7 results on '"Cieplicka-Orynczak, Natalia"'
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2. Comparative study of four reactions at onset of pre-equilibrium emission
- Author
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Cicerchia Magda, Gramegna Fabiana, Fabris Daniela, Marchi Tommaso, Cinausero Marco, Mantovani Giorgia, Degerlier Meltem, Barlini Sandro, Bini Maurizio, Bruno Mauro, Caciolli Antonio, Camaiani Alberto, Casini Giovanni, Cieplicka-Orynczak Natalia, Collazuol Gianmaria, D’Agostino Michela, Dell’Aquila Daniele, Fornal Bogdan, Frosin Catalin, Gelli Nicla, Gruyer Diego, Kravchuk Vladimir, Leoni Silvia, Lombardo Ivano, Mengoni Daniele, Morelli Luca, Olmi Alessandro, Ottanelli Pietro, Pasquali Gabriele, Piantelli Silvia, Poggi Giacomo, and Valdré Simone
- Subjects
Physics ,QC1-999 - Abstract
The study of the emitted particles, comparing pre-equilibrium and thermal components, is a useful tool to examine the nuclear structure of emitters. Possible clustering effects, which may change the expected decay chain probability, could be highlighted on the competition between different reaction mechanisms. The NUCL-EX collaboration (INFN, Italy) has carried out an extensive research campaign on pre-equilibrium emission of light charged particles from hot nuclei. In this framework, the reactions 16O+30Si, 18O+28Si, 19F+27Al at 7 AMeV and 16O+30Si at 8 AMeV have been carried out using the GARFIELD+RCo array at Legnaro National Laboratories. Some anomalies in the α-particle emission channels have been evidenced in the measurement reported above, showing in an exclusive way the observed effects related to the entrance channels. The experimental results are compared to model prediction, for which the same filtering and complete event selection have been applied.
- Published
- 2019
- Full Text
- View/download PDF
3. The mutable nature of particle-core excitations with spin in the one-valence-proton nucleus ¹³³Sb
- Author
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Bocchi, Giovanni, Leoni, Silvia, Fornal, Bogdan, Col��, Gianluca, Bortignon, Pier Francesco, Bottoni, Simone, Bracco, Angela, Michelagnoli, Caterina, Bazzacco, Dino B., Blanc, Aur��lien, France, Gilles de, Jentschel, Michael, K��ster, Ulli, Mutti, Paolo, R��gis, Jean Marc, Simpson, Gary S., Soldner, Torsten, Ur, Calin Alexandru, Urban, Waldemar, Fraile, Luis Mario, Lozeva, Radomira, Belvito, B., Benzoni, Giovanna, Bruce, Alison M., Carroll, R., Cieplicka-Orynczak, Natalia, Crespi, Fabio Celso Luigi, Didierjean, Fran��ois, Jolie, Jan, Korten, Wolfram, Kr��ll, Thorsten, Nannini, Adriana, Napoli, Daniel R., Olaizola, Bruno, Paziy, V., Podoly��k, Zs., Regan, Patrick, Saed-Samii, N., Szpak, Bart��omiej, Lalkovski, Stefan, Mach, Henryk A., M��rginean, Nicolae Marius, Melon, Barbara, Mengoni, Daniele, Million, B��n��dicte, and Vedia, Victoria
- Subjects
Nuclear Theory ,Nuclear Experiment - Abstract
The ��-ray decay of excited states of the one-valence-proton nucleus ������Sb has been studied using cold-neutron induced fission of �������U and �������Pu targets, during the EXILL campaign at the ILL reactor in Grenoble. By using a highly efficient HPGe array, coincidences between ��-rays prompt with the fission event and those delayed up to several tens of microseconds were investigated, allowing to observe, for the first time, high-spin excited states above the 16.6 ��s isomer. Lifetimes analysis, performed by fast-timing techniques with LaBr���(Ce) scintillators, revealed a difference of almost two orders of magnitude in B(M1) strength for transitions between positive-parity medium-spin yrast states. The data are interpreted by a newly developed microscopic model which takes into account couplings between core excitations (both collective and non-collective) of the doubly magic nucleus ������Sn and the valence proton, using the Skyrme effective interaction in a consistent way. The results point to a fast change in the nature of particle-core excitations with increasing spin.
- Published
- 2022
4. Studying the Decay of 46Ti*: Does Different Partner Structure Influence the Competing Mechanisms and the Following Compound Nucleus Decay?
- Author
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Cicerchia, Magda, primary, Gramegna, Fabiana, additional, Fabris, Daniela, additional, Marchi, Tommaso, additional, Cinausero, Marco, additional, Mantovani, Giorgia, additional, Degerlier, Meltem, additional, Barlini, Sandro, additional, Bini, Maurizio, additional, Bruno, Mauro, additional, Caciolli, Antonio, additional, Camaiani, Alberto, additional, Casini, Giovanni, additional, Cieplicka-Orynczak, Natalia, additional, Collazuol, Gianmaria, additional, D’Agostino, Michela, additional, Dell’Aquila, Daniele, additional, Fornal, Bogdan, additional, Frosin, Catalin, additional, Gelli, Nicla, additional, Gruyer, Diego, additional, Kravchuk, Vladimir, additional, Leoni, Silvia, additional, Lombardo, Ivano, additional, Mengoni, Daniele, additional, Morelli, Luca, additional, Olmi, Alessandro, additional, Ottanelli, Pietro, additional, Pasquali, Gabriele, additional, Piantelli, Silvia, additional, Poggi, Giacomo, additional, and Valdré, Simone, additional
- Published
- 2020
- Full Text
- View/download PDF
5. Spectroscopy of particle-phonon coupled states in 133Sb by the cluster transfer reaction 132Sn on 7Li: an advanced test of nuclear interactions
- Author
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Leoni, Silvia, Benzoni, Giovanna, Bottoni, Simone, Bracco, Angela, Camera, Franco, Crespi, Fabio, Iskra, Lukasz, Porzio, Carlotta, Ziliani, Sara, Fornal, Bogdan, Bednarczyk, Piotr, Cieplicka-Orynczak, Natalia, Maj, Adam, Rusek, Krzysztof, Bazzacco, Dino, Mengoni, Daniele, Recchia, Francesco, Valiente-Dobon, Javier, Gramegna, Fabiana, Marchi, Tommaso, Raabe, Riccardo, Van Duppen, Piet, Sferrazza, Michele, Georgiev, Georgi, Reiter, Peter, Blazhev, A, Seidlitz, M, Warr, N, Kroell, Thorsten, Hartig, AL, Henrich, C, Homm, I, Surder, C, Rhee, HB, Gernhauser, Roman, Berner, C, Mucher, Dennis, Wimmer, Kathrin, Carpenter, Mike, Zhu, Shaofei, Janssens, Robert, Kowalska, Magna, Marginean, Nicu, Marginean, Raluca, Lica, Razvan, Clisu, Cristina, and Ur, Calin
- Subjects
Detectors and Experimental Techniques - Published
- 2019
6. Comparative study of four reactions at onset of pre-equilibrium emission.
- Author
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de Angelis, G., Corradi, L., Cicerchia, Magda, Gramegna, Fabiana, Fabris, Daniela, Marchi, Tommaso, Cinausero, Marco, Mantovani, Giorgia, Degerlier, Meltem, Barlini, Sandro, Bini, Maurizio, Bruno, Mauro, Caciolli, Antonio, Camaiani, Alberto, Casini, Giovanni, Cieplicka-Orynczak, Natalia, Collazuol, Gianmaria, D'Agostino, Michela, Dell'Aquila, Daniele, and Fornal, Bogdan
- Subjects
PRE-equilibrium (Chemistry) ,NUCLEAR structure ,PREDICTION models ,REACTION mechanisms (Chemistry) ,DECAY chains - Abstract
The study of the emitted particles, comparing pre-equilibrium and thermal components, is a useful tool to examine the nuclear structure of emitters. Possible clustering effects, which may change the expected decay chain probability, could be highlighted on the competition between different reaction mechanisms. The NUCL-EX collaboration (INFN, Italy) has carried out an extensive research campaign on pre-equilibrium emission of light charged particles from hot nuclei. In this framework, the reactions
16 O+30 Si,18 O+28 Si,19 F+27 Al at 7 AMeV and16 O+30 Si at 8 AMeV have been carried out using the GARFIELD+RCo array at Legnaro National Laboratories. Some anomalies in the α-particle emission channels have been evidenced in the measurement reported above, showing in an exclusive way the observed effects related to the entrance channels. The experimental results are compared to model prediction, for which the same filtering and complete event selection have been applied. [ABSTRACT FROM AUTHOR]- Published
- 2019
- Full Text
- View/download PDF
7. Order-to-chaos transition in warm rotating W-174 nuclei
- Author
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Vandone, V., Leoni, S., Bracco, A., Bottoni, S., Camera, F., Corsi, A., Crespi, F. C. L., Giaz, A., Nicolini, R., Benzoni, G., Blasi, N., Boiano, C., Brambilla, S., Million, B., Wieland, O., Bortolato, D., Calore, E., Gottardo, A., Napoli, D. R., Sahin, E., Dobon, J. J. Valiente, Bazzacco, D., Bellato, M., Farnea, E., Lunardi, S., Mengoni, D., Michelagnoli, C., Montanari, D., Recchia, F., Ur, C. A., Gadea, A., Hueyuek, T., Cieplicka, N., Maj, A., Kmiecik, M., Atac, A., Akkoyun, S., Kaskas, A., Ketenci, S., Nyberg, J., Soderstrom, P. A., Bracco, A, Nappi, E, Kmiecik, Maria -- 0000-0003-2019-2399, Huyuk, Tayfun -- 0000-0003-0597-9767, Montanari, Daniele -- 0000-0002-1980-7686, Calore, Enrico -- 0000-0002-2301-3838, Cieplicka-Orynczak, Natalia -- 0000-0002-8652-4504, Napoli, Daniel Ricardo -- 0000-0002-8154-6958, Camera, Franco -- 0000-0003-1731-4834, GOTTARDO, Andrea -- 0000-0002-0390-5767, Sahin, Eda -- 0000-0003-0683-5140, GIAZ, Agnese -- 0000-0002-2550-450X, Recchia, Francesco -- 0000-0002-8428-0112, Bottoni, Simone -- 0000-0003-2249-4825, benzoni, giovanna -- 0000-0002-7938-0338, Soderstrom, Par-Anders -- 0000-0002-9504-2814, and [Vandone, V. -- Leoni, S. -- Bracco, A. -- Bottoni, S. -- Camera, F. -- Corsi, A. -- Crespi, F. C. L. -- Giaz, A. -- Nicolini, R.] Univ Milan, I-20133 Milan, Italy -- [Vandone, V. -- Leoni, S. -- Bracco, A. -- Bottoni, S. -- Camera, F. -- Corsi, A. -- Crespi, F. C. L. -- Giaz, A. -- Nicolini, R. -- Benzoni, G. -- Blasi, N. -- Boiano, C. -- Brambilla, S. -- Million, B. -- Wieland, O.] INFN, Sez Milano, I-20133 Milan, Italy -- [Bortolato, D. -- Calore, E. -- Gottardo, A. -- Napoli, D. R. -- Sahin, E. -- Dobon, J. J. Valiente] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy -- [Bazzacco, D. -- Bellato, M. -- Farnea, E. -- Lunardi, S. -- Mengoni, D. -- Michelagnoli, C. -- Montanari, D. -- Recchia, F. -- Ur, C. A.] Univ Padua, Padua, Italy -- [Bazzacco, D. -- Bellato, M. -- Farnea, E. -- Lunardi, S. -- Mengoni, D. -- Michelagnoli, C. -- Montanari, D. -- Recchia, F. -- Ur, C. A.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy -- [Gadea, A. -- Hueyuek, T.] IFIC, Valencia, Spain -- [Cieplicka, N. -- Maj, A. -- Kmiecik, M.] PAN, Niewodniczanski Inst Nucl Phys, Krakow, Poland -- [Atac, A. -- Akkoyun, S. -- Kaskas, A.] Ankara Univ, Dept Phys, Fac Sci, TR-06100 Ankara, Turkey -- [Ketenci, S.] Nigde Univ, Dept Phys, Nidge, Turkey -- [Nyberg, J. -- Soderstrom, P. A.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden
- Abstract
178th Course of the International School of Physics Enrico Fermi on From the Big Bang to the Nucleosynthesis -- JUL 19-24, 2010 -- Varenna, ITALY, WOS: 000350800900023, The transition between order and chaos is studied in the warm rotating nucleus W-174 by gamma-spectroscopy, focusing on the conservation of selection rules of the K quantum number with the excitation energy. The W-174 nucleus was populated at high spins by the fusion-evaporation reaction of Ti-50 (at 217 MeV) on a Te-128 backed target. The experiment was performed in Legnaro National Laboratory using the AGATA Demonstrator HPGe-array (AD) coupled with an array of 27 BaF2 scintillator detectors. High-energy gamma-rays measured in the AD and in the scintillators array will be also analyzed to study the Giant Dipole Resonance (GDR) in the compound nucleus W-178. The discrimination between n and gamma in the AD detectors will be employed, following a procedure recently developed by Monte Carlo simulations and using digital Pulse Shape Analysis timing techniques., Ist Nazl Fisica Nucleare, INFN CNAF
- Published
- 2011
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