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401. Probing the Merits of Different Event Parameters for the Identification of Light Charged Particles in CHIMERA CsI(Tl Detectors With Digital Pulse Shape Analysis

Author

G. Politi, L. Grassi, G. Cardella, P. Russotto, C Guazzoni, W. Trautmann, Antonio Trifiro, Triestino Minniti, F. Rizzo, E. De Filippo, S. Santoro, Giuseppe Verde, M. Kiš, L. Acosta, C. Boiano, S. Pirrone, F. Amorini, Michele Papa, P. Zambon, F. Porto, A. Pagano, P. Guazzoni, R. Bassini, E. La Guidara, F. Riccio, Yvonne Leifels, L. Zetta, I. Lombardo, Acosta, L., Amorini, F., Bassini, R., Boiano, C., Cardella, G., De Filippo, E., Grassi, L., Guazzoni, C., Guazzoni, P., Kiš, M., La Guidara, E., Leifels, Y., Lombardo, I., Minniti, T., Pagano, A., Papa, M., Pirrone, S., Politi, G., Porto, F., Riccio, F., Rizzo, F., Russotto, P., Santoro, S., Trautmann, W., Trifirò, A., Verde, G., Zambon, P., and Zetta, L.

Subjects
Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, intermediate energy nuclear physic, pulse shape analysi, Scintillator, Particle identification, law.invention, Optics, law, Electrical and Electronic Engineering, Digital signal processing, Physics, online digital signal processing, Signal processing, sezele, CsI(Tl) scintillators, business.industry, pulse shape analysis, Detector, CsI(Tl) scintillator, intermediate energy nuclear physics, particle identification, Nuclear Energy and Engineering, Charged particle, Photodiode, Rise time, business, nuclear physics, heavy-ions, digital signal processing, scintillation detectors
Abstract

We investigated the merits of different event parameters in the identification of Light Charged Particles (LCPs) with CsI(Tl) scintillators read out by photodiodes at high incident energy (400 MeV/u). This investigation is made possible by digital signal processing the output signals. As in the conventional analogue case, the digitized signals allow the discrimination of light charged particles by computing the fast and slow components. In addition other identification parameters as the rise time of the output pulses of the CsI(Tl) come out nearly for free. Aim of this paper is the investigation of novel identification plots and the probe of their merits, in particular at relativistic energies. When the energies of the light charged particles exceed those corresponding to their ranges in CsI(Tl), the points related to the punching-through particles gather in the corresponding scatter plots giving rise to a cusp. The punch-through energies provide a complete set of data for the energy calibration of the reaction products stopped in the CsI(Tl). The obtained results suggest that at relativistic beam energies the energy vs. rise time computation provide an efficient figure for the discrimination in charge and mass of LCPs.

Published
2013

402. The Farcos project: Femtoscope Array for Correlations and Femtoscopy

Author

E. De Filippo, Luis Acosta, S. Santoro, Ismael Martel, Giuseppe Verde, M. Papa, G. Cardella, E. Morgana, Triestino Minniti, F. Amorini, F. Rizzo, R. Bassini, Lucrezia Auditore, Angelo Pagano, M. Trimachi, E. La Guidara, A. M. Sánchez-Benítez, L. Francalanza, D. Loria, G. Politi, S Gianí, A. Chbihi, F. Porto, Ivano Lombardo, G. Lanzalone, C. Boiano, Chiara Guazzoni, P. Russotto, L. Quattrocchi, A. Trifirò, S. Pirrone, E. V. Pagano, Verde, G., Acosta, L., Minniti, T., Amorini, F., Auditore, L., Bassini, R., Boiano, C., Cardella, G., Chbihi, A., De Filippo, E., Francalanza, L., Gianí, S., Guazzoni, C., Martel, I., La Guidara, E., Lanzalone, G., Lombardo, I., Loria, D., Morgana, E., Pagano, A., Pagano, E., Papa, M., Pirrone, S., Politi, G., Porto, F., Quattrocchi, L., Rizzo, F., Russotto, P., Sánchez-Benitez, A., Santoro, S., Trifiró, A., and Trimachi, M.

Subjects
History, Engineering, Physics and Astronomy (all), Optics, sezele, business.industry, Electrical engineering, Detector array, business, Computer Science Applications, Education
Abstract

The Farcos project (Femtoscope Array for Correlations and Spectroscopy) is discussed in this contribution. It consists of a new detector array designed and constructed by Exochim-Chimera group at INFN of Catania and Laboratori Nazionali del Sud. The array is described in its design and scientific goals to address. Some of the first preliminary tests with radioactive sources and beams are also discussed, together with some highlights of future perspectives.

Published
2013

403. 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

404. Use of fragmentation beams at LNS with CHIMERA detector

Author

Lucrezia Auditore, L. Francalanza, E. DeFilippo, F. Rizzo, F. Amorini, Mariano Vigilante, G. Politi, E. La Guidara, G. Cardella, Mario Buscemi, S. Santoro, F. Porto, D. Loria, P. Russotto, C. Agodi, G. Lanzalone, R. Gianì, M. Trimarchi, Triestino Minniti, Giuseppe Verde, E. V. Pagano, I. Berceanu, L. Grassi, A. Anzalone, S. Pirrone, Michele Papa, L. Acosta, A. Pagano, M.B. Chatterjiee, Ivano Lombardo, Elio Rosato, A. Trifirò, Cardella, G., Acosta, L., Agodi, C., Amorini, F., Anzalone, A., Auditore, L., Berceanu, I., Buscemi, M., Chatterjiee, M., Defilippo, E., Francalanza, L., Gianí, R., Grassi, L., La Guidara, E., Lanzalone, G., Lombardo, I., Loria, D., Minniti, T., Pagano, A., Pagano, E., Papa, M., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Rosato, E., Russotto, P., Santoro, S., Trifiró, A., Trimarchi, M., Verde, G., Vigilante, M., J.D.Frankland, A.Pagano, S.Pirrone, m.F.Rivet, F.Rizzo, G., Cardella, L., Acosta, C., Agodi, F., Amorini, A., Anzalone, L., Auditore, I., Berceanu, M., Buscemi, M. B., Chatterjiee, E., Defilippo, L., Francalanza, R., Gianì, L., Grassi, E., La Guidara, G., Lanzalone, Lombardo, Ivano, D., Loria, T., Minniti, A., Pagano, E. V., Pagano, M., Papa, S., Pirrone, G., Politi, F., Porto, F., Rizzo, Rosato, Elio, P., Russotto, S., Santoro, A., Trifiró, M., Trimarchi, G., Verde, and Vigilante, Mariano

Subjects
radioactive ion beam, Physics, Physics::Instrumentation and Detectors, business.industry, QC1-999, Detector, Engineering physics, Upgrade, Optics, Fragmentation (mass spectrometry), Physics and Astronomy, Physics::Accelerator Physics, Laser beam quality, tagging system, business, fragmentation beam, Beam (structure)
Abstract

The recent intensity upgrade of the LNS fragmentation beam is discussed. The available beams, the tagging procedures and details on the beam quality are reported. The experimental program started with the CHIMERA detector using such beams is also discussed with preliminary results and future perspectives. © Owned by the authors, 2012.

Published
2012

405. Effects of neutron richness on the behavior of nuclear systems at intermediate energies

Author

Cardella, G., Giuliani, G., Papa, M., Acosta, L., Agodi, C., Amorini, F., Anzalone, A., Auditore, L., Berceanu, I., Cavallaro, S., Chatterjee, M. B., De Filippo, E. , Geraci, E. , Grassi, L. , Han, La Guidara, E. , Loria, D. , Lanzalone, G. , Maiolino, C. , Minniti, T. , Pagano, A. , Pirrone, S. , Politi, G. , Porto, F. , Rizzo, F. , Russotto, P. , Santoro, S. , Trifirò, A. , Trimarchi, M. , Verde, LOMBARDO, IVANO, VIGILANTE, MARIANO, Cardella, G., Giuliani, G., Lombardo, I., Papa, M., Acosta, L., Agodi, C., Amorini, F., Anzalone, A., Auditore, L., Berceanu, I., Cavallaro, S., Chatterjee, M., De Filippo, E., Geraci, E., Grassi, L., Han, J., La Guidara, E., Loria, D., Lanzalone, G., Maiolino, C., Minniti, T., Pagano, A., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Russotto, P., Santoro, S., Trifirò, A., Trimarchi, M., Verde, G., Vigilante, M., Lombardo, Ivano, Chatterjee, M. B., De, Filippo, E., Geraci, E., Grassi, L., Han, La, Guidara, E., Loria, D., Lanzalone, G., Maiolino, C., Minniti, T., Pagano, A., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Russotto, P., Santoro, S., Trifirò, A., Trimarchi, M., Verde, and Vigilante, Mariano

Subjects
Physics, Nuclear and High Energy Physics, Ion beam, Multifragment emission and correlations, Nuclear Theory, Strongly damped collisions, Symmetry (physics), Nuclear physics, Molecular dynamics, Physics::Accelerator Physics, Neutron, Production (computer science), Nuclear Experiment, Nucleon
Abstract

We discuss results concerning the behavior of hot nuclear sources formed in 40 ,48Ca+40 ,48Ca reactions at 25 MeV/nucleon. A correlation between the neutron-to-proton ratio of the total systems and heavy residue production is found. This correlation underlines the strong role played by the neutron-to-proton ratio degree of freedom on the behavior of hot nuclei at intermediate energies. Comparisons of our data with Constrained Molecular Dynamics calculations confirm that a moderately stiff behavior of the symmetry potential must be used to reproduce experimental data. These findings open the way for future investigations with exotic beams at radioactive ion beam facilities. © 2012 American Physical Society.

Published
2012

406. EPJ Web of Conferences

Author

Reylé, C., Robin, A., Schultheis, M., Kim, Hyun-Chul, Nam, Seung-il, Krtička, M., Bečvář, F., Kroll, J., Grenier, B., Simonet, V., Schober, H., Yeh, Nai-Chang, Hakioglu, Tugrul, Choi, Han-Yong, Plastino, W., Povinec, P. P., Wang, A. B., Fraunie, Ph., Skrbek, L., Vit, T., Kopecký, V., de Lange, H., Dvořák, V., Perszynski, K., Prášil, L., Hrubý, J., Vestfálová, M., Neudecker, D., Leeb, H., Hiermaier, S., Bernardi, G., De Cecco, S., Enari, Y., Cheikhrouhou, A., Charpentier, T., Berthault, P., Meis, C., Frankland, J. D., Pagano, A., Pirrone, S., Rivet, M.-F., Rizzo, F., Westerhof, E., Nuij, P. W. J. M., McEvoy, A., Evers, M., Kluth, P., Tims, S. G., Wallner, A., Williams, E., Ceccarelli, C., Faure, A., Wiesenfeld, L., Badalà, A., Bleicher, M., Fabbietti, L., Markert, C., Rapp, R. F., Stroth, J., Wrońska, Aleksandra, Skibiński, Roman, Guaraldo, C., Kistryn, Stanisław, Ströher, H., Ershov, S., Shneydman, T., Vdovin, A., Zubov, A., Saxton, R., and Komossa, S.

Published
2012

407. FARCOS, a new array for femtoscopy and correlation spectroscopy

Author

A. Pagano, Antonio Trifiro, M. Trimachi, A. Anzalone, C Guazzoni, Mario Buscemi, C. Maiolino, L. Francalanza, F. Porto, A.M. Sánchez-Bentez, Giuseppe Verde, Ivano Lombardo, S. Pirrone, Mariano Vigilante, Michele Papa, E. De Filippo, D. Loria, S. Gianì, F. Amorini, M Venhart, R. Berjillos, G. Cardella, E. Geraci, A. Chbihi, L. Acosta, E. La Guidara, E. V. Pagano, Martin Veselsky, Lucrezia Auditore, Triestino Minniti, G. Politi, F. Rizzo, P. Russotto, S. Santoro, Ismael Martel, S. Lo Nigro, J. A. Dueñas, G. Lanzalone, Acosta, L., Pagano, E., Minniti, T., Verde, G., Amorini, F., Anzalone, A., Auditore, L., Buscemi, M., Cardella, G., Chbihi, A., De Filippo, E., Francalanza, L., Geraci, E., Gianì, S., Guazzoni, C., La Guidara, E., Lanzalone, G., Lombardo, I., Lo Nigro, S., Loria, D., Maiolino, C., Martel, I., Pagano, A., Papa, M., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Russotto, P., Sánchez-Bentez, A., Duenas, J., Berjillos, R., Santoro, S., Trifirò, A., Trimachi, M., Venhart, M., Veselsky, M., and Vigilante, M.

Subjects
Physics, Nuclear reaction, sezele, Femto- scope ARray for COrrelations and Spectroscopy, QC1-999, High resolution, Engineering physics, Square (algebra), Computational physics, Physics and Astronomy (all), Spectroscopy, Two-dimensional nuclear magnetic resonance spectroscopy
Abstract

Correlations between two or more particles can be used as a tool to explore the space-time features of nuclear reactions as well as spectroscopic properties of produced unbound clusters. In order to have new options to study the mentioned correlations, FARCOS (Femtoscope ARray for COrrelations and Spectroscopy) has been conceived as a compact high resolution array, composed of square telescopes. In this work the main features of FARCOS array as well as part of the physics cases are described. © Owned by the authors, 2012.

Published
2012

408. Mapping the Amplitude and Position Response of Double Sided Silicon Strip Detectors with Monocromatic Single Protons

Author

F. Amorini, S. Gianì, F. Porto, F. Rizzo, T. Parsani, S. Santoro, Giuseppe Verde, Ismael Martel, Lucrezia Auditore, S. Pirrone, E. V. Pagano, Triestino Minniti, G. Cardella, Ivano Lombardo, A. Chbihi, D. Loria, E. Geraci, A. M. Sánchez-Benítez, A. Pagano, M. Trimachi, F. Riccio, P. Zambon, Chiara Guazzoni, F. Taccetti, Antonio Trifiro, G. Lanzalone, C. Maiolino, G. V. Montemurro, L. Francalanza, S. Lo Nigro, J. A. Dueñas, C. Boiano, R. Berjillos, E. La Guidara, Mariano Vigilante, M. Papa, L. Carraresi, Andrea Castoldi, L. Acosta, E. De Filippo, P. Russotto, A. Anzalone, G. Politi, 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), Acosta, L., Amorini, F., Anzalone, A., Auditore, L., Boiano, C., Cardella, G., Carraresi, L., Castoldi, A., Chbihi, A., De Filippo, E., Francalanza, L., Geraci, E., Giani, S., Guazzoni, C., La Guidara, E., Lanzalone, G., Lombardo, I., Lo Nigro, S., Loria, D., Maiolino, C., Martel, I., Minniti, T., Montemurro, G., Pagano, A., Pagano, E., Papa, M., Parsani, T., Pirrone, S., Politi, G., Porto, F., Riccio, F., Rizzo, F., Russotto, P., Sánchez-Benítez, A., Duenas, J., Berjillos, R., Santoro, S., Taccetti, F., Trifiro, A., Trimachi, M., Verde, G., Vigilante, M., and Zambon, P.

Subjects
Physics, Radiology, Nuclear Medicine and Imaging, Radiation, Proton, sezele, Physics::Instrumentation and Detectors, business.industry, Detector, Signal, Momentum, Nuclear physics, Amplitude, Optics, Physics::Accelerator Physics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Monochromatic color, business, Beam (structure), Nuclear and High Energy Physic
Abstract

International audience; We are currently developing a novel detection system featuring high angular and energy resolution and able to reconstruct the particles momentum at high precision for different physical cases in multi-fragmentation nuclear physics experiments, based on Double Sided Silicon Strip Detectors as ΔE stages aimed at performing also pulse shape analysis for fragments stopping therein. We carried out a detailed qualification of the performance of the strip detectors. In order to provide the detector response matrix we used a pulsed monoenergetic proton beam. The paper reviews the pulsed proton beam facility of the LaBeC of INFN - Sezione di Firenze and present the results of the characterization of the DSSSD prototypes with the pulsed proton beam. In particular we will discuss the amplitude and time response mapping and we will present the analysis of the dependence of the signal shape as a function of the position of interaction.

Published
2012

409. Elastic scattering studies of 16C at 50 MeV/A on proton and deuteron targets with the CHIMERA multidetector at INFN-LNS

Author

G. Lanzalone, Elio Rosato, F. Amorini, L. Grassi, S. Santoro, M. Trimarchi, A. Grzeszczuk, Triestino Minniti, G. Cardella, S. Lo Nigro, E. De Filippo, A. Pagano, D. Loria, Mariano Vigilante, A. Anzalone, Antonio Trifiro, F. Porto, Giuseppe Verde, Michele Papa, S. Pirrone, C. Maiolino, E. Geraci, E. La Guidara, Lucrezia Auditore, G. Politi, M B Chaatterjee, I. Lombardo, P. Russotto, F. Rizzo, C. Agodi, S.J.Freeman, L., Grassi, C., Agodi, F., Amorini, A., Anzalone, L., Auditore, G., Cardella, M. B., Chatterjee, E., De Filippo, E., Geraci, A. G. r. z. e. s. z. c. z. u., K., G., Lanzalone, Lombardo, Ivano, S., Lo Nigro, D., Loria, C., Maiolino, T., Minniti, A., Pagano, E. V., Pagano, M., Papa, S., Pirrone, G., Politi, F., Porto, F., Rizzo, Rosato, Elio, P., Russotto, S., Santoro, A., Trifiró, M., Trimarchi, G., Verde, Vigilante, Mariano, Grassi, L., Agodi, C., Amorini, F., Anzalone, A., Auditore, L., Cardella, G., Chaatterjee, M., Filippo, E., Geraci, E., Grzeszczuk, A., Guidara, E., Lanzalone, G., Lombardo, I., Nigro, S., Loria, D., Maiolino, C., Minniti, T., Pagano, A., Papa, M., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Rosato, E., Russotto, P., Santoro, S., Trifirò, A., Trimarchi, M., Verde, G., and Vigilante, M.

Subjects
Radioactive ion beams, Elastic scattering, Physics, radioactive ion beam, History, Physics::Medical Physics, elastic scattering, tagging, Coincidence, Computer Science Applications, Education, Nuclear physics, Physics and Astronomy (all), Deuterium, Fragmentation (mass spectrometry), Physics::Accelerator Physics, Heavy ion, Atomic physics, Nuclear Experiment
Abstract

At the Laboratori Nazionali del Sud (LNS) in Catania (Italy), light radioactive ion beams have been produced through the In Flight Fragmentation method, using 18O and 13C at 55 MeV/A as primary beams impinging on a 9Be production target. Elastic scattering angular distributions of 16C+p and 16C+d at 50 MeV/A, 10Be+p at 56 MeV/A and 13B+d at 52 MeV/A systems were measured by using the CHIMERA (Charge Heavy Ion Mass and Energy Resolving Array) multidetector and kinematical coincidence technique. The experimental data are fitted by using the optical model. © Published under licence by IOP Publishing Ltd.

Published
2012

410. FARCOS: a versatile and modular Femtoscopy Array for Correlations and Spectroscopy

Author

G. Cardella, Mariano Vigilante, Lucrezia Auditore, C. Maiolino, G. Politi, Giuseppe Verde, S. Pirrone, D. Loria, G. Lanzalone, E. Geraci, P. Russotto, E. La Guidara, F. Amorini, R. Berjillos, A. Chbihi, M. Trimachi, M. Papa, T. Parsani, F. Rizzo, Chiara Guazzoni, E. De Filippo, F. Riccio, A. Anzalone, S. Gianì, Antonio Trifiro, F. Porto, Andrea Castoldi, L. Francalanza, A. M. Sánchez-Benítez, L. Acosta, C. Boiano, S. Lo Nigro, J. A. Dueñas, E. V. Pagano, P. Zambon, S. Santoro, Ismael Martel, Triestino Minniti, Ivano Lombardo, A. Pagano, Acosta, L., Amorini, F., Anzalone, A., Auditore, L., Boiano, C., Cardella, G., Castoldi, A., Chbihi, A., De Filippo, E., Francalanza, L., Geraci, E., Giani, S., Guazzoni, C., La Guidara, E., Lanzalone, G., Lombardo, I., Lo Nigro, S., Loria, D., Maiolino, C., Martel, I., Minniti, T., Pagano, A., Pagano, E., Papa, M., Parsani, T., Pirrone, S., Politi, G., Porto, F., Riccio, F., Rizzo, F., Russotto, P., Sanchez-Benitez, A., Duenas, J., Berjillos, R., Santoro, S., Trifiro, A., Trimachi, M., Verde, G., Vigilante, M., and Zambon, P.

Subjects
Physics, Radiology, Nuclear Medicine and Imaging, Radiation, Silicon, Calorimeter (particle physics), business.industry, Detector, Attenuation length, chemistry.chemical_element, Scintillator, Photodiode, law.invention, Telescope, Optics, chemistry, law, Nuclear electronics, business, Nuclear and High Energy Physic
Abstract

In the framework of multi-fragmentation experiments the evolution towards two- (or more) particle correlations with stable and radioactive beams calls for the development of a novel detection system featuring high angular and energy resolution and able to reconstruct the particles momentum at high precision. The proposed detection system, named FARCOS (Femtoscopy ARray for COrrelations and Spectroscopy) will be beneficial for different physical cases. To this aim we are building a prototype detection system featuring four telescopes. Each telescope features an active area of 6.4 cm × 6.4 cm and is composed of three detection stages. The first ΔE stage is a Double Sided Silicon Strip Detector (DSSSD), 300 μm thick, featuring 32 × 32 strips. The second ΔE stage is again a DSSSD, 1500 μm thick, featuring 32 × 32 strips. The third stage, acting as calorimeter, is composed by four CsI(Tl) crystals with an active area of 3.2 cm × 3.2 cm and an absorption length of 6 cm forming a 2 × 2 matrix. The scintillators are readout by a Silicon photodiode 300 μm thick. The paper presents the relevant features of FARCOS and the expected performance of the silicon detection layers, with a special focus on the requirements of the frontend electronics for the DSSSD and the qualification of the DSSSD. In addition we report the first results of the preliminary on-beam tests. © 2012 IEEE.

Published
2012

411. Isospin aspects in nuclear reactions involving Ca beams at 25 MeV/nucleon

Author

F. Rizzo, E. De Filippo, E. Geraci, S. Cavallaro, C. Agodi, Ji-Youn Han, A. Di Pietro, L. Grassi, A. Anzalone, G. Lanzalone, I. Lombardo, P. Figuera, Marina Trimarchi, P. Russotto, I. Berceanu, A. Grzeszczuk, Antonio Trifiro, Lucrezia Auditore, N. Le Neindre, Mariano Vigilante, Domenico Santonocito, D. Loria, G. Politi, F. Amorini, G. Cardella, C. Maiolino, A. Pagano, G. Giuliani, R. Alba, E. La Guidara, Amalia Pop, M. Papa, F. Porto, Giuseppe Verde, S. Pirrone, M. B. Chatterjee, 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), Lombardo, Ivano, Agodi, C., Alba, R., Amorini, F., Anzalone, A., Auditore, L., Berceanu, I., Cardella, G., Cavallaro, S., Chatterjee, M. B., De Filippo, E., Di Pietro, A., Figuera, P., Giuliani, G., Geraci, E., Grassi, L., Grzeszczuk, A., Han, J., La Guidara, E., Lanzalone, G., Le Neindre, N., Loria, D., Maiolino, C., Pagano, A., Papa, M., Pirrone, S., Politi, G., Pop, A., Porto, F., Rizzo, F., Russotto, P., Santonocito, D., Trifirò, A., Trimarchi, M., Verde, G., and Vigilante, Mariano

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Light nucleus, Reaction mechanism, Nuclear collision, 010308 nuclear & particles physics, Nuclear Theory, Degrees of freedom (statistics), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Atomic and Molecular Physics, and Optics, Entrance channel, Nuclear physics, Isospin, 0103 physical sciences, Atomic physics, 010306 general physics, Nucleon, Nuclear Experiment
Abstract

Isospin dependence of dynamical and thermodynamical properties observed in reactions 40Ca+ 40,48Ca and 40Ca + 46Ti at 25 MeV/nucleon has been studied. We used the CHIMERA multi-detector array. Strong isospin effects are seen in the isotopic distributions of light nuclei and in the competition between different reaction mechanisms in semi-central collisions. We will show also preliminary results obtained in nuclear collision 48Ca + 48Ca at 25MeV/nucleon, having very high N/Z value in the entrance channel (N/Z = 1. 4). The enhancement of evaporation residue production confirms the strong role played by the N/Z degree of freedom in nuclear dynamics.

Published
2011

412. Light Charged Particle Identification by Means of Digital Pulse Shape Acquisition in the CHIMERACsI(Tl) Detectors at GSI Energies

Author

S. Santoro, F. Riccio, G. Cardella, E. La Guidara, R. Bassini, M. Kiš, L. Acosta, P. Zambon, Chiara Guazzoni, M. Papa, G. Politi, F. Rizzo, Antonio Trifiro, Y. Leifels, L. Grassi, L. Zetta, F. Porto, Giuseppe Verde, A. Pagano, P. Guazzoni, S. Pirrone, E. De Filippo, P. Russotto, F. Amorini, C. Boiano, Ivano Lombardo, Triestino Minniti, W. Trautmann, Acosta, L., Amorini, F., Bassini, R., Boiano, C., Cardella, G., De Filippo, E., Grassi, L., Guazzoni, C., Guazzoni, P., Kiš, M., La Guidara, E., Leifels, Y., Lombardo, I., Minniti, T., Pagano, A., Papa, M., Pirrone, S., Politi, G., Porto, F., Riccio, F., Rizzo, F., Russotto, P., Santoro, S., Trautmann, W., Trifirò, A., Verde, G., Zambon, P., and Zetta, L.

Subjects
Physics, Radiology, Nuclear Medicine and Imaging, Radiation, sezele, Physics::Instrumentation and Detectors, business.industry, Detector, Scintillator, Charged particle, Photodiode, law.invention, Optics, law, Rise time, business, Beam (structure), Digital signal processing, Nuclear and High Energy Physic
Abstract

We report the results obtained by applying digital pulse shape acquisition and digital signal processing to the signals from CsI(Tl) scintillators read out by photodiodes at high incident energy (400 MeV/u). The digitized signals allows the discrimination of light charged particles by computing the Fast and Slow components and the Rise Time of the output pulses of the CsI(Tl). When the energies of the light charged particles exceed those corresponding to their ranges in CsI(Tl), the points related to the punching-through particles gather in the corresponding scatter plots giving rise to a cusp. The punching-through points are used as energy calibration points for the reaction products stopped in the CsI(Tl). The obtained results suggest that at relativistic beam energies it is possible to perform efficient discrimination in charge and mass of light charged particles by using the energy vs. rise time computation. © 2011 IEEE.

Published
2011

413. Light clusters emission in nuclear reactions at 25 MeV/nucleon with different N/Z of entrance channels

Author

R. Alba, Lucrezia Auditore, E. DeFilippo, C. Agodi, G. Lanzalone, Domenico Santonocito, F. Rizzo, Ji-Youn Han, Giuseppe Verde, I. Lombardo, P. Russotto, D. Loria, S. Pirrone, G. Cardella, G. Politi, P. Figuera, G. Giuliani, A. Dipietro, S. Cavallaro, L. Grassi, A. Anzalone, M. Papa, N. Le Neindre, F. Amorini, F. Porto, E. La Guidara, I. Berceanu, C. Maiolino, E. Geraci, Mariano Vigilante, A. Pagano, A. Grzeszczuk, Antonio Trifiro, Amalia Pop, M. B. Chatterjee, Istituto Nazionale di Fisica Nucleare, Sezione di Catania (INFN), Università degli studi di Catania [Catania], 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), Lombardo, Ivano, Agodi, C., Alba, R., Amorini, F., Anzalone, A., Auditore, L., Berceanu, I., Cardella, G., Cavallaro, S., Chatterjee, M. B., Defilippo, E., Dipietro, A., Figuera, P., Geraci, E., Giuliani, G., Grassi, L., Grzeszczuk, A., Han, J., La Guidara, E., Lanzalone, G., Le Neindre, N., Loria, D., Maiolino, C., Pagano, A., Papa, M., Pirrone, S., Politi, G., Pop, A., Porto, F., Rizzo, F., Russotto, P., Santonocito, D., Trifirò, A., Verde, G., and Vigilante, Mariano

Subjects
Nuclear reaction, Physics, Nuclear and High Energy Physics, IDENTIFICATION, 010308 nuclear & particles physics, Nuclear Theory, General Physics and Astronomy, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Collision, 01 natural sciences, 7. Clean energy, Nuclear physics, FUSION, 0103 physical sciences, Neutron, Atomic physics, CHIMERA, FRAGMENTATION, 010306 general physics, Nucleon, Nuclear Experiment, DETECTOR
Abstract

We discuss results on the emission of light clusters in nuclear reactions 40 Ca + 40,48 Ca ,46 Ti at 25 MeV/nucleon. They were detected and identified in mass and charge by means of the CHIMERA 4π array. Inclusive emission at forward angles shows that isotopic yields of Li and Be nuclei are related to the N/Z values of entrance channels. Moreover, structure effects and even-odd staggering in charge distributions of intermediate mass fragments emitted at forward angles will be shown. In agreement with previous experimental findings, odd-even effects are clearly visible in N ≈ Z systems, while are less pronounced in the neutron rich collision 40 Ca +48 Ca . These experimental findings are compared to preliminary data obtained in 40 Ca +48 Ca . collision at 25 MeV/nucleon.

Published
2010

414. Exploring isospin effects on the level density and the density dependence of the symmetry energy

Author

Marini P., Borderie B., Chbihi A., Le Neindre N., Rivet M.-F., Wieleczko J. P., Zorić, Maja, Frankland J.D., Pagano A., Pirrone S., Rivet M-F., and Rizzo F.

Subjects
Nuclear Theory, heavy-ion reactions, isospin, symmetry energy, intermediate energies, Nuclear Experiment
Abstract

Two experiments coupling the 4pi multidetector INDRA and the VAMOS spectrometer have been performed to explore both the isospin dependence of the level density and the density dependence of the symmetry term of the nuclear equation of state. Preliminary results show an isospin dependence of the Ar+Ni fusion-evaporation cross section. The isotopic resolution, which will allow to constrain the symmetry energy, has been achieved.

Published
2010

415. In-medium NN cross section below 100A MeV determined from the early dynamical reaction phase

Author

Basrak, Zoran, Zorić, Maja, Eudes P., Sebille, F., Frankland J.D., Pagano A., Pirrone S., Rivet M-F., and Rizzo F.

Subjects
heavy-ion reactions, NN scattering in-medium, medium modifications, semi-classical simulations, intermediate energies, in-medium modifications, Nuclear Theory, Physics::Accelerator Physics, Nuclear Experiment
Abstract

Implications of the in-medium modifications of nucleon-nucleon (NN) cross section on a number of observables have been studied below 100/4 MeV with the semi-classical Landau-Vlasov model and the momentum-dependent Gogny interaction. Emphasis is put on the early dynamical reaction phase for both a symmetric Ni+Ni and an asymmetric Ar+Ni reactions. Simulations were carried out at three energies for each system studied by covering the full span of impact parameter range and by varying the NN cross section from a half to twice the value of the free nucleon-nucleon scattering cross section.

Published
2009

416. The Early-Reaction-Phase Dynamics of Heavy-Ion Collisions below 100 MeV/u

Author

Basrak, Zoran, Novosel, Ivan, Eudes, Ph., Haddad, F., Sebille, F., Bougault, R., Pagano, A., Pirrone, S., Rivet, M.-F., and Rozzo, F.

Subjects
heavy-ion collisions, intermediate energies, semiclassical simulations, Nuclear Experiment
Abstract

An extensive study of the compact dynamical phase of heavy-ion reactions has been carried out within the framework of a semiclassical transport approach. Several systems having different total mass and asymmetry have been studied over a full range of impact parameter and a wide range of incident energies below 100 MeV/u. Emphases has been payed to the study of features of the maxima of compression and heat, the main energy components during the first instances of a collision. Similarly to the properties of the copious early-reaction phase dynamical emission component, the values of these energy maxima are proportional to the overlapping volume of the collision partners (participant matter) and, thus, display a strong dependence on reaction geometry. In head-on collisions these energy maxima are proportional to the available center-of-mass energy.

Published
2006

417. Quasifission and fusion-fission processes in the reactions 78Kr+40Ca and 86Kr+48Ca at 10 MeV/nucleon.

Author

Kalandarov, Sh. A., Lacroix, D., Adamian, G. G., Antonenko, N. V., Wieleczko, J. P., Pirrone, S., and Politi, G.

Subjects
*PHYSICS periodicals, *DEEP inelastic collisions, *PARTICLES (Nuclear physics), *KRYPTON
Abstract

Within the dinuclear system model the charge, mass, and isotopic distributions of the products in the reactions 78Kr+40Ca and 86Kr+48Ca are predicted at bombarding energy 10 MeV/nucleon. The heavy-ion phase-space exploration code is applied to take into consideration the pre-equilibrium emission of light particles. The competition is treated between complete fusion followed by the decay of compound nucleus and quasifission channels. The possible explanation of the odd-even staggering in the yield of the final reaction products at high excitation energies is discussed. [ABSTRACT FROM AUTHOR]

Published
2016
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418. New experimental investigation of the structure of 10Be and 16C by means of intermediate-energy sequential breakup.

Author

Dell'Aquila, D., Lombardo, I., Acosta, L., Andolina, R., Auditore, L., Cardella, G., Chatterjiee, M. B., De Filippo, E., Francalanza, L., Gnoffo, B., Lanzalone, G., Pagano, A., Pagano, E. V., Papa, M., Pirrone, S., Politi, G., Porto, F., Quattrocchi, L., Rizzo, F., and Rosato, E.

Subjects
*PHYSICS periodicals, *BERYLLIUM, *MOLECULAR structure, *ANGULAR correlations (Nuclear physics)
Abstract

10Be and 16C spectroscopy has been investigated by analyzing their breakup events on CH2 and CD2 targets. Breakup fragments have been detected by means of the CHIMERA detector. In particular, we investigated cluster decays of 10Be in 4He+6He and of 16C in 6He+10Be and 4He+6He+6He. From the relative energy analysis of breakup fragments, we investigate the spectroscopy of excited states of projectile nuclei. In the 10Be case we observe known states at 9.51, 10.16, 10.6, and 11.8 MeV. Further, we suggest the existence of a new state at 13.5 MeV, possibly 6+ as indicated from angular correlation analysis. The relative energy (Erel+Eth) spectrum of 16C, reconstructed starting from 6He+10Be correlations, shows a peak at about 20.6 MeV, probably related to the existence of an high-lying excited state. Non-vanishing yields are also seen in the triple coincidences 4He+6He+6He. [ABSTRACT FROM AUTHOR]

Published
2016
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419. A new monolithic silicon detector telescope with bidimensional sensitivity for imaging applications

Author

Amorini, F., Sipala, V., Cardella, G., Auditore, L., Boiano, C., Carbone, B., Castoldi, A., Di Pietro, A., Fallica, G., Figuera, P., Finocchiaro, P., Grassi, L., La Guidara, E., Guazzoni, C., Guazzoni, P., Lombardo, I., Loria, D., Pappalardo, A., Pirrone, S., and Randazzo, N.

Subjects
*TELESCOPES, *SILICON diodes, *PARTICLES (Nuclear physics), *IMAGING systems, *NUCLEAR physics
Abstract

Abstract: New monolithic silicon telescopes act as high performance and versatile devices to detect and identify charged particles. Their features allow their use also as position sensitive detectors. [Copyright &y& Elsevier]

Published
2010
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