann, R. Reuschl, S. Heβ, S. Trotsenko, F. Bosch, D. Liesen, R. Dörner, H. Rothard, G. Lanzanó, E. de Filippo, Floyd D. McDaniel, and Barney L. Doyle

Subjects
Electron transfer, Electron capture, Chemistry, Ionization, Momentum transfer, Compton scattering, Radiative transfer, Electron, Atomic physics, Electron spectroscopy
Abstract

Theories for electron transfer to the continuum have encountered considerable difficulties to take into account the intrinsic many‐electron processes in the capture channel. This may partially be attributed to large momentum transfers involved and thus collision systems are mostly not in the realm of first order perturbation theories. For this reason we have studied collision systems where simultaneously distinct competing electron transfer processes are found to be active, like radiative (RECC) and non‐radiative electron capture to continuum (ECC) in the relativistic domain where one or two even active electrons are involved; here another, though distinct, transfer process, the projectile electron loss to continuum (ELC), permits additionally to study the dynamics of ionization very close to threshold. We have studied these electron transfer processes simultaneously in forward electron emission in two systems of different projectile Compton profile, U88++N2 and Sn47++N2 collisions using the forward elect...

Published
2009

17. Isoscaling in central $^{124]$Sn + $^{64}$Ni, $^{112}$Sn + $^{58}$Ni collisions at 35 A MeV

Author

A. Chbihi, J.C. Steckmeyer, M. Iacono-Manno, A. Italiano, J. Brzychczyk, S. Kowalski, E. La Guidara, V. Baran, E. Piasecki, M. Papa, G. Vannini, L. Zetta, F. Giustolisi, D. Guinet, Z. Majka, S. Lo Nigro, R. Barnà, J. Cibor, M. Trimarchi, M.F. Rivet, Maria Colonna, S. M. Li, Antonio Trifiro, Amalia Pop, Mariano Vigilante, M. Di Toro, C. Maiolino, G. Lanzanó, P. Guazzoni, R. Bougault, M. Petrovici, D. De Pasquale, F. Porto, Angelo Pagano, S. Cavallaro, A. Bonasera, M. Bartolucci, A. Grzeszczuk, S. Russo, L. Auditore, G. Cardella, S. Pirrone, W. Zipper, N. Le Neindre, M. L. Sperduto, E. Geraci, Bernard Borderie, G. Lanzalone, G. Manfredi, M. D'Agostino, P. Russotto, M. Alderighi, Zhigang Xiao, H. Wu, A. Anzalone, G. Politi, J.P. Wieleczko, M. Bruno, I. Berceanu, G.R. Sechi, V. Simion, Elio Rosato, E. De Filippo, J. Wilczynski, J. Blicharska, T. Paduszynski, 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), E. GERACI, M. ALDERIGHI, A. ANZALONE, L. AUDITORE, V. BARAN, R. BARNA', M. BARTOLUCCI, I. BERCEANU, J. BLICHARSKA, A. BONASERA, B. BORDERIE, R. BOUGAULT, BRUNO M., J. BRZYCHCZYK, G. CARDELLA, S. CAVALLARO, A. CHBIHI, J. CIBOR, M. COLONNA, M. D'AGOSTINO, E .DE FILIPPO, D. DE PASQUALE, M. DI TORO, F. GIUSTOLISI, A. GRZESZCZUK, P. GUAZZONI, D. GUINET, M. IACONO-MANNO, A. ITALIANO, S. KOWALSKI, E. LA GUIDARA, G. LANZALONE, G. LANZANO', N. LE NEINDRE, S. LI, S. LO NIGRO, C. MAIOLINO, Z. MAJKA, G. MANFREDI, T. PADUSZYNSKI, A. PAGANO, M. PAPA, M. PETROVICI, E. PIASECKI, S. PIRRONE, G. POLITI, A. POP, F. PORTO, M. F. RIVET, E. ROSATO, S. RUSSO, P. RUSSOTTO, G. SECHI, V. SIMION, M. L. SPERDUTO, J. C. STECKMEYER, A. TRIFIRO, M. TRIMARCHI, G. VANNINI, M. VIGILANTE, J. P. WIELECZKO, J. WILCZYNSKI, H. WU, Z. XIAO, 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
Nuclear reaction, Nuclear and High Energy Physics, Phase transition, Heavy ion–nucleus reactions, Nuclear isospin, Nuclear fragmentation, MATERIA NUCLEARE, Nuclear Theory, Hadron, 112Sn(58Ni, FRAMMENTAZIONE NUCLEARE, ISOSPIN, REAZIONI NUCLEARI FRA IONI PESANTI, ISOTOPI, Elementary particle, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, 25.70.-z, 25.70.Pq, 24.10.Pa, 02.50.Sk, 124Sn(64Ni, Isotopes, 0103 physical sciences, Neutron, Nuclear Experiment, 010306 general physics, Nuclear matter, X), Physics, 010308 nuclear & particles physics, Baryon, Isospin, E=35 A MeV, Nuclear reactions, Atomic physics, Nucleon
Abstract

124 Sn+ 64 Ni and 112 Sn+ 58 Ni reactions at 35 A MeV incident energy were studied by using the 688 Si–CsI telescopes of the forward part (1°⩽ θ lab ⩽30°) of CHIMERA multi-detector. The most central part, 1% of the total measured cross section was selected by means of a multidimensional analysis of the experimental observables. The detected isotopes of light fragments (3⩽ Z ⩽8) provided information on breakup temperatures of the emitting sources. The space–time structure of these sources was deduced from fragment correlations. An odd–even effect in the fragment production, enhanced by the isospin of the entrance channel, was observed. Freeze-out unbound neutron-to-proton relative densities for both studied reactions have been deduced, indicating for a possible isospin distillation mechanism related to a phenomenon of the liquid–gas phase transition in asymmetric systems.

Published
2004

18. Isotope correlations as a probe for freeze-out charaterization: central $^{124}$Sn+$^{64}$Ni, $^{112}$Sn+$^{58}$Ni collisions

Author

S. Pirrone, M. L. Sperduto, Bernard Borderie, Monica Alderighi, M. Di Toro, J. Brzychczyk, P. Russotto, L. Zetta, Z. Majka, S. Lo Nigro, F. Porto, S. Kowalski, Maria Colonna, M. Bartolucci, A. Anzalone, Angelo Pagano, M. Papa, G. Vannini, S. Russo, Amalia Pop, S. Cavallaro, J. Wilczynski, G.R. Sechi, V. Simion, T. Paduszynski, A. Chbihi, D. Guinet, J. Blicharska, J.C. Steckmeyer, E. Piasecki, M. Bruno, G. Cardella, M.F. Rivet, M. Iacono-Manno, Elio Rosato, E. De Filippo, G. Lanzalone, F. Giustolisi, Marina Trimarchi, G. Manfredi, Antonio Trifiro, E. Geraci, P. Guazzoni, Zhigang Xiao, H. Wu, I. Berceanu, Mariano Vigilante, A. Grzeszczuk, G. Lanzanó, R. Bougault, V. Baran, S. M. Li, E. La Guidara, M. Petrovici, J. Cibor, A. Bonasera, W. Zipper, N. Le Neindre, J.P. Wieleczko, C. Maiolino, M. D'Agostino, Lucrezia Auditore, G. Politi, 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)-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), E. GERACI, M. ALDERIGHI, A. ANZALONE, L. AUDITORE, V. BARAN, M. BARTOLUCCI, I. BERCEANU, J. BLICHARSKA, A. BONASERA, B. BORDERIE, R. BOUGAULT, BRUNO M., J. BRZYCHCZYK, G. CARDELLA, S. CAVALLARO, A. CHBIHI, J. CIBOR, M. COLONNA, M. D'AGOSTINO, E .DE FILIPPO, M. DI TORO, F. GIUSTOLISI, A. GRZESZCZUK, P. GUAZZONI, D. GUINET, M. IACONO-MANNO, S. KOWALSKI, E. LA GUIDARA, G. LANZALONE, G. LANZANO', N. LE NEINDRE, S. LI, S. LO NIGRO, C. MAIOLINO, Z. MAJKA, G. MANFREDI, T. PADUSZYNSKI, A. PAGANO, M. PAPA, M. PETROVICI, E. PIASECKI, S. PIRRONE, G. POLITI, A. POP, F. PORTO, M. F. RIVET, E. ROSATO, S. RUSSO, P. RUSSOTTO, G. SECHI, V. SIMION, M. L. SPERDUTO, J. C. STECKMEYER, A. TRIFIRO, M. TRIMARCHI, G. VANNINI, M. VIGILANTE, J. P. WIELECZKO, J. WILCZYNSKI, H. WU, Z. XIAO, L. ZETTA, W. ZIPPER, 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and 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)

Subjects
Nuclear reaction, RAPPORTO FRA DENSITA’ FRA NEUTRONI E PROTONI, Nuclear and High Energy Physics, TEMPERATURA E VOLUME DELLA SORGENTE, Proton, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, SORGENTE ECCITATA, 0103 physical sciences, Incident energy, Neutron, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, DIMENSIONE, Physics, Isotope, 010308 nuclear & particles physics, REAZIONI NUCLEARI CENTRALI, RESE DI ISOTOPI, Characterization (materials science), Volume (thermodynamics), Yield (chemistry), Atomic physics
Abstract

124Sn+64Ni and 112Sn+58Ni reactions at 35 AMeV incident energy were studied with the forward part of CHIMERA multi-detector. The most central collisions were selected by means of a multidimensional analysis. The characteristics of the source formed in the central collisions, as size, temperature and volume, were inspected. The measured isotopes of light fragments (3, 4 pages, Contribution to 8th International Conference on Nucleus-Nucleus Collisions, Moscow 2003

Published
2003

19. Mass and charge identification of fragments detected with the Chimera Silicon-CsI(Tl) telescopes

Author

N Le Neindre, M Alderighi, A Anzalone, R Barnà, M Bartolucci, I Berceanu, B Borderie, R Bougault, M Bruno, G Cardella, S Cavallaro, M D'Agostino, R Dayras, E De Filippo, D De Pasquale, E Geraci, F Giustolisi, A Grzeszczuk, P Guazzoni, D Guinet, M Iacono-Manno, A Italiano, S Kowalski, A Lanchais, G Lanzanó, G Lanzalone, S Li, S Lo Nigro, C Maiolino, G Manfredi, D Moisa, A Pagano, M Papa, T Paduszynski, M Petrovici, E Piasecki, S Pirrone, G Politi, A Pop, F Porto, M.F Rivet, E Rosato, S Russo, S Sambataro, G Sechi, V Simion, M.L Sperduto, J.C Steckmeyer, C Sutera, A Trifirò, L Tassan-Got, M Trimarchi, G Vannini, M Vigilante, J Wilczynski, H Wu, Z Xiao, L Zetta, W Zipper, Guesnon, Sandrine, 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), Institut de Physique Nucléaire de Lyon (IPNL), 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)

Subjects
Physics, Nuclear and High Energy Physics, Silicon, 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], chemistry.chemical_element, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, chemistry, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Instrumentation, Nuclear Experiment
Abstract

Mass and charge identification of charged products detected with Silicon-CsI(Tl) telescopes of the Chimera apparatus is presented. An identification function, based on the Bethe-Bloch formula, is used to fit empirical correlation between Delta E and E ADC readings, in order to determine, event by event, the atomic and mass numbers of the detected charged reaction products prior to energy calibration., 24 pages, 7 .jpg figures, submitted to Nucl.Instr.A

Published
2002

20. Sequential Fission Decay Induced by Transfer Reactions at the Coulomb Barrier

Author

G. Lanzanó, A. Anzalone, G. Politi, S. Lo Nigro, S. Sambataro, D. Mahboub, G. Lanzalone, S. Cavallaro, F. Porto, F. Giustolisi, E. Geraci, S. Pirrone, E. De Filippo, Angelo Pagano, and S. Aiello

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Transfer (group theory), Fission, Projectile, Nuclear Theory, Coulomb barrier, Atomic physics, Nuclear Experiment, Coincidence
Abstract

In-plane and out-of-plane angular correlations of fission fragments detected in coincidence with projectile residues produced in nuclear collisions ${}^{19}{\mathrm{F}+}^{238}\mathrm{U}$ at 115, 120, and 125 MeV have been investigated. The data are described assuming sequential fission decay of targetlike nuclei produced in peripheral transfer reactions.

Published
2001

21. Study of the fusion-fission process in the $^{35}$Cl+$^{24}$Mg reactions

Author

C. Beck, R. Nouicer, D. Mahboub, B. Djerroud, R.M. Freeman, A. Hachem, T. Matsuse, Sl. Cavallaro, E. De Filippo, G. Lanzanó, A. Pagano, M.L. Sperduto, R. Dayras, E. Berthoumieux, R. Legrain, E. Pollacco, Heyd, Yvette, Institut de Recherches Subatomiques (IReS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Process of innovation, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Theory, Binary number, FOS: Physical sciences, ARPANET, Fusion fission, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nucl-ex, Coincidence, Sociotechnical hybrid, Nuclear physics, Online communities, History of Internet, Technical imaginary, Time-sharing's computers, Multiplicity (chemistry), Nuclear Experiment (nucl-ex), Nuclear Experiment, Virtual communities, Physics, Fusion, Phase space, Excited state, Nucleon
Abstract

Fusion-fission and fully energy-damped binary processes of the $^{35}$Cl+$^{24}$Mg reaction were investigated using particle-particle coincidence techniques at a $^{35}$Cl bombarding energy of E$_{lab}$ $\approx$ 8 MeV/nucleon. Inclusive data were also taken in order to determine the partial wave distribution of the fusion process. The fragment-fragment correlation data show that the majority of events arises from a binary-decay process with a relatively large multiplicity of secondary light-charged particles emitted by the two primary excited fragments in the exit channel. No evidence is observed for ternary-breakup processes, as expected from the systematics recently established for incident energies below 15 MeV/nucleon and for a large number of reactions. The binary-process results are compared with predictions of statistical-model calculations. The calculations were performed using the Extended Hauser-Feshbach method, based on the available phase space at the scission point of the compound nucleus. This new method uses temperature-dependent level densities and its predictions are in good agreement with the presented experimental data, thus consistent with the fusion-fission origin of the binary fully-damped yields., Comment: 30 pages standard REVTeX file, 10 eps Figures; to be published at the European Physical Journal A - Hadrons and Nuclei

Published
1998

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

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Binary number, FOS: Physical sciences, Nuclear physics, Coincident, Excited state, Nuclear fusion, Nuclear Experiment (nucl-ex), Nucleon, Ternary operation, Nuclear Experiment, Energy (signal processing)
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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23. RESPONSE FUNCTION OF A BAF2 DETECTOR TO ELECTRONS

Author

G. Lanzanó, G. F. Palama, H. de Vries, A. Pagano, R. Fonte, A. Insolia, C. W. de Jager, and G.V. Russo

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Monte carlo code, Detector, Dynamic Monte Carlo method, Electron, Function (mathematics), Statistical physics, Instrumentation, Computational physics
Abstract

The response function to electrons of a BaF 2 detector has been measured at 50, 100 and 150 MeV. The BaF 2 response functions are found to be in excellent agreement with computer simulation performed with the Monte Carlo code GEANT3.

Published
1991

24. Dissipative processes in19F +27Al at 5.9 MeV/A

Author

Anton Andronic, G. Imme, M. Duma, Nicola Colonna, G. Lanzanó, Amalia Pop, Angelo Pagano, M. Petrovici, G. D'Erasmo, I. Berceanu, G. Raciti, A. BuţĂ, A. Bonasera, V. Simion, A. Pantaleo, and D MoisĂ

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Theoretical physics, Dissipative system, Nuclear fusion, Mechanism (sociology)
Abstract

Experimental evidence on the complete dynamics, from quasielastic (QE) to completely dissipated orbiting in the19F+27Al system at 5.9 MeV/A is presented. Comparison with the systematics for much heavier systems speaks in favour of a similar underlying mechanism.

Published
1996

25. Probing clustering in excited alpha-conjugate nuclei

Author

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

Subjects
Physics, QC1-999
Abstract

The fragmentation of quasi-projectiles from the nuclear reaction 40Ca+12C at 25 MeV per nucleon bombarding energy was used to produce α-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 α-particle clustering from excited 16O, 20Ne and 24Mg is reported. Keywords: Heavy ion reactions, alpha-particle clustering, alpha-conjugate nuclei, Cluster models

Published
2016
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26. Neutron emission from the compound nucleus 26Al

Author

L. Rodriguez, Angelo Pagano, G. Piccitto, Marcello Baldo, G. Lanzanó, A. Palmeri, R. Dayras, S. Aiello, Y. Cassagnou, and J. Fouan

Subjects
Physics, Nuclear and High Energy Physics, Neutron emission, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Neutron stimulated emission computed tomography, Particle decay, medicine.anatomical_structure, Neutron cross section, medicine, Nuclear fusion, Neutron, Atomic physics, Nuclear Experiment, s-process, Nucleus
Abstract

Neutron time-of-flight spectra have been measured in coincidence with individual nuclei produced in the fusion reaction 14 N+ 12 C induced by the bombardment of a 12 C target with a 48 MeV 14 N beam. Whereas for the residual nuclei 21 Na(αn), 20 Ne(αpn) and 23 Na(2pn), the observed neutron spectra are well reproduced in intensity and shape by statistical model calculations, this is not the case for the residual nucleus 24 Mg(pn). In order to reproduce the experimental neutron spectra, it seems necessary to assume that around an excitation energy of 16 to 18 MeV in 24 Mg, gamma-ray emission is able to compete favourably against particle decay.

Published
1985

27. Systematic trends of the element distributions in light heavy ion dissipative processes. Charge variance systematics revisited

Author

G. Lanzanó, Nicola Colonna, Amalia Pop, M. Duma, G. Raciti, D. Moisǎ, I. Berceanu, A. Buţǎ, G. D'Erasmo, Angelo Pagano, V. Simion, Mihai Petrovici, A. Pantaleo, Anton Andronic, and G. Immé

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Angular momentum, Distribution (mathematics), Dissipative system, Charge (physics), Variance (accounting), Function (mathematics), Impact parameter, Kinetic energy
Abstract

Experimental and model dependent correlations between the variance of the element distribution and the total kinetic energy loss (TKEL) or entrance channel impact parameter in light heavy ion dissipative processes at low energy are established. The present results and data for much heavier systems are used to revisit the systematics of the charge variance as a function of the ratio between TKEL and the grazing angular momentum (lgr).

28. 35Cl+12C asymmetrical fission excitation functions.

Author

Beck C, Mahboub D, Nouicer R, Matsuse T, Djerroud B, Freeman RM, Haas F, Hachem A, Morsad A, Youlal M, Sanders SJ, Dayras R, Wieleczko JP, Berthoumieux E, Legrain R, Pollacco E, Cavallaro S, De Filippo E, Lanzanó G, Pagano A, and Sperduto ML

Published
1996
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