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15 results on '"Kravchuk, V"'

1. Exploring reaction mechanisms and their competition in 58Ni+48Ca collisions at E = 25 AMeV

Author

Francalanza L., Abbondanno U., Amorini F., Barlini S., Bini M., Bougault R., Bruno M., Cardella G., Casini G., Colonna M., D’Agostino M., De Filippo E., De Sanctis J., Geraci E., Giussani A., Gramegna F., Guiot B., Kravchuk V., La Guidara E., Lanzalone G., Le Neindre N., Maiolino C., Marini P., Morelli L., Olmi A., Pagano A., Papa M., Piantelli S., Pirrone S., Politi G., Poggi G., Porto F., Russotto P., Rizzo F., Vannini G., and Vannucci L.

Subjects
Physics, QC1-999
Abstract

Latest results concerning the study of central collisions in 58Ni+48Ca reactions at Elab(Ni)=25 AMeV are presented. The experimental data, collected with the CHIMERA 4π device, have been analyzed in order to investigate the competition among different reaction mechanisms for central collisions in the Fermi energy domain. The method adopted to perform the centrality selection refers to the global variable “flow angle”, that is related to the event shape in momentum space, as it is determined by the eigenvectors of the experimental kinetic-energy tensor. The main features of the reaction products were explored by using different constraints on some of the relevant observables, such as mass and velocity distributions and their correlations. Much emphasis was devoted to the competition between fusion-evaporation processes with subsequent identification of a heavy residue and a prompt multifragmentation mechanism. The reaction mechanism was simulated in the framework of transport theories (dynamical stochastic BNV calculations, followed by sequential SIMON code) and further comparison with dynamical calculations from transport model (QMD, CoMD) are in progress. Moreover, an extension of this study taking into account for the light particles has been envisaged.

Published
2014
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2. Measurement of light charged particles in the decay channels of medium-mass excited compound nuclei

Author

Valdré S., Barlini S., Casini G., Pasquali G., Piantelli S., Carboni S., Cinausero M., Gramegna F., Marchi T., Baiocco G., Bardelli L., Benzoni G., Bini M., Blasi N., Bracco A., Brambilla S., Bruno M., Camera F., Corsi A., Crespi F., D’Agostino M., Degerlier M., Kravchuk V. L., Leoni S., Million B., Montanari D., Morelli L., Nannini A., Nicolini R., Poggi G., Vannini G., Wieland O., Bednarczyk P., Ciemała M., Dudek J., Fornal B., Kmiecik M., Maj A., Matejska-Minda M., Mazurek K., Męczyński W. M, Myalski S., Styczeń J., and Ziębliński M.

Subjects
Physics, QC1-999
Abstract

The 48Ti on 40Ca reactions have been studied at 300 and 600 MeV focusing on the fusion-evaporation (FE) and fusion-fission (FF) exit channels. Energy spectra and multiplicities of the emitted light charged particles have been compared to Monte Carlo simulations based on the statistical model. Indeed, in this mass region (A ~ 100) models predict that shape transitions can occur at high spin values and relatively scarce data exist in the literature about coincidence measurements between evaporation residues and light charged particles. Signals of shape transitions can be found in the variations of the lineshape of high energy gamma rays emitted from the de-excitation of GDR states gated on different region of angular momenta. For this purpose it is important to keep under control the FE and FF processes, to regulate the statistical model parameters and to control the onset of possible pre-equilibrium emissions from 300 to 600 MeV bombarding energy.

Published
2014
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3. Measurement of the 25Mg(α,n)28Si reaction cross section at LNL

Author

Depalo R., Caciolli A., Marchi T., Appannababu S., Blasi N., Broggini C., Camera F., Cinausero M., Collanzuol G., Fabris D., Gramegna F., Kravchuk V. L., Leone M., Lombardi A., Mastinu P., Menegazzo R., Montagnoli G., Prete G., Rigato V., Rossi Alvarez C., and Wieland O.

Subjects
Physics, QC1-999
Abstract

The detection of the 1809 keV emission line associated with the decay of 26Al in the interstellar medium provides a direct evidence of recent nucleosynthesis events in our galaxy. 26Al is thought to be mainly produced in massive stars, but in order to have a quantita- tive understanding of the 26Al distribution, the cross section of all the nuclear reactions involved in its production should be accurately known. A recent sensitivity study demonstrated that the 25Mg(α,n)28Si is the reaction with the strongest impact on the synthesis of 26Al during explosive Neon and Carbon burning [4]. In order to improve the experimental knowledge of the 25Mg(α,n)28Si cross section, a new direct measurement has been performed at Legnaro National Laboratories. The experimental setup, the data analysis and preliminary results are discussed.

Published
2014
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4. Staggering in S+Ni collisions

Author

Bruno M., Dagostino M., Morelli L., Gulminelli F., Baiocco G., Barlini S., Casini G., Gramegna F., Kravchuk V. L., Marchi T., and Raduta Ad. R.

Subjects
Physics, QC1-999
Abstract

Odd-even effects in fragment production have been studied since a long time and never quantitatively understood. The odd-even anomaly was reported in the literature [1,2] to be more pronounced in reactions involving Ni projectile and targets, in particular in n-poor systems. In some experiments [1, 2] the magnitude of the odd-even effect is found to be related to the isospin of the projectile and/or the target. From a theoretical point of view, odd-even effects in fragmentation reactions are clearly linked to the pairing residual interaction and its dependence on temperature.

Published
2012
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5. An interpretation of staggering effects by correlation observables

Author

Baiocco G., Morelli L., Gulminelli F., Bruno M., D’Agostino M., Bardelli L., Barlini S., Cannata F., Casini G., Geraci E., Gramegna F., Kravchuk V. L., Marchi T., Moroni A., Ordine A., and Raduta Ad. R.

Subjects
Physics, QC1-999
Abstract

The reactions 32S+58,64Ni are studied at 14.5 A MeV. Evidence is found for odd-even effects in isotopic observables of the decay of a projectile-like source. The influence of secondary decays on the staggering is studied with a correlation function technique, showing that odd-even effects are due to interplay between pairing effects in the nuclear masses and in the level densities.

Published
2012
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6. High intensity neutrino oscillation facilities in Europe

Author

Edgecock, T., Caretta, O., Davenne, T., Densam, C., Fitton, M., Kelliher, D., Loveridge, P., Machida, S., Prior, C., Rogers, C., Rooney, M., Thomason, J., Wilcox, D., Wildner, E., Efthymiopoulos, I., Garoby, R., Gilardoni, S., Hansen, C., Benedetto, E., Jensen, E., Kosmicki, A., Martini, M., Osborne, J., Prior, G., Stora, T., Melo Mendonca, T., Vlachoudis, V., Waaijer, C., Cupial, P., Chancé, A., Longhin, A., Payet, J., Zito, M., Baussan, E., Bobeth, C., Bouquerel, E., Dracos, M., Gaudiot, G., Lepers, B., Osswald, F., Poussot, P., Vassilopoulos, N., Wurtz, J., Zeter, V., Bielski, J., Kozien, M., Lacny, L., Skoczen, B., Szybinski, B., Ustrycka, A., Wroblewski, A., Marie-Jeanne, M., Balint, P., Fourel, C., Giraud, J., Jacob, J., Lamy, T., Latrasse, L., Sortais, P., Thuillier, T., Mitrofanov, S., Loiselet, M., Keutgen, Th., Delbar, Th., Debray, F., Trophine, C., Veys, S., Daversin, C., Zorin, V., Izotov, I., Skalyga, V., Burt, G., Dexter, A., Kravchuk, V., Marchi, T., Cinausero, M., Gramegna, F., De Angelis, G., Prete, G., Collazuol, G., Laveder, M., Mazzocco, M., Mezzetto, M., Signorini, C., Vardaci, E., Di Nitto, A., Brondi, A., La Rana, G., Migliozzi, P., Moro, R., Palladino, V., Gelli, N., Berkovits, D., Hass, M., Hirsh, T., Schaumann, M., Stahl, A., Wehner, J., Bross, A., Kopp, J., Neuffer, D., Wands, R., Bayes, R., Laing, A., Soler, P., Agarwalla, S., Cervera Villanueva, A., Donini, A., Ghosh, T., Gómez Cadenas, J., Hernández, P., Martín-Albo, J., Mena, O., Burguet-Castell, J., Agostino, L., Buizza-Avanzini, M., Marafini, M., Patzak, T., Tonazzo, A., Duchesneau, D., Mosca, L., Bogomilov, M., Karadzhov, Y., Matev, R., Tsenov, R., Akhmedov, E., Blennow, M., Lindner, M., Schwetz, T., Fernández Martinez, E., Maltoni, M., Menéndez, J., Giunti, C., González García, M., Salvado, J., Coloma, P., Huber, P., Li, T., López Pavón, J., Orme, C., Pascoli, S., Meloni, D., Tang, J., Winter, W., Ohlsson, T., Zhang, H., Scotto-Lavina, L., Terranova, F., Bonesini, M., Tortora, L., Alekou, A., Aslaninejad, M., Bontoiu, C., Kurup, A., Jenner, L., Long, K., Pasternak, J., Pozimski, J., Back, J., Harrison, P., Beard, K., Bogacz, A., Berg, J., Stratakis, D., Witte, H., Snopok, P., Bliss, N., Cordwell, M., Moss, A., Pattalwar, S., Apollonio, M., Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI-G), Université Joseph Fourier - Grenoble 1 (UJF)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), APC - Neutrinos, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Edgecock, T, Caretta, O, Davenne, T, Densam, C, Fitton, M, Kelliher, D, Loveridge, P, Machida, S, Prior, C, Rogers, C, Rooney, M, Thomason, J, Wilcox, D, Wildner, E, Efthymiopoulos, I, Garoby, R, Gilardoni, S, Hansen, C, Benedetto, E, Jensen, E, Kosmicki, A, Martini, M, Osborne, J, Prior, G, Stora, T, Melo Mendonca, T, Vlachoudis, V, Waaijer, C, Cupial, P, Chancé, A, Longhin, A, Payet, J, Zito, M, Baussan, E, Bobeth, C, Bouquerel, E, Dracos, M, Gaudiot, G, Lepers, B, Osswald, F, Poussot, P, Vassilopoulos, N, Wurtz, J, Zeter, V, Bielski, J, Kozien, M, Lacny, L, Skoczen, B, Szybinski, B, Ustrycka, A, Wroblewski, A, Marie Jeanne, M, Balint, P, Fourel, C, Giraud, J, Jacob, J, Lamy, T, Latrasse, L, Sortais, P, Thuillier, T, Mitrofanov, S, Loiselet, M, Keutgen, T, Delbar, T, Debray, F, Trophine, C, Veys, S, Daversin, C, Zorin, V, Izotov, I, Skalyga, V, Burt, G, Dexter, A, Kravchuk, V, Marchi, T, Cinausero, M, Gramegna, F, De Angelis, G, Prete, G, Collazuol, G, Laveder, M, Mazzocco, M, Mezzetto, M, Signorini, C, Vardaci, E, Di Nitto, A, Brondi, A, La Rana, G, Migliozzi, P, Moro, R, Palladino, V, Gelli, N, Berkovits, D, Hass, M, Hirsh, T, Schaumann, M, Stahl, A, Wehner, J, Bross, A, Kopp, J, Neuffer, D, Wands, R, Bayes, R, Laing, A, Soler, P, Agarwalla, S, Cervera Villanueva, A, Donini, A, Ghosh, T, Gómez Cadenas, J, Hernández, P, Martín Albo, J, Mena, O, Burguet Castell, J, Agostino, L, Buizza Avanzini, M, Marafini, M, Patzak, T, Tonazzo, A, Duchesneau, D, Mosca, L, Bogomilov, M, Karadzhov, Y, Matev, R, Tsenov, R, Akhmedov, E, Blennow, M, Lindner, M, Schwetz, T, Fernández Martinez, E, Maltoni, M, Menéndez, J, Giunti, C, González García, M, Salvado, J, Coloma, P, Huber, P, Li, T, López Pavón, J, Orme, C, Pascoli, S, Meloni, D, Tang, J, Winter, W, Ohlsson, T, Zhang, H, Scotto Lavina, L, Terranova, F, Bonesini, M, Tortora, L, Alekou, A, Aslaninejad, M, Bontoiu, C, Kurup, A, Jenner, L, Long, K, Pasternak, J, Pozimski, J, Back, J, Harrison, P, Beard, K, Bogacz, A, Berg, J, Stratakis, D, Witte, H, Snopok, P, Bliss, N, Cordwell, M, Moss, A, Pattalwar, S, Apollonio, M, European Commission, Bulgarian National Science Fund, Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-AstroParticule et Cosmologie (APC (UMR_7164)), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Edgecock, T. R., Caretta, O., Davenne, T., Densam, C., Fitton, M., Kelliher, D., Loveridge, P., Machida, S., Prior, C., Rogers, C., Rooney, M., Thomason, J., Wilcox, D., Wildner, E., Efthymiopoulos, I., Garoby, R., Gilardoni, S., Hansen, C., Benedetto, E., Jensen, E., Kosmicki, A., Martini, M., Osborne, J., Prior, G., Stora, T., Melo Mendonca, T., Vlachoudis, V., Waaijer, C., Cupial, P., Chance, A., Longhin, A., Payet, J., Zito, M., Baussan, E., Bobeth, C., Bouquerel, E., Dracos, M., Gaudiot, G., Lepers, B., Osswald, F., Poussot, P., Vassilopoulos, N., Wurtz, J., Zeter, V., Bielski, J., Kozien, M., Lacny, L., Skoczen, B., Szybinski, B., Ustrycka, A., Wroblewski, A., Marie Jeanne, M., Balint, P., Fourel, C., Giraud, J., Jacob, J., Lamy, T., Latrasse, L., Sortais, P., Thuillier, T., Mitrofanov, S., Loiselet, M., Keutgen, T. h., Delbar, T. h., Debray, F., Trophine, C., Veys, S., Daversin, C., Zorin, V., Izotov, I., Skalyga, V., Burt, G., Dexter, A. C., Kravchuk, V. L., Marchi, T., Cinausero, M., Gramegna, F., De Angelis, G., Prete, G., Collazuol, G., Laveder, M., Mazzocco, M., Mezzetto, M., Signorini, C., Vardaci, Emanuele, Di Nitto, A., Brondi, Augusto, LA RANA, Giovanni, Migliozzi, Pasquale, Moro, RENATA EMILIA MARIA, Palladino, Vittorio, Gelli, N., Berkovits, D., Hass, M., Hirsh, T. Y., Schaumann, M., Stahl, A., J. W. e. h. n. e. r., Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), and Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], 7. Clean energy, 01 natural sciences, Nuclear physics, neutrino, 0103 physical sciences, Emma, Fysik, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, 010306 general physics, Neutrino oscillation, QC, Astroparticle physics, Physics, Large Hadron Collider, Beta-Beam, 010308 nuclear & particles physics, Física, Surfaces and Interfaces, Accelerators and Storage Rings, Neutrino detector, Physical Sciences, lcsh:QC770-798, Physics::Accelerator Physics, Neutrino Factory, High Energy Physics::Experiment, Neutrino, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Storage ring, Lepton
Abstract

The EUROnu project has studied three possible options for future, high intensity neutrino oscillation facilities in Europe. The first is a Super Beam, in which the neutrinos come from the decay of pions created by bombarding targets with a 4 MW proton beam from the CERN High Power Superconducting Proton Linac. The far detector for this facility is the 500 kt MEMPHYS water Cherenkov, located in the Frejus tunnel. The second facility is the Neutrino Factory, in which the neutrinos come from the decay of mu(+) and mu(-) beams in a storage ring. The far detector in this case is a 100 kt magnetized iron neutrino detector at a baseline of 2000 km. The third option is a Beta Beam, in which the neutrinos come from the decay of beta emitting isotopes, in particular He-6 and Ne-18, also stored in a ring. The far detector is also the MEMPHYS detector in the Frejus tunnel. EUROnu has undertaken conceptual designs of these facilities and studied the performance of the detectors. Based on this, it has determined the physics reach of each facility, in particular for the measurement of CP violation in the lepton sector, and estimated the cost of construction. These have demonstrated that the best facility to build is the Neutrino Factory. However, if a powerful proton driver is constructed for another purpose or if the MEMPHYS detector is built for astroparticle physics, the Super Beam also becomes very attractive., We acknowledge the financial support of the European Community under the European Commission Framework Program 7 Design Study: EUROnu, Project No. 212372 and from the National Science Fund of Bulgaria under Contract No. 02-149/07.10.2009

Published
2013
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7. Isotope analysis in central heavy ion collisions at intermediate energies

Author

Collaboration, NUCL-EX, Geraci, E., Abbondanno, U., Bardelli, L., Barlini, S., Bini, M., Bruno, M., Cannata, F., Casini, G., Chiari, M., D'Agostino, M., DeSanctis, J., Giussani, A., Gramegna, F., Kravchuk, V. L., Lanchais, A. L., Marini, P., Moroni, A., Nannini, A., Olmi, A., Ordine, A., Pasquali, G., Piantelli, S., Poggi, G., Vannini, G., E. Geraci, U. Abbondanno, L. Bardelli, S. Barlini, M. Bini, M. Bruno, F. Cannata, G. Casini, M. Chiari, M. D’Agostino, J. De Sancti, A. Giussani, F. Gramegna, V. L. Kravchuk, A. L. Lanchai, P. Marini, A. Moroni, A. Nannini, A. Olmi, A. Ordine, G. Pasquali, S. Piantelli, G. Poggi, and G. Vannini

Subjects
Physics, Equation of state, ASYMMETRIC NUCLEAR MATTER, EQUATION OF STATE, Physics::Medical Physics, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, General Physics and Astronomy, SYMMETRY ENERGY, HEAVY-ION COLLISIONS, Nuclear matter, Symmetry (physics), Nuclear physics, ISOTOPES, General Materials Science, Heavy ion, Nuclear Experiment (nucl-ex), Physical and Theoretical Chemistry, Atomic physics, Nuclear Experiment
Abstract

Symmetry energy is a key quantity in the study of the equation of state of asymmetric nuclear matter. Heavy ion collisions at low and intermediate energies, performed at Laboratori Nazionali di Legnaro and Laboratori Nazionali del Sud, can be used to extract information on the symmetry energy coefficient Csym, which is currently poorly known but relevant both for astrophysics and for structure of exotic nuclei., 2 pages, 1 figure. Proceedings of 7th International Conference on Radioactive Nuclear Beams (RNB7), to be published in The European Physical Journal A

Published
2007

8. Enhanced alpha-particle production from fusion evaporation reactions leading to Ti-46

Author

F. Gramegna, S. Leoni, Giovanni Casini, Giuseppe Verde, Lorenzo Domenichetti, J. Mabiala, Silvia Piantelli, Luca Morelli, Giuseppe Andreetta, Tommaso Marchi, M. Bruno, Gabriele Pasquali, M. D'Agostino, Sandro Barlini, Daniele Dell’Aquila, Nicla Gelli, L. Scomparin, C. Frosin, Antonio Caciolli, V. L. Kravchuk, P. Ottanelli, Maurizio Bini, G. Mantovani, A. Camaiani, G. Collazuol, G. Pastore, Alessandro Olmi, D. Mengoni, R. Bolzonella, B. Fornal, Ivano Lombardo, A. Buccola, Diego Gruyer, Magda Cicerchia, M. Degerlier, N. Cieplicka-Oryńczak, Daniela Fabris, M. Cinausero, Maria Vittoria Managlia, Simone Valdré, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Cicerchia, M., Gramegna, F., Fabris, D., Cinausero, M., Marchi, T., Andreetta, G., Barlini, S., Bini, M., Bolzonella, R., Bruno, M., Buccola, A., Caciolli, A., Camaiani, A., Casini, G., Cieplicka-Orynczak, N., Collazuol, G., D'Agostino, M., Degerlier, M., Dell'Aquila, D., Domenichetti, L., Fornal, B., Frosin, C., Gelli, N., Gruyer, D., Kravchuk, V. L., Leoni, S., Lombardo, I., Mabiala, J., Managlia, M. V., Mantovani, G., Mengoni, D., Morelli, L., Olmi, A., Ottanelli, P., Pasquali, G., Pastore, G., Piantelli, S., Scomparin, L., Valdre, S., and Verde, G.

Subjects
Nuclear reaction, Nuclear and High Energy Physics, Evaporation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, nuclear reaction, Physics, Particles & Fields, Fusion-evaporation, 0103 physical sciences, Charged particles identification, α-emission, 010306 general physics, Physics, Fusion, Science & Technology, 010308 nuclear & particles physics, alpha-emission, charged particles identification, fusion-evaporation, Physics, Nuclear, Chemical engineering, Physical Sciences, α particles
Abstract

In this paper, we report a detailed study on the de-excitation of the 46Ti compound nucleus populated by means of four different reactions: 16O + 30Si at 7 and 8 AMeV, 18O + 28Si at 7 AMeV and 19F + 27Al at 7 AMeV. The GARFIELD detection array was used to measure the light charged particles and the heavy fragments emitted. This setup covers a large fraction of the solid angle with high-granularity. Complete events are chosen through total charge (Z TOT = 22) detection. Fusion-evaporation events are selected based on the condition that only one heavy fragment is detected in coincidence with the light charged particles. The analysis of global observables, such as charge distribution and light charged particle multiplicities, is compatible with the formation of a thermalized compound nucleus for all the four reactions. Nevertheless, an enhanced emission of α-particles with respect to a pure statistical picture is observed at very forward angles (α-particles.

Published
2021
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9. Constraining Hot Sources in Central Heavy-ion Collisions Below 20 MeV/$u$

Author

B. Fornal, Alessandro Olmi, O. V. Fotina, G. Prete, Luca Morelli, J. Mabiala, D. Fabris, Emanuele Vardaci, Maurizio Bini, M. D'Agostino, B. Szpak, S. Leoni, Giorgio Baiocco, Simone Valdré, A. Maj, Giovanni Casini, Maria Colonna, Magda Cicerchia, S. Myalski, B. Million, S. Brambilla, F. C. L. Crespi, M. Kmiecik, M. Zieblinski, A. Bracco, Gabriele Pasquali, M. Bruno, Sandro Barlini, A. Giaz, F. Camera, W. Meczynski, G. Benzoni, O. Wieland, M. Matejska-Minda, V. L. Kravchuk, B. Wasilewska, R. Nicolini, N. Blasi, Silvia Piantelli, F. Gramegna, Tommaso Marchi, K. Mazurek, J. Styczen, S. Appannababu, D. Montanari, M. Degerlier, M. Cinausero, M. Krzysiek, M. Ciemala, P. Bednarczyk, Valdré, S., Piantelli, S., Casini, G., Barlini, S., Ciemała, M., Kmiecik, M., Maj, A., Mazurek, K., Cinausero, M., Gramegna, F., Kravchuk, V. L., Morelli, L., Marchi, T., Appannababu, S., Baiocco, G., Bednarczyk, P., Benzoni, G., Bini, M., Blasi, N., Bracco, A., Brambilla, S., Bruno, M., Camera, F., Cicerchia, M., Colonna, M., Crespi, F. C. L., D'Agostino, M., Degerlier, M., Fabris, D., Fornal, B., Fotina, O. V., Giaz, A., Krzysiek, M., Leoni, S., Mabiala, J., Matejska Minda, M., Męczyński, W., Million, B., Montanari, D., Myalski, S., Nicolini, R., Olmi, A., Pasquali, G., Prete, G., Styczeń, J., Szpak, B., Vardaci, Emanuele, Wasilewska, B., Wieland, O., and Ziębliński, M.

Subjects
Nuclear physics, Physics, Physics and Astronomy (all), General Physics and Astronomy, Heavy ion
Abstract

Pre-equilibrium emissions affect the production of excited systems in nuclear reactions, thus modifying their properties which enter as input parameters in the comparison with statistical models. In this contribution, we discuss this subject referring to recent results from experiments performed at Legnaro National Laboratories (Italy) with the GARFIELD apparatus complemented with other detectors. ispartof: Acta Physica Polonica B vol:48 issue:3 pages:635-639 ispartof: location:Zakopane: POLAND status: published

Published
2017
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10. Pre-equilibrium emission to study clustering in nuclei

Author

Emanuele Vardaci, M. D'Agostino, O. V. Fotina, Tommaso Marchi, Silvia Piantelli, Giacomo Poggi, Akira Ono, D. Fabris, Maria Colonna, Magda Cicerchia, F. Gramegna, J. Mabiala, Sandro Barlini, G. Mantovani, M. Cinausero, Nicla Gelli, Maurizio Bini, Gabriele Pasquali, M. Bruno, M. Degerlier, Alessandro Olmi, Luca Morelli, Simone Valdré, V. L. Kravchuk, Giovanni Casini, E.C. Simpson, C. Simenel, K.J. Cook and I.P. Carter, Fabris, D., Gramegna, F., Cicerchia, M., Marchi, T., Barlini, S., Piantelli, S., Bini, M., Bruno, M., Casini, G., Cinausero, M., D'Agostino, M., Degerlier, M., Gelli, N., Mantovani, G., Morelli, L., Mabiala, J., Olmi, A., Pasquali, G., Poggi, G., Valdré, S., Vardaci, E., Fotina, O. V., Kravchuk, V. L., Colonna, M., Ono, A., Grand Accélérateur National d'Ions Lourds (GANIL), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Light nucleus, 010308 nuclear & particles physics, QC1-999, Evaporation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear matter, 01 natural sciences, Particle emission, 0103 physical sciences, Compound system, Atomic physics, Nuclear Experiment, 010306 general physics, Cluster analysis, Beam (structure)
Abstract

International audience; Clustering structural properties in medium-mass systems have been investigated studying the competition between the evaporation and pre-equilibrium particle emission in central collisions. At variance with light nuclei, in the case of heavier nuclei there are no experimental evidences of such structure effects, since the determination of pre-formed clusters within nuclear matter is less obvious.The two systems 16O + 65Cu and 19F + 62Ni, leading to the same compound system 81Rb*, have been studied at the same beam velocity (16 AMeV). The experiments have been performed using the GARFIELD + RCo multi-detection system at the Legnaro National Laboratories.Recent results of the data analysis and of the comparison of the experimental data with different statistical and dynamical model calculations are reported in this contribution.

Published
2017
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11. Publisher’s Note: High intensity neutrino oscillation facilities in Europe [Phys. Rev. Accel. Beams16, 021002 (2013)]

Author

C. Bobeth, Maurizio Bonesini, M. Marie-Jeanne, M. Apollonio, C. Waaijer, Th. Delbar, Kenneth Long, Ilias Efthymiopoulos, T.K. Ghosh, François Debray, M. Hass, F. Gramegna, D. Wilcox, Jacques Wurtz, Sanjib Kumar Agarwalla, M. Buizza-Avanzini, Morteza Aslaninejad, Thomas Thuillier, C. Bontoiu, T. Lamy, A. Kurup, R. Matev, Silvia Pascoli, G. Collazuol, B. Szybinski, Patrick Huber, S. Machida, A. Bogacz, O. Mena, L. Agostino, G. Gaudiot, G. de Angelis, Marcos Dracos, J. Giraud, M. C. Gonzalez Garcia, E. Fernandez Martinez, L. Tortora, C. Rogers, F. Terranova, J. Bielski, Tommaso Marchi, Jordi Burguet-Castell, Emanuele Vardaci, Paul Soler, M. Marafini, R. Garoby, Erk Jensen, D. Duchesneau, P. Coloma, Walter Winter, M. Zito, M. Loiselet, M. Martini, He Zhang, L. Lacny, J. W. G. Thomason, Camilla Juul Hansen, A. Longhin, M. Cinausero, J. Payet, E. Benedetto, M. Cordwell, Michele Maltoni, C. Fourel, Simone Gilardoni, Shrikant Pattalwar, A. Chancé, Andrew Moss, M. Schaumann, Holger Witte, T. Stora, A. Stahl, Jordi Salvado, M. Kozien, David Neuffer, Eric Baussan, T. R. Edgecock, R. Moro, C. Trophine, Evgeny Kh. Akhmedov, P. F. Harrison, J. Tang, Elena Wildner, L. Mosca, Th. Keutgen, V. Zeter, K. B. Beard, G. La Rana, S. Mitrofanov, G. Prete, Andrea Donini, David Kelliher, Stéphane Veys, Tommy Ohlsson, A. Di Nitto, D. Meloni, J. J. Back, N. Vassilopoulos, Joachim Kopp, P. Poussot, A. Tonazzo, Carlo Giunti, Javier Fernandez Menendez, T. Y. Hirsh, D. Berkovits, Christopher Prior, Błażej Skoczeń, Y. Karadzhov, Manfred Lindner, V. Vlachoudis, Cécile Daversin, Amos Dexter, J. Lopez Pavon, A. Cervera Villanueva, Pavel Snopok, Mattias Blennow, Diktys Stratakis, Porfidio Hernández, M. Rooney, M. Mazzocco, P. Migliozzi, V. Palladino, J. Martín-Albo, M. Mezzetto, Christopher Orme, M. Bogomilov, A.K. Wróblewski, T. Davenne, J. S. Berg, N. Bliss, Thomas Schwetz, R. Bayes, A. Alekou, Jeson Jacob, M. Fitton, Jakob Wehner, Graeme Burt, Piotr Cupiał, T. Patzak, Nicla Gelli, T. Li, Jaroslaw Pasternak, Pascal Sortais, Marco Laveder, A. Bross, Jürgen Pozimski, C. Densam, O. Caretta, A. Laing, P. Loveridge, C. Signorini, T. Melo Mendonca, Ivan Izotov, J. J. Gomez Y Cadenas, B. Lepers, R. Tsenov, P. Balint, A. Kosmicki, A. Brondi, V. L. Kravchuk, L. J. Jenner, J. Osborne, Elian Bouquerel, A. Ustrzycka, L. Scotto-Lavina, F. Osswald, V. G. Zorin, L. Latrasse, G. Prior, R. Wands, Vadim Skalyga, Edgecock, T. . r., Caretta, O., Davenne, T., Densam, C., Fitton, M., Kelliher, D., Loveridge, P., Machida, S., Prior, C., Rogers, C., Rooney, M., Thomason, J., Wilcox, D., Wildner, E., Efthymiopoulos, I., Garoby, R., Gilardoni, S., Hansen, C., Benedetto, E., Jensen, E., Kosmicki, A., Martini, M., Osborne, J., Prior, G., Stora, T., Melo Mendonca, T., Vlachoudis, V., Waaijer, C., Cupial, P., Chance, A., Longhin, A., Payet, J., Zito, M., Baussan, E., Bobeth, C., Bouquerel, E., Dracos, M., Gaudiot, G., Lepers, B., Osswald, F., Poussot, P., Vassilopoulos, N., Wurtz, J., Zeter, V., Bielski, J., Kozien, M., Lacny, L., Skoczen, B., Szybinski, B., Ustrzycka, A., Wroblewski, A., Marie Jeanne, M., Balint, P., Fourel, C., Giraud, J., Jacob, J., Lamy, T., Latrasse, L., Sortais, P., Thuillier, T., Mitrofanov, S., Loiselet, M., Keutgen, T. h., Delbar, T. h., Debray, F., Trophine, C., Veys, S., Daversin, C., Zorin, V., Izotov, I., Skalyga, V., Burt, G., Dexter, A. . c., Kravchuk, V. . l., Marchi, T., Cinausero, M., Gramegna, F., De Angelis, G., Prete, G., Collazuol, G., Laveder, M., Mazzocco, M., Mezzetto, M., Signorini, C., Vardaci, Emanuele, DI NITTO, Antonio, Brondi, Augusto, LA RANA, Giovanni, Migliozzi, P., Moro, RENATA EMILIA MARIA, Palladino, Vittorio, Gelli, N., Berkovits, D., Hass, M., Hirsh, T. . y., Schaumann, M., Stahl, A., Wehner, J., Bross, A., Kopp, J., Neuffer, D., Wands, R., Bayes, R., Laing, A., Soler, P., Agarwalla, S. . k., Cervera Villanueva, A., Donini, A., Ghosh, T., Gomez Cadenas, J. . j., Hernandez, P., Martin Albo, J., Mena, O., Burguet Castell, J., Agostino, L., Buizza Avanzini, M., Marafini, M., Patzak, T., Tonazzo, A., Duchesneau, D., Mosca, L., Bogomilov, M., Karadzhov, Y., Matev, R., Tsenov, R., Akhmedov, E., Blennow, M., Lindner, M., Schwetz, T., Fernandez Martinez, E., Maltoni, M., Menendez, J., Giunti, C., Gonzalez Garcia, M. . c., Salvado, J., Coloma, P., Huber, P., Li, T., Lopez Pavon, J., Orme, C., Pascoli, S., Meloni, D., Tang, J., Winter, W., Ohlsson, T., Zhang, H., Scotto Lavina, L., Terranova, F., Bonesini, M., Tortora, L., Alekou, A., Aslaninejad, M., Bontoiu, C., Kurup, A., Jenner, L. . j., Long, K., Pasternak, J., Pozimski, J., Back, J. . j., Harrison, P., Beard, K., Bogacz, A., Berg, J. . s., Stratakis, D., Witte, H., Snopok, P., Bliss, N., Cordwell, M., Moss, A., Pattalwar, S., and Apollonio, M.

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous), High intensity, lcsh:QC770-798, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Surfaces and Interfaces, Neutrino oscillation
Published
2016

12. Pre-equilibrium emission and its possible relation to α-clustering in nuclei

Author

Silvia Piantelli, F. Gramegna, Giovanni Casini, Giacomo Poggi, Giorgio Baiocco, M. Cinausero, Simone Valdré, V. L. Kravchuk, D. Fabris, Gabriele Pasquali, M. Bruno, A. Brondi, O. V. Fotina, Nicla Gelli, T. Marchi, Alessandro Olmi, Emanuele Vardaci, R. Moro, M. D'Agostino, Luca Morelli, Sandro Barlini, Maurizio Bini, S. Appannababu, M. Degerlier, B. Borderie, R. Bougault, A. Pagano, S. Pirrone and G. Politi, Marchi, T., Gramegna, F., Fabris, D., Degerlier, M., Fotina, O. V., Kravchuk, V. L., D’Agostino, M., Morelli, L., Appannababu, S., Baiocco, G., Barlini, S., Bini, M., Brondi, Augusto, Bruno, M., Casini, G., Cinausero, M., Gelli, N., Moro, RENATA EMILIA MARIA, Olmi, A., Pasquali, G., Piantelli, S., Poggi, G., Valdré, S., and Vardaci, Emanuele

Subjects
Physics, Light nucleus, Valence (chemistry), Particle separation, QC1-999, Neutron, Statistical physics, Atomic physics, Direct feedback, Nuclear Experiment, Cluster analysis, Excitation
Abstract

The study of nuclear states built on clusters bound by valence neutrons in their molecular configurations is a field of large interest. Clustering becomes particularly important at the dripline, where weakly bound systems prevail. For light nuclei, at an excitation energy close to the particle separation value, there are experimental evidences of such structure effects, but this is still not the case for heavier nuclear systems. Several theoretical efforts have been done in the development of pre-formation alpha-clustering models, but there is still a lack of experimental data capable to give a direct feedback. The search of alpha-cluster evidences in medium-mass systems is therefore a new challenge which can give new hints in this field of research. In the past we have studied the reactions 250, 192 and 130 MeV O-16 + Sn-116, observing a significant increase in the fast emitted alpha-particle yield. This effect was ascribed to the presence of pre-formed alpha-clusters in the 16O projectile nucleus. To further investigate these aspects in a model independent way, a new experimental campaign has been performed with the GARFIELD + RCo set up. Two different reaction entrance channels (O-16 and F-19) at the same beam velocity (16AMeV) have been measured, leading to the same Rb-81* compound nucleus. In this contribution we report on the preliminary light-charged particles emission spectra obtained in coincidence with evaporation residues and their comparison with the results obtained from a Hybrid Exciton Model calculation.

Published
2015

13. Design of a neutrino source based on beta beams

Author

M. Schaumann, T. Stora, François Debray, M. Hass, G. de Angelis, M. Mezzetto, Tommaso Marchi, Achim Stahl, C. Signorini, Elena Wildner, T. Lamy, J. Giraud, M. Mazzocco, T. Melo Mendonca, Elian Bouquerel, Camilla Juul Hansen, Jakob Wehner, M. Loiselet, Cécile Daversin, G. La Rana, Jeson Jacob, Th. Keutgen, S. Mitrofanov, L. Latrasse, M. Cinausero, Pascal Sortais, A. Di Nitto, C. Fourel, A. Chancé, Vadim Skalyga, Amos Dexter, V. Vlachoudis, V. G. Zorin, M. Marie-Jeanne, A. Brondi, V. Palladino, Graeme Burt, Ivan Izotov, Christophe Trophime, F. Gramegna, T. Y. Hirsh, E. Benedetto, Nicla Gelli, Emanuele Vardaci, Erk Jensen, P. Balint, V. L. Kravchuk, J. Payet, R. Moro, G. Prete, Stéphane Veys, D. Berkovits, Thomas Thuillier, G. Collazuol, Th. Delbar, European Organization for Nuclear Research (CERN), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI-G), Université Joseph Fourier - Grenoble 1 (UJF)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), UCL - SST/IRMP - Institut de recherche en mathématique et physique, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Wildner, E., Hansen, C., Benedetto, E., Jensen, E., Stora, T., Melo Mendonca, T., Vlachoudis, V., Bouquerel, E., Marie Jeanne, M., Balint, P., Fourel, C., Giraud, J., Jacob, J., Lamy, T., Latrasse, L., Sortais, P., Thuillier, T., Mitrofanov, S., Loiselet, M., Keutgen, T. h., Delbar, T. h., Debray, F., Trophime, C., Veys, S., Daversin, C., Zorin, V., Izotov, I., Skalyga, V., Chanc?, A., Payet, J., Burt, G., Dexter, A. ?. C., Kravchuk, V. ?. L., Marchi, T., Cinausero, M., Gramegna, F., De Angelis, G., Prete, G., Collazuol, G., Mezzetto, M., Vardaci, Emanuele, Di Nitto, A., Brondi, Augusto, LA RANA, Giovanni, Moro, R., Palladino, Vittorio, Gelli, N., Mazzocco, M., Signorini, C., Hirsh, T. ?. Y., Hass, M., Berkovits, D., Stahl, A., Schaumann, M., and Wehner, J.

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), Ion beam, 010308 nuclear & particles physics, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], Surfaces and Interfaces, Electron, Accelerators and Storage Rings, 7. Clean energy, 01 natural sciences, Collimated light, Linear particle accelerator, Nuclear physics, 0103 physical sciences, lcsh:QC770-798, Physics::Accelerator Physics, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Neutrino, 010306 general physics, Storage ring, Beam (structure)
Abstract

"Beta Beams" produce collimated pure electron (anti-) neutrino beams by accelerating beta active ions to high energies and having them decay in a race track shaped storage ring of 7 km circumference, the Decay Ring. EUROnu Beta Beams are based on CERN infrastructures and existing machines. Using existing machines may be an advantage for the cost evaluation, however, this choice is also constraining the Beta Beams. The isotope pair of choice for the Beta Beam is 6He and 18Ne. However before the EUROnu studies one of the needed isotopes, 18Ne, could not be produced in rates that satisfy the needs for physics reach of the Beta Beam. Therefore, studies of alternative beta emitters, 8Li and 8B, with properties interesting for a Beta Beam have been proposed and have been studied within EUROnu. These alternative isotopes could be produced by using a small storage ring, in which the beam traverses a target, creating the 8Li and 8B isotopes. This Production Ring, the injection Linac and the target system have been evaluated. Measurements of the cross-section of the reactions to produce the Beta Beam isotopes show interesting results. A device to collect the produced isotopes from the target has been developed and tested. However, the obtained rates of the 8Li and 8B, using the Production Ring for production of 8Li and 8B, is not yet, according to simulations, giving the rates of isotopes that would be needed. Therefore, a new method of producing the 18Ne isotope has been developed and tested giving good production rates. The baseline presented for the Beta Beam is therefore now to use the 6He and 18Ne isotopes for neutrino production. A 60 GHz ECRIS prototype, the first in the world, was developed and tested with contributions from EUROnu. The Beta Beam has to take into account the modifications of the injectors planned in view of LHC-upgrades. The Decay Ring lattices for the 8Li and 8B have been developed, the lattice for 6He and 18Ne has been optimized also to ensure the high intensity ion beam stability.

Published
2014
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14. Pre-equilibrium Emission and α-clustering in Nuclei

Author

M. Cinausero, M. Bruno, Giorgio Baiocco, Nicla Gelli, Giovanni Casini, A. Brondi, Gabriele Pasquali, V. L. Kravchuk, Sandro Barlini, Giacomo Poggi, Alessandro Olmi, Silvia Piantelli, S. Appannababu, Simone Valdré, M. Degerlier, T. Marchi, O. V. Fotina, Luca Morelli, R. Moro, Maurizio Bini, D. Fabris, F. Gramegna, Emanuele Vardaci, M. D'Agostino, Angela Gargano, Luigi Coraggio, Nunzio Itaco, Gramegna, F, Fabris, D, Marchi, T, Degerlier, M, Fotina, O. V, Kravchuk, V. L, D'Agostino, M, Morelli, L, Appannababu, S, Baiocco, G, Barlini, S, Bini, M, Brondi, Augusto, Bruno, M, Casini, G, Cinausero, M, Gelli, N, Moro, RENATA EMILIA MARIA, Olmi, A, Pasquali, G, Piantelli, S, Poggi, G, Valdrè, S, and Vardaci, Emanuele

Subjects
Physics, History, Valence (chemistry), Projectile, Coincidence, Charged particle, Computer Science Applications, Education, Nuclear physics, Neutron, Emission spectrum, Atomic physics, Nuclear Experiment, Cluster analysis, Excitation
Abstract

The study of nuclear states built on clusters bound by valence neutrons in their molecular configurations is a field of large interest, which is being renewed by the availability of exotic beams : clustering is, in fact, predicted to become very important at the drip-line, where weakly bound systems will prevail. Although for light nuclei at an excitation energy close to the particle separation value there are experimental evidences of such structure effects, this is still not the case for heavier nuclear systems. Many attempts have been done using preformation alpha clustering models, but there is still a lack of experimental data capable to give a direct feedback. In particular, searching for alpha clustering effects in medium mass systems is still a challenge, which can give new hints in this subject. In the past we have studied the reactions 250, 192 and 130 MeV O-16 + Sn-116, observing a significant increase in the fast emitted a-particle yield. This effect was ascribed to the presence of pre-formed a-clusters in the O-16 projectile nucleus. In order to investigate these aspects, in a model independent way, a new experimental campaign has been performed with the GARFIELD + RCo set up, to compare results from two different reactions : a double magic alpha-cluster (O-16) and a non-magic alpha-cluster projectile (F-19) at the same beam velocity (16AMeV) have been chosen, impinging respectively on Cu-65 and Ni-62 targets, thus leading to the same Rb-81* compound nucleus. The angular distributions and the light charged particles emission spectra in coincidence with evaporation residues have been measured and analyzed. The preliminary results of the data analysis and the main features of the theoretical model used for their interpretation are presented.

Published
2015
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15. Pre-equilibrium Particles Emission and Its Possible Relation to $\alpha $-clustering in Nuclei

Author

A. Brondi, Maurizio Bini, Simone Valdré, F. Gramegna, S. Appannababu, Emanuele Vardaci, Gabriele Pasquali, M. Bruno, M. D'Agostino, M. Degerlier, Giovanni Casini, Nicla Gelli, D. Fabris, Alessandro Olmi, M. Cinausero, O. V. Fotina, Luca Morelli, Giacomo Poggi, T. Marchi, V. L. Kravchuk, Sandro Barlini, Silvia Piantelli, R. Moro, Giorgio Baiocco, Fabris, D., Gramegna, F., Marchi, T., Degerlier, M., Fotina, O. V., Kravchuk, V. L., D'Agostino, M., Morelli, L., Appannababu, S., Baiocco, G., Barlini, S., Bini, M., Brondi, Augusto, Bruno, M., Casini, G., Cinausero, M., Gelli, N., Moro, RENATA EMILIA MARIA, Olmi, A., Pasquali, G., Piantelli, S., Poggi, G., Valdré, S., and Vardaci, Emanuele

Subjects
Nuclear physics, Physics, General Physics and Astronomy, Alpha (navigation)
Abstract

INFN, Sezione di Padova, 35131 Padova, Italy INFN, Laboratori Nazionali di Legnaro, 35020 Legnaro, Italy Nevsehir Haci Bektas Univ., Phys. Dep., Nevsehir, Turkey Skobeltsyn Inst. of Nucl. Phys., Lomonosov Moscow St. Univ., Moscow, Russia National Research Center “Kurchatov Institute”, Moscow, Russia Dip. di Fisica, Univ. di Bologna and INFN Bologna, 40126 Bologna, Italy Dip. di Fisica, Univ. di Firenze and INFN Firenze, 50019 Firenze, Italy Dip. di Fisica, Univ. di Napoli and INFN Napoli, 80138 Napoli, Italy Dip. di Fisica, Univ. di Caserta and INFN Napoli, 80138 Napoli, Italy

Published
2015
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