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284 results on '"L. ZETTA"'

1. 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
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2. Correlations between emission timescale of fragments and isospin dynamics in ^{124}Sn+^{64}Ni and ^{112}Sn+^{58}Ni reactions at 35A MeV

Author

E. De Filippo, A. Pagano, P. Russotto, F. Amorini, A. Anzalone, L. Auditore, V. Baran, I. Berceanu, B. Borderie, R. Bougault, M. Bruno, T. Cap, G. Cardella, S. Cavallaro, M. B. Chatterjee, A. Chbihi, M. Colonna, M. D'Agostino, R. Dayras, M. Di Toro, J. Frankland, E. Galichet, W. Gawlikowicz, E. Geraci, A. Grzeszczuk, P. Guazzoni, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzanò, N. Le Neindre, C. Maiolino, M. Papa, E. Piasecki, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, K. Schmidt, K. Siwek Wilczyńska, I. Skwira Chalot, A. Trifirò, M. Trimarchi, G. Verde, J. P. Wieleczko, J. Wilczyński, L. Zetta, W. Zipper, LOMBARDO, IVANO, ROSATO, ELIO, VIGILANTE, MARIANO, E. De Filippo, A. Pagano, P. Russotto, F. Amorini, A. Anzalone, L. Auditore, V. Baran, I. Berceanu, B. Borderie, R. Bougault, M. Bruno, T. Cap, 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, A. Grzeszczuk, P. Guazzoni, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzanò, N. Le Neindre, I. Lombardo, C. Maiolino, M. Papa, E. Piasecki, 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, G. Verde, M. Vigilante, J. P. Wieleczko, J. Wilczyński, L. Zetta, W. Zipper, E., De Filippo, A., Pagano, P., Russotto, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, B., Borderie, R., Bougault, M., Bruno, T., Cap, 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, A., Grzeszczuk, P., Guazzoni, S., Kowalski, E., La Guidara, G., Lanzalone, G., Lanzanò, N., Le Neindre, Lombardo, Ivano, C., Maiolino, M., Papa, E., Piasecki, S., Pirrone, R., Płaneta, G., Politi, A., Pop, F., Porto, M. F., Rivet, F., Rizzo, Rosato, Elio, K., Schmidt, K., Siwek Wilczyńska, I., Skwira Chalot, A., Trifirò, M., Trimarchi, G., Verde, Vigilante, Mariano, J. P., Wieleczko, J., Wilczyński, L., Zetta, and W., Zipper

Subjects
timescale, isospin, semiperipheral collisions, intermediate mass fragment, isospin migration, HEAVY ION REACTIONS, emission timescale, Nuclear Theory, Nuclear Experiment, fragment emission
Abstract

We present a new experimental method to correlate the isotopic composition of intermediate mass fragments (IMF) emitted at midrapidity in semiperipheral 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 quasispectator 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.

Published
2012

3. The symmetry energy at suprasaturation density and the ASY-EOS experiment at GSI

Author

S. Santoro, P. Lasko, Luis Acosta, D. G. Sarantites, S. Al-Homaidhi, K. Boretzky, Giuseppe Verde, F. Porto, S. Pirrone, Z. Chajecki, E. V. Pagano, D. M. Rossi, Zbigniew Sosin, Qingfeng Li, A. Wieloch, Sherry Yennello, F. Rizzo, L. Stuhl, M. B. Tsang, L. Zetta, Roy Crawford Lemmon, S. Kupny, Maria Colonna, M. Kiš, Martin Veselsky, P. Zambon, C. Caesar, F. Riccio, P. Cammarata, Yvonne Leifels, I. Skwirczyńska, J. Benlliure, Marina Trimarchi, Chiara Guazzoni, Mariano Vigilante, A. Trifirò, P. Russotto, Z. Basrak, A. Chbihi, L. W. May, W. Trautmann, M. Di Toro, Piotr Pawłowski, B. Czech, E. La Guidara, M.D. Cozma, W. Reviol, A. Pagano, P. Guazzoni, H. H. Wolter, Michael Famiano, J. Brzychczyk, E. De Filippo, M. Al-Garawi, G. Cardella, G. Lanzalone, Z. Matthews, Igor Gašparić, Jack Winkelbauer, W. G. Lynch, A. Budzanowski, N. Kurz, L. Grassi, M. Mostazo, A. Le Fèvre, Elio Rosato, Paola Marini, M. Zoric, Thomas Aumann, A. Krasznahorkay, Herbert A. Simon, Riccardo Introzzi, Yongjia Wang, P. Wigg, K. Kezzar, Abdulrahman Alajlan, J. Łukasik, P. Z. Wu, Yassid Ayyad, Triestino Minniti, Ivano Lombardo, Lucrezia Auditore, G. Politi, M. Boisjoli, F. Amorini, Marielle Chartier, Lauren Heilborn, Tadaaki Isobe, Matthias Heil, Michele Papa, M. Adamczyk, S. Gannon, 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 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), 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), De Filippo, E., Russotto, P., Acosta, L., Adamczyk, M., Al-Ajlan, A., Al-Garawi, M., Al-Homaidhi, S., Amorini, F., Auditore, L., Aumann, T., Ayyad, Y., Basrak, Z., Benlliure, J., Boisjoli, M., Boretzky, K., Brzychczyk, J., Budzanowski, A., Caesar, C., Cardella, G., Cammarata, P., Chajecki, Z., Chartier, M., Chbihi, A., Colonna, M., Cozma, M. D., Czech, B., Di Toro, M., Famiano, M., Gannon, S., Gašparić, I., Grassi, L., Guazzoni, C., Guazzoni, P., Heil, M., Heilborn, L., Introzzi, R., Isobe, T., Kezzar, K., Kiš, M., Krasznahorkay, A., Kupny, S., Kurz, N., La Guidara, E., Lanzalone, G., Lasko, P., Le Fèvre, A., Leifels, Y., Lemmon, R. C., Li, Q. F., Lombardo, I., Łukasik, J., Lynch, W. G., Marini, P., Matthews, Z., May, L., Minniti, T., Mostazo, M., Pagano, A., Pagano, E. V., Papa, M., Pawłowski, P., Pirrone, S., Politi, G., Porto, F., Reviol, W., Riccio, F., Rizzo, F., Rosato, E., Rossi, D., Santoro, S., Sarantites, D. G., Simon, H., Skwirczynska, I., Sosin, Z., Stuhl, L., Trautmann, W., Trifirò, A., Trimarchi, M., Tsang, M. B., Verde, G., Veselsky, M., Vigilante, M., Wang, Yongjia, Wieloch, A., Wigg, P., Winkelbauer, J., Wolter, H. H., Wu, P., Yennello, S., Zambon, P., Zetta, L., and Zoric, M.

Subjects
energy: symmetry, QC1-999, Hadron, Nuclear Theory, Elementary particle, Astrophysics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Nuclear physics, Physics and Astronomy (all), 0103 physical sciences, Neutron, ddc:530, 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Elliptic flow, gold, charged particle, Charged particle, Symmetry (physics), Darmstadt Lab, n: elliptic flow, nucleus: equation of state, density dependence, density, Baryon, Nucleon, light nucleus, saturation: density, experimental results
Abstract

International audience; The ASY-EOS experiment at GSI laboratory measured the direct and elliptic flow of neutrons and light charged particles in the reaction 197Au+197 Au at 400 A MeV incident energy. The ratio of elliptic flow of neutrons with respect to that of the light charged particles was used as main experimental observable to probe the density dependence of the symmetry energy term of the nuclear equation of state. Results, obtained by comparison of the experimental data with the UrQMD model predictions, strongly support a moderately soft to linear density dependence of the symmetry energy at suprasaturation densities below 2ρ0.

Published
2016
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4. A PHOTO-CIDNP INVESTIGATION OF TYROSINE MOBILITY AND EXPOSURE IN HUMAN BETA-ENDORPHIN IN THE PRESENCE OF PHOSPHOLIPID MICELLES

Author

L. Zetta, P. J. Hore, and Robert Kaptein

Subjects
Circular dichroism, CIDNP, Biophysics, Phospholipid, Cell Biology, Lipid micelle, Photochemistry, Biochemistry, Micelle, Cross relaxation, chemistry.chemical_compound, chemistry, (NMR), Structural Biology, Photo-CIDNP, Human β-endorphin, Genetics, Organic chemistry, Tyrosine mobility, Cross-relaxation, Tyrosine, Molecular Biology, N-dodecylphosphorylcholine
Published
2016

5. ASY-EOS experiment at GSI: investigating the symmetry enenrgy at supra-satutation densities

Author

P. Russotto, M. Chartier, M. D. Cozma, E. De Filippo, A. Le Fevre, S. Gannon, A. Gašsparić, M. Kiš, S. Kupny, Y. Leifels, R. Lemmon, Q. Li, J. Lukasik, P. Marini, P. Pawlowski, S. Santoro, W. Trautmann, M. Veselsky, L. Acosta, M. Adamczyk, A. Al Ajlan, M. Al Garawi, S. Al Homaidhi, F. Amorini, L. Auditore, T. Aumann, Y. Ayyad, V. Baran, Z. Basrak, R. Bassini, J. Benlliure, C. Boiano, C. Boisjoli, K. Boretzky, J. Brzychczyk, A. Budzanowski, G. Cardella, P. Cammarata, Z. Chajecki, A. Chbihi, M. Colonna, B. Czech, M. Di Toro, M. Famiano, V. Greco, L. Grassi, C. Guazzoni, P. Guazzoni, M. Heil, L. Heilborn, R. Introzzi, T. Isobe, K. Kezzar, A. Krasznahorskay, N. Kurz, E. La Guidara, G. Lanzalone, P. Lasko, W. G. Lynch, Z. Matthews, L. May, T. Minniti, M. Mostazo, A. Pagano, M. Papa, S. Pirrone, R. Pleskac, G. Politi, F. Porto, R. Reifarth, W. Reisdorf, F. Riccio, F. Rizzo, D. Rossi, H. Simon, I. Skwirczynska, Z. Sosin, L. Stuhl, A. Trifirò, M. Trimarchi, M. B. Tsang, G. Verde, A. Wieloch, P. Wigg, H. H. Wolter, P. Wu, S. Yennello, P. Zambon, L. Zetta, M. Zoric, LOMBARDO, IVANO, ROSATO, ELIO, VIGILANTE, MARIANO, S. Lunardi, P.G. Bizzeti, C. Bucci, M. Chiari, A. Dainese, P. Di Nezza, R. Menegazzo, A. Nannini, C. Signorini, J.J. Valiente-Dobon, P., Russotto, M., Chartier, M. D., Cozma, E., De Filippo, A., Le Fevre, S., Gannon, A., Gašsparić, M., Kiš, S., Kupny, Y., Leifel, R., Lemmon, Q., Li, J., Lukasik, P., Marini, P., Pawlowski, S., Santoro, W., Trautmann, M., Veselsky, L., Acosta, M., Adamczyk, A., Al Ajlan, M., Al Garawi, S., Al Homaidhi, F., Amorini, L., Auditore, T., Aumann, Y., Ayyad, V., Baran, Z., Basrak, R., Bassini, J., Benlliure, C., Boiano, C., Boisjoli, K., Boretzky, J., Brzychczyk, A., Budzanowski, G., Cardella, P., Cammarata, Z., Chajecki, A., Chbihi, M., Colonna, B., Czech, M., Di Toro, M., Famiano, V., Greco, L., Grassi, C., Guazzoni, P., Guazzoni, M., Heil, L., Heilborn, R., Introzzi, T., Isobe, K., Kezzar, A., Krasznahorskay, N., Kurz, E., La Guidara, G., Lanzalone, P., Lasko, Lombardo, Ivano, W. G., Lynch, Z., Matthew, L., May, T., Minniti, M., Mostazo, A., Pagano, M., Papa, S., Pirrone, R., Pleskac, G., Politi, F., Porto, R., Reifarth, W., Reisdorf, F., Riccio, F., Rizzo, Rosato, Elio, D., Rossi, H., Simon, I., Skwirczynska, Z., Sosin, L., Stuhl, A., Trifirò, M., Trimarchi, M. B., Tsang, G., Verde, Vigilante, Mariano, A., Wieloch, P., Wigg, H. H., Wolter, P., Wu, S., Yennello, P., Zambon, L., Zetta, and M., Zoric

Subjects
flow, NUCLEAR COLLISIONS
Abstract

The elliptic-flow ratio of neutrons with respect to protons or light complex particles in reactions of heavy-ions at pre-relativistic energies has been proposed as an observable sensitive to the strength of the symmetry term of the nuclear equation of state at supra-saturation densities. The results obtained from the existing FOPI/LAND data for 197Au+197Au collisions at 400 MeV/nucleon in comparison with the UrQMD model simulations favoured a moderately soft symmetry term, but suffer from a considerable statistical uncertainty. These results have been confirmed by an independent analysis based on the Tübingen QMD simulations. In order to obtain an improved data set for Au+Au collisions and to extend the study to other systems, a new experiment was carried out at the GSI laboratory by the ASY-EOS collaboration. The present status of the data analysis is reported

Published
2014

6. Probing the symmetry energy at low density using observables from neck fragmentation

Author

G. Cardella, Lucrezia Auditore, M. Trimarchi, Michele Papa, R. Planeta, A. Trifirò, A. Grzeszczuk, L. Zetta, Maria Colonna, E. La Guidara, Mariano Vigilante, G. Politi, F. Porto, Giuseppe Verde, F. Rizzo, L. Acosta, S. Pirrone, C. Maiolino, K. Siwek-Wilczyńska, E. V. Pagano, I. Skwira-Chalot, F. Amorini, Ji-Youn Han, C. Agodi, J. Wilczyński, E. Piasecki, Triestino Minniti, G. Lanzalone, A. Pagano, P. Guazzoni, R. Gianì, I. Berceanu, E. Geraci, Ivano Lombardo, Amalia Pop, V. Baran, T. Cap, L. Quattrocchi, L. Grassi, P. Russotto, Elio Rosato, E. De Filippo, L. Francalanza, S. Lunardi, P.G. Bizzeti, C. Bucci, M. Chiari, A. Dainese, P. Di Nezza, R. Menegazzo, A. Nannini, C. Signorini, J.J. Valiente-Dobon, E., Defilippo, L., Acosta, C., Agodi, F., Amorini, A., Anzalone, L., Auditore, V. Baran I., Berceanu, T., Cap, G., Cardella, M., Colonna, L., Francalanza, E., Geraci, R., Gianì, L., Grassi, A., Grzeszcuk, P., Guazzoni, J., Han, E., La Guidara, G., Lanzalone, Lombardo, Ivano, C., Maiolino, T., Minniti, A., Pagano, E. V., Pagano, M., Papa, E., Piasecki, R., Planeta, S., Pirrone, G., Politi, A., Pop, F., Porto, L., Quattrocchi, F., Rizzo, Rosato, Elio, P., Russotto, K., Siwek Wilczynska, I., Skwira Chalot, A., Trifiró, M., Trimarchi, G., Verde, Vigilante, Mariano, J., Wilczynski, and L., Zetta

Subjects
Physics, Projectile, QC1-999, Observable, ionic collisions, isospin-dependent quantum, Fragmentation (mass spectrometry), fragmentation, fragments, Low density, Incident energy, NUCLEAR COLLISIONS, Atomic physics, Nuclear Experiment
Abstract

Semi-peripheral collisions of ^{64}Ni + ^{124}Sn in direct and inverse kinematics, at 35 A MeV incident energy, are studied to characterize the dynamical origin and align-ments properties of fragments emission at midrapidity. This emission is partly due to the fragmentation of a transient neck joining the projectile and target in the early stages of the reaction. Recently we exploited observable from neck fragmentation to constraint the density dependence of the symmetry energy. In this contribution we focus on the density evolution of the mid-rapidity source. An experimental survey is suggested to check if data are consistent with the formation of neck fragments in a dilute density region in contact with the projectile-like and target-like spectators at normal saturation density.

Published
2014

7. The ASY-EOS Experiment at GSI

Author

Z. Basrak, A. Chbihi, Piotr Pawłowski, H. H. Wolter, Giuseppe Verde, Z. Matthews, S. Pirrone, Z. Chajecki, Maria Colonna, M. B. Tsang, J. Łukasik, F. Amorini, F. Rizzo, Abdulrahman Alajlan, Triestino Minniti, P. Cammarata, Marielle Chartier, Chiara Guazzoni, A. Budzanowski, Zbigniew Sosin, Qingfeng Li, L. Grassi, B. Czech, Martin Veselsky, F. Riccio, W. G. Lynch, N. Kurz, Vincenzo Greco, Yvonne Leifels, M. Boisjoli, Attila Krasznahorkay, Sherry Yennello, L. Stuhl, Herbert A. Simon, Mariano Vigilante, W. Trautmann, P. Russotto, S. Al-Homaidhi, W. Reisdorf, F. Porto, A. Wieloch, P. Wigg, E. La Guidara, K. Kezzar, I. Skwirczyńska, L. Zetta, Paola Marini, M. Kiš, M. Zoric, Igor Gašparić, G. Lanzalone, R. Pleskac, Elio Rosato, Angelo Pagano, M. D. Cozma, Lauren Heilborn, L. Acosta, E. De Filippo, Riccardo Introzzi, Roy Crawford Lemmon, S. Gannon, D. Rossi, M. Di Toro, C. Boiano, S. Kupny, G. Cardella, Michele Papa, M. Adamczyk, J. Benlliure, Rene Reifarth, P. Z. Wu, A. Trifirò, Yassid Ayyad, Matthias Heil, Ivano Lombardo, M. Al-Garawi, Tadaaki Isobe, P. Guazzoni, Michael Famiano, M. Trimarchi, R. Bassini, A. Le Fèvre, Thomas Aumann, J. Brzychczyk, Lucrezia Auditore, G. Politi, L. W. May, K. Boretzky, M. Mostazo, S. Santoro, P. Lasko, V. Baran, P. Zambon, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-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), 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), Greco, V., Russotto, P., Chartier, M., Cozma, M. D., De Filippo, E., Le Fèvre, A., Gannon, S., Gašparić, I., Kiš, M., Kupny, S., Leifels, Y., Lemmon, R. C., Li, Q., Aukasik, J., Marini, P., Pawłowski, P., Trautmann, W., Acosta, L., Adamczyk, M., Al-Ajlan, A., Al-Garawi, M., Al-Homaidhi, S., Amorini, F., Auditore, L., Aumann, T., Ayyad, Y., Baran, V., Basrak, Z., Bassini, R., Benlliure, J., Boiano, C., Boisjoli, M., Boretzky, K., Brzychczyk, J., Budzanowski, A., Cardella, G., Cammarata, P., Chajecki, Z., Chbihi, A., Colonna, M., Czech, B., Di Toro, M., Famiano, M., Grassi, L., Guazzoni, C., Guazzoni, P., Heil, M., Heilborn, L., Introzzi, R., Isobe, T., Kezzar, K., Krasznahorkay, A., Kurz, N., La Guidara, E., Lanzalone, G., Lasko, P., Lombardo, I., Lynch, W. G., Matthews, Z., May, L., Minniti, T., Mostazo, M., Pagano, A., Papa, M., Pirrone, S., Pleskac, R., Politi, G., Porto, F., Reifarth, R., Reisdorf, W., Riccio, F., Rizzo, F., Rosato, E., Rossi, D., Santoro, S., Simon, H., Skwirczynska, I., Sosin, Z., Stuhl, L., Trifirò, A., Trimarchi, M., Tsang, M. B., Verde, G., Veselsky, M., Vigilante, M., Wieloch, A., Wigg, P., Wolter, H. H., Wu, P., Yennello, S., Zambon, P., Zetta, L., Zoric, M., Greco, Vincenzo, La Cognata, M., Pirrone, Sara, Rizzo, Francesca, Spitaleri, Claudio, and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
DENSITY-DEPENDENCE, COLLISIONS, heavy ion: scattering, energy: symmetry, QC1-999, Hadron, Nuclear Theory, Elementary particle, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Ion, Nuclear physics, Physics and Astronomy (all), quantum molecular dynamics: relativistic, symmetry energy, neutron flow, nuclear equation of state, heavy-ion scattering, relativistic quantum molecular dynamics, Darmstadt GSI FAIR, density dependence, transport theory, elliptic flow, 0.4 GeV/nucleon, 0103 physical sciences, Neutron, 010306 general physics, PROBE, Nuclear Experiment, numerical calculations, DETECTOR, Physics, density, DENSITY-DEPENDENCE, SYMMETRY ENERGY, COLLISIONS, FRAGMENTATION, DETECTOR, NEUTRON, PROBE, sezele, 010308 nuclear & particles physics, Elliptic flow, SYMMETRY ENERGY, charged particle, Charged particle, Baryon, n: flow, NEUTRON, Atomic physics, FRAGMENTATION, Nucleon, nucleus: equation of state
Abstract

International audience; The elliptic-flow ratio of neutrons with respect to protons or light complex particles in reactions of heavy ions at pre-relativistic energies has been proposed as an observable sensitive to the strength of the symmetry term of the nuclear equation of state at supra-saturation densities. In the ASY-EOS experiment at the GSI laboratory, flows of neutrons and light charged particles were measured for ^197Au+^197Au collisions at 400 MeV/nucleon. Flow results obtained for the Au+Au system, in comparison with predictions of the UrQMD transport model, confirm the moderately soft to linear density dependence of the symmetry energy deduced from the earlier FOPI-LAND data.

Published
2016
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8. Investigation of the Dependence of CsI(Tl) Scintillation Time Constants and Intensities on Particle's Energy, Charge and Mass Through Direct Fitting of Digitized Waveforms

Author

C. Boiano, G. Cardella, E. Geraci, Andrea Castoldi, F. Amorini, Chiara Guazzoni, G. Politi, F. Porto, Giuseppe Verde, F. Riccio, S. Pirrone, E. De Filippo, L. Grassi, F. Rizzo, P. Russotto, A. Pagano, P. Guazzoni, Ivano Lombardo, E. La Guidara, L. Zetta, and P. Zambon

Subjects
Physics, Nuclear and High Energy Physics, Scintillation, Range (particle radiation), sezele, CsI(Tl) scintillator, Particle detector, Particle identification, Ion, intermediate energy nuclear physics, Nuclear Energy and Engineering, particle identification, Ionization, Particle, Electrical and Electronic Engineering, Atomic physics, Energy (signal processing)
Abstract

The dependence of the CsI(Tl) scintillation time constants and intensities on the particle ionization profile is at the basis of the Charge and Mass identification technique for Light Charged Products in Intermediate Energy Nuclear Physics multi-detector arrays. The possibility of storing the digitized waveforms in true beam experiments allows performing further offline analyses and makes available a data set related to the interaction of different particle types in a wide energy range.

Published
2012
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9. Mobility, microstructure and MRI. DTI without a DTI black box: the art of making do

Author

M. Gussoni, F. Greco, A. Vezzoli, L. Zetta, VENTURI, LUCA, CREMONINI, MAURO ANDREA, S. MAMMI, S. CHIMICHI, G. BARBATO, D. O. CICERO, M. A. CREMONINI, M. FASANO, S. SPERA, L. ZETTA, M. Gussoni, F. Greco, A. Vezzoli, L. Zetta, L. Venturi, and M. A. Cremonini

Subjects
CELERY, DTI, OLD INSTRUMENTS, PHANTOM
Abstract

Because of its non invasive nature, NMR is a unique tool for studying the microstrusture of biological and material samples. This is usually done by monitoring the diffusion coefficients and relaxation times, whose behavior is related to the translational and rotational random molecular motion of the system components. These parameters report on motion on very different time scales, thus providing structural information at a microscopic scale well beyond the usual image resolution. However, while relaxation-weighted images are relatively straightforward to record and analyze, the study of diffusion through MRI calls for an higher level of complexity from both a theoretical and instrumental point of view and it is nowadays well established in the form of diffusion tensor imaging (DTI), a technique introduced by Basser et al. in 1994 [1]. Although software modules exist that alleviate the tedious task of setting all the parameters for the DTI sequence in newer instruments or medical scanners, our old spectrometer - a 4.7 Tesla Bruker AM WB equipped with a PFG drive unit for microimaging - did not offer the "turnkey” DT-MRI Bruker acquisition interface. We got round this by implementing a DTI acquisition module and analyzing the raw data with an open source DTI reconstruction software [2]. Our experience led us to elaborate some of the theoretical and methodological basic concepts of DTI, summarized in the following steps: i) Theoretical basis and assumptions of the equations that lead to the true and apparent calculation of the diffusion coefficient(s) [3]; ii) Acquisition scheme: a diffusion-weighted preparation module based on stimulated echo (STEAM) to provide long diffusion times with minimal T2 relaxation [4] prior to and independent of the imaging scheme; iii) DTI scheme: the amount of diffusion weighting and at least six not collinear PFG orientations (icosahedral geometry) to estimate the six independent elements of the symmetric diffusion tensor; iv) the corrections for cross-terms interactions [5]; v) reduction of eddy currents that generate image artifacts; vi) diffusion tensor reconstruction from DTI raw data, providing information on sample microstructure and architecture for each voxel: mean diffusivity; anisotropy indices and fiber orientation mapping; vii) Phantoms to test and validate the whole procedure: isotropic (water, BSA) and anisotropic (fibers and celery) at different anisotropy degree

Published
2007

10. On-Beam Digital Pulse Shape Acquisition From NE102A-${\rm BaF}_{2}$ Phoswich Detector

Author

S. Pirrone, L. Zetta, A. Pagano, F. Amorini, P. Russotto, G. Lanzano, E. La Guidara, S. Moser, F. Riccio, P. Guazzoni, and E. De Filippo

Subjects
Physics, Nuclear and High Energy Physics, Photomultiplier, business.industry, Detector, Analog-to-digital converter, Scintillator, Particle identification, law.invention, Optics, Nuclear Energy and Engineering, Sampling (signal processing), law, Electronic engineering, Phoswich detector, Electrical and Electronic Engineering, business, Digital signal processing
Abstract

The use of NE102A-BaF2 phoswich detector drastically improves the particle identification with respect to BaF2 crystals. To better exploit the possibility of light ion discrimination we have applied digital signal processing to the signals, on-beam collected with NE102A-BaF2 phoswich. We present the results obtained for the heavy ion charge identification (up to Z=50) and light particle mass identification, using digital pulse shape acquisition and a 12-bit, 2 GSample/s sampling analog to digital converter. The results concerning the response of BaF2-plastic phoswich to the reaction products issued at forward angles in the collision of 35.1 MeV/u 124Sn beam on 64Ni target have been obtained at the Superconducting Cyclotron of the Laboratori Nazionali del Sud in Catania.

Published
2009
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11. Time sequence and time scale of intermediate mass fragment emission

Author

E. La Guidara, A. Chbihi, G. Vannini, M. Bruno, R. Bougault, M. Trimarchi, G. Cardella, M. L. Sperduto, I. Berceanu, S. Pirrone, M.F. Rivet, K. Schmidt, J.D. Frankland, M. B. Chatterjee, J.P. Wieleczko, B. Borderie, G. Lanzano, W. Zipper, N. Le Neindre, P. Guazzoni, L. Swiderski, E. Galichet, F. Rizzo, A. Trifirò, E. Geraci, Aldo Bonasera, S. Cavallaro, E. Piasecki, D. Guinet, C. Maiolino, S. M. Li, R. Dayras, F. Giustolisi, S. Russo, J. Blicharska, J. Cibor, Mihai Petrovici, F. Amorini, M. Papa, S. Kowalski, Maria Colonna, W. Gawlikowicz, M. D'Agostino, F. Porto, M. Sassi, P. Russotto, J. Wilczynski, Lucrezia Auditore, R. Planeta, G. Politi, Angelo Pagano, A. Grzeszczuk, Mariano Vigilante, Amalia Pop, G. Lanzalone, M. Di Toro, Zhigang Xiao, V. Baran, A. Anzalone, H. Wu, K. Siwek-Wilczyńska, E. De Filippo, I. Skwira, M. Iacono-Manno, E. Rosato, L. Zetta, Z. Majka, J. Brzychczyk, 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), E., DE FILLIPPO, A., Pagano, J., Wilczynski, F., Amorini, A., Anzalone, N., Arena, 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., Lanzan, 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, G., Schmidt, K., SIWEK WILCZYNSKA, I., Skwira, M. L., Sperduto, L., Swiderski, A., Trifir, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, 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)-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, A. Pagano, J. Wilczy´nski, 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. 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. PBaneta, G. Politi, A. Pop, F. Porto, M. F. Rivet, E. Rosato, F. Rizzo, S. Russo, P. Russotto, M. Sassi, K. Schmidt, K. Siwek-Wilczy´nska, I. Skwira, M. L. Sperduto, A. ´ Swiderski, A. Trifiro', M. Trimarchi, G. Vannini, M. Vigilante, J. P. Wieleczko, H. Wu, Z. Xiao, L. Zetta, and W. Zipper.

Subjects
Physics, Nuclear and High Energy Physics, Reaction mechanism, 010308 nuclear & particles physics, Relative velocity, Time sequence, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, 25.70.Mn, 25.70.Pq, Fragmentation (mass spectrometry), 0103 physical sciences, Heavy ion, Ion emission, Atomic physics, 010306 general physics, Nucleon, Ternary operation
Abstract

Matière Nucléaire NIM; Semiperipheral collisions in the $^{124}$Sn+${64}Ni reaction at 35 MeV/nucleon were studied using the forward part of the Charged Heavy Ion Mass and Energy Resolving Array. Nearly completely determined ternary events involving projectilelike fragments (PLF), targetlike fragments (TLF), and intermediate mass fragments (IMF) were selected. A new method of studying the reaction mechanism, focusing on the analysis of the correlations between relative velocities in the IMF+PLF and IMF+TLF subsystems, is proposed. The relative velocity correlations provide information on the time sequence and time scale of the neck fragmentation processes leading to production of IMFs. It is shown that the majority of light IMFs are produced within 40–80 fm/c after the system starts to reseparate. Heavy IMFs are formed at times of about 120 fm/c or later and can be viewed as resulting from two-step (sequential) neck rupture processes.

Published
2005
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12. Isospin against size effects in projectile dynamical fission for 112,124Sn+58,64Ni and 124Xe+64Zn reactions at 35 A.MeV

Author

A. Grzeszczuk, Lucrezia Auditore, W. Zipper, L. Francalanza, N. Giudice, M. D'Andrea, J. Wilczyński, E. De Filippo, F. Fichera, G. Politi, M. Bruno, L. Quattrocchi, Chiara Guazzoni, I. Berceanu, G. Sacca, Maria Colonna, J.P. Wieleczko, E. La Guidara, S. Kowalski, Michele Papa, F. Porto, L. Zetta, P. Russotto, Triestino Minniti, T. Cap, Giuseppe Verde, M. Di Toro, A. Chbihi, S. Cavallaro, I. Skwira-Chalot, M.F Rivet, A. Anzalone, S. Pirrone, Ivano Lombardo, Antonio Trifiro, G. Marquínez-Durán, L. Acosta, V. Baran, E. V. Pagano, Katarzyna Schmidt, E. Geraci, P. Zambon, M. Trimarchi, F. Amorini, G. Lanzano, F. Riccio, K. Siwek-Wilczyńska, G. Cardella, Mariano Vigilante, M. D'Agostino, M. B. Chatterjee, G. Lanzalone, A. Grimaldi, E. Piasecki, F. Rizzo, R. Giani, G. Passaro, Elio Rosato, R. Płaneta, A. Castoldi, C. Maiolino, A. Pagano, P. Guazzoni, B. Borderie, C. Boiano, B. Gnoffo, 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), 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), Giorgio Giardina, Avazbek K. Nasirov, Giuseppe Mandaglio, G.Giardina, A.K.Nasirov, G.Mandaglio, P., Russotto, E., De Filippo, A., Pagano, E., Piasecki, L., Acosta, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, C., Boiano, B., Borderie, M., Bruno, T., Cap, G., Cardella, A., Castoldi, S., Cavallaro, M. B., Chatterjee, A., Chbihi, M., Colonna, M., D’Agostino, M., D’Andrea, M., Di Toro, F., Fichera, L., Francalanza, E., Geraci, R., Gianì, B., Gnoffo, A., Grimaldi, A., Grzeszczuk, C., Guazzoni, P., Guazzoni, N., Giudice1, S., Kowalski, E., La Guidara, G., Lanzalone4, G., Lanzanò, Lombardo, Ivano, C., Maiolino, G., Marquínez Durán, T., Minniti, M., Papa, E. V., Pagano, G., Passaro, S., Pirrone, R., Planeta, G., Politi, F., Porto, L., Quattrocchi, M. F., Rivet, Rosato, Elio, F., Riccio, F., Rizzo, G., Saccà, K., Schmidt, K., Siwek Wilczyska, I., Skwira Chalot, A., Trifirò, M., Trimarchi, G., Verde, Vigilante, Mariano, J. P., Wieleczko, J., Wilczyński, P., Zambon, L., Zetta, W., Zipper, 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
History, Fission, Nuclear Theory, Nuclear physics, Physics and Astronomy (all), sezele, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Thermal and statistical models, Education, Physics and Astronomy (all), Spin, isospin effects, statistical and dynamical fission, Neutron, Nucleon distributions and halo features, Spin (physics), Nuclear reactioon, Nuclear Experiment, ComputingMilieux_MISCELLANEOUS, Spin, parity, and isobaric spin, General properties of fission, Physics, 21.10.Hw, 27.60.+j, 24.75.+i, 25.85.-w, 21.10.Gv, 24.10.Pa, sezele, Projectile, Nuclear fission, Parity (physics), and isobaric spin, Computer Science Applications, Entrance channel, parity, Isospin, Fission reactions, Atomic physics, Beam energy
Abstract

In past experiments, mass asymmetric projectile-target combinations 124Sn+64Ni and 112Sn+58Ni were investigated at ELab(112,124Sn)=35 A.MeV beam energy by using the 4π multi-detector CHIMERA. From a quantitative comparison of cross sections associated to Statistical and Dynamical Fission of the Projectile-Like Fragments, it resulted that Dynamical Fission process is about two times more probable in the neutron rich 124Sn+64Ni system than in the 112Sn +58 Ni neutron poor one. In contrast, no sizable difference was found for Statistical Fission mechanism. The observed difference in the strength of the Dynamical effects could arise from the difference in entrance channel Isospin (N/Z) content. In order to disentangle Isospin effects from effects due to the different masses of the two systems, a new experiment 124Xe+64Zn at 35 A.MeV beam energy has been recently carried out.

Published
2013
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13. Detection and clustering of light charged particles via system-identification techniques

Author

Sergio M. Savaresi, L. Zetta, P. Guazzoni, and Fabio Previdi

Subjects
Physics, Detector, Linear system, System identification, Charged particle, Particle identification, Control and Systems Engineering, Signal Processing, Electrical and Electronic Engineering, Cluster analysis, Algorithm, Simulation, Impulse response, Parametric statistics
Abstract

The problem considered in this work is the classification of the particles produced by the collision of a heavy ion beam on a target. Each particle is captured by a detector and results in a signal (which is the impulse response of a dynamic linear system), which is measured by a digital acquisition system. The assumption made herein is that the shape of the impulse-response contains complete information on the particle, and the classification can be done by pulse-shape, analysis. In this work, a complete procedure for the particle identification is proposed. The main idea is to use the cascade of a state-space identification algorithm and a parametric non-linear map using the model parameters as input regressors. The algorithm has been tested on a large set of impulse-responses and provides a fully automatic accurate classification of the isotopes. This work focuses on isotopic identification of the most energetic light charged particles (LCP). All the experiments are made with the large detector array CHIMERA (Charge Heavy Ions Mass and Energy Resolving Array). Copyright © 2006 John Wiley & Sons, Ltd.

Published
2007
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14. Production cross sections for intermediate mass fragments from dynamical and statistical decay of projectile-like fragments inSn124+Ni64andSn112+Ni58collisions at35AMeV

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Reaction mechanism, Astrophysics::High Energy Astrophysical Phenomena, Production (computer science), Astrophysics::Cosmology and Extragalactic Astrophysics, Sensitivity (control systems), Atomic physics, Nuclear Experiment, 7. Clean energy, Astrophysics::Galaxy Astrophysics, Energy (signal processing), Charged particle
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 $^{124}\mathrm{Sn}+^{64}\mathrm{Ni}$ system and a neutron-poor $^{112}\mathrm{Sn}+^{58}\mathrm{Ni}$ 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 ($Z\ensuremath{\ge}6$). 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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15. The ASY-EOS experiment at GSI: Constraining the symmetry energy at supra-saturation densities

Author

P. Russotto, M. Chartier, M.D. Cozma, E. De Filippo, A. Le Fèvre, S. Gannon, I. Gašparić, M. Kiš, S. Kupny, Y. Leifels, R.C. Lemmon, Q. Li, J. Łukasik, P. Marini, P. Pawłowski, W. Trautmann, L. Acosta, M. Adamczyk, A. Al-Ajlan, M. Al-Garawi, S. Al-Homaidhi, F. Amorini, L. Auditore, T. Aumann, Y. Ayyad, V. Baran, Z. Basrak, R. Bassini, J. Benlliure, C. Boiano, M. Boisjoli, K. Boretzky, J. Brzychczyk, A. Budzanowski, G. Cardella, P. Cammarata, Z. Chajecki, A. Chbihi, M. Colonna, B. Czech, M. Di Toro, M. Famiano, V. Greco, L. Grassi, C. Guazzoni, P. Guazzoni, M. Heil, L. Heilborn, R. Introzzi, T. Isobe, K. Kezzar, A. Krasznahorkay, N. Kurz, E. La Guidara, G. Lanzalone, P. Lasko, I. Lombardo, W.G. Lynch, Z. Matthews, L. May, T. Minniti, M. Mostazo, A. Pagano, M. Papa, S. Pirrone, R. Pleskac, G. Politi, F. Porto, R. Reifarth, W. Reisdorf, F. Riccio, F. Rizzo, E. Rosato, D. Rossi, S. Santoro, H. Simon, I. Skwirczynska, Z. Sosin, L. Stuhl, A. Trifirò, M. Trimarchi, M.B. Tsang, G. Verde, M. Veselsky, M. Vigilante, A. Wieloch, P. Wigg, H.H. Wolter, P. Wu, S. Yennello, P. Zambon, L. Zetta, M. Zoric, Borderie, B., Russotto, P., Chartier, M., Cozma, M. D., De Filippo, E., Le Fever, A., Gannon, S., Gǎsparíc, I., Kǐs, M., Kupny, S., Leifels, Y., Lemmon, R. C., Li, Q., Lukasik, J., Marini, P., Pawlowski, P., Trautmann, W., Acosta, L., Adamczyk, M., Al-Ajlan, A., Al-Garawi, M., Al-Homaidhi, S., Amorini, F., Auditore, L., Aumann, T., Ayyad, Y., Baran, V., Basrak, Z., Bassini, R., Benlliure, J., Boiano, C., Boisjoli, M., Boretzky, K., Brzychczyk, J., Budzanowski, A., Cardella, G., Cammarata, P., Chajecki, Z., Chbihi, A., Colonna, M., Czech, B., Di Toro, M., Famiano, M., Greco, V., Grassi, L., Guazzoni, C., Guazzoni, P., Heil, M., Heilborn, L., Introzzi, R., Isobe, T., Kezzar, K., Krasznahorkay, A., Kurz, N., La Guidara, E., Lanzalone, G., Lasko, P., Lombardo, I., Lynch, W. G., Matthews, Z., May, L., Minniti, T., Mostazo, M., Pagano, A., Papa, M., Pirrone, S., Pleskac, R., Politi, G., Porto, F., Reifarth, R., Reisdorf, W., Riccio, F., Rizzo, F., Rosato, E., Rossi, D., Santoro, S., Simon, H., Skwirczynska, I., Sosin, Z., Stuhl, L., Trifiro, A., Trimarchi, M., Tsang, M. B., Verde, G., Veselsky, M., Vigilante, M., Wieloch, A., Wigg, P., Wolter, H. H., Wu, P., Yennello, S., Zambon, P., Zetta, L., Zoric, M., Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-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), 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
Physics and Astronomy (all), sezele, Physics, QC1-999, Nuclear Theory, ddc:530, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; The elliptic-flow ratio of neutrons with respect to protons or lightcomplex particles in reactions of heavy ions at pre-relativistic energieshas been proposed as an observable sensitive to the strength of thesymmetry term of the nuclear equation of state at supra-saturationdensities. In the ASY-EOS experiment at the GSI laboratory, flows ofneutrons and light charged particles were measured for 197Au+197Au,96Zr+96Zr and 96Ru+96Ru collisions at 400 MeV/nucleon with theLarge Area Neutron Detector LAND as part of a setup with severaladditional detection systems used for the event characterization. Flowresults obtained for the Au+Au system, in comparison with predictionsof the UrQMD transport model, confirm the moderately soft to lineardensity dependence of the symmetry energy deduced from the earlierFOPI-LAND data.

Published
2015
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16. Proposed object-oriented architecture of a flexible small-scale system for digital pulse shape acquisition

Author

L. Zetta, F. Riccio, S. Russo, P. Guazzoni, and M. Sassi

Subjects
Nuclear and High Energy Physics, Signal processing, business.industry, Computer science, Interface (computing), Data acquisition, Nuclear Energy and Engineering, Sampling (signal processing), Gigabit, Multithreading, Electronic engineering, Electrical and Electronic Engineering, business, Software architecture, Computer hardware, Digital signal processing
Abstract

In order to fully exploit all the possibilities of digital pulse shape acquisition with AZ/4/spl pi/-multidetectors for charged products, we developed a case study of data acquisition system. The proposed object-oriented scalable architecture is distributed over a network of processing and storage units and based on a set of objects, each one devoted to a specific job. It performs on-line real-time acquisition and product identification, using sampling VME-ADCs and proper algorithms for digital signal processing. A PCI-VME bridge is used to interface the ADCs to a gigabit network of personal computers. Preliminary benchmarking tests have been carried out to determine performances and actual possibilities of the system.

Published
2006
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17. DYNAMICAL EVOLUTION OF THE 197<font>Au</font> + 197<font>Au</font> SYSTEM AT 15 MeV/NUCLEON

Author

R. Płaneta, G. Cardella, K. Siwek-Wilczyńska, A. Anzalone, J. Wilczyński, I. Skwira-Chalot, S. Pirrone, W. Zipper, Angelo Pagano, E. Piasecki, A. Grzeszczuk, P. Guazzoni, Maria Colonna, A. Sochocka, S. Cavallaro, G. Lanzano, F. Amorini, E. De Filippo, C. Maiolino, M. Di Toro, M. Papa, F. Rizzo, V. Baran, Ł. Świderski, S. Kowalski, M. B. Chatterjee, E. La Guidara, Marina Trimarchi, F. Porto, G. Lanzalone, N. G. Nicolis, L. Zetta, Z. Majka, Lucrezia Auditore, J. Brzychczyk, G. Politi, Antonio Trifiro, K. Schmidt, and P. Russotto

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, General Physics and Astronomy, Dissipation, Nuclear Experiment, Ternary operation, Nucleon, Excitation
Abstract

Collisions of a very heavy 197 Au + 197 Au system have been studied at an energy of 15 MeV/nucleon with the aim to investigate a possible change of the energy dissipation mechanism from one-body dissipation (presumably dominating at low excitation energies) to two-body dissipation. The experiment was carried out in 4π geometry using the CHIMERA multidetector array. A class of ternary events satisfying nearly complete balance of mass numbers was selected. Preliminary results suggest that the selected ternary events represent mostly prompt ternary partitions of the colliding system, in which the lightest fragment is quite massive. In the light of theoretical predictions of Cârjan, Sierk and Nix this result may imply that the observed ternary reactions are driven by the two-body dissipation mechanism already at 15 MeV/nucleon.

Published
2006
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18. ASY-EOS experiment at GSI

Author

S. Pirrone, Riccardo Introzzi, D. Loria, J. Brzychczyk, F. Amorini, Chiara Guazzoni, Marielle Chartier, Triestino Minniti, M. Trimarchi, A. Budzanowski, H. H. Wolter, L. W. May, M. Di Toro, M. Al-Garawi, M. Zoric, B. Tsang, B. Czech, L. Grassi, Z. Chajecki, E. La Guidara, C. Boisjoli, P. Z. Wu, Matthias Heil, Rene Reifarth, G. Politi, Yassid Ayyad, Martin Veselsky, K. Boretzky, Paola Marini, G. Cardella, F. Porto, P. Guazzoni, F. Riccio, Michael Famiano, J. Lukasik, Maria Colonna, Vincenzo Greco, Yvonne Leifels, A. Gašsparić, A. Trifirò, E. Geraci, I. Skwirczyńska, W. Reisdorf, L. Acosta, P. Zambon, A. Le Fèvre, Lauren Heilborn, Michele Papa, M. Adamczyk, Lucrezia Auditore, P. Cammarata, Thomas Aumann, Mihai Petrovici, Z. Basrak, A. Chbihi, Ivano Lombardo, Piotr Pawłowski, S. Cavallaro, Z. Matthews, M. Mostazo, P. Russotto, J. Wilczyński, S. Santoro, P. Lasko, Tadaaki Isobe, F. Rizzo, V. Baran, D. M. Rossi, Zbigniew Sosin, Qingfeng Li, Mariano Vigilante, W. Trautmann, G. Lanzalone, W. G. Lynch, M. Kiš, J. Benlliure, Elio Rosato, S. Al-Homaidhi, C. Boiano, A. Wieloch, Angelo Pagano, E. De Filippo, Abdulrahman Alajlan, Roy Crawford Lemmon, S. Kupny, Sherry Yennello, N. Kurz, L. Zetta, Herbert A. Simon, P. Wigg, K. Kezzar, Giuseppe Verde, 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), J.D Frankland, A. Pagano, S. Pirrone, M.-F Rivet, F. Rizzo, J.D.Frankland, A.Pagano, S.Pirrone, m.F.Rivet, F.Rizzo, P., Russotto, L., Acosta, M., Adamczyk, A., Al Ajlan, M., Al Garawi, S., Al Homaidhi, F., Amorini, L., Auditore, T., Aumann, Y., Ayyad, V., Baran, Z., Basrak, J., Benlliure, C., Boiano, C., Boisjoli, K., Boretzky, J., Brzychczyk, A., Budzanowski, G., Cardella, P., Cammarata, S., Cavallaro, Z., Chajecki, M., Chartier, A., Chbihi, M., Colonna, B., Czech, E., De Filippo, M., Di Toro, M., Famiano, A., Le Fevre, A., Ga??spari??, E., Geraci, L., Grassi, V., Greco, C., Guazzoni, P., Guazzoni, M., Heil, L., Heilborn, R., Introzzi, T., Isobe, K., Kezzar, M., Ki??, S., Kupny, N., Kurz, E., La Guidara, G., Lanzalone, P., Lasko, Y., Leifel, R., Lemmon, Q., Li, Lombardo, Ivano, D., Loria, J., Lukasik, W. G., Lynch, P., Marini, Z., Matthew, L., May, T., Minniti, M., Mostazo, A., Pagano, M., Papa, P., Pawlowski, M., Petrovici, S., Pirrone, G., Politi, F., Porto, R., Reifarth, W., Reisdorf, F., Riccio, F., Rizzo, Rosato, Elio, D., Rossi, S., Santoro, H., Simon, I., Skwirczynska, Z., Sosin, W., Trautmann, A., Trifirò, M., Trimarchi, B., Tsang, M., Veselsky, G., Verde, Vigilante, Mariano, A., Wieloch, P., Wigg, J., Wilczynski, H. H., Wolter, P., Wu, S., Yennello, P., Zambon, L., Zetta, M., Zoric, Russotto, P., Acosta, L., Adamczyk, M., Al-Ajlan, A., Al-Garawi, M., Al-Homaidhi, S., Amorini, F., Auditore, L., Aumann, T., Ayyad, Y., Baran, V., Basrak, Z., Benlliure, J., Boiano, C., Boisjoli, M., Boretzky, K., Brzychczyk, J., Budzanowski, A., Cardella, G., Cammarata, P., Cavallaro, S., Chajecki, Z., Chartier, M., Chbihi, A., Colonna, M., Czech, B., De Filippo, E., Di Toro, M., Famiano, M., Le Fevre, A., Gašparić, I., Geraci, E., Grassi, L., Greco, V., Guazzoni, C., Guazzoni, P., Heil, M., Heilborn, L., Introzzi, R., Isobe, T., Kezzar, K., Kiš, M., Kupny, S., Kurz, N., La Guidara, E., Lanzalone, G., Lasko, P., Leifels, Y., Lemmon, R., Li, Q., Lombardo, I., Loria, D., Lukasik, J., Lynch, W., Marini, P., Matthews, Z., May, L., Minniti, T., Mostazo, M., Pagano, A., Papa, M., Pawlowski, P., Petrovici, M., Pirrone, S., Politi, G., Porto, F., Reifarth, R., Reisdorf, W., Riccio, F., Rizzo, F., Rosato, E., Rossi, D., Santoro, S., Simon, H., Skwirczynska, I., Sosin, Z., Trautmann, W., Trifirò, A., Trimarchi, M., Tsang, B., Veselsky, M., Verde, G., Vigilante, M., Wieloch, A., Wigg, P., Wilczynski, J., Wolter, H., Wu, P., Yennello, S., Zambon, P., Zetta, L., and Zoric, M.

Subjects
Physics, sezele, QC1-999, Nuclear Theory, symmetry energy, Observable, Nuclear equation of state, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nuclear equation of state, Symmetry (physics), Term (time), Nuclear physics, Physics and Astronomy (all), nucleus-nucleus collisions, Neutron, Nucleon, Nuclear Experiment
Abstract

The elliptic-flow ratio of neutrons with respect to protons in reactions of neutron rich Heavy-Ion at intermediate energies has been recently proposed as an observable sensitive to the strength of the symmetry term in the nuclear equation of state (EOS) at supra-saturation densities. The recent results obtained from the existing FOPI/LAND data for 197Au+197Au collisions at 400 MeV/nucleon in comparison with the UrQMD model allowed a first estimate of the symmetry term of the EOS but suffer from a considerable statistical uncertainty. In order to obtain an improved data set for Au+Au collisions and to extend the study to other systems, a new experiment was carried out at the GSI laboratory by the ASY-EOS collaboration in May 2011. © Owned by the authors, 2012.

Published
2012
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19. CHIMERA data acquisition via digital sampling technique

Author

M. Papa, F. Porto, E. De Filippo, S. Pirrone, L. Zetta, A. Pagano, P. Guazzoni, G. Cardella, R. Bassini, M. Sassi, G. Lanzalone, F. Giustolisi, G. Lanzano, E. Laguidara, S. Russo, E. Geraci, A. Anzalone, C. Boiano, G.R. Sechi, Monica Alderighi, S. Cavallaro, and G. Politi

Subjects
Physics, Nuclear and High Energy Physics, Analog front-end, Signal processing, Data acquisition, Nuclear Energy and Engineering, Preamplifier, Amplifier, Nuclear electronics, Electronic engineering, Sampling (statistics), Electrical and Electronic Engineering, Pulse shaping
Abstract

A 100 Msamples/s 14-bit sampling analog-to-digital converter has been used to perform digital pulse-shape acquisition of signals collected from CHIMERA telescopes. Two different kinds of tests have been carried out to check the performances. The signals from a typical CHIMERA detection cell have been collected using both a standard CHIMERA electronic chain up to the amplifier, and a very simple analog front end, basically reduced to the preamplifier. The obtained on-beam and on-line results are presented.

Published
2004
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20. Strong enhancement of dynamical emission of heavy fragments in the neutron rich 124Sn+64Ni reaction at 35 AMeV

Author

P. Russotto, E. De Filippo, A. Pagano, E. Piasecki, 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. Dayras, 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. Rivet1, F. Rizzo, K. Schmidt, K. Siwek Wilczyńska, I. Skwira Chalot, A. Sochocka, L. Swiderski, A. Trifirò, M. Trimarchi, J. P. Wieleczko, J. Wilczyński, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, P., Russotto, E., De Filippo, A., Pagano, E., Piasecki, 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., Lanzanò, N., Le Neindre, C., Maiolino, Z., Majka, M., Papa, M., Petrovici, S., Pirrone, R., Płaneta, G., Politi, A., Pop, F., Porto, M. F., Rivet1, Rosato, Elio, F., Rizzo, K., Schmidt, K., Siwek Wilczyńska, I., Skwira Chalot, A., Sochocka, L., Swiderski, A., Trifirò, M., Trimarchi, Vigilante, Mariano, J. P., Wieleczko, J., Wilczyński, L., Zetta, and W., Zipper

Subjects
isospin, fisica nucleare, reazioni nucleari
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

21. Study of exotic beams induced reactions in the region of 11Be with CHIMERA array

Author

G. Lanzalone, I. Lombardo, Ji-Youn Han, M. Papa, L. Grassi, P. Russotto, F. Porto, S. Cavallaro, E. La Guidara, L. Zetta, Giuseppe Verde, S. Pirrone, Lucrezia Auditore, S. Lo Nigro, A. Grzeszczuk, Elio Rosato, E. De Filippo, A. Anzalone, G. Politi, A. Trifirò, F. Rizzo, D. Loria, E. Geraci, G. Cardella, M. B. Chatterjee, Mariano Vigilante, Marina Trimarchi, F. Amorini, C. Maiolino, A. Pagano, P. Guazzoni, F., Amorini, A., Anzalone, L., Auditore, G., Cardella, S., Cavallaro, M. B., Chatterjee, E., De Filippo, E., Geraci, L., Grassi, A., Grzeszczuk, P., Guazzoni, J., Han, E., La Guidara, G., Lanzalone, I., Lombardo, S., Lo Nigro, D., Loria, C., Maiolino, A., Pagano, M., Papa, S., Pirrone, G., Politi, F., Porto, F., Rizzo, Rosato, Elio, P., Russotto, A., Trifirò, M., Trimarchi, G., Verde, Vigilante, Mariano, and L., Zetta

Subjects
Physics, Nuclear and High Energy Physics, Chimera (genetics), Intermediate energy, fasci esotici, fisica nucleare, fasci radioattivi, General Physics and Astronomy, Halo, Atomic physics
Abstract

Intermediate energy beams of light exotic nuclei have been produced at LNS by the FRIBs facility. Thanks to these beams, a complex study of the structure of halo nuclei in the 11 Be region has been started exploiting the performances of the CHIMERA array.

Published
2010

22. Reaction dynamics and 'hierarchy' effects from light particle correlations

Author

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. Dayras, M. Di Toro, U. Emanuele, J. D. 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. Lanzanò, N. Le Neindre, I. Lombardo, C. Maiolino, Z. Majka, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, R. Planeta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, P. Russotto, K. Schmidt, K. Siwek Wilczynska, I. Skwira, A. Trifirò, M. Trimarchi, G. Verde, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, J.D.Frankland, A.Pagano, S.Pirrone, M.F.Rivet, F.Rizzo, 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. D., 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., Lanzanò, N., Le Neindre, I., Lombardo, C., Maiolino, Z., Majka, A., Pagano, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, R., Planeta, G., Politi, A., Pop, F., Porto, M. F., Rivet, Rosato, Elio, F., Rizzo, P., Russotto, K., Schmidt, K., Siwek Wilczynska, I., Skwira, A., Trifirò, M., Trimarchi, G., Verde, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Published
2010

23. Correlation between light and heavy particles with intermediate energy radioactive beams

Author

F. Amorini, C. Agodi, A. Anzalone, G. Cardella, S. Cavallaro, M. B. Chatterjee, E. De Filippo, E. Geraci, L. Grassi, A. Grzeszczuk, P. Guazzoni, J. Han, E. La Guidara, G. Lanzalone, I. Lombardo, S. Lo Nigro, A. Loria, C. Maiolino, A. Pagano, M. Papa, S. Pirrone, G. Politi, F. Porto, F. Rizzo, P. Russotto, A. Trifirò, M. Trimarchi, G. Verde, L. Zetta, ROSATO, ELIO, VIGILANTE, MARIANO, J.D.Frankland, A.Pagano, S.Pirrone, M.F.Rivet, F.Rizzo, F., Amorini, C., Agodi, A., Anzalone, G., Cardella, S., Cavallaro, M. B., Chatterjee, E., De Filippo, E., Geraci, L., Grassi, A., Grzeszczuk, P., Guazzoni, J., Han, E., La Guidara, G., Lanzalone, I., Lombardo, S., Lo Nigro, A., Loria, C., Maiolino, A., Pagano, M., Papa, S., Pirrone, G., Politi, F., Porto, F., Rizzo, Rosato, Elio, P., Russotto, A., Trifirò, M., Trimarchi, G., Verde, Vigilante, Mariano, and L., Zetta

Published
2010

24. MUSE: an integrated trigger and readout control system for CHIMERA

Author

Su Hong, M. Iacono-Manno, P. Litrico, L. Sperduto, G. Lanzalone, F. Porto, M. Alderighi, G. Cardella, S. Pirrone, G. Politi, L. Zetta, S. Lo Nigro, C. Cali, S. Russo, F. Giustolisi, Gong Peirong, S. Cavallaro, E. De Filippo, Michele Papa, G. Lanzano, A. Anzalone, E. Geraci, G.R. Sechi, A. Pagano, P. Guazzoni, and Silvia Marino

Subjects
Physics, Nuclear and High Energy Physics, Signal generator, Detector, computer.file_format, Converters, Data conversion, Data acquisition, Nuclear Energy and Engineering, Application-specific integrated circuit, Logic gate, Control system, Electronic engineering, Electrical and Electronic Engineering, computer
Abstract

The CHIMERA 4/spl pi/ detector trigger system is described. The trigger decisions are based on a combination of geometrical multiplicity of detected particles and other logic signals. The trigger can manage the buffer memory of the used analog to digital converters. This allows performance of parallel data conversion and readout and substantial improvement of the acquisition system dead-time performances. The trigger module generates all the necessary gate signals for the converters and the control signals necessary to synchronize the readout. It also allows the remote control of the whole system.

Published
2002
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25. CHIMERA data acquisition and computational system using DSP-based VME modules

Author

M. Papa, F. Porto, O. Anzalone, M. Iacono-Manno, G. Lanzano, S. Russo, S. Pirrone, L. Zetta, E. Geraci, G. Lanzalone, M. Alderighi, F. Giustolisi, G. Manfredi, E. De Filippo, S. Cavallaro, L. Sperduto, A. Pagano, P. Guazzoni, G.R. Sechi, P. Opichal, M. Bartolucci, G. Cardella, and G. Politi

Subjects
Nuclear and High Energy Physics, Digital signal processor, Signal processing, business.industry, Computer science, System testing, Data acquisition, Nuclear Energy and Engineering, Eurocard, Central processing unit, Electrical and Electronic Engineering, business, Computer hardware, Digital signal processing, VMEbus
Abstract

We have built and tested a computational unit for on-line processing of special algorithms to be embedded in the central processing unit VERSAmodule Eurocard (CPU VME)-crate of the CHIMERA data acquisition system. The computational unit consists of a number of VME digital signal processor (DSP)-based commercial boards delivering 720 MFlops/board.

Published
2002
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26. Isospin Effects in Heavy-Ion Collisions: Some Results From CHIMERA Experiments At LNS And Perspectives With Radioactive Beams

Author

G. Cardella, F. Amorini, A. Anzalone, N. Arena, L. Auditore, R. Barnà, A. Benisz, I. Berceanu, M. B. Chatterjee, S. Cavallaro, E. De Filippo, U. Emanuele, W. Gawlikowicz, E. Geraci, L. Grassi, G. Giuliani, A. Grzeszczuk, P. Guazzoni, S. Kowalski, E. La Guidara, G. Lanzalone, I. Lombardo, S. Lo Nigro, D. Loria, C. Maiolino, N. G. Nicolis, A. Pagano, M. Papa, I. Pawelczak, M. Petrovici, S. Pirrone, R. Planeta, G. Politi, A. Pop, F. Porto, F. Previdi, M. Quinlan, F. Rizzo, E. Rosato, P. Russotto, W. U. Schrőder, I. Skwira-Chalot, K. Siwek-Wilczynska, K. Schmidt, A. Sochocka, L. Swiderski, A. Trifirò, M. Trimarchi, J. Tõke, G. Verde, M. Vigilante, J. Wilczynski, L. Zetta, W. Zipper, Sun-Chan Jeong, Yutaka Utsuno, Tohru Motobayashi, Angela Bracco, S.C.Jeong,Y.Utsuno, T.Motobayashi, A.Bracco, G., Cardella, F., Amorini, A., Anzalone, N., Arena, L., Auditore, R., Barnà, A., Benisz, I., Berceanu, M. B., Chatterjee, S., Cavallaro, E., De Filippo, U., Emanuele, W., Gawlikowicz, E., Geraci, L., Grassi, G., Giuliani, A., Grzeszczuk, P., Guazzoni, S., Kowalski, E., La Guidara, G., Lanzalone, I., Lombardo, S., Lo Nigro, D., Loria, C., Maiolino, N. G., Nicoli, A., Pagano, M., Papa, I., Pawelczak, M., Petrovici, S., Pirrone, R., Planeta, G., Politi, A., Pop, F., Porto, F., Previdi, M., Quinlan, F., Rizzo, Rosato, Elio, P., Russotto, W. U., Schr?der, I., Skwira Chalot, K., Siwek Wilczynska, K., Schmidt, A., Sochocka, L., Swiderski, A., Trifirò, M., Trimarchi, J., Toke, G., Verde, Vigilante, Mariano, J., Wilczynski, L., Zetta, and W., Zipper

Subjects
Physics, Particle physics, Field (physics), Nuclear Theory, Physics::Medical Physics, Detector, Nuclear structure, Scintillator, Charged particle, Nuclear physics, Settore ING-INF/04 - Automatica, Isospin, Heavy ion, Nuclear Experiment, Spin (physics)
Abstract

CHIMERA is a 4π multidetector for charged particles available at Laboratori Nazionali del Sud (INFN‐LNS). A new method to measure the time scale of the emission of nuclear fragments is described, together with some applications in the field of the isospin dynamics of heavy‐ion collisions. Competition between fusion‐like and binary reactions near the energy threshold for nuclear multifragmentation is discussed. Opportunities are pointed out to use the detector at low and intermediate energies using the kinematical‐coincidence method.

Published
2009
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27. Isospin effects in projectile-like dynamical fission for 112-124Sn + 58-64Ni reactions at 35 a MeV

Author

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. Dayras, 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. Planeta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, K. Schmidt, K. Siwek Wilczynska, I. Skwira Chalot, A. Sochocka, L. Swiderski, A. Trifirò, M. Trimarchi, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, Audrey Chatillon, Herbert Faust, Gabriele Fioni, Dominique Goutte, Héloise Goutte, 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., Planeta, G., Politi, A., Pop, F., Porto, M. F., Rivet, Rosato, Elio, F., Rizzo, K., Schmidt, K., Siwek Wilczynska, I., Skwira Chalot, A., Sochocka, L., Swiderski, A., Trifirò, M., Trimarchi, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Subjects
nuclear fission, nucleus-nucleus collision, multidetectors, Isospin, nuclear physic
Published
2009

28. Two-neutron transfer in Sn isotopes beyond theN=82shell closure

Author

A. Gargano, Benjamin F Bayman, A. Covello, L. Zetta, and P. Guazzoni

Subjects
Physics, Nuclear and High Energy Physics, education.field_of_study, Nuclear Theory, Isotope, Yrast, Population, Shell (structure), FOS: Physical sciences, Nuclear Theory (nucl-th), Transfer (group theory), Closure (mathematics), Neutron, Born approximation, Atomic physics, Nuclear Experiment, education
Abstract

We have performed microscopic distorted-wave Born approximation (DWBA) calculations of differential cross sections for the two reactions 136Sn(p,t)134Sn and 134Sn(t,p)136Sn, which are within reach of near-future experiments with radioactive ion beams. We have described the initial and final nuclear states in terms of the shell model, employing a realistic low-momentum two-body effective interaction derived from the CD-Bonn nucleon-nucleon potential that has already proved quite successful in describing the available low-energy energy spectrum of 134Sn. We discuss the main features of the predicted cross sections for the population of the low-lying yrast states in the two nuclei considered., Comment: 7 pages, 6 figures, 2 tables, to be published in Physical Review C

Published
2014
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30. A spatial density analysis technique for the automatic classification of 4/spl pi/ detector data

Author

G. Lanzalone, S. Sambataro, E. De Filippo, F. Giustolisi, G. Cardella, A. Anzalone, R. Sechi, S. Russo, G. Manfredi, L. Sperduto, E. Geraci, F. Porto, S. Pirrone, G. Lanzano, L. Zetta, M. Bartolucci, G.R. Sechi, A. Pagano, P. Guazzoni, M. Alderighi, G. Politi, S. Cavallaro, A. Sala, Michele Papa, and S. LoNigro

Subjects
Physics, Nuclear and High Energy Physics, Data processing, Physics::Instrumentation and Detectors, Scattering, Detector, Scintillator, Spectral line, Reduction (complexity), Identification (information), Nuclear Energy and Engineering, Electronic engineering, Electrical and Electronic Engineering, Frequency distribution, Algorithm
Abstract

In nuclear physics at intermediate energies, the use of multidetector arrays consisting of thousands of detectors is customary. This paper presents a novel approach to the automatic classification of data collected by the 4/spl pi/ detector CHIMERA, constituted by 1192 telescopes of a thin silicon transparent detector coupled to a thick CsI(Tl) scintillator. The method is based on spatial density data processing and produces frequency distributions of the most significant physical parameters. These one-dimensional spectra can be more easily analyzed than the standard two-dimensional scatter plots. With respect to manual or semiautomatic procedures, presently used for data analysis, our method offers the advantages of drastic time reduction and unbiased criteria for cluster identification. The proposed method can be successfully used in both off-line data analysis and multidetector stability control.

Published
2001
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31. Centrality dependence of isospin effect signatures in 124Sn+64Ni and 112Sn+58Ni reactions

Author

R. Planeta, F. Amorini, A. Anzalone, L. Auditore, V. Baran, A. Benisz, I. Berceanu, B. Borderie, J. Borgenstajn, R. Bougault, M. Bruno, J. Brzychczyk, G. Cardella, S. Cavallaro, M. B. Chatterjee, A. Chbihi, M. Colonna, M. D'Agostino, R. Dayras, E. De Filippo, M. Di Toro, J. D. 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. Lanzanò, G. Lanzalone, N. Le Neindre, J. Lukasik, C. Maiolino, Z. Majka, N. G. Nikolis, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, P. Russotto, K. Schmidt, K. Siwek Wilczynska, I. Skwira Chalot, A. Sochocka, L. Swiderski, A. Trifirò, M. Trimarchi, G. Vannini, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, R., Planeta, F., Amorini, A., Anzalone, L., Auditore, V., Baran, A., Benisz, I., Berceanu, B., Borderie, J., Borgenstajn, 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. D., 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., Lanzanò, G., Lanzalone, N., Le Neindre, J., Lukasik, C., Maiolino, Z., Majka, N. G., Nikoli, A., Pagano, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, G., Politi, A., Pop, F., Porto, M. F., Rivet, F., Rizzo, Rosato, Elio, P., Russotto, K., Schmidt, K., Siwek Wilczynska, I., Skwira Chalot, A., Sochocka, L., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Published
2008

32. Investigation of the isospin dependances in Sn+Ni and Sn+Al systems

Author

K. Schmidt, F. Amorini, A. Anzalone, L. Auditore, V. Baran, A. Benisz, I. Berceanu, A. Bonasera, B. Borderie, J. Borgenstajn, R. Bougault, M. Bruno, J. Brzychczyk, G. Cardella, S. Cavallaro, R. Coniglione, B. Chatterjee A. Chbihi, M. Colonna, M. D'Agostino, R. Dayras, E. De Filippo, M. Di Toro, J. D. Frankland, E. Galichet, W. Gawlikowicz, E. Geraci, G. Giuliani, F. Giustolisi, A. Grzeszczuk, P. Guazzoni, D. Guinet, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzanò, N. Le Neindre, J. Lukasik, C. Maiolino, Z. Majka, N. G. Nicolis, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, R. Planeta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, S. Russo, P. Russotto, K. Siwek Wilczynska, I. Skwira Chalot, A. Sochocka, L. Swiderski, A. Trifirò, M. Trimarchi, G. Vannini, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, B.Borderie, J.D.Frankland, A.Pagano, S.Pirrone, F.Rizzo, K., Schmidt, F., Amorini, A., Anzalone, L., Auditore, V., Baran, A., Benisz, I., Berceanu, A., Bonasera, B., Borderie, J., Borgenstajn, R., Bougault, M., Bruno, J., Brzychczyk, G., Cardella, S., Cavallaro, R., Coniglione, B. Chatterjee A., Chbihi, M., Colonna, M., D'Agostino, R., Dayra, E., De Filippo, M., Di Toro, J. D., Frankland, E., Galichet, W., Gawlikowicz, E., Geraci, G., Giuliani, F., Giustolisi, A., Grzeszczuk, P., Guazzoni, D., Guinet, S., Kowalski, E., La Guidara, G., Lanzalone, G., Lanzanò, N., Le Neindre, J., Lukasik, C., Maiolino, Z., Majka, N. G., Nicoli, A., Pagano, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, R., Planeta, G., Politi, A., Pop, F., Porto, M. F., Rivet, Rosato, Elio, F., Rizzo, S., Russo, P., Russotto, K., Siwek Wilczynska, I., Skwira Chalot, A., Sochocka, L., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Published
2008

33. 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

34. NMR studies on the surface accessibility of the archaeal protein Sso7d by using TEMPOL and d(III)(DTPA-BMA) as paramagnetic probes

Author

A. Bernini, V. Venditti, O. Spiga, A. Ciutti, F. Prischi, R. Consonni, L. Zetta, I. Arosio, P. Fusi, N. Niccolai, GUAGLIARDI, ANNAMARIA, A., Bernini, V., Venditti, O., Spiga, A., Ciutti, F., Prischi, R., Consonni, L., Zetta, I., Arosio, P., Fusi, Guagliardi, Annamaria, and N., Niccolai

Abstract

Understanding how proteins are approached by surrounding molecules is fundamental to increase our knowledge of life at atomic resolution. Here, the surface accessibility of a multifunctional small protein, the archaeal protein Sso7d from Sulfolobus solfataricus, has been investigated by using TEMPOL and Gd(III)(DTPABMA) as paramagnetic probes. The DNA binding domain of Sso7d appears very accessible both to TEMPOLand Gd(III)(DTPA-BMA). Differences in paramagnetic attenuation profiles of 1H–15N HSQC protein backbone amide correlations, observed in the presence of the latter paramagnetic probes, are consistent with the hydrogen bond acceptor capability of the N-oxyl moiety of TEMPOL to surface exposed Sso7d amide groups. By using the gadolinium complex as a paramagnetic probe a better agreement between Sso7d structural features and attenuation profile is achieved. It is interesting to note that the protein P-loop region, in spite of the high surface exposure predicted by the available protein structures, is not approached by TEMPOL and only partially by Gd(III)(DTPA-BMA).

Published
2008

35. Dynamical emission in 112-124Sn + 58-64Ni reactions at 35 a MeV as seen in CHIMERA

Author

P. Russotto, E. Piasecki, F. Amorini, A. Anzalone, L. Auditore, V. Baran, I. Berceanu, J. Blicharska, J. Brzychczyk, B. Borderie, R. Bougault, M. Bruno, G. Cardella, S. Cavallaro, B. Chatterjee A. Chbihi, M. Colonna, M. D'Agostino, R. Dayras, E. De Filippo, M. Di Toro, J. D. 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, A. Pagano, M. Papa, M. Petrovici, S. Pirrone, R. Planeta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, K. Schmidt, K. Siwek Wilczynska, I. Skwira Chalot, A. Sochocka, L. Swiderski, A. Trifirò, M. Trimarchi, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, B.Borderie, J.D.Frankland, A.Pagano, S.Pirrone, F.Rizzo, P., Russotto, E., Piasecki, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, J., Blicharska, J., Brzychczyk, B., Borderie, R., Bougault, M., Bruno, G., Cardella, S., Cavallaro, B. Chatterjee A., Chbihi, M., Colonna, M., D'Agostino, R., Dayra, E., De Filippo, M., Di Toro, J. D., 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, A., Pagano, M., Papa, M., Petrovici, S., Pirrone, R., Planeta, G., Politi, A., Pop, F., Porto, M. F., Rivet, Rosato, Elio, F., Rizzo, K., Schmidt, K., Siwek Wilczynska, I., Skwira Chalot, A., Sochocka, L., Swiderski, A., Trifirò, M., Trimarchi, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Published
2008

36. Ethylene−Norbornene Copolymer Microstructure. Assessment and Advances Based on Assignments of 13C NMR Spectra

Author

Tritto, I Marestin, C Boggioni, L Zetta, L Provasoli, and A Ferro

Subjects
Materials science, Ethylene, Polymers and Plastics, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Catalysis, Inorganic Chemistry, chemistry.chemical_compound, Tacticity, Polymer chemistry, Materials Chemistry, Copolymer, HOMOGENEOUS METALLOCENE, KINETICS, Norbornene, PROPENE, Organic Chemistry, OLEFIN POLYMERIZATION, Carbon-13 NMR, 021001 nanoscience & nanotechnology, Microstructure, 0104 chemical sciences, chemistry, HALF-SANDWICH CATALYSTS, Physical chemistry, 0210 nano-technology, Stoichiometry
Abstract

A best-fitting procedure for the quantitative determination of the molar fractions of the stereosequences that define the microstructure of an ethylene−norbornene (E−N) copolymer from 13C NMR spectra has been set up. The quantitative determination of copolymer microstructure will allow one to clarify the E−N copolymerization mechanism. This method utilizes the observed peak areas of the 13C signals and takes into account the consistency between peak areas and the stoichiometry of the copolymer chain. Thus, a further extension of signal assignments is made possible by guessing assignments of unknown signals and by discarding inconsistent hypotheses. This procedure has been applied to the analysis of the 13C NMR spectra of a large number of E−N copolymers, prepared with catalyst precursors rac-Et(indenyl)2ZrCl2 (1), rac-Me2Si(2-Me-benz[e]indenyl)2ZrCl2 (2), Me2Si(Me4Cp)(NtBu)TiCl2 (3), and Me2C(Flu)(Cp)ZrCl2 (4). An estimate of the molar fractions of the various stereosequences with a standard deviation on ...

Published
2000
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37. The enhanced data acquisition system for the 4/spl pi/ detector CHIMERA

Author

S. Pirrone, A. Anzalone, M. Bartolucci, M. L. Sperduto, R. Papa, S. Sambataro, G.R. Sechi, M. Geraci, G. Manfredi, Monica Alderighi, G. Lanzano, S. Femino, L. Zetta, F. Porto, G. Cardella, F. Giustolisi, S. Cavallaro, M. G. Campisi, A. Greco, C.M.I. Manno, Salvatore Lo Nigro, Sebastiano Aiello, E. Geraci, C. M. Sutera, G. Lanzalone, E. De Filippo, G. Politi, A. Pagano, and P. Guazzoni

Subjects
Nuclear and High Energy Physics, Engineering, business.industry, Detector, Data link, Data acquisition, Nuclear Energy and Engineering, Control system, Transfer (computing), Nuclear electronics, Central processing unit, Electrical and Electronic Engineering, business, Computer hardware, VMEbus
Abstract

CHIMERA is a second generation 4/spl pi/ detector for high resolution light particle and fragment measurements in the field of intermediate energy nuclear reactions. An enhanced data acquisition, control and trigger system has been developed to manage the almost 5000 electronic channels of the detector. The data acquisition system is based on a Fast Data Link (FDL) connection between 9U VME crates. The FDL is a highly programmable VME device. It performs data readout and transfer to a destination VME CPU, the FIC8243, running the real time OS9 operating system. Data read and transfer is performed by a fast protocol (Sparse Data Scan) whose performances have been improved introducing the Chained Block Transfer mode (CBLT) technique. Data collected by the CPU are broadcast to analysis work-stations for on-line data analysis and storage. All commands from and to the VME CPU are sent by socket-based network protocols. Complete remote control of the electronic front-end is obtained by a system of client-server applications. A first level event selection and control during readout is made by a trigger system based on a new VME 9U board (MUSE), fully integrated with the FDL readout system.

Published
2000
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38. The on-line computational and control system for the 4/spl pi/-detector CHIMERA

Author

D. Salvadori, G. Lanzano, G. Manfredi, S. Cavallaro, L. Zetta, G. Lanzalone, S. Pirrone, M. L. Sperduto, F. Giustolisi, G. Politi, Monica Alderighi, G. Cardella, E. Geraci, E. De Filippo, C. M. Sutera, Sebastiano Aiello, A. Anzalone, M. Bartolucci, G.R. Sechi, S. LoNigro, S. Femino, M. Papa, F. Porto, M. Geraci, A. Greco, A. Pagano, P. Guazzoni, C. M. Iacono-Manno, and S. Sambataro

Subjects
Ethernet, Nuclear and High Energy Physics, Windows NT, Computer science, business.industry, Interface (computing), Local area network, Electrical engineering, Pentium, Data acquisition, Software, Nuclear Energy and Engineering, Electrical and Electronic Engineering, business, Host (network), Computer hardware
Abstract

A commercial two-DSP-based board is the basic unit of the on-line computational and control system under development for the multidetector array CHIMERA. The system design includes a small scale parallel and distributed architecture of PCs and DSP boards. The PCs are used both as host computer and interface between user and network. Each PC can host up to three DSP boards. The system is able to accomplish the on-beam control of CHIMERA, by means of the on-line computation of special algorithms, instead of using the usual techniques of special pulses to be sent off-beam. The physical data, collected and organized in UDP packets by the data acquisition system, are read through a 10 Mbit/s Ethernet network. The PC software, running under Windows NT 4.0, is based on threads and assures the communication and program managing as well as the result presentation. The DSP-software is written in C++ and takes care of the communication with the PC and of the computation of algorithms. The preliminary on beam results for the first three wheels (about 100 telescopes), obtained by employing two biprocessor boards located in the PCI bus of a Pentium MMX PC, are also presented.

Published
2000
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39. Present and future activity with the CHIMERA 4π detector

Author

G. Cardella, C. Agodi, F. Amorini, A. Anzalone, N. Arena, L. Auditore, R. Barnà, A. Benisz, I. Berceanu, S. Cavallaro, E. De Filippo, U. Emanuele, W. Gawlikowicz, L. Grassi, G. Giuliani, F. Giustolisi, A. Grzeszczuk, P. Guazzoni, S. Kowalski, E. La Guidara, G. Lanzalone, I. Lombardo, S. Lo Nigro, D. Loria, C. Maiolino, N. G. Nicolis, A. Pagano, M. Papa, I. Pawelczak, M. Petrovici, E. Piasecki, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, F. Previdi, M. Quinlan, F. Rizzo, P. Russotto, U. Schroder, I. Skwira Chalot, V. Sipala, K. Siwek Wilczynska, K. Schmidt, M. L. Sperduto, A. Sochocka, M. Stiro, Ł. Swiderski, A. Trifirò, M. Trimarchi, J. Toke, G. Verde, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, B.Borderie, J.D.Frankland, A.Pagano, S.Pirrone, F.Rizzo, G., Cardella, C., Agodi, F., Amorini, A., Anzalone, N., Arena, L., Auditore, R., Barnà, A., Benisz, I., Berceanu, S., Cavallaro, E., De Filippo, U., Emanuele, W., Gawlikowicz, L., Grassi, G., Giuliani, F., Giustolisi, A., Grzeszczuk, P., Guazzoni, S., Kowalski, E., La Guidara, G., Lanzalone, I., Lombardo, S., Lo Nigro, D., Loria, C., Maiolino, N. G., Nicoli, A., Pagano, M., Papa, I., Pawelczak, M., Petrovici, E., Piasecki, S., Pirrone, R., Płaneta, G., Politi, A., Pop, F., Porto, F., Previdi, M., Quinlan, F., Rizzo, Rosato, Elio, P., Russotto, U., Schroder, I., Skwira Chalot, V., Sipala, K., Siwek Wilczynska, K., Schmidt, M. L., Sperduto, A., Sochocka, M., Stiro, Ł., Swiderski, A., Trifirò, M., Trimarchi, J., Toke, G., Verde, Vigilante, Mariano, J., Wilczynski, L., Zetta, and W., Zipper

Published
2007

40. Dynamical multi-breakup processes in the 124Sn+64Ni system at 35 MeV/nucleon

Author

M. Papa, F. Amorini, A. Anzalone, L. Auditore, V. Baran, I. Berceanu, J. Blicharska, J. Brzychczyk, A. Bonasera, B. Borderie, R. Bougault, G. Cardella, S. Cavallaro, M. B. Chatterjee, A. Chbihi, M. Colonna, R. Dayras, E. De Filippo, M. Di Toro, J. Frankland, E. Galichet, W. Gawlikowicz, G. Giuliani, F. Giustolisi, A. Grzeszczuk, P. Guazzoni, D. Guinet, M. Iacono Manno, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzano', C. Maiolino, Z. Majka, N. Le Neindre, A. Pagano, M. Petrovici, E. Piasecki, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, F. Rizzo, E. Rosato, S. Russo, P. Russotto, M. Sassi, K. Schmidt, K. Siwek Wilczynska, I. Skwira, A. Sochocka, L. Swiderski, A. Trifiro', M. Trimarchi, G. Verde, M. Vigilante, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, GERACI, ELENA IRENE, VANNINI, GIANNI, 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 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), Istituto Nazionale di Fisica Nucleare, Sezione di Catania (INFN), Università degli studi di Catania [Catania], 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), 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), Università degli studi di Catania = University of Catania (Unict), 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), M. Papa, F. Amorini, A. Anzalone, L. Auditore, V. Baran, I. Berceanu, J. Blicharska, J. Brzychczyk, A. Bonasera, B. Borderie, R. Bougault, G. Cardella, S. Cavallaro, M. B. Chatterjee, A. Chbihi, M. Colonna, 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, M. Iacono-Manno, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzano', C. Maiolino, Z. Majka, N. Le Neindre, A. Pagano, M. Petrovici, E. Piasecki, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, F. Rizzo, E. Rosato, S. Russo, P. Russotto, M. Sassi, K. Schmidt, K. Siwek-Wilczynska, I. Skwira, A. Sochocka, L. Swiderski, A. Trifiro', M. Trimarchi, G. Vannini, G. Verde, M. Vigilante, J. P. Wieleczko, J. Wilczynski, L. Zetta, and W. Zipper

Subjects
BREAK-UP, 25.70.Mn, 24.10.Cn, 25.70.Pq, MOLECULAR DYNAMICS, EXPERIMENT, HEAVY-ION COLLISIONS, FISSION, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; Multi-breakup processes for the $^{124}$Sn+$^{64}$Ni system at 35 MeV/nucleon have been studied with the forward part of the CHIMERA detector. An extensive comparison between experimental data corresponding to almost complete ternary events and constrained molecular dynamics (CoMD-II) calculations suggests different characteristic times in the selected processes. This is in agreement with previous studies of the same reaction already published concerning the prompt intermediate-mass-fragment emission. Stimulated by CoMD-II calculations, we investigate the existence of more complex dynamical multi-breakup processes occurring on the same time scale. A detailed study of the rotational dynamics leading to slower dynamical fission processes is also presented.

Published
2007
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41. Isospin effects studied with the CHIMERA dertector at 35 MeV/nucleon

Author

R. Planeta, 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, E. De Filippo, R. Dayras, 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, J. Lukasik, C. Maiolino, Z. Majka, N. Le Neindre, N. G. Nicolis, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, S. Russo, P. Russotto, M. Sassi, K. Schmidt, K. Siwek Wilczynska, I. Skwira Chalot, A. Sochocka, M. L. Sperduto, L. Swiderski, A. Trifirò, M. Trimarchi, G. Vannini, G. Verde, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, R., Planeta, 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, E., De Filippo, 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, 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, L., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, G., Verde, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Published
2006

42. Identification of 8Be isotopes in the CsI of CHIMERA detector

Author

W. Zipper, J. Blicharska, A. Grzeszczuk, M. Krauze, A. Stasz, M. Alderighi, A. Anzalone, L. Auditore, R. Barnà, V. Baran, I. Berceanu, M. Bartolucci, A. Bonasera, B. Borderie, R. Bougault, M. Bruno, J. Brzychczyk, G. Cardella, S. Cavallaro, A. Chbihi, M. Colonna, M. D’Agostino, R. Dayras, E. De Filippo, D. De Pasquale, M. Di Toro, W. Gawlikowicz, E. Geraci, F. Giustolisi, P. Guazzoni, D. Guinet, M. Iacono Manno, S. Kowalski, A. Italiano, E. La Guidara, G. Lanzanò, G. Lanzalone, N. Le Neindre, S. Li, S. Lo Nigro, C. Maiolino, Z. Majka, G. Manfredi, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, R. Russo, P. Russotto, K. Schmidt, G. Sechi, V. Simion, M. L. Sperduto, J. C. Steckmeyer, A. Trifirò, M. Trimarchi, G. Vannini, J. P. Wieleczko, J. Wilczynski, H. Wu, X. Ziao, L. Zetta, ROSATO, ELIO, VIGILANTE, MARIANO, R.Bougault, A.Pagano, S.Pirrone, M.F.Rivet e F.Rizzo, W., Zipper, J., Blicharska, A., Grzeszczuk, M., Krauze, A., Stasz, M., Alderighi, A., Anzalone, L., Auditore, R., Barnà, V., Baran, I., Berceanu, M., Bartolucci, A., Bonasera, B., Borderie, R., Bougault, M., Bruno, J., Brzychczyk, G., Cardella, S., Cavallaro, A., Chbihi, M., Colonna, M., D’Agostino, R., Dayra, E., De Filippo, D., De Pasquale, M., Di Toro, W., Gawlikowicz, E., Geraci, F., Giustolisi, P., Guazzoni, D., Guinet, M., Iacono Manno, S., Kowalski, A., Italiano, E., La Guidara, G., Lanzanò, G., Lanzalone, N., Le Neindre, S., Li, S., Lo Nigro, C., Maiolino, Z., Majka, G., Manfredi, A., Pagano, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, R., Płaneta, G., Politi, A., Pop, F., Porto, M. F., Rivet, F., Rizzo, Rosato, Elio, R., Russo, P., Russotto, K., Schmidt, G., Sechi, V., Simion, M. L., Sperduto, J. C., Steckmeyer, A., Trifirò, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, H., Wu, X., Ziao, and L., Zetta

Published
2006

43. Dynamic multi-break processes in the 124Sn+64Ni at 35 Mev/nucleon and the CoMD-II calculations

Author

M. Papa, 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. Colonna, M. D’Agostino, R. Dayras, E. De Filippo, M. Di Toro, J. Frankland, E. Galichet, W. Gawlikowicz, E. Geraci, G. Giuliani, F. Giustolisi, A. Grzeszczuk, P. Guazzoni, D. Guinet, M. Iacono Manno, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzanò, C. Maiolino, Z. Majka, N. Le Neindre, A. Pagano, M. Petrovici, E. Piasecki, S. Pirrone, R. Planeta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, S. Russo, P. Russotto, M. Sassi, K. Schmidt, K. Siwek Wilczynska, I. Skwira, A. Sochockas, Ł. Swiderski, A. Trifirò, M. Trimarchi, G. Vannini, G. Verde, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Z.i.p.p.e.r. ., ROSATO, ELIO, VIGILANTE, MARIANO, R.Bougault, A.Pagano, S.Pirrone, M.F.Rivet e F.Rizzo, M., Papa, 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., 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, M., Iacono Manno, S., Kowalski, E., La Guidara, G., Lanzalone, G., Lanzanò, C., Maiolino, Z., Majka, N., Le Neindre, A., Pagano, 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, A., Sochocka, Ł., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, G., Verde, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W. Z. i. p. p. e. r., .

Published
2006

44. Study of the quasi projectile in the 124Sn+64Ni and 112Sn+58Ni reactions

Author

E. Galichet, 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. Dayras, E. De Filippo, M. Di Toro, J. Frankland, W. Gawlikowicz, E. Geraci, F. Giustolisi, A. Grzeszczuk, P. Guazzoni, D. Guinet, M. Iacono Manno, S. Kowalski, E. La Guidara, G. Lanzalone, G. Lanzanò, C. Maiolino, Z. Majka, N. Le Neindre, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, S. Russo, P. Russotto, M. Sassi, K. Schmidt, K. Siwek Wilczynska, I. Skwira, A. Sochockas, Ł. Swiderski, A. Trifirò, M. Trimarchi, G. Vannini, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, R.Bougault, A.Pagano, S.Pirrone, M.F.Rivet e F.Rizzo, E., Galichet, 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, W., Gawlikowicz, E., Geraci, F., Giustolisi, A., Grzeszczuk, P., Guazzoni, D., Guinet, M., Iacono Manno, S., Kowalski, E., La Guidara, G., Lanzalone, G., Lanzanò, C., Maiolino, Z., Majka, N., Le Neindre, A., Pagano, M., Papa, M., Petrovici, E., Piasecki, S., Pirrone, R., Płaneta, 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, A., Sochocka, Ł., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Published
2006

45. Fragment-fragment correlation in the nuclear reaction 124Sn+64Ni at 35A MeV with CHIMERA

Author

C. Maiolino, C. Agodi, R. Alba, F. Amorini, A. Anzalone, L. Auditore, V. Baran, I. Berceanu, J. Blicharska, J. Brzy chczyk, B. Borderie, R. Bougault, M. Bruno, G. Cardella, S. Cavallaro, R. Coniglione, M. B. Chatterjee, A. Chbihi, J. Cibor, M. Colonna, M. D’Agostino, E. De Filippo, R. Dayras, A. Del Zoppo, 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. Lanzanò, G. Lanzalone, N. Le Neindre, Z. Majka, A. Pagano, M. Papa, M. Petrovici, E. Piasecki, S. Pirrone, R. Płaneta, G. Politi, A. Pop, F. Porto, M. F. Rivet, F. Rizzo, S. Russo, P. Russotto, D. Santonocito, P. Sapienza, M. Sassi, K. Schmidt, K. Siwek Wilczynska, I. Skwira, M. L. Sperduto, Ł. Swiderski, A. Trifirò, M. Trimarchi, G. Vannini, J. P. Wieleczko, J. Wilczynski, L. Zetta, W. Zipper, ROSATO, ELIO, VIGILANTE, MARIANO, I.Iori, A.Bortolotti, C., Maiolino, C., Agodi, R., Alba, F., Amorini, A., Anzalone, L., Auditore, V., Baran, I., Berceanu, J., Blicharska, J., Brzy chczyk, B., Borderie, R., Bougault, M., Bruno, G., Cardella, S., Cavallaro, R., Coniglione, M. B., Chatterjee, A., Chbihi, J., Cibor, M., Colonna, M., D’Agostino, E., De Filippo, R., Dayra, A., Del Zoppo, 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., Lanzanò, G., Lanzalone, N., Le Neindre, Z., Majka, 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, P., Russotto, D., Santonocito, P., Sapienza, M., Sassi, K., Schmidt, K., Siwek Wilczynska, I., Skwira, M. L., Sperduto, Ł., Swiderski, A., Trifirò, M., Trimarchi, G., Vannini, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, L., Zetta, and W., Zipper

Published
2005

46. Dynamical fission in 124Sn+64Ni collision at 35A MeV

Author

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, 1 G. Cardella, S. Cavallaro, M. B. Chatterjee, A. Chbihi, M. Colonna, R. Dayras, M. Di Toro, J. Frankland, E. Galichet, W. Gawlikowicz, 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, M. Papa, M. Petrovici, S. Pirrone, R. Baneta, G. Politi, A. Pop, F. Porto, M. F. Rivet, E. Rosato, 1 F. Rizzo, S. Russo, P. Russotto, M. Sassi, K. Schmidt, K. Siwek Wilczy´nska, I. Skwira, M. L. Sperduto, J. C. Steckmeyer, A. ´Swiderski, A. Trifiro', M. Trimarchi, M. Vigilante, J. P. Wieleczko, J. Wilczy´nski, H. Wu, Z. Xiao, L. Zetta, W. Zipper, BRUNO, MAURO, D'AGOSTINO, MICHELA, GERACI, ELENA IRENE, VANNINI, GIANNI, 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, 1 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, M. Iacono-Manno, S. Kowalski, E. La Guidara, G. Lanzano', G. Lanzalone, N. Le Neindre, S. Li, S. Lo Nigro, C. Maiolino, Z. Majka, M. Papa, M. Petrovici, S. Pirrone, R. Baneta, G. Politi, A. Pop, F. Porto, M. F. Rivet, E. Rosato, 1 F. Rizzo, S. Russo, P. Russotto, M. Sassi, K. Schmidt, K. Siwek-Wilczy´nska, I. Skwira, M. L. Sperduto, J. C. Steckmeyer, A. ´Swiderski, A. Trifiro', M. Trimarchi, G. Vannini, M. Vigilante, J. P. Wieleczko, J. Wilczy´nski, H. Wu, Z. Xiao, L. Zetta, and W. Zipper

Published
2005

47. The data acquisition and control system for the 4/spl pi/ detector CHIMERA

Author

G. Lanzalone, M. L. Sperduto, F. Giustolisi, A. Pagano, P. Guazzoni, A. Anzalone, F. Porto, G. Cardella, G. Lanzano, S. Pirrone, C.M. Jacono-Manno, S. Cavallaro, C. M. Sutera, Sebastiano Aiello, S. Femino, E. De Filippo, L. Zetta, M. Geraci, S. Lo Nigro, F. Rizzo, Michele Papa, G. Politi, and S. Sambataro

Subjects
Ethernet, Nuclear and High Energy Physics, Engineering, business.industry, Detector, Electrical engineering, Data acquisition, Nuclear Energy and Engineering, Nuclear electronics, Electrical and Electronic Engineering, business, Throughput (business), Energy (signal processing), Data transmission, VMEbus
Abstract

CHIMERA (Charged Heavy Ions Mass and Energy Resolving Array), a new 4/spl pi/ detector for charged particles is under development at various sites of the Istituto Nazionale di Fisica Nucleare. This paper describes the new data acquisition system built to handle the signals coming out from the detector with a rate up to 1 kHz on almost 5000 electronic channels. The required average throughput for the system is in the order of the 1 MB/s. The used converters allow double-range conversion on 15 bits, in less than 50 /spl mu/s for all the 64 channels. The FDL link connects the different VME 9U crates performing a programmable hardware readout with a rate up to 100 MB/s. It uses a fast hardware protocol (Sparse Data Scan) to read the data buffers and send them to a FIC 8243 CPU board. A FIC 8243 dual-processor board forwards data (through Ethernet) to the analysis station (266 MHz Digital AlphaStation or Sun Sparcstation). A DLT (Digital Linear Tape) unit connected to analysis station is used to store data. The new data acquisition system has been tested under beam conditions at the Laboratorio Nazionale del Sud (Catania, Italy) and at GANIL (Caen, France).

Published
1998
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48. Data acquisition and real-time computing by a DSP-based system

Author

E. DeFilippo, G. Cardella, S. Pirrone, M. Bartolucci, L. Sperduto, C. Sutera, Angelo Pagano, G. Lanzalone, M. Geraci, P. Guazzoni, F. Porto, F. Giustolisi, G. Lanzano, S. Femino, M. Iacono Manno, A. Anzalone, M. Papa, G. Politi, S. Cavallaro, L. Zetta, S. Lo Nigro, Sebastiano Aiello, F. Rizzo, G. Manfredi, and S. Sambataro

Subjects
Nuclear and High Energy Physics, Digital signal processor, Data processing, business.industry, Computer science, Interface (computing), Converters, Programmable logic device, Data acquisition, Table (database), business, Instrumentation, Digital signal processing, Computer hardware
Abstract

A digital signal processor (DSP) based two-parameter data acquisition system, connected to two analog-to-digital converters (ADCs) by means of an ad hoc built interface, was developed in order to perform real-time, on-line data processing. The interface, realized with programmable logic devices (PLD); may also work as a table of pre-computed values through which it is possible to carry out a simple analysis on the incoming or outcoming data.

Published
1998
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49. Isoscaling in central 124Sn+64Ni, 112Sn+58Ni collisions

Author

E. GERACI, M. BRUNO, M. D'AGOSTINO, E. DE FILIPPO, A. PAGANO, G. VANNINI, M. ALDERIGHI, A. ANZALONE, V. BARAN, R. BARN, M. BARTOLUCCI, I. BERCEANU, J. BLICHARSKA, A. BONASERA, B. BORDERIE, R. BOUGAULT, J. BRZYCHCZYK, G. CARDELLA, S. CAVALLA RO, A. CHBIHI, J. CIBOR, M. COLONNA, D. DE PASQUALE, M. DI TORO, F. GIUSTOLISI, A. GRZESZCZUK, P. GUAZZONI, D. GUINET, M. IA CONO MANNO, A. ITALIANO, S. KOWALSKI, E. LA GUIDARA, G. LANZALONE, G. LANZAN, N. LE NEINDRE, S. LI, S. LO NI GRO, C. MAIOLI NO, Z. MAJKA, G. MANFREDI, T. PADUSZYNSKI, M. PAPA, C. M. PETROVICI, E. PIASECKI, S. PIRRONE, G. POLITI, A. POP, F. PORTO, M. F. RIVET, S. RUSSO, P. RUSSOTTO, G. SECHI, V. SIMION, M. L. SPERDUTO, J. C. STECKMEYER, A. TRIFIR, M. TRIMARCHI, J. P. WIELECZKO, J. WILCZYNSKI, H. WU, Z. XIAO, L. ZETTA E. W. ZIPPER, ROSATO, ELIO, VIGILANTE, MARIANO, E., Geraci, M., Bruno, M., D'Agostino, E., DE FILIPPO, A., Pagano, G., Vannini, M., Alderighi, A., Anzalone, V., Baran, R., Barn, M., Bartolucci, I., Berceanu, J., Blicharska, A., Bonasera, B., Borderie, R., Bougault, J., Brzychczyk, G., Cardella, S., CAVALLA RO, A., Chbihi, J., Cibor, M., Colonna, D., DE PASQUALE, M., DI TORO, F., Giustolisi, A., Grzeszczuk, P., Guazzoni, D., Guinet, M., IA CONO MANNO, A., Italiano, S., Kowalski, E., LA GUIDARA, G., Lanzalone, G., Lanzan, N., LE NEINDRE, S., Li, S., LO NI GRO, C., MAIOLI NO, Z., Majka, G., Manfredi, T., Paduszynski, M., Papa, C. M., Petrovici, E., Piasecki, S., Pirrone, G., Politi, A., Pop, F., Porto, M. F., Rivet, Rosato, Elio, S., Russo, P., Russotto, G., Sechi, V., Simion, M. L., Sperduto, J. C., Steckmeyer, A., Trifir, M., Trimarchi, Vigilante, Mariano, J. P., Wieleczko, J., Wilczynski, H., Wu, Z., Xiao, and L. ZETTA E. W., Zipper

Published
2004

50. 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

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