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29 results on '"Grassi, L."'

1. Study of key resonances in the 30P(p,γ)31S reaction in classical novae

Author

Meyer A., de Séréville N., Hammache F., Adsley P., Assié M., Beaumel D., Delafosse C., Flavigny F., Georgiadou A., Gottardo A., Grassi L., Guillot J., Id Barkach T., MacCormick M., Matea I., Olivier L., Perrot L., Portail C., Stefan I., Parikh A., Coc A., Kiener J., Tatischeff V., Laird A. M., Fox S. P., Hubbard N., Riley J., De Oliveira F., Bastin B., Béroff K., Sánchez Benítez Á. M., Alellara A., Assunção M., Guimaraes V., Oulebsir N., and D’Agata G.

Subjects
Physics, QC1-999
Abstract

Among reactions with strong impact on classical novae model predictions, 30P(p,γ)31S is one of the few remained that are worthy to be measured accurately, because of their rate uncertainty, as like as 18F(p,α)15O and 25Al(pγ)26Si. To reduce the nuclear uncertainties associated to this reaction, we performed an experiment at ALTO facility of Orsay using the 31P(3He,t)31S reaction to populate 31S excited states of astrophysical interest and detect in coincidence the protons coming from the decay of the populated states in order to extract the proton branching ratios. After a presentation of the astrophysical context of this work, the current situation of the 30P(p,γ)31S reaction rate will be discussed. Then the experiment set-up of this work and the analysis of the single events will be presented.

Published
2018
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2. The symmetry energy at suprasaturation density and the ASY-EOS experiment at GSI

Author

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
Physics, QC1-999
Abstract

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
2017
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3. Nuclear reactions in AGB nucleosynthesis: the 19F(α, p)22Ne at energies of astrophysical relevance

Author

D’Agata G., Pizzone R. G., La Cognata M., Indelicato I., Spitaleri C., Blagus S., Cherubini S., Figuera P., Grassi L., Guardo G. L., Gulino M., Hayakawa S., Kshetri R., Lamia L., Lattuada M., Mijatović T., Milin M., Miljanić Ð., Prepolec L., Rapisarda G. G., Romano S., Sergi M. L., Soić N., Tokić V., Tumino A., and Uroić M.

Subjects
Physics, QC1-999
Abstract

The abundance of 19F in the universe is strictly related to standard and extra-mixing processes taking place inside AGB-stars, that are considered to be the most important sites for its production. Nevertheless the way in which it is destroyed is far from being well understood. For this reason we studied the 19F(α,p)22Ne reaction, that is supposed to be the main destruction channel in the Helium-rich part of the star. In this experiment, the reaction has been studied in the energy range of relevance for astrophysics (0÷1 MeV) via the Trojan Horse Method (THM), using the three-body reaction 6Li(19F,p22Ne)d.

Published
2017
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4. The ASY-EOS Experiment at GSI

Author

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., Łukasik 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., 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., 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., and Zoric M.

Subjects
Physics, QC1-999
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. 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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5. Effects of the interstrip gap on the efficiency and response of Double Sided Silicon Strip Detectors

Author

Torresi D., Forneris J., Grassi L., Acosta L., Di Pietro A., Figuera P., Fisichella M., Grilj V., Jakic M., Lattuada M., Mijatovic T., Milin M., Prepolec L., Skukan N., Soic N., Stanko D., Tokic V., Uroic M., and Zadro M.

Subjects
Physics, QC1-999
Abstract

In this work the effects of the segmentation of the electrodes of Double Sided Silicon Strip Detectors (DSSSDs) are investigated. In order to characterize the response of the DSSSDs we perform a first experiment by using tandem beams of different energies directly sent on the detector and a second experiment by mean of a proton microbeam. Results show that the effective width of the inter-strip region and the efficiency for full energy detection, varies with both detected energy and bias voltage. The experimental results are qualitatively reproduced by a simplified model based on the Shockley-Ramo-Gunn framework.

Published
2016
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6. Status and perspectives of fragmentation beams at LNS with CHIMERA detector

Author

Cardella G., Acosta L., Amorini F., Auditore L., Berceanu I., Chatterjiee M.B., De Filippo E., Francalanza L., Grassi L., La Guidara E., Lanzalone G., Lombardo I., Minniti T., Pagano A., Pagano E.V., Papa M., Pirrone S., Politi G., Quattrocchi L., Rizzo F., Rosato E., Russotto P., Trifirò A., Trimarchi M., Verde G., and Vigilante M.

Subjects
Physics, QC1-999
Abstract

Relatively large yields of various exotic beams produced through in-flight fragmentation are available at LNS. Using the CHIMERA detector, we performed various experiments to study elastic and inelastic scattering, transfer, break-up, and reaction dynamics with targets from proton and deuteron to carbon and heavier. For reactions with relatively light systems we used the kinematical coincidence method to extract high resolution angular distributions of binary reactions from the measured light particle energy spectra. We also used the CsI detectors of CHIMERA to detect gamma rays emitted in the reactions. Some of most recent results are presented together with future perspectives with the coupling of CHIMERA with FARCOS array.

Published
2015
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7. The ASY-EOS experiment at GSI: Constraining the symmetry energy at supra-saturation densities

Author

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., Łukasik 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., 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., 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., and Zoric M.

Subjects
Physics, QC1-999
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. In the ASY-EOS experiment at the GSI laboratory, flows of neutrons and light charged particles were measured for 197Au+197Au, 96Zr+96Zr and 96Ru+96Ru collisions at 400 MeV/nucleon with the Large Area Neutron Detector LAND as part of a setup with several additional detection systems used for the event characterization. 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
2015
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8. Polar-side emission of heavy IMFs in 197Au + 197Au collisions at 23A MeV

Author

Cap T., Siwek-Wilczyńska K., Skwira-Chalot I., Wilczyński J., Amorini F., Auditore L., Cardella G., De Filippo E., Geraci E., Grassi L., Grzeszczuk A., La Guidara E., Han J., Kozik T., Lanzalone G., Lombardo I., Najman R., Nicolis N. G., Pagano A., Papa M., Piasecki E., Pirrone S., Płaneta R., Politi G., Rizzo F., Russotto P., Trifirò A., Trimarchi M., Verde G., and Zipper W.

Subjects
Physics, QC1-999
Published
2015
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9. Probing the symmetry energy at low density using observable from neck fragmentation

Author

De Filippo E., Acosta L., Agodi C., Amorini F., Auditore L., Baran V., Berceanu I., Cap T., Cardella G., Colonna M., Francalanza L., Geraci E., Gianì R., Grassi L., Grzeszczuk A., Guazzoni P., Han J., La Guidara E., Lanzalone G., Lombardo I., Maiolino C., Minniti T., Pagano A., Pagano E.V., Papa M., Piasecki E., Płaneta R., Pirrone S., Politi G., Pop A., Porto F., Quattrocchi L., Rizzo F., Rosato E., Russotto P., Siwek-Wilczyńska K., Skwira-Chalot I, Trifirò A., Trimarchi M., Verde G., Vigilante M., Wilczyński J., and Zetta L.

Subjects
Physics, QC1-999
Abstract

Semi-peripheral collisions of 64Ni + 124Sn 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
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10. The ASY-EOS experiment at GSI: investigating symmetry energy at supra-saturation densities

Author

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., Łukasik J., Marini P., Pawłowski P., Santoro S., Trautmann W., Veselsky M., 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., Simon H., Skwirczynska I., Sosin Z., Stuhl L., Trifirò A., Trimarchi M., Tsang M.B., Verde G., Vigilante M., Wieloch A., Wigg P., Wolter H.H., Wu P., Yennello S., Zambon P., Zetta L., and Zoric M.

Subjects
Physics, QC1-999
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
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11. ASY-EOS experiment at GSI

Author

Kezzar K., Isobe T., Introzzi R., Heilborn L., Heil M., Guazzoni P., Guazzoni C., Greco V., Grassi L., Geraci E., Gašsparić A., Le Fevre A., Famiano M., Di Toro M., De Filippo E., Czech B., Colonna M., Chbihi A., Chartier M., Chajecki Z., Cavallaro S., Cammarata P., Cardella G., Budzanowski A., Brzychczyk J., Boretzky K., Boisjoli C., Boiano C., Benlliure J., Basrak Z., Baran V., Ayyad Y., Aumann T., Auditore L., Amorini F., Al-Homaidhi S., Al-Garawi M., Al-Ajlan A., Adamczyk M., Acosta L., Russotto P., 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.G., 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.H., Wu P., Yennello S., Zambon P., Zetta L., and Zoric M.

Subjects
Physics, QC1-999
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.

Published
2012
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12. Use of fragmentation beams at LNS with CHIMERA detector

Author

Gianí R., Francalanza L., DeFilippo E., Chatterjiee M. B., Buscemi M., Berceanu I., Auditore L., Anzalone A., Amorini F., Agodi C., Acosta L., Cardella G., Grassi L., La Guidara E., Lanzalone G., Lombardo I., Loria D., Minniti T., Pagano A., Pagano E. V., Papa M., Pirrone S., Politi G., Porto F., Rizzo F., Rosato E., Russotto P., Santoro S., Trifiró A., Trimarchi M., Verde G., and Vigilante M.

Subjects
Physics, QC1-999
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.

Published
2012
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13. Global characteristics of 197Au + 197Au collisions at 23 AMeV

Author

Bubak A., Auditore L., Amorini F., Sochocka A., Płaneta R., Najman R., Cap T., Cardella G., De Filippo E., Geraci E., Grassi L., Grzeszczuk A., La Guidara E., Han J., Loria D., Kowalski S., Kozik T., Lanzalone G., Lombardo I., Majka Z., Nicolis N. G., Pagano A., Piasecki E., Pirrone S., Politi G., Rizzo F., Russotto P., Siwek-Wilczyéska K., Skwira-Chalot I., Trifiró A., Trimarchi M., Wilczyński J., Verde G., and Zipper W.

Subjects
Physics, QC1-999
Abstract

We present the current status of nuclear dynamics studies performed by the BREAKUP group with the 4π CHIMERA array, for the system 197Au + 197Au at 23 AMeV.

Published
2012
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14. N/Z effects on 40,48Ca+40,48Ca reactions at 25 MeV/nucleon

Author

Cardella G., Buscemi M., Berceanu I., Auditore L., Anzalone A., Amorini F., Agodi C., Acosta L., Lombardo I., Cavallaro S., Chatterjee M. B., DeFilippo E., Giuliani G., Geraci E., Grassi L., Han J., LaGuidara E., Lanzalone G., 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
Physics, QC1-999
Abstract

Effects related to the neutron to proton ratio (N/Z) degree of freedom in 40,48Ca+40,48Ca reactions at 25 MeV/nucleon have been investigated. Isotopic effect and even-odd staggering characterize the emission of light fragments at forward angles. The study of isobaric ratio 7Li/7Be for quasi-projectile source in semi-peripheral event of reactions allows moreover to investigate isospin diffusion effects in heavy ion collisions.

Published
2012
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15. N/Z effects on evaporation residue emission near fragmentation threshold

Author

Papa M., Pagano A., Minniti T., Maiolino C., Loria D., Lanzalone G., LaGuidara E., Han J., Grassi L., Geraci E., Giuliani G., DeFilippo E., Chatterjee M.B., Cavallaro S., Cardella G., Berceanu I., Auditore L., Anzalone A., Amorini F., Agodi C., Lombardo I., Acosta L., Pirrone S., Politi G., Porto F., Rizzo F., Russotto P., Santoro S., Trifirò A., Trimarchi M., Verde G., and Vigilante M.

Subjects
Physics, QC1-999
Abstract

We will discuss results concerning the fate of hot nuclear systems populated in 40,48Ca+40,48Ca reactions at 25 MeV/nucleon. Due to the complexity of events, we used the Chimera 4π device as detection system. By selecting central events of reaction, we found that the interplay between binary-like and evaporation residue emissions is strongly sensitive on the N/Z of the entrance channels. In particular, evaporation residue emission increases at increasing the neutron content of colliding system. By comparing or data with CoMD-II model calculations, we can extract information about the density depend part of Symmetry Potential in the Nuclear Equation of State at near-saturation densities.

Published
2011
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16. Nuclear reactions in AGB nucleosynthesis: the19F(α, p)22Ne at energies of astrophysical relevance

Author

D’Agata, G., primary, Pizzone, R. G., additional, La Cognata, M., additional, Indelicato, I., additional, Spitaleri, C., additional, Blagus, S., additional, Cherubini, S., additional, Figuera, P., additional, Grassi, L., additional, Guardo, G. L., additional, Gulino, M., additional, Hayakawa, S., additional, Kshetri, R., additional, Lamia, L., additional, Lattuada, M., additional, Mijatović, T., additional, Milin, M., additional, Miljanić, Ð., additional, Prepolec, L., additional, Rapisarda, G. G., additional, Romano, S., additional, Sergi, M. L., additional, Soić, N., additional, Tokić, V., additional, Tumino, A., additional, and Uroić, M., additional

Published
2017
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17. Nuclear reactions in AGB nucleosynthesis: the 19F(α, p)22Ne at energies of astrophysical relevance.

Author

Pizzone, R. G., La Cognata, M., Indelicato, I., Figuera, P., Guardo, G. L., Lamia, L., Rapisarda, G. G., Sergi, M. L., D'Agata, G., Spitaleri, C., Cherubini, S., Lattuada, M., Romano, S., Hayakawa, S., Kshetri, R., Tumino, A., Blagus, S., Grassi, L., Mijatović, T., and Miljanić, Ð.

Subjects
ASYMPTOTIC giant branch stars, NUCLEOSYNTHESIS, NUCLEAR reactions, FLUORINE isotopes, NEON isotopes, ASTROPHYSICS, THREE-body problem
Abstract

The abundance of 19F in the universe is strictly related to standard and extra-mixing processes taking place inside AGB-stars, that are considered to be the most important sites for its production. Nevertheless the way in which it is destroyed is far from being well understood. For this reason we studied the 19F(α,p)22Ne reaction, that is supposed to be the main destruction channel in the Helium-rich part of the star. In this experiment, the reaction has been studied in the energy range of relevance for astrophysics (0÷1 MeV) via the Trojan Horse Method (THM), using the three-body reaction 6Li(19F,p22Ne)d. [ABSTRACT FROM AUTHOR]

Published
2017
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18. Polar-side emission of heavy IMFs in197Au +197Au collisions at 23A MeV

Author

Cap, T., primary, Siwek-Wilczyńska, K., additional, Skwira-Chalot, I., additional, Wilczyński, J., additional, Amorini, F., additional, Auditore, L., additional, Cardella, G., additional, De Filippo, E., additional, Geraci, E., additional, Grassi, L., additional, Grzeszczuk, A., additional, La Guidara, E., additional, Han, J., additional, Kozik, T., additional, Lanzalone, G., additional, Lombardo, I., additional, Najman, R., additional, Nicolis, N. G., additional, Pagano, A., additional, Papa, M., additional, Piasecki, E., additional, Pirrone, S., additional, Płaneta, R., additional, Politi, G., additional, Rizzo, F., additional, Russotto, P., additional, Trifirò, A., additional, Trimarchi, M., additional, Verde, G., additional, and Zipper, W., additional

Published
2015
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19. ASY-EOS experiment at GSI

Author

Russotto, P., primary, Acosta, L., additional, Adamczyk, M., additional, Al-Ajlan, A., additional, Al-Garawi, M., additional, Al-Homaidhi, S., additional, Amorini, F., additional, Auditore, L., additional, Aumann, T., additional, Ayyad, Y., additional, Baran, V., additional, Basrak, Z., additional, Benlliure, J., additional, Boiano, C., additional, Boisjoli, C., additional, Boretzky, K., additional, Brzychczyk, J., additional, Budzanowski, A., additional, Cardella, G., additional, Cammarata, P., additional, Cavallaro, S., additional, Chajecki, Z., additional, Chartier, M., additional, Chbihi, A., additional, Colonna, M., additional, Czech, B., additional, De Filippo, E., additional, Di Toro, M., additional, Famiano, M., additional, Le Fevre, A., additional, Gašsparić, A., additional, Geraci, E., additional, Grassi, L., additional, Greco, V., additional, Guazzoni, C., additional, Guazzoni, P., additional, Heil, M., additional, Heilborn, L., additional, Introzzi, R., additional, Isobe, T., additional, Kezzar, K., additional, Kiš, M., additional, Kupny, S., additional, Kurz, N., additional, La Guidara, E., additional, Lanzalone, G., additional, Lasko, P., additional, Leifels, Y., additional, Lemmon, R., additional, Li, Q., additional, Lombardo, I., additional, Loria, D., additional, Lukasik, J., additional, Lynch, W.G., additional, Marini, P., additional, Matthews, Z., additional, May, L., additional, Minniti, T., additional, Mostazo, M., additional, Pagano, A., additional, Papa, M., additional, Pawlowski, P., additional, Petrovici, M., additional, Pirrone, S., additional, Politi, G., additional, Porto, F., additional, Reifarth, R., additional, Reisdorf, W., additional, Riccio, F., additional, Rizzo, F., additional, Rosato, E., additional, Rossi, D., additional, Santoro, S., additional, Simon, H., additional, Skwirczynska, I., additional, Sosin, Z., additional, Trautmann, W., additional, Trifirò, A., additional, Trimarchi, M., additional, Tsang, B., additional, Veselsky, M., additional, Verde, G., additional, Vigilante, M., additional, Wieloch, A., additional, Wigg, P., additional, Wilczynski, J., additional, Wolter, H.H., additional, Wu, P., additional, Yennello, S., additional, Zambon, P., additional, Zetta, L., additional, and Zoric, M., additional

Published
2012
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20. Use of fragmentation beams at LNS with CHIMERA detector

Author

Cardella, G., primary, Acosta, L., additional, Agodi, C., additional, Amorini, F., additional, Anzalone, A., additional, Auditore, L., additional, Berceanu, I., additional, Buscemi, M., additional, Chatterjiee, M. B., additional, DeFilippo, E., additional, Francalanza, L., additional, Gianí, R., additional, Grassi, L., additional, La Guidara, E., additional, Lanzalone, G., additional, Lombardo, I., additional, Loria, D., additional, Minniti, T., additional, Pagano, A., additional, Pagano, E. V., additional, Papa, M., additional, Pirrone, S., additional, Politi, G., additional, Porto, F., additional, Rizzo, F., additional, Rosato, E., additional, Russotto, P., additional, Santoro, S., additional, Trifiró, A., additional, Trimarchi, M., additional, Verde, G., additional, and Vigilante, M., additional

Published
2012
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21. N/Z effects on40,48Ca+40,48Ca reactions at 25 MeV/nucleon

Author

Lombardo, I., primary, Acosta, L., additional, Agodi, C., additional, Amorini, F., additional, Anzalone, A., additional, Auditore, L., additional, Berceanu, I., additional, Buscemi, M., additional, Cardella, G., additional, Cavallaro, S., additional, Chatterjee, M. B., additional, DeFilippo, E., additional, Giuliani, G., additional, Geraci, E., additional, Grassi, L., additional, Han, J., additional, LaGuidara, E., additional, Lanzalone, G., additional, Loria, D., additional, Maiolino, C., additional, Minniti, T., additional, Pagano, A., additional, Papa, M., additional, Pirrone, S., additional, Politi, G., additional, Porto, F., additional, Rizzo, F., additional, Rosato, E., additional, Russotto, P., additional, Santoro, S., additional, Trifirò, A., additional, Trimarchi, M., additional, Verde, G., additional, and Vigilante, M., additional

Published
2012
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22. Global characteristics of197Au +197Au collisions at 23 AMeV

Author

Najman, R., primary, Płaneta, R., additional, Sochocka, A., additional, Amorini, F., additional, Auditore, L., additional, Bubak, A., additional, Cap, T., additional, Cardella, G., additional, De Filippo, E., additional, Geraci, E., additional, Grassi, L., additional, Grzeszczuk, A., additional, La Guidara, E., additional, Han, J., additional, Loria, D., additional, Kowalski, S., additional, Kozik, T., additional, Lanzalone, G., additional, Lombardo, I., additional, Majka, Z., additional, Nicolis, N. G., additional, Pagano, A., additional, Piasecki, E., additional, Pirrone, S., additional, Politi, G., additional, Rizzo, F., additional, Russotto, P., additional, Siwek-Wilczyéska, K., additional, Skwira-Chalot, I., additional, Trifiró, A., additional, Trimarchi, M., additional, Wilczyński, J., additional, Verde, G., additional, and Zipper, W., additional

Published
2012
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23. N/Z effects on evaporation residue emission near fragmentation threshold

Author

Lombardo, I., primary, Acosta, L., additional, Agodi, C., additional, Amorini, F., additional, Anzalone, A., additional, Auditore, L., additional, Berceanu, I., additional, Cardella, G., additional, Cavallaro, S., additional, Chatterjee, M.B., additional, DeFilippo, E., additional, Giuliani, G., additional, Geraci, E., additional, Grassi, L., additional, Han, J., additional, LaGuidara, E., additional, Lanzalone, G., additional, Loria, D., additional, Maiolino, C., additional, Minniti, T., additional, Pagano, A., additional, Papa, M., additional, Pirrone, S., additional, Politi, G., additional, Porto, F., additional, Rizzo, F., additional, Russotto, P., additional, Santoro, S., additional, Trifirò, A., additional, Trimarchi, M., additional, Verde, G., additional, and Vigilante, M., additional

Published
2011
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24. Global characteristics of 197Au + 197Au collisions at 23 AMeV.

Author

NAJMAN, R., PŁANETA, R., SOCHOCKA, A., AMORINI, F., AUDITORE, L., BUBAK, A., CAP, T., CARDELLA, G., DEFILIPPO, E., GERACI, E., GRASSI, L., GRZESZCZUK, A., LAGUIDARA, E., HAN, J., LORIA, D., KOWALSKI, S., KOZIK, T., LANZALONE, G., LOMBARDO, I., and MAJKA, Z.

Subjects
COLLISIONS (Nuclear physics), DYNAMICS, PARTICLES (Nuclear physics), COLLISIONS (Physics), NUCLEAR physics
Abstract

We present the current status of nuclear dynamics studies performed by the BREAKUP group with the 4π CHIMERA array, for the system 197Au + 197Au at 23 AMeV. [ABSTRACT FROM AUTHOR]

Published
2012
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25. N/Z effects on 40,48Ca+40,48Ca reactions at 25 MeV/nucleon.

Author

LOMBARDO, I., ACOSTA, L., AGODI, C., AMORINI, F., ANZALONE, A., AUDITORE, L., BERCEANU, I., BUSCEMI, M., CARDELLA, G., CAVALLARO, S., CHATTERJEE, M. B., DEFILIPPO, E., GIULIANI, G., GERACI, E., GRASSI, L., HAN, J., LAGUIDARA, E., LANZALONE, G., LORIA, D., and MAIOLINO, C.

Subjects
PARTICLES (Nuclear physics), PROTONS, NUCLEAR physics, HEAVY ion collisions, COLLISIONS (Nuclear physics)
Abstract

Effects related to the neutron to proton ratio (N/Z) degree of freedom in 40,48Ca+40,48Ca reactions at 25 MeV/nucleon have been investigated. Isotopic effect and even-odd staggering characterize the emission of light fragments at forward angles. The study of isobaric ratio 7Li/7Be for quasi-projectile source in semi-peripheral event of reactions allows moreover to investigate isospin diffusion effects in heavy ion collisions. [ABSTRACT FROM AUTHOR]

Published
2012
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26. Polar-side emission of heavy IMFs in 197Au + 197Au collisions at 23A MeV.

Author

CAP, T., SIWEK-WILCZYŃSKA, K., SKWIRA-CHALOT, I., WILCZYŃSKI, J., AMORINI, F., AUDITORE, L., CARDELLA, G., DE FILIPPO, E., GERACI, E., GRASSI, L., GRZESZCZUK, A., LA GUIDARA, E., HAN, J., KOZIK, T., LANZALONE, G., LOMBARDO, I., NAJMAN, R., NICOLIS, N. G., PAGANO, A., and PAPA, M.

Subjects
COLLISIONS (Physics), COULOMB'S law, GEOMETRY, CHEMICAL reactions, HEAVY ions
Abstract

The article discusses the analysis of the collisions of symmetric systems which failed to fuse due to the Coulomb repulsion. Topics discussed include the use of geometry to detect and identify the reaction of products in the arranged Charged Heavy Ion Mass and Energy Resolving Array (CHIMERA), the addition of fragments in the ternary reactions, and the prompt emission features of the intermediate-mass fragment.

Published
2015
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27. Transfer reactions on light exotic nuclei studied with CHIMERA detector at LNS

Author

G. Cardella, L. Acosta, F. Amorini, L. Auditore, I. Berceanu, M. Buscemi, M. B. Chatterjiee, E. DeFilippo, L. Francalanza, R. Gianì, L. Grassi, E. La Guidara, G. Lanzalone, D. Loria, T. Minniti, A. Pagano, E. V. Pagano, M. Papa, S. Pirrone, G. Politi, A. Pop, F. Porto, F. Rizzo, P. Russotto, S. Santoro, A. Trifiró, M. Trimarchi, G. Verde, 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, G., Cardella, L., Acosta, F., Amorini, 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, A., Pop, F., Porto, F., Rizzo, Rosato, Elio, P., Russotto, S., Santoro, A., Trifiró, M., Trimarchi, G., Verde, Vigilante, Mariano, Cardella, G., Acosta, L., Amorini, F., Auditore, L., Berceanu, I., Chatterjiee, M., Defilippo, E., Francalanza, L., Gianì, R., Grassi, L., La Guidara, E., Lanzalone, G., Lombardo, I., Loria, D., Minniti, T., Pagano, A., Pagano, E., Papa, M., Pirrone, S., Politi, G., Pop, A., Porto, F., Rizzo, F., Rosato, E., Russotto, P., Santoro, S., Trifirò, A., Trimarchi, M., Verde, G., and Vigilante, M.

Subjects
Physics, Elastic scattering, education.field_of_study, QC1-999, Population, Resolution (electron density), Nuclear reaction, Coincidence, Spectral line, Physics and Astronomy (all), Transfer reactions, Excited state, Center of mass, Atomic physics, education, Beam (structure)
Abstract

The kinematical coincidence method is used to extract angular distribution of elastic scattering and transfer reactions. The detected light particle energy spectra are used to extract the angular distribution with around 1° resolution in the Center of Mass (CM) system. Examples with 10Be beam are presented. In the case of proton scattering, γ-ray coincidences are used to discriminate excited levels population from elastic scattering. © Owned by the authors, published by EDP Sciences, 2014.

Published
2014

28. 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

29. N/Z effects on40,48Ca+40,48Ca reactions at 25 MeV/nucleon

Author

G. Giuliani, P. Russotto, Elio Rosato, M. B. Chatterjee, E. LaGuidara, C. Agodi, Ji-Youn Han, A. Anzalone, Triestino Minniti, L. Acosta, E. Geraci, E. DeFilippo, F. Porto, S. Cavallaro, Giuseppe Verde, A. Pagano, F. Rizzo, S. Pirrone, Mariano Vigilante, L. Grassi, I. Berceanu, C. Maiolino, G. Lanzalone, Ivano Lombardo, Antonio Trifiro, D. Loria, M. Trimarchi, Michele Papa, F. Amorini, G. Cardella, Lucrezia Auditore, G. Politi, S. Santoro, M. Buscemi, Lombardo, I., Acosta, L., Agodi, C., Amorini, F., Anzalone, A., Auditore, L., Berceanu, I., Buscemi, M., Cardella, G., Cavallaro, S., Chatterjee, M., Defilippo, E., Giuliani, G., Geraci, E., Grassi, L., Han, J., Laguidara, E., Lanzalone, G., 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., Vigilante, M., J.D.Frankland, A.Pagano, S.Pirrone, m.F.Rivet, F.Rizzo, Lombardo, Ivano, L., Acosta, C., Agodi, F., Amorini, A., Anzalone, L., Auditore, I., Berceanu, M., Buscemi, G., Cardella, S., Cavallaro, M. B., Chatterjee, E., Defilippo, G., Giuliani, E., Geraci, L., Grassi, J., Han, E., Laguidara, G., Lanzalone, D., Loria, C., Maiolino, T., Minniti, A., Pagano, M., Papa, S., Pirrone, G., Politi, F., Porto, F., Rizzo, Rosato, Elio, P., Russotto, S., Santoro, A., Trifirò, M., Trimarchi, G., Verde, and Vigilante, Mariano

Subjects
Physics, Proton, QC1-999, Nuclear Theory, nuclear reaction, Nuclear physics, Physics and Astronomy (all), Isospin, isospin effect, Isobaric process, even-odd staggering, Neutron, Heavy ion, Statistical physics, Diffusion (business), Nuclear Experiment, Nucleon, Event (particle physics)
Abstract

Effects related to the neutron to proton ratio (N/Z) degree of freedom in 40, 48Ca+40, 48Ca reactions at 25 MeV/nucleon have been investigated. Isotopic effect and even-odd staggering characterize the emission of light fragments at forward angles. The study of isobaric ratio 7Li/7Be for quasi-projectile source in semi-peripheral event of reactions allows moreover to investigate isospin diffusion effects in heavy ion collisions. © Owned by the authors, 2012.

Published
2012

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