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1. Shape evolution in even-mass $^{98-104}$Zr isotopes via lifetime measurements using the $\gamma\gamma$-coincidence technique

Author

Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Görgen, A., Korten, W., Ljungvall, J., Clément, E., Dudouet, J., Lemasson, A., Rodríguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., Gerl, J., Georgiev, G., Ivanova, D. P., Jolie, J., Kim, Y. -H., Knafla, L., Korichi, A., Koseoglou, P., Labiche, M., Lalkovski, S., Lauritsen, T., Li, H. -J., Pedersen, L. G., Pietri, S., Ralet, D., Regis, J. M., Rudigier, M., Saha, S., Sahin, E., Siem, S., Singh, P., öderström, P. -A., Theisen, C., Tornyi, T., Vandebrouck, M., Witt, W., Zielińska, M., Barrientos, D., Bednarczyk, P., Benzoni, G., Boston, A. J., Boston, H. C., Bracco, A., Cederwall, B, Ciemala, M., de France, G., Domingo-Pardo, C., Eberth, J., Gadea, A., González, V., Gottardo, A., Harkness-Brennan, L. J., Hess, H., Judson, D. S., Jungclaus, A., Lenzi, S. M., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Napoli, D. R., Nyberg, J., Podolyak, Zs., Pullia, A., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M. D., Sanchis, E., Şenyiğit, M., Siciliano, M., Simpson, J., Sohler, D., Stezowski, O., Valiente-Dobón, J. J., and Verney, D.

Subjects
Nuclear Experiment
Abstract

The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first $2^+$ state and the increase in the transition strength B(E2; $2_1^\rightarrow 0_1^+$ going from $^{98}$Zr to $^{100}$Zr has been the first example of "quantum phase transition" in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the $\gamma\gamma$-coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in $^{98-104}$Zr carried out to extract reduced transition probabilities. The new lifetime values in $\gamma\gamma$-coincidence and $\gamma$-single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree-Fock-Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data.

Published
2024
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2. Spherical-oblate shape coexistence in $^{94}$Zr from a model-independent analysis

Author

Marchini, N., Rocchini, M., Zielinska, M., Nannini, A., Doherty, D. T., Gavrielov, N., Garrett, P. E., Hadynska-Klek, K., Goasduff, A., Testov, D., Bakes, S. D., Bazzacco, D., Benzoni, G., Berry, T., Brugnara, D., Camera, F., Catford, W. N., Chiari, M., Galtarossa, F., Gelli, N., Gottardo, A., Gozzelino, A., Illana, A., Keatings, J., Mengoni, D., Morrison, L., Napoli, D. R., Ottanelli, M., Ottanelli, P., Pasqualato, G., Recchia, F., Riccetto, S., Scheck, M., Siciliano, M., Dobon, J. J. Valiente, and Zanon, I.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Low-lying states of $^{94}$Zr were investigated via low-energy multi-step Coulomb excitation. From the measured $\gamma$-ray yields, 13 reduced transition probabilities between low-spin states were determined, together with the spectroscopic quadrupole moments of the $2_{1,2}^+$ states. Based on this information, for the first time in the Zr isotopic chain, the shapes of the $0_{1,2}^+$ states including their deformation softness were inferred in a model-independent way using the quadrupole sum rules approach. The ground state of $^{94}$Zr possesses a rather diffuse shape associated with a spherical configuration, while the $0_2^+$ state is oblate and more strongly deformed. The observed features of shape coexistence in $^{94}$Zr are in agreement with Monte-Carlo shell-model predictions, and the present results are vital to refine the IBM-CM description of the Zr isotopes around $A\approx 100$ in terms of an intertwined quantum phase transition., Comment: 6 pages, 3 figures

Published
2024

3. High-precision spectroscopy of $^{20}$O benchmarking ab-initio calculations in light nuclei

Author

Zanon, I., Clément, E., Goasduff, A., Menéndez, J., Miyagi, T., Assié, M., Ciemała, M., Flavigny, F., Lemasson, A., Matta, A., Ramos, D., Rejmund, M., Achouri, L., Ackermann, D., Barrientos, D., Beaumel, D., Benzoni, G., Boston, A. J., Boston, H. C., Bottoni, S., Bracco, A., Brugnara, D., de France, G., de Sereville, N., Delaunay, F., Desesquelles, P., Didierjean, F., Domingo-Prato, C., Dudouet, J., Eberth, J., Fernández, D., Fougères, C., Gadea, A., Galtarossa, F., Girard-Alcindor, V., Gonzales, V., Gottardo, A., Hammache, F., Harkness-Brennan, L. J., Hess, H., Judson, D. S, Jungclaus, A., Kaşkaş, A., Kim, Y. H., Kuşoğlu, A., Labiche, M., Leblond, S., Lenain, C., Lenzi, S. M., Leoni, S., Li, H., Ljungvall, J., Lois-Fuentes, J., Lopez-Martens, A., Maj, A., Menegazzo, R., Mengoni, D., Michelagnoli, C., Million, B., Napoli, D. R., Nyberg, J., Pasqualato, G., Podolyak, Zs., Pullia, A., Quintana, B., Recchia, F., Regueira-Castro, D., Reiter, P., Rezynkina, K., Rojo, J. S., Salsac, M. D., Sanchis, E., Şenyiğit, M., Siciliano, M., Sohler, D., Stezowski, O., Theisen, Ch., Utepov, A., Valiente-Dobón, J. J., Verney, D., and Zielinska, M.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The excited states of unstable $^{20}$O were investigated via $\gamma$-ray spectroscopy following the $^{19}$O$(d,p)^{20}$O reaction at 8 $A$MeV. By exploiting the Doppler Shift Attenuation Method, the lifetime of the 2$^+_2$ and 3$^+_1$ states were firmly established. From the $\gamma$-ray branching and E2/M1 mixing ratios for transitions deexciting the 2$^+_2$ and 3$^+_1$ states, the B(E2) and B(M1) were determined. Various chiral effective field theory Hamiltonians, describing the nuclear properties beyond ground states, along with a standard USDB interaction, were compared with the experimentally obtained data. Such a comparison for a large set of $\gamma$-ray transition probabilities with the valence space in medium similarity renormalization group ab-initio calculations was performed for the first time in a nucleus far from stability. It was shown that the ab-initio approaches using chiral EFT forces are challenged by detailed high-precision spectroscopic properties of nuclei. The reduced transition probabilities were found to be a very constraining test of the performance of the ab-initio models., Comment: Supplemental Material available

Published
2024
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4. Fission of 215Fr studied with gamma spectroscopic methods

Author

Miernik, K., Korgul, A., Poklepa, W., Wilson, J. N., Charles, G., Czajkowski, S., Czyż, P., Fijałkowska, A., Fraile, L. M., Garczyński, P., Hauschild, K., Hiver, C., Kurtukian-Nieto, T., Lebois, M., Llanos, M., Lopez-Martens, A., Treasa, K. M. Deby, Ljungvall, J., Matea, I., Mielczarek, J., Murias, J. R., Pasqualato, G., Skruch, A., Solak, K., Stoyachev, K., and Tsekhanovich, I.

Subjects
Nuclear Experiment
Abstract

Background: Asymmetric fission is known to occur in two regions, the actinides and sub-lead, and is dependent on the fissioning system excitation energy. Experimental evidence in the sub-lead region show that this mode is surprisingly persistent with increasing energy and its origin is not fully understood. Purpose: To experimentally study the fusion-fission reaction of $^{215}$Fr at moderate excitation energy and determine previously unknown independent fission yields and other properties. Method: The compound nucleus was formed in the reaction $^{18}$O + $^{197}$Au. The prompt gamma-rays emitted during the reaction were measured with the high efficiency and high granularity $\nu$-ball2 spectrometer. Independent fission yields of even-even nuclei were determined by detecting triple-gamma cascades in the fission fragments. Results: The observed yields, although dominated by a symmetric peak, show maxima for heavy fragment of $Z \approx 54-56$, which is consistent with the known results in the actinide region but unexpected for the nuclide of interest, and at the studied excitation energy. Conclusions: The mode of asymmetric fission is present even at relatively high excitation energies in the system studied. This observation matches experimental findings in the sub-lead region, contrary to the actinides, and so far there is no well-developed explanation of this phenomenon.

Published
2023
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6. Shape evolution in even-mass 98-104γγZr isotopes via lifetime measurements using the 98-104γγ-coincidence technique

Author

Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Görgen, A., Korten, W., Ljungvall, J., Clément, E., Dudouet, J., Lemasson, A., Rodríguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., Gerl, J., Georgiev, G., Ivanova, D. P., Jolie, J., Kim, Y.-H., Knafla, L., Korichi, A., Koseoglou, P., Labiche, M., Lalkovski, S., Lauritsen, T., Li, H.-J., Pedersen, L. G., Pietri, S., Ralet, D., Regis, J. M., Rudigier, M., Saha, S., Sahin, E., Siem, S., Singh, P., Söderström, P.-A., Theisen, C., Tornyi, T., Vandebrouck, M., Witt, W., Zielińska, M., Barrientos, D., Bednarczyk, P., Benzoni, G., Boston, A. J., Boston, H. C., Bracco, A., Cederwall, B., Ciemała, M., de France, G., Domingo-Pardo, C., Eberth, J., Gadea, A., González, V., Gottardo, A., Harkness-Brennan, L. J., Hess, H., Judson, D. S., Jungclaus, A., Lenzi, S. M., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Napoli, D. R., Nyberg, J., Podolyák, Zs., Pullia, A., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M. D., Sanchis, E., Şenyiğit, M., Siciliano, M., Simpson, J., Sohler, D., Stezowski, O., Valiente-Dobón, J. J., and Verney, D.

Published
2023
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7. High resolution $\gamma$-ray spectroscopy using GALILEO array

Author

Testov, D., Valiente-Dobón, J. J., Mengoni, D., Recchia, F., Goasduff, A., Boso, A., Lenzi, S., de Angelis, G., Bakes, S., Boiano, C., Cederwall, B., Colucci, G., Cicerchia, M., Čolović, P., Didierjean, F., Doncel, M., {n}as, J. A. Due\, Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Isocrate, R., Jaworski, G., John, P. R., Liu, H., Lunardi, S., Menegazzo, R., Mentana, A., Modamio, V., Nannini, A., Napoli, D. R., Palacz, M., Pasqualato, G., Rocchini, M., Riccetto, S., Saygi, B., Sahin, E., Siciliano, M., Sobolev, Yu., and Szilner, S.

Subjects
Nuclear Experiment
Abstract

The GALILEO $\gamma$-ray spectrometer has been constructed at the Legnaro National Laboratory of INFN (LNL-INFN). It can be coupled to advanced ancillary devices which allows nuclear structure studies employing the variety of in-beam $\gamma$-ray spectroscopy methods. Such studies benefit from reactions induced by the intense stable beams delivered by the Tandem-ALPI-PIAVE accelerator complex and by the radioactive beams which will be provided by the SPES facility. In this paper we outline two experiments performed within the experimental campaign at GALILEO coupled to the EUCLIDES Si-ball and the Neutron Wall array. The first one was aimed at spectroscopic studies in A=31 mirror nuclei and the second one at measurements of lifetimes of excited states in nuclei in the vicinity of $^{100}$Sn., Comment: The IX International Symposium on EXOtic Nuclei (EXON-2018)

Published
2019

8. The GALILEO [formula omitted]-ray array at the Legnaro National Laboratories

Author

Goasduff, A., Mengoni, D., Recchia, F., Valiente-Dobón, J.J., Menegazzo, R., Benzoni, G., Barrientos, D., Bellato, M., Bez, N., Biasotto, M., Blasi, N., Boiano, C., Boso, A., Bottoni, S., Bracco, A., Brambilla, S., Brugnara, D., Camera, F., Capra, S., Capsoni, A., Cocconi, P., Coelli, S., Cortés, M.L., Crespi, F.C.L., de Angelis, G., Egea, F.J., Fanin, C., Fantinel, S., Gadea, A., Gamba, E.R., Gambalonga, A., Gesmundo, C., Gosta, G., Gottardo, A., Gozzelino, A., Gregor, E.T., Gulmini, M., Ha, J., Hadyńska-Klȩk, K., Illana, A., Isocrate, R., Jaworski, G., John, P.R., Lenzi, S.M., Leoni, S., Lunardi, S., Magalini, M., Marchini, N., Million, B., Modamio, V., Nannini, A., Napoli, D.R., Pasqualato, G., Pellumaj, J., Pérez-Vidal, R.M., Pigliapoco, S., Polettini, M., Porzio, C., Pullia, A., Ramina, L., Rampazzo, G., Rampazzo, M., Rebeschini, M., Rezynkina, K., Rocchini, M., Romanato, M., Rosso, D., Saltarelli, A., Scarcioffolo, M., Siciliano, M., Testov, D.A., Tomasella, D., Tomasi, F., Toniolo, N., Ur, C.A., Ventura, S., Veronese, F., Viscione, E., Volpe, V., Wieland, O., Zanon, I., Ziliani, S., Zhang, G., and Bazzacco, D.

Published
2021
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9. Lifetime measurements using a plunger device and the EUCLIDES Si array at the GALILEO [formula omitted]-ray spectrometer

Author

Bradbury, J., Testov, D., Bakes, S., Goasduff, A., Mengoni, D., Valiente-Dobón, J.J., de Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, B., Cicerchia, M., Colucci, G., Čolović, P., Didierjean, F., Doncel, M., Dueñas, J.A., Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Jaworski, G., John, P.R., Liu, H., Lenzi, S., Lunardi, S., Menegazzo, R., Mentana, A., Müller-Gatermann, C., Napoli, D.R., Pasqualato, G., Recchia, F., Rocchini, M., Riccetto, S., Saygi, B., Siciliano, M., Sobolev, Yu., and Szilner, S.

Published
2020
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10. High-Precision Spectroscopy of O20 Benchmarking Ab Initio Calculations in Light Nuclei

Author

Zanon, I., primary, Clément, E., additional, Goasduff, A., additional, Menéndez, J., additional, Miyagi, T., additional, Assié, M., additional, Ciemała, M., additional, Flavigny, F., additional, Lemasson, A., additional, Matta, A., additional, Ramos, D., additional, Rejmund, M., additional, Achouri, L., additional, Ackermann, D., additional, Barrientos, D., additional, Beaumel, D., additional, Benzoni, G., additional, Boston, A. J., additional, Boston, H. C., additional, Bottoni, S., additional, Bracco, A., additional, Brugnara, D., additional, de France, G., additional, de Sereville, N., additional, Delaunay, F., additional, Desesquelles, P., additional, Didierjean, F., additional, Domingo-Prato, C., additional, Dudouet, J., additional, Eberth, J., additional, Fernández, D., additional, Fougères, C., additional, Gadea, A., additional, Galtarossa, F., additional, Girard-Alcindor, V., additional, Gonzales, V., additional, Gottardo, A., additional, Hammache, F., additional, Harkness-Brennan, L. J., additional, Hess, H., additional, Judson, D. S., additional, Jungclaus, A., additional, Kaşkaş, A., additional, Kim, Y. H., additional, Kuşoğlu, A., additional, Labiche, M., additional, Leblond, S., additional, Lenain, C., additional, Lenzi, S. M., additional, Leoni, S., additional, Li, H., additional, Ljungvall, J., additional, Lois-Fuentes, J., additional, Lopez-Martens, A., additional, Maj, A., additional, Menegazzo, R., additional, Mengoni, D., additional, Michelagnoli, C., additional, Million, B., additional, Napoli, D. R., additional, Nyberg, J., additional, Pasqualato, G., additional, Podolyak, Zs., additional, Pullia, A., additional, Quintana, B., additional, Recchia, F., additional, Regueira-Castro, D., additional, Reiter, P., additional, Rezynkina, K., additional, Rojo, J. S., additional, Salsac, M. D., additional, Sanchis, E., additional, Şenyiğit, M., additional, Siciliano, M., additional, Sohler, D., additional, Stezowski, O., additional, Theisen, Ch., additional, Utepov, A., additional, Valiente-Dobón, J. J., additional, Verney, D., additional, and Zielinska, M., additional

Published
2023
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11. Fission of Fr215 studied with γ spectroscopic methods

Author

Miernik, K., primary, Korgul, A., additional, Poklepa, W., additional, Wilson, J. N., additional, Charles, G., additional, Czajkowski, S., additional, Czyż, P., additional, Fijałkowska, A., additional, Fraile, L. M., additional, Garczyński, P., additional, Hauschild, K., additional, Hiver, C., additional, Kurtukian-Nieto, T., additional, Lebois, M., additional, Llanos, M., additional, Lopez-Martens, A., additional, Treasa, K. M. Deby, additional, Ljungvall, J., additional, Matea, I., additional, Mielczarek, J., additional, Murias, J. R., additional, Pasqualato, G., additional, Skruch, A., additional, Solak, K., additional, Stoyachev, K., additional, and Tsekhanovich, I., additional

Published
2023
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12. Shape evolution in even-mass $$^{98-104}$$Zr isotopes via lifetime measurements using the $$\gamma \gamma $$-coincidence technique

Author

Pasqualato, G., primary, Ansari, S., additional, Heines, J. S., additional, Modamio, V., additional, Görgen, A., additional, Korten, W., additional, Ljungvall, J., additional, Clément, E., additional, Dudouet, J., additional, Lemasson, A., additional, Rodríguez, T. R., additional, Allmond, J. M., additional, Arici, T., additional, Beckmann, K. S., additional, Bruce, A. M., additional, Doherty, D., additional, Esmaylzadeh, A., additional, Gamba, E. R., additional, Gerhard, L., additional, Gerl, J., additional, Georgiev, G., additional, Ivanova, D. P., additional, Jolie, J., additional, Kim, Y.-H., additional, Knafla, L., additional, Korichi, A., additional, Koseoglou, P., additional, Labiche, M., additional, Lalkovski, S., additional, Lauritsen, T., additional, Li, H.-J., additional, Pedersen, L. G., additional, Pietri, S., additional, Ralet, D., additional, Regis, J. M., additional, Rudigier, M., additional, Saha, S., additional, Sahin, E., additional, Siem, S., additional, Singh, P., additional, Söderström, P.-A., additional, Theisen, C., additional, Tornyi, T., additional, Vandebrouck, M., additional, Witt, W., additional, Zielińska, M., additional, Barrientos, D., additional, Bednarczyk, P., additional, Benzoni, G., additional, Boston, A. J., additional, Boston, H. C., additional, Bracco, A., additional, Cederwall, B., additional, Ciemała, M., additional, de France, G., additional, Domingo-Pardo, C., additional, Eberth, J., additional, Gadea, A., additional, González, V., additional, Gottardo, A., additional, Harkness-Brennan, L. J., additional, Hess, H., additional, Judson, D. S., additional, Jungclaus, A., additional, Lenzi, S. M., additional, Leoni, S., additional, Menegazzo, R., additional, Mengoni, D., additional, Michelagnoli, C., additional, Napoli, D. R., additional, Nyberg, J., additional, Podolyák, Zs., additional, Pullia, A., additional, Recchia, F., additional, Reiter, P., additional, Rezynkina, K., additional, Salsac, M. D., additional, Sanchis, E., additional, Şenyiğit, M., additional, Siciliano, M., additional, Simpson, J., additional, Sohler, D., additional, Stezowski, O., additional, Valiente-Dobón, J. J., additional, and Verney, D., additional

Published
2023
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13. An alternative viewpoint on the nuclear structure towards 100Sn: Lifetime measurements in 105Sn

Author

Pasqualato, G., primary, Gottardo, A., additional, Mengoni, D., additional, Goasduff, A., additional, Valiente-Dobón, J.J., additional, Nowacki, F., additional, Péru, S., additional, Pillet, N., additional, de Angelis, G., additional, Bakes, S.D., additional, Bayram, T., additional, Bazzacco, D., additional, Benzoni, G., additional, Brugnara, D., additional, Cicerchia, M., additional, Colovic, P., additional, Cortés, M.L., additional, Gadea, A., additional, Galtarossa, F., additional, Górska, M., additional, Gozzelino, A., additional, Gregor, E., additional, Hubbard, N., additional, Illana, A., additional, Jurado, M., additional, Lenzi, S.M., additional, Mantovani, G., additional, Marchi, T., additional, Menegazzo, R., additional, Montaner-Pizá, A., additional, Napoli, D.R., additional, Recchia, F., additional, Siciliano, M., additional, Testov, D., additional, Szilner, S., additional, and Zanon, I., additional

Published
2023
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14. Search for the γ decay of the narrow near-threshold proton resonance in 11B

Author

Bottoni, S., Corbari, G., Leoni, S., Fornal, B., Goasduff, A., Capra, S., Mengoni, D., Albanese, E., Ziliani, S., Benzoni, G., Sánchez-Benítez, A.M., Bracco, A., Brugnara, D., Camera, F., Ciemała, M., Cieplicka-Oryńczak, N., Crespi, F.C.L., Dueñas, J.A., Gadea, A., Galtarossa, F., Gamba, E., Gottardo, A., Gozzelino, A., Ha, J., Iskra, Ł.W., Marchi, T., Menegazzo, R., Million, B., Napoli, D.R., Pasqualato, G., Pellumaj, J., Pérez-Vidal, R.M., Pigliapoco, S., Polettini, M., Porzio, C., Recchia, F., Rezynkina, K., Valiente-Dóbon, J.J., Wieland, O., Zanon, I., and Zhang, G.

Published
2024
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15. Shape evolution in even-mass 98-104Zr isotopes via lifetime measurements using the γ γ-coincidence technique

Author

Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Gorgen, A., Korten, W., Ljungvall, J., Clement, E., Dudouet, J., Lemasson, A., Rodriguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., Gerl, J., Georgiev, G., Ivanova, D. P., Jolie, J., Kim, Y. -H, Knafla, L., Korichi, A., Koseoglou, P., Labiche, M., Lalkovski, S., Lauritsen, T., Li, H. -J, Pedersen, L. G., Pietri, S., Ralet, D., Regis, J. M., Rudigier, M., Saha, S., Sahin, E., Siem, S., Singh, P., Soederstroem, P-A, Theisen, C., Tornyi, T., Vandebrouck, M., Witt, W., Zielinska, M., Barrientos, D., Bednarczyk, P., Benzoni, G., Boston, A. J., Boston, H. C., Bracco, A., Cederwall, B., Ciemala, M., de France, G., Domingo-Pardo, C., Eberth, J., Gadea, A., Gonzalez, V., Gottardo, A., Harkness-Brennan, L. J., Hess, H., Judson, D. S., Jungclaus, A., Lenzi, S. M., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Napoli, D. R., Nyberg, Johan, Podolyak, Zs., Pullia, A., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M. D., Sanchis, E., Senyigit, M., Siciliano, M., Simpson, J., Sohler, D., Stezowski, O., Valiente-Dobon, J. J., Verney, D., Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Gorgen, A., Korten, W., Ljungvall, J., Clement, E., Dudouet, J., Lemasson, A., Rodriguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., Gerl, J., Georgiev, G., Ivanova, D. P., Jolie, J., Kim, Y. -H, Knafla, L., Korichi, A., Koseoglou, P., Labiche, M., Lalkovski, S., Lauritsen, T., Li, H. -J, Pedersen, L. G., Pietri, S., Ralet, D., Regis, J. M., Rudigier, M., Saha, S., Sahin, E., Siem, S., Singh, P., Soederstroem, P-A, Theisen, C., Tornyi, T., Vandebrouck, M., Witt, W., Zielinska, M., Barrientos, D., Bednarczyk, P., Benzoni, G., Boston, A. J., Boston, H. C., Bracco, A., Cederwall, B., Ciemala, M., de France, G., Domingo-Pardo, C., Eberth, J., Gadea, A., Gonzalez, V., Gottardo, A., Harkness-Brennan, L. J., Hess, H., Judson, D. S., Jungclaus, A., Lenzi, S. M., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Napoli, D. R., Nyberg, Johan, Podolyak, Zs., Pullia, A., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M. D., Sanchis, E., Senyigit, M., Siciliano, M., Simpson, J., Sohler, D., Stezowski, O., Valiente-Dobon, J. J., and Verney, D.

Abstract

The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first 2(+) state and the increase in the transition strength B(E2; 2(1)(+) -> 0(1)(+) ) going from Zr-98 to Zr-100 has been the first example of "quantum phase transition" in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the gamma gamma-coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in Zr98-104 carried out to extract reduced transition probabilities. The new lifetime values in gamma gamma-coincidence and gamma-single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree-Fock- Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data.

Published
2023
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16. Shape evolution in even-mass 98-104Zr isotopes via lifetime measurements using the γγ-coincidence technique.

Author

Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Görgen, A., Korten, W., Ljungvall, J., Clément, E., Dudouet, J., Lemasson, A., Rodríguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., and Gerl, J.

Abstract

The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first 2 + state and the increase in the transition strength B(E2; 2 1 + → 0 1 +) going from 98 Zr to 100 Zr has been the first example of “quantum phase transition” in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the γ γ -coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in 98 - 104 Zr carried out to extract reduced transition probabilities. The new lifetime values in γ γ -coincidence and γ -single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree–Fock–Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data. [ABSTRACT FROM AUTHOR]

Published
2023
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17. Fusion of 12C + 24Mg at extreme sub-barrier energies

Author

Montagnoli, G, primary, Stefanini, A M, additional, Jiang, C L, additional, Hagino, K, additional, Niola, F, additional, Brugnara, D, additional, Čolović, P, additional, Colucci, G, additional, Corradi, L, additional, Depalo, R, additional, Fioretto, E, additional, Goasduff, A, additional, Pasqualato, G, additional, Scarlassara, F, additional, Szilner, S, additional, and Zanon, I, additional

Published
2022
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20. GALTRACE: A highly segmented silicon detector array for charged particle spectroscopy and discrimination

Author

Capra, S., Ziliani, S., Goasduff, A., Leoni, S., Pullia, A., Benzoni, G., Bottoni, S., Camera, F., Crespi, F. C. L., Gamba, E., Iskra, L., Million, B., Polettini, M., Wieland, O., Fornal, B., Cieplicka-Orynczak, N., Ciemala, M., Duenas, J., Gadea, A., Mengoni, D., Brugnara, D., Cortes, L., Gottardo, A., Gregor, E., Pasqualato, G., Recchia, F., Dobon, J. J. V., Pellumaj, J., Zanon, I., Zhang, G., and Galtarossa, F.

Published
2022

21. NEDA—NEutron Detector Array

Author

Valiente-Dobón, J. J., Jaworski, G., Goasduff, A., Egea, F. J., Modamio, V., Hüyük, T., Triossi, A., Jastrząb, M., Söderström, P. A., Di Nitto, A., de Angelis, G., de France, G., Erduran, N., Gadea, A., Moszyński, M., Nyberg, J., Palacz, M., Wadsworth, R., Aliaga, R., Aufranc, C., Bézard, M., Baulieu, G., Bissiato, E., Boujrad, A., Burrows, I., Carturan, S., Cocconi, P., Colucci, G., Conventi, D., Cordwell, M., Coudert, S., Deltoro, J. M., Ducroux, L., Dupasquier, T., Ertürk, S., Fabian, X., González, V., Grant, A., Hadyńska-Klęk, K., Illana, A., Jurado-Gomez, M. L., Kogimtzis, M., Lazarus, I., Legeard, L., Ljungvall, J., Pasqualato, G., Pérez-Vidal, R. M., Raggio, A., Ralet, D., Redon, N., Saillant, F., Sayğı, B., Sanchis, E., Scarcioffolo, M., Siciliano, M., Testov, D., Stezowski, O., Tripon, M., Zanon, I., Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Valiente-Dobón, J.J., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Jaworski, G., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Goasduff, A., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy, Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova, Padova, Italy -- Egea, F.J., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy, Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova, Padova, Italy, Instituto de Física Corpuscular, CSIC-Universidad deValencia, E-46980 Paterna (Valencia), Spain -- Modamio, V., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy, Department of Physics, University of Oslo, Oslo, N-0316, Norway -- Hüyük, T., Instituto de Física Corpuscular, CSIC-Universidad deValencia, E-46980 Paterna (Valencia), Spain -- Triossi, A., Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova, Padova, Italy, CERN, Switzerland -- Jastrzab, M., Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland -- Söderström, P.A., Extreme Light Infrastructureuclear Physics (ELI-NP), 077125 Bucharest-Magurele, Romania -- Di Nitto, A., Helmholtz Institute Mainz and GSI Helmholtzzentrum für Schwerionenforschund, Darmstadt, Germany -- de Angelis, G., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- de France, G., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Erduran, N., Faculty of Engineering and Natural Sciences, Istanbul Sabahattin Zaim University, Istanbul, 34303, Turkey -- Gadea, A., Instituto de Física Corpuscular, CSIC-Universidad deValencia, E-46980 Paterna (Valencia), Spain -- Moszynski, M., National Centre for Nuclear Research, 05-400 Otwock-Swierk, Poland -- Nyberg, J., Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden -- Palacz, M., Heavy Ion Laboratory, University of Warsaw, Warsaw, 02-093, Poland -- Wadsworth, R., Department of Physics, University of York, Heslington, YO10 5DD York, United Kingdom -- Aliaga, R., Instituto de Física Corpuscular, CSIC-Universidad deValencia, E-46980 Paterna (Valencia), Spain -- Aufranc, C., Université Lyon 1, CNRS, IN2P3, IPN Lyon, Villeurbanne, F-69622, France -- Bézard, M., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Baulieu, G., Université Lyon 1, CNRS, IN2P3, IPN Lyon, Villeurbanne, F-69622, France -- Bissiato, E., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Boujrad, A., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Burrows, I., STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, United Kingdom -- Carturan, S., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy, Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy -- Cocconi, P., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Colucci, G., Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova, Padova, Italy -- Conventi, D., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Cordwell, M., STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, United Kingdom -- Coudert, S., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Deltoro, J.M., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Ducroux, L., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Dupasquier, T., Université Lyon 1, CNRS, IN2P3, IPN Lyon, Villeurbanne, F-69622, France -- Ertürk, S., Department of Physics, Nigde Omer Halisdemir University, Nigde, 51240, Turkey -- Fabian, X., Université Lyon 1, CNRS, IN2P3, IPN Lyon, Villeurbanne, F-69622, France -- González, V., Departamento de Ingeniería Electrónica, Universidad de Valencia. Avda. Universidad s/n, Burjassot, 46100, Spain -- Grant, A., STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, United Kingdom -- Hadynska-Klek, K., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy, Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom -- Illana, A., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Jurado-Gomez, M.L., Instituto de Física Corpuscular, CSIC-Universidad deValencia, E-46980 Paterna (Valencia), Spain -- Kogimtzis, M., STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, United Kingdom -- Lazarus, I., STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, United Kingdom -- Legeard, L., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Ljungvall, J., CSNSM, CNRS, IN2P3, Université Paris-Sud, Orsay, F-91405, France -- Pasqualato, G., Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova, Padova, Italy -- Pérez-Vidal, R.M., Instituto de Física Corpuscular, CSIC-Universidad deValencia, E-46980 Paterna (Valencia), Spain -- Raggio, A., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Ralet, D., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Redon, N., Université Lyon 1, CNRS, IN2P3, IPN Lyon, Villeurbanne, F-69622, France -- Saillant, F., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Sayğı, B., Department of Physics, Faculty of Science, University of Ege, Izmir, 35100, Turkey -- Sanchis, E., Departamento de Ingeniería Electrónica, Universidad de Valencia. Avda. Universidad s/n, Burjassot, 46100, Spain -- Scarcioffolo, M., Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova, Padova, Italy -- Siciliano, M., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy -- Testov, D., Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova, Padova, Italy -- Stezowski, O., Université Lyon 1, CNRS, IN2P3, IPN Lyon, Villeurbanne, F-69622, France -- Tripon, M., GANIL, CEA/DRF-CNRS/IN2P3, Bvd. Henri Becquerel, Caen, 14076, France -- Zanon, I., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy, 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), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), 0-Belirlenecek, Ege Üniversitesi, Valiente-Dobón, J. J., Jaworski, G., Goasduff, A., Egea, F. J., Modamio, V., Hüyük, T., Triossi, A., Jastrząb, M., Söderström, P. A., Di Nitto, A., de Angelis, G., de France, G., Erduran, N., Gadea, A., Moszyński, M., Nyberg, J., Palacz, M., Wadsworth, R., Aliaga, R., Aufranc, C., Bézard, M., Baulieu, G., Bissiato, E., Boujrad, A., Burrows, I., Carturan, S., Cocconi, P., Colucci, G., Conventi, D., Cordwell, M., Coudert, S., Deltoro, J. M., Ducroux, L., Dupasquier, T., Ertürk, S., Fabian, X., González, V., Grant, A., Hadyńska-Klęk, K., Illana, A., Jurado-Gomez, M. L., Kogimtzis, M., Lazarus, I., Legeard, L., Ljungvall, J., Pasqualato, G., Pérez-Vidal, R. M., Raggio, A., Ralet, D., Redon, N., Saillant, F., Sayğı, B., Sanchis, E., Scarcioffolo, M., Siciliano, M., Testov, D., Stezowski, O., Tripon, M., and Zanon, I.

Subjects
Nuclear and High Energy Physics, Neutron-gamma discrimination, Liquid scintillator, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Neutron detector, Digital electronic, NEDA, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 16. Peace & justice, Digital electronics, 01 natural sciences, 0103 physical sciences, Nuclear structure, Gamma-ray spectroscopy, 010306 general physics, Nuclear Experiment, Instrumentation, Nuclear and High Energy Physic
Abstract

Millan, Vicente Gonzalez/0000-0001-6014-2586; Huyuk, Tayfun/0000-0003-0597-9767; GOASDUFF, Alain/0000-0003-3453-3297; carturan, sara maria/0000-0002-6702-2867; Sison, Andres Illana/0000-0003-0274-3388; SAYGI, BAHADIR/0000-0001-5406-506X; Jaworski, Grzegorz/0000-0003-2241-0329; Aliaga, Ramon J./0000-0002-2513-7711; Vidal, Rosa Maria Perez/0000-0002-4075-4152; Di Nitto, Antonio/0000-0002-9319-366X; Lazarus, Ian/0000-0003-1235-4984; Hadynska Klek, Katarzyna/0000-0003-1244-9561; Sanchis Peris, Enrique/0000-0002-9689-9131; Moszynski, Marek/0000-0002-1267-2838; Soderstrom, Par-Anders/0000-0002-9504-2814, WOS: 000462142700010, The NEutron Detector Array, NEDA, will form the next generation neutron detection system that has been designed to be operated in conjunction with gamma-ray arrays, such as the tracking-array AGATA, to aid nuclear spectroscopy studies. NEDA has been designed to be a versatile device, with high-detection efficiency, excellent neutron-gamma discrimination, and high rate capabilities. It will be employed in physics campaigns in order to maximise the scientific output, making use of the different stable and radioactive ion beams available in Europe. the first implementation of the neutron detector array NEDA with AGATA 1 pi was realised at GANIL. This manuscript reviews the various aspects of NEDA., Swedish Research Council, SwedenSwedish Research Council [VR 2014-6644]; Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [117F114, 114F473]; Polish National Science Centre, Poland [2017/25/B/ST2/01569, 2016/22/M/ST2/00269 COPIN-IN2P3]; COPIGAL projects, Poland; UK STFCScience & Technology Facilities Council (STFC) [ST/J000124/1, ST/L005727/1, STL005735/1, ST/P003885/1]; Generalitat ValencianaGeneralitat Valenciana [PROMETEO II/2014/019, FPA2017-84756-C4]; MICIU, Spain [PROMETEO II/2014/019, FPA2017-84756-C4]; Severo Ochoa, Spain [SEV-2014-0398]; E.C. FEDER, Spain funds, This study is supported by the Swedish Research Council, Sweden (contract number VR 2014-6644), the Scientific and Technological Research Council of Turkey (TUBITAK Project No: 117F114 and 114F473), the Polish National Science Centre, Poland, grants nos. 2017/25/B/ST2/01569 and 2016/22/M/ST2/00269 COPIN-IN2P3 and COPIGAL projects, Poland, the UK STFC under grant nos. (ST/J000124/1, ST/L005727/1, STL005735/1, ST/P003885/1), the Generalitat Valenciana and MICIU, Spain, grants PROMETEO II/2014/019, FPA2017-84756-C4, Severo Ochoa, Spain SEV-2014-0398 and by the E.C. FEDER, Spain funds.

Published
2019

22. The GALILEO γ-ray array at the Legnaro National Laboratories

Author

Goasduff, A., primary, Mengoni, D., additional, Recchia, F., additional, Valiente-Dobón, J.J., additional, Menegazzo, R., additional, Benzoni, G., additional, Barrientos, D., additional, Bellato, M., additional, Bez, N., additional, Biasotto, M., additional, Blasi, N., additional, Boiano, C., additional, Boso, A., additional, Bottoni, S., additional, Bracco, A., additional, Brambilla, S., additional, Brugnara, D., additional, Camera, F., additional, Capra, S., additional, Capsoni, A., additional, Cocconi, P., additional, Coelli, S., additional, Cortés, M.L., additional, Crespi, F.C.L., additional, de Angelis, G., additional, Egea, F.J., additional, Fanin, C., additional, Fantinel, S., additional, Gadea, A., additional, Gamba, E.R., additional, Gambalonga, A., additional, Gesmundo, C., additional, Gosta, G., additional, Gottardo, A., additional, Gozzelino, A., additional, Gregor, E.T., additional, Gulmini, M., additional, Ha, J., additional, Hadyńska-Klȩk, K., additional, Illana, A., additional, Isocrate, R., additional, Jaworski, G., additional, John, P.R., additional, Lenzi, S.M., additional, Leoni, S., additional, Lunardi, S., additional, Magalini, M., additional, Marchini, N., additional, Million, B., additional, Modamio, V., additional, Nannini, A., additional, Napoli, D.R., additional, Pasqualato, G., additional, Pellumaj, J., additional, Pérez-Vidal, R.M., additional, Pigliapoco, S., additional, Polettini, M., additional, Porzio, C., additional, Pullia, A., additional, Ramina, L., additional, Rampazzo, G., additional, Rampazzo, M., additional, Rebeschini, M., additional, Rezynkina, K., additional, Rocchini, M., additional, Romanato, M., additional, Rosso, D., additional, Saltarelli, A., additional, Scarcioffolo, M., additional, Siciliano, M., additional, Testov, D.A., additional, Tomasella, D., additional, Tomasi, F., additional, Toniolo, N., additional, Ur, C.A., additional, Ventura, S., additional, Veronese, F., additional, Viscione, E., additional, Volpe, V., additional, Wieland, O., additional, Zanon, I., additional, Ziliani, S., additional, Zhang, G., additional, and Bazzacco, D., additional

Published
2021
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23. Fusion of 12 C + 24 Mg at extreme sub-barrier energies.

Author

Montagnoli, G, Stefanini, A M, Jiang, C L, Hagino, K, Niola, F, Brugnara, D, Čolović, P, Colucci, G, Corradi, L, Depalo, R, Fioretto, E, Goasduff, A, Pasqualato, G, Scarlassara, F, Szilner, S, and Zanon, I

Subjects
THRESHOLD energy, WORK measurement, ENERGY function
Abstract

A recent experiment on 12C + 24Mg sub-barrier fusion was performed. Standard coupled-channels calculations clearly over-estimated the low energy cross sections and there was indication of a maximum of the astrophysical S factor vs energy. In the present work further measurements have been performed on the same system, and we extended the excitation function to lower energies down to σ ≃ 4 ÎĽ b, confirming the existence of the hindrance phenomenon. Additional energy points near the barrier were added as well. In agreement with the result of previous experiment, the hindrance energy threshold is observed to correspond to a remarkably large cross section. The present new data allow to better define the S -factor maximum, that is well fitted using two parametrizations of either the hindrance or the adiabatic model. We also performed coupled-channels calculations using a Woodsâ€"Saxon potential. Far below the barrier we observe that the coupling strengths decrease and tend to vanish, indeed one-dimensional tunnelling calculations well reproduce the excitation function. Further precise cross section measurements at slightly lower energies are needed to discriminate between the adiabatic and hindrance models. This would give a reliable guidance for the extrapolation to the systems of astrophysical interest, like 12C + 12C and 16O + 16O. [ABSTRACT FROM AUTHOR]

Published
2022
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25. Octupole correlations near $^{110}$Te

Author

Testov, D. A., Bakes, S., Valiente-Dobon, J. J., Goasduff, A., Frauendorf, S., Nowacki, F., Rodriguez, T. R., de Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, B., Cicerchia, M., Čolović, Petra, Colucci, G., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Jaworski, G., John, P. R., Lenzi, S., Liu, H., Lunardi, S., Menegazzo, R., Mengoni, D., Mentana, A., Napoli, D. R., Pasqualato, G., Recchia, F., Riccetto, S., Robledo, L. M., Rocchini, M., Saygi, B., Siciliano, M., Sobolev, Yu., Szilner, Suzana, Institut Pluridisciplinaire Hubert Curien (IPHC), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Structure, nucleon-nucleon interactions, collective levels, lifetimes
Abstract

International audience; The lifetime of the 2+ and 9−, 11−, 13−, 15− states in the neutron-deficient Te110 was measured for the first time using the recoil distance Doppler shift technique. The reported value of the reduced transition probability B(E2;0g.s+→2+)=4.3(8)×103e2fm4 supports the systematic for even-mass Te isotopes and was interpreted in the framework of the large-scale shell model and cranked shell model calculations. The measured reduced transition probabilities in the negative-parity yrast band revealed the upward trend towards the high spins. The enhanced collectivity is discussed in terms of the tilted axis cranking approach and the symmetry configuration mixing method with the Gogny D1S interaction.

Published
2021

26. First in-beam test of the GALTRACE innovative silicon detector array

Author

Capra, S., Ziliani, S., Goasduff, A., Leoni, S., Fornal, B., Mengoni, D., Benzoni, G., Zanon, I., Compagnucci, A., Luciani, M., Skowronski, J., Brugnara, D., Cieplicka-Orynczak, N., Colucci, G., Cortes, M.L., Gosta, G., Gottardo, A., Hadynska-Klek, K.C., Pasqualato, G., Recchia, F., Siciliano, M., Dobon, J.J.Valiente, Pullia, A., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Abstract

International audience; In this work, the characterization and the preliminary results of the GALTRACE silicon detector array are reported. The paper describes the setup used in the 2019 experimental campaign and shows some preliminary results together with some technical details.

Published
2021

27. Octupole correlations near Te 110

Author

Testov, D. A., Bakes, S., Valiente-Dobón, J. J., Goasduff, A., Frauendorf, S., Nowacki, F., Rodríguez, T. R., De Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, Bo, Cicerchia, M., Čolović, P., Colucci, G., Didierjean, F., Doncel, M., Dueñas, J. A., Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Jaworski, G., John, P. R., Lenzi, S., Liu, Haichun, Lunardi, S., Menegazzo, R., Mengoni, D., Mentana, A., Napoli, D. R., Pasqualato, G., Recchia, F., Riccetto, S., Robledo, L. M., Rocchini, M., Saygi, B., Siciliano, M., Sobolev, Y., Szilner, S., Testov, D. A., Bakes, S., Valiente-Dobón, J. J., Goasduff, A., Frauendorf, S., Nowacki, F., Rodríguez, T. R., De Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, Bo, Cicerchia, M., Čolović, P., Colucci, G., Didierjean, F., Doncel, M., Dueñas, J. A., Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Jaworski, G., John, P. R., Lenzi, S., Liu, Haichun, Lunardi, S., Menegazzo, R., Mengoni, D., Mentana, A., Napoli, D. R., Pasqualato, G., Recchia, F., Riccetto, S., Robledo, L. M., Rocchini, M., Saygi, B., Siciliano, M., Sobolev, Y., and Szilner, S.

Abstract

The lifetime of the 2+ and 9-, 11-, 13-, 15- states in the neutron-deficient Te110 was measured for the first time using the recoil distance Doppler shift technique. The reported value of the reduced transition probability B(E2;0g.s+→2+)=4.3(8)×103e2fm4 supports the systematic for even-mass Te isotopes and was interpreted in the framework of the large-scale shell model and cranked shell model calculations. The measured reduced transition probabilities in the negative-parity yrast band revealed the upward trend towards the high spins. The enhanced collectivity is discussed in terms of the tilted axis cranking approach and the symmetry configuration mixing method with the Gogny D1S interaction., QC 20220922

Published
2021
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28. Octupole correlations near Te110

Author

Testov, D. A., primary, Bakes, S., additional, Valiente-Dobón, J. J., additional, Goasduff, A., additional, Frauendorf, S., additional, Nowacki, F., additional, Rodríguez, T. R., additional, de Angelis, G., additional, Bazzacco, D., additional, Boiano, C., additional, Boso, A., additional, Cederwall, B., additional, Cicerchia, M., additional, Čolović, P., additional, Colucci, G., additional, Didierjean, F., additional, Doncel, M., additional, Dueñas, J. A., additional, Galtarossa, F., additional, Gozzelino, A., additional, Hadyńska-Klęk, K., additional, Jaworski, G., additional, John, P. R., additional, Lenzi, S., additional, Liu, H., additional, Lunardi, S., additional, Menegazzo, R., additional, Mengoni, D., additional, Mentana, A., additional, Napoli, D. R., additional, Pasqualato, G., additional, Recchia, F., additional, Riccetto, S., additional, Robledo, L. M., additional, Rocchini, M., additional, Saygi, B., additional, Siciliano, M., additional, Sobolev, Yu., additional, and Szilner, S., additional

Published
2021
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29. Probing isospin mixing with the giant dipole resonance in the Zn60 compound nucleus

Author

Gosta, G., primary, Mentana, A., additional, Camera, F., additional, Bracco, A., additional, Ceruti, S., additional, Benzoni, G., additional, Blasi, N., additional, Brambilla, S., additional, Capra, S., additional, Crespi, F. C. L., additional, Giaz, A., additional, Leoni, S., additional, Million, B., additional, Riboldi, S., additional, Porzio, C., additional, Ziliani, S., additional, Wieland, O., additional, Nannini, A., additional, Rocchini, M., additional, Marchini, N., additional, Ciemała, M., additional, Kmiecik, M., additional, Maj, A., additional, Wasilewska, B., additional, Zieblinski, M., additional, Filipescu, D., additional, Kaur, J., additional, Marginean, N., additional, Pascu, S., additional, Glodariu, T., additional, Ghita, D., additional, Zamfir, V., additional, Valiente-Dobón, J. J., additional, de Angelis, G., additional, Galtarossa, F., additional, Goasduff, A., additional, Bayram, T., additional, Gadea, A., additional, Montaner, A., additional, Zanon, I., additional, Brugnara, D., additional, Gozzelino, A., additional, Pasqualato, G., additional, Menegazzo, R., additional, Gottardo, A., additional, Jaworski, G., additional, Lenzi, S., additional, Napoli, D., additional, Testov, D., additional, Siciliano, M., additional, Marchi, T., additional, Mengoni, D., additional, Bazzacco, D., additional, Boso, A., additional, John, P. R., additional, Recchia, F., additional, Raabe, R., additional, Poleshchuk, O., additional, and Yang, J., additional

Published
2021
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30. Lifetime measurements using a plunger device and the EUCLIDES Si array at the GALILEO gamma-ray spectrometer

Author

Bradbury, J., Testov, D., Bakes, S., Goasduff, A., Mengoni, D., Valiente-Dobon, J. J., de Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, B., Cicerchia, M., Colucci, G., Colovic, P., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Jaworski, G., John, P. R., Liu, H., Lenzi, S., Lunardi, S., Menegazzo, R., Mentana, A., Mueller-Gatermann, C., Napoli, D. R., Pasqualato, G., Recchia, F., Rocchini, M., Riccetto, S., Saygi, B., Siciliano, M., Sobolev, Yu, Szilner, S., Bradbury, J., Testov, D., Bakes, S., Goasduff, A., Mengoni, D., Valiente-Dobon, J. J., de Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, B., Cicerchia, M., Colucci, G., Colovic, P., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Jaworski, G., John, P. R., Liu, H., Lenzi, S., Lunardi, S., Menegazzo, R., Mentana, A., Mueller-Gatermann, C., Napoli, D. R., Pasqualato, G., Recchia, F., Rocchini, M., Riccetto, S., Saygi, B., Siciliano, M., Sobolev, Yu, and Szilner, S.

Abstract

The GALILEO gamma-ray spectrometer, installed at the Laboratori Nazionali di Legnaro (LNL), benefits from intense stable beams provided by the Tandem-ALPI-PIAVE accelerator complex and from radioactive beams to be delivered in the near future by the SPES facility. The spectrometer is complemented with a variety of ancillary devices to allow for nuclear structure and reaction studies. The 4 pi Si-ball array EUCLIDES coupled to the GALILEO gamma-ray spectrometer represents one of the commonly used setup for experiments aiming at spectroscopic studies. High-efficiency detection of light-charged particles in a fusion-evaporation reaction guarantees good discrimination of different reaction channels and provides essential information for the kinematic reconstruction. In this paper we discuss a configuration of the EUCLIDES array developed for the lifetime measurements of nuclear excited states populated in a fusion-evaporation reaction. In such a configuration a part of the EUCLIDES detectors is disassembled allowing for the installation of a plunger device in the reaction chamber. The reduced configuration of EUCLIDES provides high detection efficiency necessary for reliable light charged-particle discrimination. We report on the commissioning experiment focused on the Ni-58(Ni-58,3p)I-113 reaction. The lifetimes of 11/2(-) and 15/2(-) states were measured by applying the Recoil Distance Doppler Shift method to be equal to 206(20) ps and 7.9(12) ps correspondingly and were in good agreement with the values cited in the literature. Thus, the combination of the GALILEO and EUCLIDES arrays, and the plunger device has resulted in a powerful experimental setup to determine lifetimes of excited states in neutron-deficient nuclei in the picosecond range.

Published
2020

35. Transfer couplings and hindrance far below the barrier for 40Ca + 96Zr

Author

Stefanini A.M., Montagnoli G., Esbensen H., Corradi L., Courtin S., Fioretto E., Goasduff A., Grebosz J., Haas F., Mazzocco M., Michelagnoli C., Mijatović T., Montanari D., Pasqualato G., Parascandolo C., Scarlassara F., Strano E., Szilner S., Toniolo N., and Torresi D.

Subjects
Physics, QC1-999
Abstract

The sub-barrier fusion excitation function of 40Ca + 96Zr has been measured down to cross sections ≃2.4µb, i.e. two orders of magnitude smaller than obtained in the previous experiment, where the sub-barrier fusion of this system was found to be greatly enhanced with respect to 40Ca + 90Zr, and the need of coupling to transfer channels was suggested. The purpose of this work was to investigate the behavior of 40Ca + 96Zr fusion far below the barrier. The smooth trend of the excitation function has been found to continue, and the logarithmic slope increases very slowly. No indication of hindrance shows up, and a comparison with 48Ca + 96Zr is very useful in this respect. A new CC analysis of the complete excitation function has been performed, including explicitly one- and two-nucleon Q >0 transfer channels. Such transfer couplings bring significant cross section enhancements, even at the level of a few µb. Locating the hindrance threshold, if any, in 40Ca + 96Zr would require challenging measurements of cross sections in the sub-µb range.

Published
2015
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36. Lifetime measurements using a plunger device and the EUCLIDES Si array at the GALILEO γ-ray spectrometer

Author

Bradbury, J., primary, Testov, D., additional, Bakes, S., additional, Goasduff, A., additional, Mengoni, D., additional, Valiente-Dobón, J.J., additional, de Angelis, G., additional, Bazzacco, D., additional, Boiano, C., additional, Boso, A., additional, Cederwall, B., additional, Cicerchia, M., additional, Colucci, G., additional, Čolović, P., additional, Didierjean, F., additional, Doncel, M., additional, Dueñas, J.A., additional, Galtarossa, F., additional, Gozzelino, A., additional, Hadyńska-Klȩk, K., additional, Jaworski, G., additional, John, P.R., additional, Liu, H., additional, Lenzi, S., additional, Lunardi, S., additional, Menegazzo, R., additional, Mentana, A., additional, Müller-Gatermann, C., additional, Napoli, D.R., additional, Pasqualato, G., additional, Recchia, F., additional, Rocchini, M., additional, Riccetto, S., additional, Saygi, B., additional, Siciliano, M., additional, Sobolev, Yu., additional, and Szilner, S., additional

Published
2020
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38. Low-energy Coulomb excitation of Zr-94

Author

Marchini, N, Rocchini, M, Nannini, A, Doherty, DT, Zielinska, M, Hadynska-Klek, K, Testov, D, Goasduff, A, Benzoni, G, Camera, F, Bakes, SD, Bazzacco, D, Berry, T, Brugnara, D, Brunet, MH, Carozzi, G, Catford, WN, De Rizzo, M, Galtarossa, F, Garrett, P, Gelli, N, Gottardo, A, Gozzelino, A, Illana, A, Keatings, J, Kennington, ARL, Mengoni, D, Morrison, L, Napoli, DR, Ottanelli, M, Ottanelli, P, Pasqualato, G, Recchia, F, Riccetto, S, Scheck, M, Siciliano, M, Sighinolfi, G, Sinclair, J, Dobon, JJ Valiente, and Zanon, I

Subjects
Science & Technology, Physics, Physical Sciences, Physics, Multidisciplinary
Abstract

ispartof: NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS vol:42 issue:2-3 status: published

Published
2019

39. The New Neutron Multiplicity Filter NEDA and Its First Physics Campaign with AGATA

Author

Jaworski, G., Goasduff, A., Canet, F. J. Egea, Modamio, V, Huyuk, T., Triossi, A., Jastrzab, M., Soderstrom, P-A, Carturan, S. M., Di Nitto, A., de Angelis, G., De France, G., Erduran, N., Gadea, A., Moszynski, M., Nyberg, Johan, Palacz, M., Valiente, J., Wadsworth, R., Aliaga, R., Aufranc, C., Bezard, M., Beaulieu, G., Bednarczyk, P., Bisiato, E., Boujrad, A., Burrows, I, Clement, E., Cocconi, P., Colucci, G., Conventi, D., Cordwell, M., Coudert, S., Deltoro, J. M., Ducroux, L., Dupasquier, T., Erturk, S., Fabian, X., Gonzalez, V, Gottardo, A., Grant, A., Hadynska-Klek, K., Illana, A., Jurado-Gomez, M. L., Kogimtzis, M., Lazarus, I, Legeard, L., Ljungvall, J., Maj, A., Pasqualato, G., Perez-Vidal, R. M., Raggio, A., Ralet, D., Redon, N., Saillant, F., Sanchis, E., Saygi, B., Scarcioffolo, M., Siciliano, M., Stezowski, O., Testov, D., Tripon, M., Zanon, I, Jaworski, G., Goasduff, A., Canet, F. J. Egea, Modamio, V, Huyuk, T., Triossi, A., Jastrzab, M., Soderstrom, P-A, Carturan, S. M., Di Nitto, A., de Angelis, G., De France, G., Erduran, N., Gadea, A., Moszynski, M., Nyberg, Johan, Palacz, M., Valiente, J., Wadsworth, R., Aliaga, R., Aufranc, C., Bezard, M., Beaulieu, G., Bednarczyk, P., Bisiato, E., Boujrad, A., Burrows, I, Clement, E., Cocconi, P., Colucci, G., Conventi, D., Cordwell, M., Coudert, S., Deltoro, J. M., Ducroux, L., Dupasquier, T., Erturk, S., Fabian, X., Gonzalez, V, Gottardo, A., Grant, A., Hadynska-Klek, K., Illana, A., Jurado-Gomez, M. L., Kogimtzis, M., Lazarus, I, Legeard, L., Ljungvall, J., Maj, A., Pasqualato, G., Perez-Vidal, R. M., Raggio, A., Ralet, D., Redon, N., Saillant, F., Sanchis, E., Saygi, B., Scarcioffolo, M., Siciliano, M., Stezowski, O., Testov, D., Tripon, M., and Zanon, I

Abstract

A new neutron multiplicity filter NEDA, after a decade of design, R&D and construction, was employed in its first physics campaign with the AGATA spectrometer. Properties and performance of the array are discussed.

Published
2019
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40. High Resolution γ-Ray Spectrometry Using Galileo Array

Author

Testov, D., Valiente-Dobon, J. J., Mengoni, D., Recchia, F., Goasduff, A., Boso, A., Lenzi, S., de Angelis, G., Bakes, S., Boiano, C., Cederwall, Bo, Colucci, G., Cicerchia, M., Colovic, P., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Isocrate, R., Jaworski, G., John, P. R., Liu, H., Lunardi, S., Menegazzo, R., Mentana, A., Modamio, V., Nannini, A., Napoli, D. R., Palacz, M., Pasqualato, G., Rocchini, M., Riccetto, S., Saygi, B., Sahin, E., Siciliano, M., Sobolev, Y., Szilner, S., Testov, D., Valiente-Dobon, J. J., Mengoni, D., Recchia, F., Goasduff, A., Boso, A., Lenzi, S., de Angelis, G., Bakes, S., Boiano, C., Cederwall, Bo, Colucci, G., Cicerchia, M., Colovic, P., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Isocrate, R., Jaworski, G., John, P. R., Liu, H., Lunardi, S., Menegazzo, R., Mentana, A., Modamio, V., Nannini, A., Napoli, D. R., Palacz, M., Pasqualato, G., Rocchini, M., Riccetto, S., Saygi, B., Sahin, E., Siciliano, M., Sobolev, Y., and Szilner, S.

Abstract

The GALILEO γ-ray spectrometer has been constructed at the Legnaro National Laboratory of INFN (LNL-INFN). It can be coupled to advanced ancillary devices which allows nuclear structure studies employing the variety of in-beam γ-ray spectroscopy methods. Such studies benefit from reactions induced by the intense stable beams delivered by the Tandem-ALPI-PIAVE accelerator complex and by the radioactive beams which will be provided by the SPES facility. In this paper we outline two experiments performed within the experimental campaign at GALILEO coupled to the EUCLIDES Si-ball and the Neutron Wall array. The first one was aimed at spectroscopic studies in A=31 mirror nuclei and the second one at measurements of lifetimes of excited states in nuclei in the vicinity of 100Sn., QC 20210914

Published
2019
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41. High Resolution $\gamma$-Ray Spectroscopy Using GALILEO Array

Author

Testov, D., Valiente-Dobón, J. J., Mengoni, D., Recchia, F., Goasduff, A., Boso, A., Lenzi, S., de Angelis, G., Bakes, S., Boiano, C., Cederwall, B., Colucci, G., Cicerchia, M., Čolović, P., Didierjean, F., Doncel, M., {n}as, J. A. Due, Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Isocrate, R., Jaworski, G., John, P. R., Liu, H., Lunardi, S., Menegazzo, R., Mentana, A., Modamio, V., Nannini, A., Napoli, D. R., Palacz, M., Pasqualato, G., Rocchini, M., Riccetto, S., Saygi, B., Sahin, E., Siciliano, M., Sobolev, Yu., Szilner, S., 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), and Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, business.industry, Astrophysics::High Energy Astrophysical Phenomena, High resolution, nuclear state lifetime, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Optics, γ-ray spectrometer, 0103 physical sciences, nuclear structure, Physics::Accelerator Physics, Galileo (vibration training), business, Spectroscopy, Nuclear Experiment, γ-Ray spectroscopy, 010301 acoustics
Abstract

The GALILEO $\gamma$-ray spectrometer has been constructed at the Legnaro National Laboratory of INFN (LNL-INFN). It can be coupled to advanced ancillary devices which allows nuclear structure studies employing the variety of in-beam $\gamma$-ray spectroscopy methods. Such studies benefit from reactions induced by the intense stable beams delivered by the Tandem-ALPI-PIAVE accelerator complex and by the radioactive beams which will be provided by the SPES facility. In this paper we outline two experiments performed within the experimental campaign at GALILEO coupled to the EUCLIDES Si-ball and the Neutron Wall array. The first one was aimed at spectroscopic studies in A=31 mirror nuclei and the second one at measurements of lifetimes of excited states in nuclei in the vicinity of $^{100}$Sn., Comment: The IX International Symposium on EXOtic Nuclei (EXON-2018)

Published
2018

42. High Resolution γ-Ray Spectroscopy Using GALILEO Array

Author

Testov, D., primary, Valiente-Dobón, J. J., additional, Mengoni, D., additional, Recchia, F., additional, Goasduff, A., additional, Boso, A., additional, de Angelis, G., additional, Lenzi, S., additional, Bakes, S., additional, Boiano, C., additional, Cederwall, B., additional, Colucci, G., additional, Cicerchia, M., additional, Čolović, P., additional, Didierjean, F., additional, Doncel, M., additional, Dueňas, J. A., additional, Galtarossa, F., additional, Gozzelino, A., additional, Hadyńska-Klęk, K., additional, Isocrate, R., additional, Jaworski, G., additional, John, P. R., additional, Liu, H., additional, Lunardi, S., additional, Menegazzo, R., additional, Mentana, A., additional, Modamio, V., additional, Nannini, A., additional, Napoli, D. R., additional, Palacz, M., additional, Pasqualato, G., additional, Rocchini, M., additional, Riccetto, S., additional, Saygi, B., additional, Sahin, E., additional, Siciliano, M., additional, Sobolev, Yu. G., additional, and Szilner, S., additional

Published
2019
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43. High resolution gamma-ray spectrometry using GALILEO array

Author

Testov, D., primary, Valiente-Dobon, J.J., additional, Mengoni, D., additional, Recchia, F., additional, Goasduff, A., additional, Boso, A., additional, Lenzi, S., additional, de Angelis, G., additional, Bakes, S., additional, Boiano, C., additional, Cederwall, B., additional, Colucci, G., additional, Cicerchia, M., additional, Colovic, P., additional, Didierjean, F., additional, Doncel, M., additional, Duenas, J.A., additional, Galtarossa, F., additional, Gozzelino, A., additional, Hadynska-Klek, K., additional, Isocrate, R., additional, Jaworski, G., additional, John, P.R., additional, Liu, H., additional, Lunardi, S., additional, Menegazzo, R., additional, Mentana, A., additional, Modamio, V., additional, Nannini, A., additional, Napoli, D.R., additional, Palacz, M., additional, Pasqualato, G., additional, Rocchini, M., additional, Riccetto, S., additional, Saygi, B., additional, Sahin, E., additional, Siciliano, M., additional, Sobolev, Yu., additional, and Szilner, S., additional

Published
2019
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44. The New Neutron Multiplicity Filter NEDA and Its First Physics Campaign with AGATA

Author

Jaworski, G., primary, Goasduff, A., additional, Egea Canet, F.J., additional, Modamio, V., additional, Hüyük, T., additional, Triossi, A., additional, Jastrząb, M., additional, Söderström, P.-A., additional, Carturan, S.M., additional, Di Nitto, A., additional, de Angelis, G., additional, De France, G., additional, Erduran, N., additional, Gadea, A., additional, Moszyński, M., additional, Nyberg, J., additional, Palacz, M., additional, Valiente, J., additional, Wadsworth, R., additional, Aliaga, R., additional, Aufranc, C., additional, Bézard, M., additional, Beaulieu, G., additional, Bednarczyk, P., additional, Bisiato, E., additional, Boujrad, A., additional, Burrows, I., additional, Clément, E., additional, Cocconi, P., additional, Colucci, G., additional, Conventi, D., additional, Cordwell, M., additional, Coudert, S., additional, Deltoro, J.M., additional, Ducroux, L., additional, Dupasquier, T., additional, Ertürk, S., additional, Fabian, X., additional, González, V., additional, Gottardo, A., additional, Grant, A., additional, Hadyńska-Klęk, K., additional, Illana, A., additional, Jurado-Gomez, M.L., additional, Kogimtzis, M., additional, Lazarus, I., additional, Legeard, L., additional, Ljungvall, J., additional, Maj, A., additional, Pasqualato, G., additional, Pérez-Vidal, R.M., additional, Raggio, A., additional, Ralet, D., additional, Redon, N., additional, Saillant, F., additional, Sanchis, E., additional, Sayğı, B., additional, Scarcioffolo, M., additional, Siciliano, M., additional, Stezowski, O., additional, Testov, D., additional, Tripon, M., additional, and Zanon, I., additional

Published
2019
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45. LIFETIME MEASUREMENTS IN 105Sn: THE PUZZLE OF B(E2) STRENGTHS IN Sn ISOTOPES.

Author

PASQUALATO, G., GOASDUFF, A., MENGONI, D., GOTTARDO, A., and VALIENTE-DOBÓN, J. J.

Subjects
*DOPPLER effect, *ISOTOPES, *PUZZLES, *COINCIDENCE, *TIN
Abstract

Information on the doubly-magic nature of the N = Z = 50 100Sn nucleus can be extracted from systematic studies of the tin isotopic chain. In this context, the lifetimes of the neutron deficient 105Sn have been investigated with the coincidence Recoil Distance Doppler Shift (RDDS) technique through the reaction 50C(58Ni; 2pn)105Sn. The experimental technique has been validated by comparing the preliminary results with known lifetimes in 105In. [ABSTRACT FROM AUTHOR]

Published
2020
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48. Transfer couplings and hindrance far below the barrier for Ca-40+Zr-96

Author

Stefanini A., M., Montagnoli, G., Esbensen, H., Corradi, L., Courtin, S., Fioretto, E., Goasduff, A., Grebosz, J., Haas, F., Mazzocco, M., Michelagnoli, C., Mijatovic, T., Montanari, D., Pasqualato, G., Parascandolo, C., Scarlassara, F., Strano, E., Szilner, S., Toniolo, N., Torresi, D., 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), CSNSM SNO, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS]Physics [physics], FUSION, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; The sub-barrier fusion excitation function of Ca-40 + Zr-96 has been measured down to cross sections similar or equal to 2.4 mu b, i.e. two orders of magnitude smaller than obtained in the previous experiment, where the sub-barrier fusion of this system was found to be greatly enhanced with respect to Ca-40 + Zr-90, and the need of coupling to transfer channels was suggested. The purpose of this work was to investigate the behavior of Ca-40 + Zr-96 fusion far below the barrier. The smooth trend of the excitation function has been found to continue, and the logarithmic slope increases very slowly. No indication of hindrance shows up, and a comparison with Ca-48 + Zr-96 is very useful in this respect. A new CC analysis of the complete excitation function has been performed, including explicitly one- and two-nucleon Q > 0 transfer channels. Such transfer couplings bring significant cross section enhancements, even at the level of a few mu b. Locating the hindrance threshold, if any, in Ca-40 + Zr-96 would require challenging measurements of cross sections in the sub-mu b range.

Published
2014

49. Transfer couplings and hindrance far below the barrier for40Ca +96Zr

Author

Stefanini, A.M., primary, Montagnoli, G., additional, Esbensen, H., additional, Corradi, L., additional, Courtin, S., additional, Fioretto, E., additional, Goasduff, A., additional, Grebosz, J., additional, Haas, F., additional, Mazzocco, M., additional, Michelagnoli, C., additional, Mijatović, T., additional, Montanari, D., additional, Pasqualato, G., additional, Parascandolo, C., additional, Scarlassara, F., additional, Strano, E., additional, Szilner, S., additional, Toniolo, N., additional, and Torresi, D., additional

Published
2015
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