Search

Your search keyword '"Valiente-Dobon J.J."' showing total 5 results
Start Over Author "Valiente-Dobon J.J." Publisher american physical society
5 results on '"Valiente-Dobon J.J."'

1. Isospin properties of nuclear pair correlations from the level structure of the self-conjugate nucleus 88Ru

Author

Podolyak, Zsolt, Cederwall, B., Liu, X., Aktas, O., Ertoprak, A., Zhang, W., Qi, C., Clement, E., de France, G., Ralet, D., Gadea, A., Goasduff, A., Jaworski, G., Kuti, I., Nyako, B.M., Nyberg, J., Palacz, M., Wadsworth, R., Valiente-Dobon, J.J, Al-Azri., H., Atac Nyberg, A., Back, T., de. Angelis, G., Doncel, M., Dudouet, J., Gottardo, A., Juardo, M., Ljunvall, J., Mengoni, D., Napoli, D.R, Petrache, C.M, Sohler, D., Timar, J., Barrientos, D., Bednarczyk, P., Benzoni, G., Birkenbach, B., Boston, A.J, Boston, H.C, Burrows, I., Charles, L., Ciemala, M., Crespi, F.C.L, Cullen, D.M, Desesquelles, P., Domingo-Pardo, C., Eberth, J., Erduran, N., Erturk, S., Gonzalez, V., Goupil, J., Hess, H., Huyuk, T., Jungclaus, A., Korten, W., Lemasson, A., Leoni, S., Maj, A., Menegazzo, R., Million, B., Perez-Vidal, R.M, Pullia, A., Recchia, F., Reiter, P., Saillant, F., Salsac, M.D, Sanchis, E., Simpson, J., Stezowski, O., Theisen, Ch., and Zielinska, M.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The low-lying energy spectrum of the extremely neutron-deficient self-conjugate (N = Z) nuclide 88 44Ru44 has been measured using the combination of the Advanced Gamma Tracking Array (AGATA) spectrometer, the NEDA and Neutron Wall neutron detector arrays, and the DIAMANT charged particle detector array. Excited states in 88Ru were populated via the 54Fe(36Ar; 2n )88Ru fusion-evaporation reaction at the Grand Acc�el�erateur National d'Ions Lourds (GANIL) accelerator complex. The observed -ray cascade is assigned to 88Ru using clean prompt - -2-neutron coincidences in anti-coincidence with the detection of charged particles, con�rming and extending the previously assigned sequence of low-lying excited states. It is consistent with a moderately deformed rotating system exhibiting a band crossing at a rotational frequency that is significantly higher than standard theoretical predictions with isovector pairing, as well as observations in neighboring N > Z nuclides. The direct observation of such a \delayed" rotational alignment in a deformed N = Z nucleus is in agreement with theoretical predictions related to the presence of strong isoscalar neutron-proton pair correlations.

Published
2019

2. Coupling of the proton-hole and neutron-particle states in the neutron-rich 48K isotope

Author

Galtarossa, F., Seweryniak, D., Bazzacco, D., Stefanini, A.M., Janssens, R.V.F., Fornal, B., Szilner, S., Pawłat, T., Królas, W., Ur, C.A., De Angelis, G., Valiente-Dobon, J.J., Pokrovskiy, I., Carpenter, M.P., Pollarolo, G., Lunardi, S., Gadea, A., Montagnoli, G., Zhu, S., Szpak, B., Fioretto, E., Farnea, E., Scarlassara, F., Corradi, L., Napoli, D.R., Mrginean, N., Mengoni, D., Sahin, E., Broda, R., Wrzesiński, J., Orlandi, R., and Lauritsen, T.

Abstract

Excited states in the Z=19, N=29 neutron-rich 48K isotope have been studied using deep-inelastic transfer reactions with a thick target at Gammasphere and with a thin target at the PRISMA-CLARA spectrometer. The lowest excited states were located; they involve a proton hole in the s1/2 or d 3/2 orbital coupled to a p3/2 neutron. A new 7.1(5)-ns, 5+ isomer, the analog of the 7/2- isomer in 47K, was identified. Based on the observed γ-decay pattern of the isomer a revised spin-parity assignment of 1- is proposed for the ground state of 48K.

Published
2011
Full Text
View/download PDF

3. β-decay Studies of Neutron-rich Tl, Pb, and Bi Isotopes

Author

Morales, A.I., Benzoni, G., Gottardo, A., Valiente-Dobon, J.J., Blasi, N., Bracco, A., Camera, F., Crespi, F.C.L., Corsi, A., Leoni, S., Million, B., Nicolini, R., Wieland, O., Gadea, A., Lunardi, S., Gorska, M., Regan, P.H., Podolyak, Zs., Pfützner, M., Pietri, S., Boutachkov, P., Weick, H., Grebosz, J., Bruce, A.M., Alcantara Nunez, J., Al-Dahan, N., Ayyad, Y., Alkhomashi, N., Allegro, P.R.P., Bazzacco, D., Benlliure, J., Bowry, M., Bunce, M., Casarejos, E., Cortes, M.L., Denis Bachelar, A.M., Deo, A.Y., de Angelis, G., Domingo-Pardo, C., Doncel, M., Dombradi, Zs., Engert, T., Eppinger, K., Farelly, G.F., Farinon, F., Farnea, E., Geissel, H., Gerl, J., Goel, N., Gregor, E., Habermann, T., Hoischen, Robert, Janik, R., Klupp, S., Kojouharov, I., Kurz, N., Mandal, S., Menegazzo, R., Mengoni, D., Napoli, D.R., Naqvi, F., Nociforo, C., Prochazka, A., Prokopowicz, W., Recchia, F., Ribas, R.V., Reed, M.W., Rudolph, Dirk, Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Steiger, K., Strmen, P., Swan, T.P.D., Szarka, I., Ur, C.A., Walker, P.M., Wollersheim, H.-J., Morales, A.I., Benzoni, G., Gottardo, A., Valiente-Dobon, J.J., Blasi, N., Bracco, A., Camera, F., Crespi, F.C.L., Corsi, A., Leoni, S., Million, B., Nicolini, R., Wieland, O., Gadea, A., Lunardi, S., Gorska, M., Regan, P.H., Podolyak, Zs., Pfützner, M., Pietri, S., Boutachkov, P., Weick, H., Grebosz, J., Bruce, A.M., Alcantara Nunez, J., Al-Dahan, N., Ayyad, Y., Alkhomashi, N., Allegro, P.R.P., Bazzacco, D., Benlliure, J., Bowry, M., Bunce, M., Casarejos, E., Cortes, M.L., Denis Bachelar, A.M., Deo, A.Y., de Angelis, G., Domingo-Pardo, C., Doncel, M., Dombradi, Zs., Engert, T., Eppinger, K., Farelly, G.F., Farinon, F., Farnea, E., Geissel, H., Gerl, J., Goel, N., Gregor, E., Habermann, T., Hoischen, Robert, Janik, R., Klupp, S., Kojouharov, I., Kurz, N., Mandal, S., Menegazzo, R., Mengoni, D., Napoli, D.R., Naqvi, F., Nociforo, C., Prochazka, A., Prokopowicz, W., Recchia, F., Ribas, R.V., Reed, M.W., Rudolph, Dirk, Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Steiger, K., Strmen, P., Swan, T.P.D., Szarka, I., Ur, C.A., Walker, P.M., and Wollersheim, H.-J.

Abstract

The fragmentation of relativistic uranium projectiles has been exploited at the Gesellschaft für Schwerionenforschung laboratory to investigate the β decay of neutron-rich nuclei just beyond 208Pb. This paper reports on β-delayed γ decays of 211–213Tl, 215Pb, and 215–219Bi de-exciting states in the daughters 211–213Pb, 215Bi, and 215–219Po. The resulting partial level schemes, proposed with the help of systematics and shell-model calculations, are presented. The role of allowed Gamow-Teller and first-forbidden β transitions in this mass region is discussed.

Published
2014

4. Isomeric decay spectroscopy of the 217Bi isotope

Author

Gottardo, A., Valiente-Dobon, J.J., Benzoni, G, Lunardi, S, Gadea, A, Algora, A., Al-Dahan, N., de Angelis, G, Ayyad, Y., Bazzacco, D, Reed, Matthew, Gottardo, A., Valiente-Dobon, J.J., Benzoni, G, Lunardi, S, Gadea, A, Algora, A., Al-Dahan, N., de Angelis, G, Ayyad, Y., Bazzacco, D, and Reed, Matthew

Published
2014

5. New isomers in the full seniority scheme of neutron-rich lead isotopes: The role of effective three-body forces

Author

Gottardo, A., Valiente-Dobon, J.J., Weick, H., Benlliure, J., Farinon, F., Geissel, H., Napoli, D, Nociforo, C., Prochazka, A., Kurz, N., Reed, Matthew, Domingo-Pardo, C, Gottardo, A., Valiente-Dobon, J.J., Weick, H., Benlliure, J., Farinon, F., Geissel, H., Napoli, D, Nociforo, C., Prochazka, A., Kurz, N., Reed, Matthew, and Domingo-Pardo, C

Abstract

The neutron-rich lead isotopes, up to Pb216, have been studied for the first time, exploiting the fragmentation of a primary uranium beam at the FRS-RISING setup at GSI. The observed isomeric states exhibit electromagnetic transition strengths which deviate from state-of-the-art shell-model calculations. It is shown that their complete description demands the introduction of effective three-body interactions and two-body transition operators in the conventional neutron valence space beyond Pb208.

Published
2012

Catalog

Books, media, physical & digital resources
See catalog results