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1. Indirect Study of the 16O+16O Fusion Reaction Toward Stellar Energies by the Trojan Horse Method

Author

Hayakawa S., Spitaleri C., Burtebayev N., Aimaganbetov A., Figuera P., Fisichella M., Guardo G.L., Igamov S., Indelicato I., Kiss G., Kliczewski S., La Cognata M., Lamia L., Lattuada M., Piasecki E., Rapisarda G.G., Romano S., Sakuta S.B., Siudak R., Trzcińska A., Tumino A., and Urkinbayev A.

Subjects
Physics, QC1-999
Abstract

The 16O+16O fusion reaction is important in terms of the explosive oxygen burning process during late evolution stage of massive stars as well as understanding of the mechanism of low-energy heavy-ion fusion reactions. We aim to determine the excitation function for the most major exit channels, α+28Si and p+31P, toward stellar energies indirectly by the Trojan Horse Method via the 16O(20Ne, α28Si)α and 16O(20Ne, p31P)α three-body reactions. We report preliminary results involving reaction identification, and determination of the momentum distribution of α-16O intercluster motion in the projectile 20Ne nucleus.

Published
2016
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2. Isospin influence on the decay modes of the systems produced in the 78,86Kr +40,48Ca reactions at 10 AMeV

Author

Gnoffo B., Pirrone S., Politi G., La Commara M., Wieleczko J.P., De Filippo E., Russotto P., Trimarchi M., Vigilante M., Ademard G., Amorini F., Auditore L., Beck C., Bercenau I., Bonnet E., Borderie B., Cardella G., Chibihi A., Colonna M., D’Onofrio A., Frankland J.D., Geraci E., Henry E., La Guidara E., Lanzalone G., Lautesse P., Lebhertz D., LeNeidre N., Lombardo I., Mazurek K., Norella S., Pagano A., Pagano E.V., Papa M., Piasecki E., Porto F., Quattrocchi L., Quinlann M., Rizzo F., Shoroeder U., Spadaccini G., Trifirò A., Toke J., and Verde G.

Subjects
Physics, QC1-999
Abstract

The results of the analysis of the reactions 78,86Kr +40,48 Ca at 10 AMeV are presented. The experiment was performed at the INFN Laboratori Nazionali del Sud (LNS) in Catania by using the 4π multidetector CHIMERA, with beams delivered by the Superconductive Cyclotron. The competition among the various disintegration paths and in particular the isospin effects on the decay modes of the produced composite systems are investigated; this provides information about fundamental nuclear quantities such as level density, fission barrier and viscosity. Different isotopic composition and relative richness are observed among the reaction products of the two systems. An odd-even staggering effect is present in the charge distributions, in particular for the light fragments produced by the neutron-poor system. The kinematical characteristics of the IMF seem to indicate a high degree of the relaxation of the formed system. Besides, global features analysis seems to show some differences in the contribution arising from the various reaction mechanisms for the two reactions.

Published
2016
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3. Isospin influence on the decay modes of compound systems produced in the 78,86Kr + 40,48Ca at 10 AMeV

Author

Pirrone S., Politi G., Wieleczko J.P., De Filippo E., Gnoffo B., Russotto P., Trimarchi M., La Commara M., Vigilante M., Ademard G., Amorini F., Auditore L., Beck C., Berceanu I., Bonnet E., Borderie B., Cardella G., Chibihi A., Colonna M., D’Onofrio A., Frankland J. D., Geraci E., Henry E., La Guidara E., Lanzalone G., Lautesse P., Lebhertz D., Le Neindre N., Lombardo I., Mazurek K., Norella S., Pagano A., Pagano E.V., Papa M., Piasecki E., Porto F., Quattrocchi L., Quinlann M., Rizzo F., Schroeder W. U., Spadaccini G., Trifirò A., Toke J., and Verde G.

Subjects
Physics, QC1-999
Abstract

The study of the decay modes competition of the compound systems produced in the collisions 78Kr+40Ca and 86Kr+48Ca at 10AMeV is presented. In particular, the N/Z entrance channel influence on the decay paths of the compound systems, directly connected to the isospin influence, is investigated. The experiment was performed at the INFN Laboratori Nazionali del Sud (LNS) in Catania by using the 4π multi-detector CHIMERA. Charge, mass, angular distributions and kinematical features of the reaction products were studied. The analysis shows some differences in the contribution arising from the various reaction mechanisms for the neutron poor and neutron rich systems. Comparison with theoretical statistical and dynamical models are presented for the two systems. Besides a study of the influence of the energy on the entrance channel is performed for the 78Kr+40Ca reaction, by comparing the results of this experiment to those obtained for the same system at 5.5 AMeV with the INDRA device at GANIL.

Published
2016
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4. Sensitivity of N/Z ratio in projectile break-up of isobaric systems

Author

De Filippo E., Pagano A., Russotto P., Acosta L., Auditore L., Baran V., Cap T., Cardella G., Colonna M., Francalanza L., Gnoffo B., Lanzalone G., Lombardo I., Marquínez-Durán G., Maiolino C., Minniti T., Norella S., Pagano E.V., Papa M., Piasecki E., Pirrone S., Politi G., Porto F., Quattrocchi L., Rizzo F., Rosato E., Trifirò A., Trimarchi M., Verde G., Vigilante M., Siwek-Wilczyńska K., and Wilczyński J.

Subjects
Physics, QC1-999
Abstract

The binary break-up of projectile-like fragments in non central heavy-ion collisions follows different decay patterns, from equilibrated emission towards dynamical (prompt) fission. Recently, comparing two systems with different N/Z in the entrance channel, it has been shown that the dynamical emission cross-section is enhanced for the most neutron rich system while the statistical emission cross-section is independent from the isotopic composition. In order to understand this dependence and disentangle it from the initial size of the nuclei, we have studied the two isobaric systems 124Xe+64 Zn and 124Xe+64 Ni at 35 A MeV (InKiIsSy experiment), in comparison with the previous studied reactions (124Sn +64 Ni and 112Sn +58 Ni) at the same bombarding energy. We present the first results evidencing a striking similar effect in the dynamical decay as a function of the N/Z of the target for equal size systems.

Published
2016
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6. The InKiIsSY experiment at LNS: A study of size vs. isospin effects with 124Xe+64Zn and 124,112Sn+64,58Ni reactions

Author

Quattrocchi L., Acosta L., Auditore L., Baran V., Cap T., Cardella G., Colonna M., De Filippo E., Francalanza L., Geraci E., Gnoffo B., Lanzalone G., Lombardo I., Maiolino C., Marquínez-Durán G., Morgana E., Minniti T., Norella S., Pagano A., Pagano E.V., Papa M., Piasecki E., Pirrone S., Politi G., Porto F., Rizzo F., Rosato E., Russotto P., Trifirò A., Trimarchi M., Verde G., Vigilante M., and Wilczynski J.

Subjects
Physics, QC1-999
Abstract

The systems 124Sn+64Ni and 112Sn+58Ni at 35 AMeV were analyzed in previous experiments, by using the 4π multi-detector CHIMERA in order to investigate the time-scale and mechanisms of fragments formation. By comparing the two systems, effects that have been correlated to Isospin transport in reaction dynamics and symmetry energy term of nuclear equation of state at sub-saturation density were found. Recently, in order to disentangle the Isospin effects from size effects the 124Xe+64Ni reaction was investigated at the same beam energy of 35 AMeV.

Published
2015
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7. 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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8. Decay competition for IMF produced in the collisions 78Kr+40Ca and 86Kr+48Ca at 10 A·MeV

Author

La Commara M., Pirrone S., Politi G., Wieleczko J.P., Ademard G., De Filippo E., Vigilante M., Amorini F., Auditore L., Beck C., Berceanu I., Bonnet E., Borderie B., Cardella G., Chbihi A., Colonna M., Frankland J.D., Geraci E., Henry E., La Guidara E., Lanzalone G., Lautesse P., Lebhertz D., Le Neindre N., Lombardo I., Loria D., Mazurek K., Pagano A., Papa M., Piasecki E., Porto F., Quinlann M., Rivet M.F., Rizzo F., Rosato E., Russotto P., Schroeder W.U., Spadaccini G., Trifirò A., Toke J., Trimarchi M., and Verde G.

Subjects
Physics, QC1-999
Abstract

Decay modes of excited compound systems 118Ba and 134Ba, produced respectively in the 78Kr+40Ca and 86Kr+48Ca collisions at 10 A·MeV, are investigated. In particular, the competition between the various disintegration path of medium mass compound nuclei, formed by fusion processes, the production of the so referred Intermediate Mass Fragments (IMF), and the isospin dependence of the decay process are studied. Data were taken at the INFN-Laboratori Nazionali del Sud (LNS) by using the CHIMERA array. Data analysis is in progress; a first indication on the average-energy angular distributions suggests pre-equilibrium effects affecting the data and the presence of isotopical effects.

Published
2014
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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. Decay modes of the systems formed in the reactions 78Kr+40Ca and 86Kr+48Ca

Author

Colonna M., Chbihi A., Cardella G., Borderie B., Bonnet E., Berceanu I., Beck C., Auditore L., Amorini F., Vigilante M., De Filippo E., Ademard G., Wieleczko J.P., Politi G., Pirrone S., La Commara M., D’Onofrio A., Frankland J. D., Geraci E., Henry E., La Guidara E., Lanzalone G., Lautesse P., Lebhertz D., Le Neindre N., Lombardo I., Loria D., Mazurek K., Pagano A., Papa M., Piasecki E., Porto F., Quinlannl M., Rizzo F., Rosato E., Russotto P., Schroeder W. U., Spadaccini G., Trifirò A., Tõke J., Trimarchi M., and Verde G.

Subjects
Physics, QC1-999
Abstract

Preliminary outcome of ISODEC experiment, performed at INFNLNS with the CHIMERA array, are presented. Disintegration path dependence on the entrance-channel N/Z ratios (isospin asymmetries) for the reactions 78Kr+40Ca and 86Kr+48Ca at 10 A·MeV, which give origin to the intermediate systems 118Ba and 134Ba, is being investigated. Staggering effects seem to be present as it was the case of a complementary measurement performed at GANIL at lower energy, i.e. 78,82Kr+40Ca at 5.5 A·MeV.

Published
2012
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11. 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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12. Study and comparison of the decay modes of the systems formed in the reactions 78Kr+40Ca and 86Kr+48Ca at 10 AMeV

Author

Verde G., Trifirò A., Schroeder W.U., Spadaccini G., Russotto P., Rosato E., Rizzo F., Quinlann M., Porto F., Piasecki E., Papa M., Pagano A., Mazurek K., Loria D., Lombardo I., LeNeindre N., Lebhertz D., Lautesse P., Lanzalone G., LaGuidara E., Henry E., Geraci E., Frankland J.D., D'Onofrio A., Colonna M., Chbihi A., Cardella G., Borderie B., Bonnet E., Berceanu I., Beck C., Auditore L., Amorini F., Vigilante M., Filippo E. De, Ademard G., Wieleczko J.P., Commara M. La, Pirrone S., and Politi G.

Subjects
Physics, QC1-999
Abstract

The first results of the ISODEC experiment, performed at the INFN Laboratori Nazionali del Sud (LNS) by using the CHIMERA detector, are presented. The principal aim of this experiment is to explore the isospin dependence of the decay modes of medium mass compound nuclei formed by fusion processes, by studying the competition between the various disintegration modes of 118,134Ba nuclei produced in the reactions 78Kr+40Ca and 86Kr+48Ca at 10 AMeV. The studied systems allow in fact to produce compound nuclei with a large variation of N/Z, and such data will also provide new constraint on sophisticated models attempting to describe statistical and/or dynamical properties of excited nuclei. The experiment complements data already obtained at 5.5 AMeV for 78,82Kr+40Ca reactions, previously realized at GANIL by using the INDRA detector. First results show a strong staggering effects in the Z distributions, as well as different isotopic composition and enrichment for the reaction products in the two systems.

Published
2012
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13. ISODEC Experiment: study and comparison of the decay mode of 78Kr+40Ca and 86Kr+48Ca systems at 10 AMeV

Author

Piasecki E., Papa M., Pagano A., Mazurek K., Loria D., Lombardo I., Le Neindre N., Lebhertz D., Lautesse P., Lanzalone G., La Guidara E., Henry E., Geraci E., Frankland J.D., D’Onofrio A., Colonna M., Chbihi A., Cardella G., Borderie B., Bonnet E., Berceanu I., Beck C., Auditore L., Amorini F., Vigilante M., De Filippo E., Ademard G., Wieleczko J.P., La Commara M., Politi G., Pirrone S., Porto F., Quinlann M., Rizzo F., Rosato E., Russotto P., Schroeder W.U., Spadaccini G., Trifirò A., Toke J., Trimarchi M., and Verde G.

Subjects
Physics, QC1-999
Abstract

We present the first results of the ISODEC experiment, performed at the INFN-LNS with the CHIMERA device, in order to study the competition between the various disintegration modes of 118,134Ba compound nuclei produced by bombarding 40,48Ca targets with beams of 78,86Kr at 10 AMeV. This work aims thus to explore the isospin dependence of the decay modes of medium mass compound nuclei formed by fusion processes. The experiment complements data already obtained at 5.5 MeV/A for 78,82Kr+40Ca reactions, studied by Ademard et al. with beams delivered by GANIL facility and by using the INDRA detector.

Published
2011
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14. Barrier height distributions – the influence of weak channels

Author

Piasecki E., Lommel B., Kowalczyk M., Koshchiy E., Kordyasz A., Koczoń P., Kisieliński M., Decowski P., Czarnacki W., Trzcińska A., Rusek K., Strojek I., Stolarz A., and Zerva K.

Subjects
Physics, QC1-999
Abstract

The barrier distributions for the 20Ne+58,60,61Ni systems were experimentally determined. In the 58Ni case one observes a distinct “structure” in the distribution (two peaks) which is partially damped for 60Ni and completely smoothed out for 61Ni. It seems that smoothing is caused by non-collective excitations of the target nuclei.

Published
2011
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15. Isospin influence on dynamical production of Intermediate Mass Fragments at Fermi Energies

Author

Russotto, P., De Filippo, E., Pagano, E. V., Acosta, L., Auditore, L., Cap, T., Cardella, G., De Luca, S., Gnoffo, B., Lanzalone, G., Lombardo, I., Maiolino, C., Martorana, N. S., Minniti, T., Norella, S., Pagano, A., Papa, M., Piasecki, E., Pirrone, S., Politi, G., Porto, F., Quattrocchi, L., Rizzo, F., Rosato, E., Siwek-Wilczyńska, K., Trifirò, A., Trimarchi, M., Verde, G., and Wilczyński, J.

Subjects
Nuclear Experiment
Abstract

The Intermediate Mass Fragments emission probability from Projectile-Like Fragment break-up in semi-peripheral reactions has been measured in collisions of $^{124}$Xe projectiles with two different targets of $^{64}$Ni and $^{64}$Zn at the laboratory energy of 35 \amev. The two colliding systems differ only for the target atomic number Z and, consequently, for the Isospin $N/Z$ ratio. An enhancement of Intermediate Mass Fragments production for the neutron rich $^{64}$Ni target, with respect to the $^{64}$Zn, is found. In the case of one Intermediate Mass Fragment emission, the contributions of the dynamical and statistical emissions have been evaluated, showing that the increase of the effect above is due to an enhancement of the dynamical emission probability, especially for heavy IMFs (Z$\gtrsim$ 7). This proves an influence of the target Isospin on inducing the dynamical fragment production from Projectile-Like Fragment break-up. In addition, a comparison of the Xe+Ni,Zn results with the previously studied $^{112,124}Sn+^{58,64}Ni$ systems is discussed in order to investigate the influence of the projectile Isospin alone and to disentangle between Isospin effects against system-size effects on the emission probability. These comparisons suggest that the prompt-dynamical emission is mainly ruled by the $N/Z$ content of, both, projectile and target; for the cases here investigated, the influence of the system size on the dynamical emission probability can be excluded.

Published
2018

16. Freeze-out configuration properties in the 197Au + 197Au reaction at 23 AMeV

Author

Najman, R., Planeta, R., Sochocka, A., Amorini, F., Auditore, L., Cap, T., Cardella, G., De Filippo, E., Geraci, E., Grzeszczuk, A., 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-Wilczynska, K., Skwira-Chalot, I., Trifiro, A., Trimarchi, M., Wilczynski, J., and Zipper, W.

Subjects
Nuclear Experiment
Abstract

Data from the experiment on the 197Au + 197Au reaction at 23 AMeV are analyzed with an aim to find signatures of exotic nuclear configurations such as toroid-shaped objects. The experimental data are compared with predictions of the ETNA code dedicated to look for such configurations and with the QMD model. A novel criterion of selecting events possibly resulting from the formation of exotic freeze-out configurations, "the efficiency factor", is tested. Comparison between experimental data and model predictions may indicate for the formation of flat/toroidal nuclear systems.

Published
2015
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18. DETERMINATION OF IMPACT PARAMETERS IN ALIGNED BREAKUP OF PROJECTILE-LIKE FRAGMENTS IN Au-197+Au-197 COLLISIONS AT 23 A MeV

Author

Cap, T, Siwek-Wilczynska, K, Wilczynski, 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, NG, Pagano, A, Papa, M, Piasecki, E, Pirrone, S, Planeta, R, Politi, G, Rizzo, F, Russotto, P, Skwira-Chalot, I, Trifiro, A, Trimarchi, M, Verde, G, and Zipper, W

Subjects
Nuclear & Particles Physics, Mathematical Sciences, Physical Sciences
Published
2016

19. Determination of Impact Parameters in Aligned Breakup of Projectile-like Fragments in $^{197}$Au + $^{197}$Au Collisions at 23$A$\,MeV

Author

Cap, T, Siwek-Wilczyńska, K, 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, NG, Pagano, A, Papa, M, Piasecki, E, Pirrone, S, Płaneta, R, Politi, G, Rizzo, F, Russotto, P, Skwira-Chalot, I, Trifiró, A, Trimarchi, M, Verde, G, and Zipper, W

Subjects
Mathematical Sciences, Physical Sciences, Nuclear & Particles Physics
Published
2016

20. Evidence for a Novel Reaction Mechanism of a Prompt Shock-Induced Fission Following the Fusion of 78Kr and 40Ca Nuclei at E/A =10 MeV

Author

Henry, E., Toke, J., Nyibule, S., Quinlan, M., Schroder, W. U., Ademard, G., Amorini, F., Auditore, L., Beck, C., Berceanu, I., Bonnet, E., Borderie, B., Cardella, G., Chbihi, A., Colonna, M., De Filippo, E., DOnofrio, A., Frankland, J. D., Geraci, E., La Guidara, E., La Commara, M., Lanzalone, G., Lautesse, P., Lebhertz, D., Neindre, N. Le, Lombardo, I., Loria, D., Mazurek, K., Pagano, A., Papa, M., Piasecki, E., Pirrone, S., Politi, G., Porto, F., Rizzo, F., Rosato, E., Rusotto, P., Spadaccini, G., Trifiro, A., Trimarchi, M., Verde, G., Vigilante, M., and Wieleczko, J. P.

Subjects
Nuclear Experiment
Abstract

An analysis of experimental data from the inverse-kinematics ISODEC experiment on 78Kr+40Ca reaction at a bombarding energy of 10 AMeV has revealed signatures of a hitherto unknown reaction mechanism, intermediate between the classical damped binary collisions and fusion-fission, but also substantially different from what is being termed in the literature as fast fission or quasi fission. These signatures point to a scenario where the system fuses transiently while virtually equilibrating mass asymmetry and energy and, yet, keeping part of the energy stored in a collective shock-imparted and, possibly, angular momentum bearing form of excitation. Subsequently the system fissions dynamically along the collision or shock axis with the emerging fragments featuring a broad mass spectrum centered around symmetric fission, relative velocities somewhat higher along the fission axis than in transverse direction, and virtually no intrinsic spin. The class of massasymmetric fission events shows a distinct preference for the more massive fragments to proceed along the beam direction, a characteristic reminiscent of that reported earlier for dynamic fragmentation of projectile-like fragments alone and pointing to the memory of the initial mass and velocity distribution., Comment: 5 PAGES, 6 FIGURES

Published
2014

21. Asymptotic normalization coefficient for 12C+p→13N12C(10B,9Be)13N12C(p,γ)13N from the 12C+p→13N12C(10B,9Be)13N12C(p,γ)13N reaction and the 12C+p→13N12C(10B,9Be)13N12C(p,γ)13N astrophysical S factor

Author

Artemov, S. V., Yarmukhamedov, R., Burtebayev, N., Karakozov, B. K., Ergashev, F. Kh., Nassurlla, Maulen, Igamov, S. B., Amangeldi, N., Morzabayev, A., Burtebayeva, J., Zhdanov, V. S., Yergaliuly, G., Piasecki, E., Rusek, K., Sakuta, S. B., Demyanova, A., Tojiboev, O. R., Trzcińska, A., Sabidolda, A., Khojayev, R., Tursunmakhatov, K. I., Nassurlla, Marzhan, Wolińska-Cichocka, M., Sadykov, T. Kh., and Saduyev, N.

Published
2022
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23. Correlations between isospin dynamics and Intermediate Mass Fragments emission time scales: a probe for the symmetry energy in asymmetric nuclear matter

Author

De Filippo, E., Amorini, F., Auditore, L., Baran, V., Berceanu, I., Cardella, G., Colonna, M., Geraci, E., Gianì, S., Grassi, L., Grzeszczuk, A., Guazzoni, P., Han, J., La Guidara, E., Lanzalone, G., Lombardo, I., Maiolino, C., Minniti, T., Pagano, A., Papa, M., Piasecki, E., Pirrone, S., Politi, G., Pop, A., Porto, F., Rizzo, F., Russotto, P., Santoro, S., Trifirò, A., Trimarchi, M., Verde, G., Vigilante, M., Wilczyński, J., and Zetta, L.

Subjects
Nuclear Experiment
Abstract

We show new data from the $^{64}$Ni+$^{124}$Sn and $^{58}$Ni+$^{112}$Sn reactions studied in direct kinematics with the CHIMERA detector at INFN-LNS and compared with the reverse kinematics reactions at the same incident beam energy (35 A MeV). Analyzing the data with the method of relative velocity correlations, fragments coming from statistical decay of an excited projectile-like (PLF) or target-like (TLF) fragments are discriminated from the ones coming from dynamical emission in the early stages of the reaction. By comparing data of the reverse kinematics experiment with a stochastic mean field (SMF) + GEMINI calculations our results show that observables from neck fragmentation mechanism add valuable constraints on the density dependence of symmetry energy. An indication is found for a moderately stiff symmetry energy potential term of EOS., Comment: Talk given by E. De Filippo at the 11th International Conference on Nucleus-Nucleus Collisions (NN2012), San Antonio, Texas, USA, May 27-June 1, 2012. To appear in the NN2012 Proceedings in Journal of Physics: Conference Series (JPCS)

Published
2012
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24. Correlations between emission timescale of fragments and isospin dynamics in $^{124}$Sn+$^{64}$Ni and $^{112}$Sn+$^{58}$Ni reactions at 35 AMeV

Author

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

Subjects
Nuclear Experiment
Abstract

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

Published
2012
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27. Nuclear neck-density determination at Fermi energy with CHIMERA detector

Author

Pagano, A., De Filippo, E., Geraci, E., Pagano, E. V., Russotto, P., Siwek-Wilczyńska, K., Acosta, L., Auditore, L., Cap, T., Cardella, G., Chatterjee, M. B., Colonna, M., Gnoffo, B., Favela, F., Lanzalone, G., Maiolino, C., Martorana, N. S., Papa, M., Pirrone, S., Politi, G., Piasecki, E., Quattrocchi, L., Rizzo, F., Trifirò, A., and Trimarchi, M.

Published
2020
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28. Dynamical versus statistical production of Intermediate Mass Fragments at Fermi Energies

Author

Russotto, P., De Filippo, E., Pagano, E. V., Acosta, L., Auditore, L., Cap, T., Cardella, G., De Luca, S., Geraci, E., Gnoffo, B., Lanzalone, G., Lombardo, I., Maiolino, C., Martorana, N. S., Minniti, T., Norella, S., Pagano, A., Papa, M., Piasecki, E., Pirrone, S., Politi, G., Porto, F., Quattrocchi, L., Rizzo, F., Rosato, E., Siwek-Wilczyńska, K., Trifirò, A., Trimarchi, M., Verde, G., and Wilczyński, J.

Published
2020
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29. Elastic and inelastic scattering of 15N ions by 9Be at 84 MeV

Author

Rudchik, A.T., Chercas, K.A., Kemper, K.W., Rusek, K., Rudchik, A.A., Herashchenko, O.V., Koshchy, E.I., Pirnak, Val.M., Piasecki, E., Trzcińska, A., Sakuta, S.B., Siudak, R., Strojek, I., Stolarz, A., Ilyin, A.P., Ponkratenko, O.A., Stepanenko, Yu.M., Shyrma, Yu.O., Szczurek, A., and Uleshchenko, V.V.

Published
2016
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30. Isospin influence on fragments production in 78Kr + 40Ca and 86Kr + 48Ca collisions at 10 MeV/nucleon

Author

Pirrone, S., Politi, G., Gnoffo, B., La Commara, M., De Filippo, E., Russotto, P., Trimarchi, M., Vigilante, M., Colonna, M., Kalandarov, Sh. A., Amorini, F., Auditore, L., Beck, C., Cardella, G., D’Onofrio, A., Geraci, E., Lacroix, D., La Guidara, E., Lanzalone, G., Pagano, A., Pagano, E. V., Papa, M., Piasecki, E., Quattrocchi, L., Rizzo, F., Rosato, E., Spadaccini, G., and Trifirò, A.

Published
2019
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32. 15N elastic and inelastic scattering by 11B at 84 MeV

Author

Rudchik, A.T., Herashchenko, O.V., Kemper, K.W., Rusek, K., Kliczewski, S., Chercas, K.A., Rudchik, A.A., Koshchy, E.I., Pirnak, Val.M., Piasecki, E., Trczińska, A., Sakuta, S.B., Siudak, R., Strojek, I., Stolarz, A., Barabash, A.O., Ilyin, A.P., Ponkratenko, O.A., Stepanenko, Yu.M., Shyrma, Yu.O., Uleshchenko, V.V., Choiński, J., and Szczurek, A.

Published
2015
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35. Asymptotic normalization coefficient for $${{}^{12}\mathrm{C}}+p\rightarrow {{}^{13}\mathrm{N}}$$ from the $${}^{12}{\mathrm{C}}({}^{10}\mathrm{B},{}^{9}{\mathrm{Be}}){}^{13}\mathrm{N}$$ reaction and the $${}^{12}\mathrm{C}(p,\gamma ){}^{13}\mathrm{N}$$ astrophysical S factor

Author

Artemov, S. V., primary, Yarmukhamedov, R., additional, Burtebayev, N., additional, Karakozov, B. K., additional, Ergashev, F. Kh., additional, Nassurlla, Maulen, additional, Igamov, S. B., additional, Amangeldi, N., additional, Morzabayev, A., additional, Burtebayeva, J., additional, Zhdanov, V. S., additional, Yergaliuly, G., additional, Piasecki, E., additional, Rusek, K., additional, Sakuta, S. B., additional, Demyanova, A., additional, Tojiboev, O. R., additional, Trzcińska, A., additional, Sabidolda, A., additional, Khojayev, R., additional, Tursunmakhatov, K. I., additional, Nassurlla, Marzhan, additional, Wolińska-Cichocka, M., additional, Sadykov, T. Kh., additional, and Saduyev, N., additional

Published
2022
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36. Asymptotic Normalization Coefficients for the \({^{17}{\mathrm {F}}}\rightarrow {^{16}{\mathrm {O}}}+p\) Configuration from the \({^{16}{\mathrm {O}}}({^{10}{\mathrm {B}}},{^9{\mathrm {Be}}}){^{17}{\mathrm {F}}}\) Reaction and Estimation of the \({^{16}{\mathrm {O}}}(p,\gamma ){^{17}{\mathrm {F}}}\) Astrophysical \(S\)-factor

Author

Ergashev, F.Kh., primary, Artemov, S.V., additional, Tojiboev, O.R., additional, Karakhodzhaev, A.A., additional, Rusek, K., additional, Trzcińska, A., additional, Wolińska-Cichocka, M., additional, Piasecki, E., additional, Burtebayev, N., additional, Sakuta, S.B., additional, Nassurlla, M., additional, and Rumi, R.F., additional

Published
2022
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37. The FAZIA project in Europe: R&D phase

Author

Bougault, R., Poggi, G., Barlini, S., Borderie, B., Casini, G., Chbihi, A., Le Neindre, N., Pârlog, M., Pasquali, G., Piantelli, S., Sosin, Z., Ademard, G., Alba, R., Anastasio, A., Barbey, S., Bardelli, L., Bini, M., Boiano, A., Boisjoli, M., Bonnet, E., Borcea, R., Bougard, B., Brulin, G., Bruno, M., Carboni, S., Cassese, C., Cassese, F., Cinausero, M., Ciolacu, L., Cruceru, I., Cruceru, M., D’Aquino, B., De Fazio, B., Degerlier, M., Desrues, P., Di Meo, P., Dueñas, J. A., Edelbruck, P., Energico, S., Falorsi, M., Frankland, J. D., Galichet, E., Gasior, K., Gramegna, F., Giordano, R., Gruyer, D., Grzeszczuk, A., Guerzoni, M., Hamrita, H., Huss, C., Kajetanowicz, M., Korcyl, K., Kordyasz, A., Kozik, T., Kulig, P., Lavergne, L., Legouée, E., Lopez, O., Łukasik, J., Maiolino, C., Marchi, T., Marini, P., Martel, I., Masone, V., Meoli, A., Merrer, Y., Morelli, L., Negoita, F., Olmi, A., Ordine, A., Paduano, G., Pain, C., Pałka, M., Passeggio, G., Pastore, G., Pawłowski, P., Petcu, M., Petrascu, H., Piasecki, E., Pontoriere, G., Rauly, E., Rivet, M. F., Rocco, R., Rosato, E., Roscilli, L., Scarlini, E., Salomon, F., Santonocito, D., Seredov, V., Serra, S., Sierpowski, D., Spadaccini, G., Spitaels, C., Stefanini, A. A., Tobia, G., Tortone, G., Twaróg, T., Valdré, S., Vanzanella, A., Vanzanella, E., Vient, E., Vigilante, M., Vitiello, G., Wanlin, E., Wieloch, A., Zipper, W., and The FAZIA Collaboration

Published
2014
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38. Barrier distributions of the Mg 24 + Zr 90,92 systems: Influence of energy dissipation

Author

Trzcinska A., Piasecki E., Cardella G., Dell'aquila D., De Filippo E., De Luca S., Gnoffo B., Kowalczyk M., Lanzalone G., Lombardo I., Maiolino C., Martorana N. S., Pagano A., Pagano E. V., Pirrone S., Politi G., Quattrocchi L., Rizzo F., Russotto P., Trifiro A., Trimarchi M., Vigilante M., Trzcinska, A., Piasecki, E., Cardella, G., Dell'Aquila, D., De Filippo, E., De Luca, S., Gnoffo, B., Kowalczyk, M., Lanzalone, G., Lombardo, I., Maiolino, C., Martorana, N. S., Pagano, A., Pagano, E. V., Pirrone, S., Politi, G., Quattrocchi, L., Rizzo, F., Russotto, P., Trifiro, A., Trimarchi, M., and Vigilante, M.

Subjects
Fusion Reactions, Elastic Scattering, Energy Barriers
Abstract

We present results of barrier distribution measurements for Mg24+Zr90,92 systems by the backscattering method. The measurements were done at near-barrier beam energies of 68-88.5 MeV (in the laboratory frame) at six angles. A strong discrepancy between experimental results and the predictions of the standard coupled channels calculations was observed. To test the hypothesis that this discrepancy may be due to partial energy dissipation caused by coupling to many target noncollective levels, we performed calculations using the coupled channels plus random matrix theory (CC+RMT) model. The comparison of calculations with experimental results gives qualitative support of the hypothesis; however, quantitatively the agreement is not as good as in the case of the Ne20 projectile.

Published
2020

40. Isotopic effects in elastic and inelastic 12C + 16, 18O scattering

Author

Rudchik, A. T., Shyrma, Yu. O., Kemper, K. W., Rusek, K., Koshchy, E. I., Kliczewski, S., Novatsky, B. G., Ponkratenko, O. A., Piasecki, E., Romanyshyna, G. P., Stepanenko, Yu. M., Strojek, I., Sakuta, S. B., Budzanowski, A., Głowacka, L., Skwirczyńska, I., Siudak, R., Choiński, J., and Szczurek, A.

Published
2010
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41. Li6+N15 interaction at Ec.m.=23.1 MeV : Validation of the α+d cluster model of Li6

Author

Rudchik, A. T., primary, Rudchik, A. A., additional, Chepurnov, O. O., additional, Rusek, K., additional, Keeley, N., additional, Kemper, K. W., additional, Kliczewski, S., additional, Piasecki, E., additional, Trzcińska, A., additional, Pirnak, Val. M., additional, Ponkratenko, O. A., additional, Strojek, I., additional, Koshchy, E. I., additional, Siudak, R., additional, Sakuta, S. B., additional, Ilyin, A. P., additional, Stepanenko, Yu. M., additional, Shyrma, Yu. O., additional, Uleshchenko, V. V., additional, Chercas, K. A., additional, Maridi, H. M., additional, and Burtebayev, N., additional

Published
2021
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42. SARS-CoV-2: Remarks on the COVID-19 Pandemic

Author

Piasecki E

Subjects
2019-20 coronavirus outbreak, History, Coronavirus disease 2019 (COVID-19), Coronaviridae, Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), viruses, Immunology, Pneumonia, Viral, Review, Communicable Diseases, Emerging, Virus, Host Specificity, 03 medical and health sciences, Disease susceptibility, Betacoronavirus, 0302 clinical medicine, Risk groups, Zoonoses, Development economics, Pandemic, Immunology and Allergy, Animals, Humans, 030212 general & internal medicine, Disease Eradication, Selection, Genetic, Pandemics, 030304 developmental biology, 0303 health sciences, Virulence, SARS-CoV-2, COVID-19, General Medicine, Biological Evolution, Communicable Disease Control, Disease Susceptibility, Coronavirus Infections, Forecasting
Abstract

The COVID-19 pandemic developing rapidly in 2020 is triggered by the emergence of a new human virus—SARS-CoV-2. The emergence of a new virus is not an unexpected phenomenon and has been predicted for many years. Since the virus has spread all over the world, it will be very difficult or even impossible to eradicate it. A necessary condition for complete or partial elimination of the virus is to have an effective vaccine. It is possible that SARS-CoV-2 will become milder in the next few years and COVID-19 will then only threaten individuals from risk groups.

Published
2020

43. Barrier distributions of the Mg24+Zr90,92 systems: Influence of energy dissipation

Author

Trzcińska, A., Piasecki, E., Cardella, G., Dell'Aquila, D., De Filippo, E., De Luca, S., Gnoffo, B., Kowalczyk, M., Lanzalone, G., Lombardo, I., Maiolino, C., Martorana, N. S., Pagano, A., Pagano, E. V., Pirrone, S., Politi, G., Quattrocchi, L., Rizzo, F., Russotto, P., Trifiro, A., Trimarchi, M., and Vigilante, M.

Published
2020

44. First identification of rotational bands in 103Tc: Evolution of intrinsic proton states of the 97-105 43Tc isotopes

Author

Bauchet, A., Deloncle, I., Porquet, M.-G., Astier, A., Buforn, N., Meyer, M., Perriès, S., Redon, N., Gall, B.J.P., Hoellinger, F., Schulz, N., Duchêne, G., Courtin, S., Venkova, Ts., Butler, P.A., Amzal, N., Herzberg, R.D., Chewter, A., Cunningham, R., Houry, M., Lucas, R., Urban, W., Nowak, A., Piasecki, E., Duprat, J., Petrache, C., and Kröll, T.

Published
2001
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45. Barrier distributions of the Mg24+Zr90,92 systems: Influence of energy dissipation

Author

Trzcińska, A., primary, Piasecki, E., additional, Cardella, G., additional, Dell'Aquila, D., additional, De Filippo, E., additional, De Luca, S., additional, Gnoffo, B., additional, Kowalczyk, M., additional, Lanzalone, G., additional, Lombardo, I., additional, Maiolino, C., additional, Martorana, N. S., additional, Pagano, A., additional, Pagano, E. V., additional, Pirrone, S., additional, Politi, G., additional, Quattrocchi, L., additional, Rizzo, F., additional, Russotto, P., additional, Trifiro, A., additional, Trimarchi, M., additional, and Vigilante, M., additional

Published
2020
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46. Synthesis of new alkylated and methoxylated analogues of ebselen with antiviral and antimicrobial properties

Author

Ewa Zaczyńska, Rafał Kaleta, Mirosław Giurg, Małgorzata Burda-Grabowska, John A. Joule, Magdalena Piętka-Ottlik, Joanna Waleńska, Marta Woźna, and Piasecki E

Subjects
lcsh:QD241-441, chemistry.chemical_compound, lcsh:Organic chemistry, chemistry, 010405 organic chemistry, Ebselen, Organic Chemistry, Alkylation, 010402 general chemistry, Antimicrobial, 01 natural sciences, Combinatorial chemistry, 0104 chemical sciences
Published
2017

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