Search

Your search keyword '"Valiente Dobon, JJ"' showing total 39 results
Start Over Author "Valiente Dobon, JJ"
39 results on '"Valiente Dobon, JJ"'

1. Lifetimes of high-spin states in Kr-76

Author

Valiente-Dobon, JJ, Svensson, CE, O'Leary, CD, Ragnarsson, I, Andreoiu, C, Austin, RAE, Carpenter, MP, Dashdorj, D, Finlay, P, Freeman, SJ, Garrett, PE, Gorgen, A, Greene, J, Grinyer, GF, Hyland, B, Jenkins, D, Johnston-Theasby, F, Joshi, P, Kelsall, NS, Macchiavelli, AO, Moore, F, Mukherjee, G, Phillips, AA, Reviol, W, Sarantites, D, Schumaker, MA, Seweryniak, D, Smith, MB, Wadsworth, R, and Ward, D

Subjects
Nuclear & Particles Physics, Mathematical Sciences, Physical Sciences
Published
2005

2. High-spin states in Po-212 above the alpha-decaying (18+) isomer

Author

Zago, L, Gottardo, A, Valiente-Dobon, Jj, Benzoni, G, Gadea, A, Gorska, M, Lunardi, S, Podolyak, Z, Regan, Ph, Rudolph, D, Algora, A, de Angelis, G, Bazzacco, D, Benlliure, J, Boutachkov, R, Bracco, A, Bruce, Am, Camera, F, Casarejos, E, Cortes, Ml, Crespi, Fcl, Corsi, A, Domingo-Pardo, C, Doncel, M, Engert, T, Geissel, H, Gerl, J, Goasduff, A, Goel, N, Grebosz, J, Gregor, E, Habermann, T, Klupp, S, Kojouharov, I, Kurz, N, Lenzi, Sm, Leoni, S, Mandal, S, Menegazzo, R, Mengoni, D, Million, B, Morales, Ai, Napoli, Dr, Naqvi, F, Nociforo, C, Pfiitzner, M, Pietri, S, Prochazka, A, Recchia, F, Sahin, E, Schaffner, H, Sharma, A, Sitar, B, Siwal, D, Strmen, R, Szarka, I, Ca, Ur, Walker, Pm, Weick, H, Wieland, O, and Wollersheime, Hj

Subjects
High-spin spectroscopy, gamma spectroscopy, Isomer spectroscopy
Published
2022

3. Evidence of Partial Seniority Conservation in the $\pi{g}_{9/2}$ Shell for the $N=50$ Isotones

Author

Perez-Vidal, Rm, Gadea, A, Domingo-Pardo, C, Gargano, A, Valiente-Dobon, Jj, Clement, E, Lemasson, A, Coraggio, L, Siciliano, M, Szilner, S, Bast, M, Braunroth, T, Collado, J, Corina, A, Dewald, A, Doncel, M, Dudouet, J, de France, G, Fransen, C, Gonzalez, V, Huyuk, T, Jacquot, B, John, Pr, Jungclaus, A, Kim, Yh, Korichi, A, Labiche, M, Lenzi, S, Li, H, Ljungvall, J, Lopez-Martens, A, Mengoni, D, Michelagnoli, C, Muller-Gatermann, C, Napoli, Dr, Navin, A, Quintana, B, Ramos, D, Rejmund, M, Sanchis, E, Simpson, J, Stezowski, O, Wilmsen, D, Zielinska, M, Boston, Aj, Barrientos, D, Bednarczyk, P, Benzoni, G, Birkenbach, B, Boston, Hc, Bracco, A, Cederwall, B, Cullen, Dm, Didierjean, F, Eberth, J, Gottardo, A, Goupil, J, Harkness-Brennan, Lj, Hess, H, Judson, Ds, Kaskas, A, Korten, W, Leoni, S, Menegazzo, R, Million, B, Nyberg, J, Podolyak, Z, Pullia, A, Ralet, D, Recchia, F, Reiter, P, Rezynkina, K, Salsac, Md, Senyigit, M, Sohler, D, Theisen, C, Verney, D, 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 des 2 Infinis de Lyon (IP2I Lyon), 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 Laue-Langevin (ILL), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Pluridisciplinaire Hubert Curien (IPHC), and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Subatomär fysik, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Nuclear Physics - Theory, Atom and Molecular Physics and Optics, Subatomic Physics, Atom- och molekylfysik och optik
Abstract

International audience; The reduced transition probabilities for the $4^+_1 \to 2^+_1$ and $2^+_1 \to 0^+_1$ transitions in $^{92}$Mo and $^{94}$Ru and for the $4^+_1 \to 2^+_1$ and $6^+_1 \to 4^+_1$ transitions in $^{90}$Zr have been determined in this experiment making use of a multinucleon transfer reaction. These results have been interpreted on the basis of realistic shell-model calculations in the $f_{5/2}, p_{3/2}, p_{1/2},$ and $g_{9/2}$ proton valence space. Only the combination of extensive lifetime information and large scale shell-model calculations allowed the extent of the seniority conservation in the $N=50 g_{9/2}$ orbital to be understood. The conclusion is that seniority is largely conserved in the first $\pi{g}_{9/2}$ orbital.

Published
2022

4. Onset of triaxial deformation in Zn-66 and properties of its first excited 0+state studied by means of Coulomb excitation

Author

Rocchini M, Hadynska-Klek K, Nannini A, Goasduff A, Zielinska M, Testov D, Rodriguez TR, Gargano A, Nowacki F, De Gregorio G, Naidja H, Sona P, Valiente-Dobon JJ, Mengoni D, John PR, Bazzacco D, Benzoni G, Boso A, Cocconi P, Chiari M, Doherty DT, Galtarossa F, Jaworski G, Komorowska M, Marchini N, Matejska-Minda M, Melon B, Menegazzo R, Napiorkowski PJ, Napoli D, Ottanelli M, Perego A, Ramina L, Rampazzo M, Recchia F, Riccetto S, Rosso D, Siciliano M, Rocchini, M, Hadynska-Klek, K, Nannini, A, Goasduff, A, Zielinska, M, Testov, D, Rodriguez, Tr, Gargano, A, Nowacki, F, De Gregorio, G, Naidja, H, Sona, P, Valiente-Dobon, Jj, Mengoni, D, John, Pr, Bazzacco, D, Benzoni, G, Boso, A, Cocconi, P, Chiari, M, Doherty, Dt, Galtarossa, F, Jaworski, G, Komorowska, M, Marchini, N, Matejska-Minda, M, Melon, B, Menegazzo, R, Napiorkowski, Pj, Napoli, D, Ottanelli, M, Perego, A, Ramina, L, Rampazzo, M, Recchia, F, Riccetto, S, Rosso, D, and Siciliano, M

Published
2021

5. Evidence for enhanced neutron-proton correlations from the level structure of the N = Z+1 nucleus Tc-87(43)44

Author

Liu, X, Cederwall, B, Qi, C, Wyss, RA, Aktas, O, Ertoprak, A, Zhang, W, Clement, E, de France, G, Ralet, D, Gadea, A, Goasduff, A, Jaworski, G, Kuti, I, Nyako, BM, Nyberg, J, Palacz, M, Wadsworth, R, Valiente-Dobon, JJ, Al-Azri, H, Nyberg, A Atac, Back, T, de Angelis, G, Doncel, M, Dudouet, J, Gottardo, A, Jurado, M, Ljungvall, J, Mengoni, D, Napoli, DR, Petrache, CM, Sohler, D, Timar, J, Barrientos, D, Bednarczyk, P, Benzoni, G, Birkenbach, B, Boston, AJ, Boston, HC, Burrows, I, Charles, L, Ciemala, M, Crespi, FCL, Cullen, DM, 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, RM, Podolyak, Zs, Pullia, A, Recchia, F, Reiter, P, Saillant, F, Salsac, MD, Sanchis, E, Simpson, J, Stezowski, O, Theisen, C, and Zielinska, M

Published
2021

6. Status Report on IS556: Spectroscopy of low-lying single-particle states in $^{81}$Zn populated in the $^{80}$Zn(d,p) reaction

Author

Orlandi, R, Raabe, R, Kroell, T, Van Duppen, P, de Witte, H, Poleshuchuk, O, Arokia Raj, A, Mentana, A, Youssef, A, Fracassetti, A, Renaud, M, Mouftahou, L, Makii, H, Hirose, K, von Schmid, M, Gernehaeuser, R, Muecher, D, Konki, J, Stora, T, Wenander, K, Blazhev, A, Reiter, P, Warr, N, Pain, SD, Jungclaus, A, Borge, MJG, Wimmer, K, Nacher, E, Tengblad, O, Chapman, R, Smith, JF, Spohr, K, Valiente Dobon, JJ, Gottardo, A, de Angelis, G, Napoli, D, Mengoni, D, Lenzi, SM, Lunardi, S, Fynbo, HOU, Johansen, J, Gaffney, L, Butler, P, O'Neill, G, Nara Singh, BS, Smallcombe, JT, Flavigny, F, Roger, T, Sahin, E, Grzywacz, R, Freeman, SJ, Fraile, LM, Kay, BP, Padgett, S, Rapisarda, E, Grahn, T, Greenlees, P, Illana, A, Pakarinen, J, Rahkila, P, Andreyev, AN, and Jenkins, DG

Subjects
Detectors and Experimental Techniques
Published
2020

7. Evidence for Coexisting Shapes through Lifetime Measurements in $^{98}\mathrm{Zr}$

Author

Singh, P, Korten, W, Hagen, TW, Görgen, A, Grente, L, Salsac, M-D, Farget, F, Clément, E, de France, G, Braunroth, T, Bruyneel, B, Celikovic, I, Delaune, O, Dewald, A, Dijon, A, Delaroche, J-P, Girod, M, Hackstein, M, Jacquot, B, Libert, J, Litzinger, J, Ljungvall, J, Louchart, C, Gottardo, A, Michelagnoli, C, Müller-Gatermann, C, Napoli, DR, Otsuka, T, Pillet, N, Recchia, F, Rother, W, Sahin, E, Siem, S, Sulignano, B, Togashi, T, Tsunoda, Y, Theisen, C, and Valiente-Dobon, JJ

Abstract

The lifetimes of the first excited 2^{+}, 4^{+}, and 6^{+} states in ^{98}Zr were measured with the recoil-distance Doppler shift method in an experiment performed at GANIL. Excited states in ^{98}Zr were populated using the fission reaction between a 6.2 MeV/u ^{238}U beam and a ^{9}Be target. The γ rays were detected with the EXOGAM array in correlation with the fission fragments identified by mass and atomic number in the VAMOS++ spectrometer. Our result shows a very small B(E2;2_{1}^{+}→0_{1}^{+}) value in ^{98}Zr, thereby confirming the very sudden onset of collectivity at N=60. The experimental results are compared to large-scale Monte Carlo shell model and beyond-mean-field calculations. The present results indicate the coexistence of two additional deformed shapes in this nucleus along with the spherical ground state. ispartof: PHYSICAL REVIEW LETTERS vol:121 issue:19 pages:192501-192501 ispartof: location:United States status: published

Published
2018

8. Beta delayed neutron emission from 134In to neutron single particle states in 133Sn

Author

Grzywacz, R, Madurga, M, Karny, M, Algora, A, Bundgaard, JJ, Bardayan, D, Benito, J, Benzoni, G, Brewer, N, Fijałkowska, A, Fraile, LM, Garcia Borge, MJ, Janas, Z, Jones, KL, King, T, Kolos, K, Korgul, A, Lozeva, R, Mazzocchi, C, Miernik, K, Pérez-Loureiro, D, Rasco, BC, Rykaczewski, K, Sánchez-Tembleque, V, Illana, A, Valiente-Dobon, JJ, Taylor, S, Udías, JM, Vedia, V, Warr, N, and DeWitte, H

Subjects
Detectors and Experimental Techniques
Published
2017

9. Experimental study of the isovector giant dipole resonance in Zr-80 and Rb-81

Author

ceruti, simone, Camera, F, Bracco, A, Mentana, A, Avigo, R, Benzoni, G, Blasi, N, Bocchi, G, Bottoni, S, Brambilla, S, Crespi, FCL, Giaz, A, Leoni, S, Million, B, Morales, AI, Nicolini, R, Pellegri, L, Riboldi, S, Wieland, O, Bazzacco, D, Ciemala, M, Farnea, E, Gottardo, A, Kmiecik, M, Maj, A, Mengoni, D, Michelagnoli, C, Modamio, V, Montanari, D, Napoli, D, Recchia, F, Sahin, E, Ur, C, Valiente-Dobon, JJ, Wasilewska, B, and Zieblinski, M

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The isovector giant dipole resonance (IVGDR) γ decay was measured in the compound nuclei 80Zr and 81Rb at an excitation energy of E∗=54 MeV. The fusion reaction 40Ca+40Ca at Ebeam=136 MeV was used to form the compound nucleus 80Zr, while the reaction 37Cl+44Ca at Ebeam=95 MeV was used to form the compound nucleus 81Rb at the same excitation energy. The IVGDR parameters extracted from the analysis were compared with the ones found at higher excitation energy (E∗=83 MeV). The comparison allows one to observe two different nuclear mechanisms: (i) the IVGDR intrinsic width remains constant with the excitation energy in the nucleus 81Rb; (ii) the isospin-violating spreading width (i.e., Coulomb spreading width) remains constant with the excitation energy in the nucleus 80Zr. The experimental setup used for the γ-ray detection was composed by the AGATA demonstrator array coupled to the large-volume LaBr3:Ce detectors of the HECTOR+ array. ispartof: Physical Review C vol:95 issue:1 status: published

Published
2017

10. Half-Life Systematics across the N=126 Shell Closure:Role of First-Forbidden Transitions in the beta Decay of Heavy Neutron-Rich Nuclei

Author

Morales, AI, Benlliure, J, Kurtukian-Nieto, T, Schmidt, K-H, Verma, S, Regan, PH, Podolyak, Z, Gorska, M, Pietri, S, Kumar, R, Casarejos, E, Al-Dahan, N, Algora, A, Alkhomashi, N, Alvarez-Pol, H, Benzoni, G, Blazhev, A, Boutachkov, P, Bruce, AM, Caceres, LS, Cullen, IJ, Bacelar, AMD, Doornenbal, P, Estevez-Aguado, ME, Farrelly, G, Fujita, Y, Garnsworthy, AB, Gelletly, W, Gerl, J, Grebosz, J, Hoischen, R, Kojouharov, I, Kurz, N, Lalkovski, S, Liu, Z, Mihai, C, Molina, F, Muecher, D, Rubio, B, Shaffner, H, Steer, SJ, Tamii, A, Tashenov, S, Valiente-Dobon, JJ, Walker, PM, Wollersheim, HJ, and Woods, PJ

Subjects
LIVES, SPECTROSCOPY, AU-205, 1ST MEASUREMENT, Nuclear Theory, ELEMENTS, ISOTOPES, ASTROPHYSICAL R-PROCESS, Nuclear Experiment
Abstract

This Letter reports on a systematic study of beta-decay half-lives of neutron-rich nuclei around doubly magic Pb-208. The lifetimes of the 126-neutron shell isotone Pt-204 and the neighboring Ir200-202, Pt-203, Au-204 are presented together with other 19 half-lives measured during the "stopped beam" campaign of the rare isotope investigations at GSI collaboration. The results constrain the main nuclear theories used in calculations of r-process nucleosynthesis. Predictions based on a statistical macroscopic description of the first-forbidden beta strength reveal significant deviations for most of the nuclei with N

Published
2014

11. New Isomers in the Neutron-Rich Region Beyond Pb-208

Author

Gottardo, A, Valiente-Dobon, JJ, Benzoni, G, Gadea, A, Lunardi, S, Boutachkov, P, Bruce, AM, Gorska, M, Grebosz, J, Pietri, S, Podolyak, Z, Pfuetzner, M, Regan, PH, Weick, H, Alcantara Nunez, J, Algora, A, Al-Dahan, N, de Angelis, G, Ayyad, Y, Alkhomashi, N, Allegro, PRP, Bazzacco, D, Benlliure, J, Bowry, M, Bracco, A, Bunce, M, Camera, F, Casarejos, E, Cortes, ML, Crespi, FCL, Corsi, A, Bacelar, AMD, Deo, AY, Domingo-Pardo, C, Doncel, M, Dombradi, Z, Engert, T, Eppinger, K, Farrelly, GF, Farinon, F, Farnea, E, Geissel, H, Gerl, J, Goel, N, Gregor, E, Habermann, T, Hoischen, R, Janik, R, John, PR, Klupp, S, Kojouharov, I, Kurz, N, Lenzi, SM, Leoni, S, Mandal, S, Menegazzo, R, Mengoni, D, Million, B, Modamio, V, Morales, AI, Napoli, DR, Naqvi, F, Nicolini, R, Nociforo, C, Prochazka, A, Prokopowicz, W, Recchia, F, Ribas, RV, Reed, MW, Rudolph, D, Sahin, E, Schaffner, H, Sharma, A, Sitar, B, Siwal, D, Steiger, K, Strmen, P, Swan, TPD, Szarka, I, Ur, CA, Walker, PM, Wieland, O, Wollersheim, H-J, Bizzeti, PG, Kabana, S, Bucci, C, Chiari, M, Dainese, A, DiNezza, P, Nannini, A, Signorini, C, and ValienteDobon, JJ

Published
2014

12. beta-delayed gamma-ray spectroscopy of Au-203,Au-204 and Pt200-202

Author

Morales, AI, Benlliure, J, Gorska, M, Grawe, H, Verma, S, Regan, PH, Podolyak, Z, Pietri, S, Kumar, R, Casarejos, E, Algora, A, Alkhomashi, N, Alvarez-Pol, H, Benzoni, G, Blazhev, A, Boutachkov, P, Bruce, AM, Caceres, LS, Cullen, IJ, Bacelar, AMD, Doornenbal, P, Estevez-Aguado, ME, Farrelly, G, Fujita, Y, Garnsworthy, AB, Gelletly, W, Gerl, J, Grebosz, J, Hoischen, R, Kojouharov, I, Kurz, N, Lalkovski, S, Liu, Z, Mihai, C, Molina, F, Muecher, D, Prokopowicz, W, Rubio, B, Schaffner, H, Steer, SJ, Tamii, A, Tashenov, S, Valiente-Dobon, JJ, Walker, PM, Wollersheim, HJ, and Woods, PJ

Published
2013

13. Cross-coincidences in the 136Xe+208Pb Deep-inelastic Reaction

Author

Kempley, Rs, Podolyak, Z, Bazzacco, D, Gadea, A, Farnea, E, Valiente Dobon JJ, Mengoni, Daniele, Recchia, Francesco, Sahin, E, Gottardo, Andrea, Corradi, L, Fioretto, E, Szilner, S, Anagnostatou, V, Al Dahan, N, De Angelis, G, Bellato, M, Berti, B, Bortolato, D, Bowry, M, Bunce, M, Cocconi, P, Colombo, A, Dombradi, Z, Fanin, C, Gelletly, W, Isocrate, R, Ketenci, S, Kondratyev, N, Kuti, I, Mason, Pjr, Michelagnoli, Caterina, Mijatovic, T, Molini, P, Montagnoli, Giovanna, Montanari, Daniele, Nakhostin, M, Napoli, Dr, Pellegrini, D, Regan, Ph, Rampazzo, G, Reiter, P, Rosso, D, Scarlassara, Fernando, Stefanini, A, Singh, P, Toniolo, N, and Ur, Ca

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Nuclear Experiment, spectroemeter, nuclaer spectroscopy
Abstract

A deep-inelastic reaction experiment with a 136Xe beam impinging on a 208Pb target was performed. Gamma rays were detected with the AGATA Demonstrator. The beam-like fragments were identified with the PRISMA spectrometer on event- by-event basis. Doppler corrected \gamma -ray spectra were obtained for both the identified beam-like nuclei and for the target-like binary partners. This cross-coincidence method can be used to study heavy target-like nuclei which cannot be unambiguously identified in the spectrometer due to their large masses and low velocities.

Published
2011

14. g-factor measurements at RISING: The cases of Sn-127 and Sn-128

Author

Atanasova, L, Balabanski, DL, Chamoli, SK, Hass, M, Simpson, GS, Bazzacco, D, Becker, F, Bednarczyk, P, Benzoni, G, Blasi, N, Blazhev, A, Bracco, A, Brandau, C, Caceres, L, Camera, F, Crespi, FCL, Detistov, P, Doornenbal, P, Fahlander, C, Farnea, E, Georgiev, G, Gerl, J, Gladnishki, KA, Gorska, M, Grebosz, J, Hoischen, R, Ilie, G, Ionescu-Bujor, M, Iordachescu, A, Jungclaus, A, Lo Bianco, G, Kmiecik, M, Kojouharov, I, Kurz, N, Lakshmi, S, Lozeva, R, Maj, A, Montanari, D, Neyens, G, Pfuetzner, M, Pietri, S, Podolyak, Z, Prokopowicz, W, Rudolph, D, Rusev, G, Saito, TR, Saltarelli, A, Schaffner, H, Schwengner, R, Tashenov, S, Valiente-Dobon, JJ, Vermeulen, N, Walker, J, Werner-Malento, E, Wieland, O, Wollersheim, HJ, Grawe, H, and Hjorth-Jensen, M

Abstract

We report on g-factor measurements of the 19/2+ T1/2=4.5(3) μs isomer in 127Sn and the 10+ T1/2=2.69(23) μs isomer in 128Sn. These isomers were produced and spin-aligned in relativistic heavy-ion fragmentation at GSI and were selected and separated by the GSI fragment separator (FRS). The γ-rays of the isomeric decay were detected by the RISING γ-ray spectrometer. The method of time-differential perturbed angular distributions was utilized. The measured g-factors, g(19/2+; 127Sn)=− 0.17(2) and g(10+; 128Sn)=− 0.20(4), are compared with shell model calculations. The measured g-factors confirm the predominantly νh11/2− 2 and ν(s1/2− 1h11/2−2) character of the 10+ and 19/2− isomers in 128Sn and 127Sn, respectively. The results demonstrate the feasibility of the method for similar measurements in exotic neutron-rich nuclei.

Published
2010

15. gamma-ray spectroscopy of Cl-38(17) using grazing reactions

Author

O'Donnell, D, Chapman, R, Liang, X, Azaiez, F, Haas, F, Beghini, S, Behera, Br, Burns, M, Caurier, E, Corradi, L, Curien, D, Deacon, An, Dombradi, Zs, Farnea, E, Fioretto, E, Gadea, A, Hodsdon, A, Ibrahim, F, Jungclaus, A, Keyes, K, Latina, A, Marginean, N, Montagnoli, Giovanna, Napoli, Dr, Nowacki, F, Ollier, J, Papenberg, A, Pollarolo, G, Salsac, Md, Scarlassara, Fernando, Smith, Jf, Spohr, Km, Stanoiu, M, Stefanini, Am, Szilner, S, Trotta, M, VALIENTE DOBON JJ, Verney, D, and Wang, Zm

Published
2010

16. Isomeric decay spectroscopy of the Bi-217 isotope

Author

Gottardo, A, Valiente-Dobon, JJ, Benzoni, G, Lunardi, S, Gadea, A, Algora, A, Al-Dahan, N, de Angelis, G, Ayyad, Y, Bazzacco, D, Benlliure, J, Boutachkov, P, Bowry, M, Bracco, A, Bruce, AM, Bunce, M, Camera, F, Casarejos, E, Cortes, ML, Crespi, FCL, Corsi, A, Bacelar, AMD, Deo, AY, Domingo-Pardo, C, Doncel, M, Engert, T, Eppinger, K, Farrelly, GF, Farinon, F, Farnea, E, Geissel, H, Gerl, J, Goel, N, Gorska, M, Grebosz, J, Gregor, E, Habermann, T, Hoischen, R, Janik, R, John, PR, Klupp, S, Kojouharov, I, Kurz, N, Lenzi, SM, Leoni, S, Mandal, S, Menegazzo, R, Mengoni, D, Million, B, Modamio, V, Morales, AI, Napoli, DR, Naqvi, F, Nicolini, R, Nociforo, C, Pfuetzner, M, Pietri, S, Podolyak, Z, Prochazka, A, Prokopowicz, W, Recchia, F, Regan, PH, Reed, MW, Rudolph, D, Sahin, E, Schaffner, H, Sharma, A, Sitar, B, Siwal, D, Steiger, K, Strmen, P, Swan, TPD, Szarka, I, Ur, CA, Walker, PM, Weick, H, Wieland, O, Wollersheim, H-J, Gottardo, A, Valiente-Dobon, JJ, Benzoni, G, Lunardi, S, Gadea, A, Algora, A, Al-Dahan, N, de Angelis, G, Ayyad, Y, Bazzacco, D, Benlliure, J, Boutachkov, P, Bowry, M, Bracco, A, Bruce, AM, Bunce, M, Camera, F, Casarejos, E, Cortes, ML, Crespi, FCL, Corsi, A, Bacelar, AMD, Deo, AY, Domingo-Pardo, C, Doncel, M, Engert, T, Eppinger, K, Farrelly, GF, Farinon, F, Farnea, E, Geissel, H, Gerl, J, Goel, N, Gorska, M, Grebosz, J, Gregor, E, Habermann, T, Hoischen, R, Janik, R, John, PR, Klupp, S, Kojouharov, I, Kurz, N, Lenzi, SM, Leoni, S, Mandal, S, Menegazzo, R, Mengoni, D, Million, B, Modamio, V, Morales, AI, Napoli, DR, Naqvi, F, Nicolini, R, Nociforo, C, Pfuetzner, M, Pietri, S, Podolyak, Z, Prochazka, A, Prokopowicz, W, Recchia, F, Regan, PH, Reed, MW, Rudolph, D, Sahin, E, Schaffner, H, Sharma, A, Sitar, B, Siwal, D, Steiger, K, Strmen, P, Swan, TPD, Szarka, I, Ur, CA, Walker, PM, Weick, H, Wieland, O, and Wollersheim, H-J

Published
2014

17. Half-Life Systematics across the N=126 Shell Closure: Role of First-Forbidden Transitions in the beta Decay of Heavy Neutron-Rich Nuclei

Author

Morales, AI, Benlliure, J, Kurtukian-Nieto, T, Schmidt, K-H, Verma, S, Regan, PH, Podolyak, Z, Gorska, M, Pietri, S, Kumar, R, Casarejos, E, Al-Dahan, N, Algora, A, Alkhomashi, N, Alvarez-Pol, H, Benzoni, G, Blazhev, A, Boutachkov, P, Bruce, AM, Caceres, LS, Cullen, IJ, Bacelar, AMD, Doornenbal, P, Estevez-Aguado, ME, Farrelly, G, Fujita, Y, Garnsworthy, AB, Gelletly, W, Gerl, J, Grebosz, J, Hoischen, R, Kojouharov, I, Kurz, N, Lalkovski, S, Liu, Z, Mihai, C, Molina, F, Muecher, D, Rubio, B, Shaffner, H, Steer, SJ, Tamii, A, Tashenov, S, Valiente-Dobon, JJ, Walker, PM, Wollersheim, HJ, Woods, PJ, Morales, AI, Benlliure, J, Kurtukian-Nieto, T, Schmidt, K-H, Verma, S, Regan, PH, Podolyak, Z, Gorska, M, Pietri, S, Kumar, R, Casarejos, E, Al-Dahan, N, Algora, A, Alkhomashi, N, Alvarez-Pol, H, Benzoni, G, Blazhev, A, Boutachkov, P, Bruce, AM, Caceres, LS, Cullen, IJ, Bacelar, AMD, Doornenbal, P, Estevez-Aguado, ME, Farrelly, G, Fujita, Y, Garnsworthy, AB, Gelletly, W, Gerl, J, Grebosz, J, Hoischen, R, Kojouharov, I, Kurz, N, Lalkovski, S, Liu, Z, Mihai, C, Molina, F, Muecher, D, Rubio, B, Shaffner, H, Steer, SJ, Tamii, A, Tashenov, S, Valiente-Dobon, JJ, Walker, PM, Wollersheim, HJ, and Woods, PJ

Published
2014

18. beta(-)-delayed spectroscopy of neutron-rich tantalum nuclei: Shape evolution in neutron-rich tungsten isotopes

Author

Alkhomashi, N, Regan, PH, Podolyak, Z, Pietri, S, Garnsworthy, AB, Steer, SJ, Benlliure, J, Caserejos, E, Casten, RF, Gerl, J, Wollersheim, HJ, Grebosz, J, Farrelly, G, Gorska, M, Kojouharov, I, Schaffner, H, Algora, A, Benzoni, G, Blazhev, A, Boutachkov, P, Bruce, AM, Bacelar, AMD, Cullen, IJ, Caceres, L, Doornenbal, P, Estevez, ME, Fujita, Y, Gelletly, W, Hoischen, R, Kumar, R, Kurz, N, Lalkovski, S, Liu, Z, Mihai, C, Molina, F, Morales, AI, Muecher, D, Prokopowicz, W, Rubio, B, Shi, Y, Tamii, A, Tashenov, S, Valiente-Dobon, JJ, Walker, PM, Woods, PJ, and Xu, FR

Published
2009

19. Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67

Author

Orlandi, R, DE ANGELIS, G, Bizzeti, Pg, Lunardi, Santo, Gadea, A, BIZZETI SONA AM, Bracco, A, Brandolini, Franco, Carpenter, Mp, Chiara, Cj, DELLA VEDOVA, Francesca, Farnea, E, Greene, Jp, Lenzi, SILVIA MONICA, Leoni, S, Lister, Cj, Marginean, N, Mengoni, Daniele, Napoli, Dr, Singh, Bsn, Pechenaya, Ol, Recchia, Francesco, Reviol, W, Sahin, E, Sarantites, Dg, Seweryniak, D, Tonev, D, Ur, Ca, VALIENTE DOBON JJ, Wadsworth, R, Wiedemann, Kt, and Zhu, S.

Published
2009

20. Nuclear structure 'southeast' of Pb-208: Isomeric states in Hg-208 and Tl-209

Author

Al-Dahan, N, Podolyak, Z, Regan, PH, Gorska, M, Grawe, H, Maier, KH, Gerl, J, Pietri, SB, Wollersheim, HJ, Alkhomashi, N, Deo, AY, Bacelar, AMD, Farrelly, G, Steer, SJ, Bruce, AM, Boutachkov, P, Domingo-Pardo, C, Algora, A, Benlliure, J, Bracco, A, Calore, E, Casarejos, E, Cullen, IJ, Detistov, P, Dombradi, Z, Doncel, M, Farinon, F, Gelletly, W, Geissel, H, Goel, N, Grebosz, J, Hoischen, R, Kojouharov, I, Kurz, N, Lalkovski, S, Leoni, S, Molina, F, Montanari, D, Morales, AI, Musumarra, A, Napoli, DR, Nicolini, R, Nociforo, C, Prochazka, A, Prokopowicz, W, Rubio, B, Rudolph, D, Schaffner, H, Strmen, P, Szarka, I, Swan, T, Thomas, JS, Valiente-Dobon, JJ, Verma, S, Walker, PM, and Weick, H

Published
2009

21. New sub-mu s isomers in Sn-125,Sn-127,Sn-129 and isomer systematics of Sn124-130

Author

Lozeva Lozeva, Radomira, Grawe, H, Neyens, Gerda, Atanasova, LA, Balabanski, DL, Bazzacco, D, Becker, F, Bednarczyk, P, Benzoni, G, Blasi, N, Blazhev, A, Bracco, A, Brandau, C, Caceres, L, Camera, F, Chamoli, SK, Crespi, FCL, Daugas, J-M, Detistov, P, De Rydt, Marieke, Doornenbal, P, Fahlander, C, Farnea, E, Georgiev, G, Gerl, J, Gladnishki, KA, Gorska, M, Grebosz, J, Hass, M, Hoischen, R, Ilie, G, Ionescu-Bujor, M, Iordachescu, A, Jungclaus, A, Kmiecik, M, Kojouharov, I, Kurz, N, Lakshmi, SP, Lo Bianco, G, Mallion, Stephen, Maj, A, Montanari, D, Perru, O, Pfuetzner, M, Pietri, S, Pinston, JA, Podolyak, Zs, Prokopowicz, W, Rudolph, D, Rusev, G, Saitoh, TR, Saltarelli, A, Schaffner, H, Schwengner, R, Tashenov, S, Turzo, K, Valiente-Dobon, JJ, Vermeulen, Nele, Walker, J, Werner-Malento, E, Wieland, O, and Wollersheim, H-J

Subjects
transition-probabilities, isomer lifetimes, heavy-ion collisions, 125-129Sn isomers, relativistic U-fission, yrast isomers, g-RISING, gsi, nuclei, gamma-ray, energy-levels, beta-decay, isotopes, detectors
Abstract

New sub-mu s isomers have been observed in the neutron-rich Sn isotopes. Sn-125,Sn-127,Sn-129 nuclei have been produced in a relativistic fission reaction of U-238 on a Be-9 target at 750 A.MeV and by the fragmentation of Xe-136 at 600 A.MeV populating high-spin yrast states. In addition to the already known mu s isomers, three new ones with sub-mu s half-lives have been observed. These yrast isomers are the high-spin members of the nu(d(3/2)(-1)h(11/2)(-2)) and nu h(11/2)(-n), seniority v = 3 multiplets leading to isomeric (23/2(+)) and (27/2(-)) states, respectively. Added to the already known 19/2(+)mu s isomers in this region the current work completes the systematic information of neutron-hole excitations toward the filling of the last h(11/2) orbital at N = 82. The results are discussed in the framework of state-of-the-art shell-model calculations using realistic interactions. ispartof: Physical Review C, Nuclear Physics vol:77 issue:6 pages:1-15 status: published

Published
2008

22. New sub-mu s isomers in Sn-125,Sn-127,Sn-129 and isomer systematics of Sn124-130

Author

Lozeva, RL, Simpson, GS, Grawe, H, Neyens, G, Atanasova, LA, Balabanski, DL, Bazzacco, D, Becker, F, Bednarczyk, P, Benzoni, G, Blasi, N, Blazhev, A, Bracco, A, Brandau, C, Caceres, L, Camera, F, Chamoli, SK, Crespi, FCL, Daugas, J-M, Detistov, P, De Rydt, M, Doornenbal, P, Fahlander, C, Farnea, E, Georgiev, G, Gerl, J, Gladnishki, KA, Gorska, M, Grebosz, J, Hass, M, Hoischen, R, Ilie, G, Ionescu-Bujor, M, Iordachescu, A, Jolie, J, Jungclaus, A, Kmiecik, M, Kojouharov, I, Kurz, N, Lakshmi, SP, Lo Bianco, G, Mallion, S, Maj, A, Montanari, D, Perru, O, Pfuetzner, M, Pietri, S, Pinston, JA, Podolyak, Zsolt, Prokopowicz, W, Rudolph, D, Rusev, G, Saitoh, TR, Saltarelli, A, Schaffner, H, Schwengner, R, Tashenov, S, Turzo, K, Valiente-Dobon, JJ, Vermeulen, N, Walker, J, Werner-Malento, E, Wieland, O, and Wollersheim, H-J

Published
2008

23. Yrast structure of the neutron-rich N=31 isotones (51)Ca and (52)Sc

Author

Fornal, B, Janssens, RVF, Broda, R, Marginean, N, Beghini, S, Corradi, L, Carpenter, MP, De Angelis, G, Della Vedova, F, Farnea, E, Fioretto, E, Gadea, A, Guiot, B, Honma, M, Krolas, W, Lauritsen, T, Lunardi, S, Mantica, PF, Mason, P, Montagnoli, G, Napoli, DR, Otsuka, Taka, Pawlat, T, Pollarolo, Giulia, Scarlassara, F, Stefanini, AM, Seweryniak, D, Szilner, S, Ur, CA, Trotta, M, Valiente-Dobon, JJ, Wrzesinski, J, and Zhu, S

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The low-lying yrast states in the 51 Ca and 52 Sc nuclei were investigated to obtain information on the evolution of the p 1 / 2 and f 5 / 2 neutron single-particle orbitals in neutron-rich nuclei near proton number Z = 20. Level structures associated with neutron excitations into these two orbitals and with proton excitations across the Z = 20 shell gap were identified. Shell-model calculations with the recently proposed GXPF1A interaction account reasonably well for the fp -shell states. The energy separation between the νp 1 / 2 and νf 5 / 2 orbitals in the Ca isotopes appears to be overestimated by the GXPF1A Hamiltonian. ispartof: Physical Review C, Nuclear Physics vol:77 issue:1 status: published

Published
2008

24. Coulomb excitation of neutron-rich Zn isotopes: First observation of the 2(1)(+) state in Zn-80

Author

Van de Walle, Jarno, Aksouh, F, Ames, F, Behrens, Thomas, Bildstein, V, Blazhev, Andrei, Cederkaell, Joakim, Clement, Emmanuel, Cocolios, Thomas Elias, Davinson, T, Delahaye, Pierre, Eberth, J, Ekstrom, Andreas, Fedorov, Dima V, Fedosseev, Valentin N, Fraile, Luis M, Franchoo, Serge, Gernhauser, R, Georgiev, Georgi, Habs, D, Heyde, Kris, Huber, Gerard, Huyse, Marc, Ibrahim, F, Ivanov, Oleg, Iwanicki, J, Jolie, J, Kester, O, Koester, Ulli, Kroell, T, Kruecken, R, Lauer, M, Lisetskiy, AF, Lutter, R, Marsh, Bruce A, Mayet, Pascale, Niedermaier, Oliver, Nilsson, T, Pantea, M, Perru, O, Raabe, Riccardo, Reiter, P, Sawicka, Maria, Scheit, H, Schrieder, G, Schwalm, D, Seliverstov, Maxim D, Sieber, T, Sletten, G, Smirnova, N, Stanoiu, M, Stefanescu, Irina, Thomas, Jean-Charles, Valiente-Dobon, JJ, Van Duppen, Piet, Verney, D, Voulot, D, Warr, N, Weisshaar, D, Wenander, Frederik, Wolf, BH, and Zielinska, Maria

Subjects
post-accelerated beams, radioactive beams, Coulomb excitation, REX-ISOLDE, zinc, beams, Miniball, decay
Abstract

Neutron-rich, radioactive Zn isotopes were investigated at the Radioactive Ion Beam facility REX-ISOLDE (CERN) using low-energy Coulomb excitation. The energy of the 2(1)(+) state in Zn-78 could be firmly established and for the first time the 2(+)-> 0(1)(+) transition in Zn-80 was observed at 1492(1) keV. B(E2,2(1)(+)-> 0(1)(+)) values were extracted for Zn-74,Zn-76,Zn-78,Zn-80 and compared to large scale shell model calculations. With only two protons outside the Z=28 proton core, Zn-80 is the lightest N=50 isotone for which spectroscopic information has been obtained to date. Two sets of advanced shell model calculations reproduce the observed B(E2) systematics. The results for N=50 isotones indicate a good N=50 shell closure and a strong Z=28 proton core polarization. The new results serve as benchmarks to establish theoretical models, predicting the nuclear properties of the doubly magic nucleus Ni-78. ispartof: Physical Review Letters vol:99 issue:14 pages:1-4 ispartof: location:United States status: published

Published
2007

25. Observation of an isomeric state in Au-197

Author

Wheldon, C, Valiente-Dobon, JJ, Regan, PH, Pearson, CJ, Wu, CY, Smith, JF, Macchiavelli, AO, Cline, D, Chakrawarthy, RS, Chapman, R, Cromaz, M, Fallon, P, Freeman, SJ, Gelletly, W, Goergen, AG, Hayes, AB, Hua, H, Langdown, SD, Lee, IY, Liang, X, Podolyak, Z, Sletten, G, Teng, R, Ward, D, Warner, DD, and Yamamoto, AD

Published
2006

27. Lifetime measurements in neutron-rich Co-63,Co-65 isotopes using the AGATA demonstrator

Author

Modamio, V, Valiente-Dobon, JJ, Lunardi, S, Lenzi, SM, Gadea, A, Mengoni, D, Bazzacco, D, Algora, A, Bednarczyk, P, Benzoni, G, Birkenbach, B, Bracco, A, Bruyneel, B, Burger, A, Chavas, J, Corradi, L, Crespi, FCL, de Angelis, G, Desesquelles, P, de France, G, Depalo, R, Dewald, A, Doncel, M, Erduran, MN, Farnea, E, Fioretto, E, Fransen, C, Geibel, K, Gottardo, A, Gorgen, A, Habermann, T, Hackstein, M, Hess, H, Hueyuek, T, John, PR, Jolie, J, Judson, D, Jungclaus, A, Karkour, N, Kempley, R, Leoni, S, Melon, B, Menegazzo, R, Michelagnoli, C, Mijatovic, T, Million, B, Moeller, O, Montagnoli, G, Montanari, D, Nannini, A, Napoli, DR, Podolyak, Z, Pollarolo, G, Pullia, A, Quintana, B, Recchia, F, Reiter, P, Rosso, D, Rother, W, Sahin, E, Salsac, MD, Scarlassara, F, Sieja, K, Soderstrom, PA, Stefanini, AM, Stezowski, O, Szilner, S, Theisen, C, Travers, B, Ur, CA, Modamio, V, Valiente-Dobon, JJ, Lunardi, S, Lenzi, SM, Gadea, A, Mengoni, D, Bazzacco, D, Algora, A, Bednarczyk, P, Benzoni, G, Birkenbach, B, Bracco, A, Bruyneel, B, Burger, A, Chavas, J, Corradi, L, Crespi, FCL, de Angelis, G, Desesquelles, P, de France, G, Depalo, R, Dewald, A, Doncel, M, Erduran, MN, Farnea, E, Fioretto, E, Fransen, C, Geibel, K, Gottardo, A, Gorgen, A, Habermann, T, Hackstein, M, Hess, H, Hueyuek, T, John, PR, Jolie, J, Judson, D, Jungclaus, A, Karkour, N, Kempley, R, Leoni, S, Melon, B, Menegazzo, R, Michelagnoli, C, Mijatovic, T, Million, B, Moeller, O, Montagnoli, G, Montanari, D, Nannini, A, Napoli, DR, Podolyak, Z, Pollarolo, G, Pullia, A, Quintana, B, Recchia, F, Reiter, P, Rosso, D, Rother, W, Sahin, E, Salsac, MD, Scarlassara, F, Sieja, K, Soderstrom, PA, Stefanini, AM, Stezowski, O, Szilner, S, Theisen, C, Travers, B, and Ur, CA

Abstract

Lifetimes of the low-lying (11/2-) states in 63,65Co have been measured employing the recoil distance doppler shift method (RDDS) with the AGATA γ-ray array and the PRISMA mass spectrometer. These nuclei were populated via a multinucleon transfer reaction by bombarding a 238U target with a beam of 64Ni. The experimental B(E2) reduced transition probabilities for 63,65Co are well reproduced by large-scale shell-model calculations that predict a constant trend of the B(E2) values up to the N=40 67Co isotope

Published
2013

28. Spectroscopy of neutron-rich Dy-168,Dy-170: Yrast band evolution close to the NpNn valence maximum

Author

Soderstrom, P-A, Nyberg, J, Regan, PH, Algora, A, de Angelis, G, Ashley, SF, Aydin, S, Bazzacco, D, Casperson, RJ, Catford, WN, Cederkall, J, Chapman, R, Corradi, L, Fahlander, C, Farnea, E, Fioretto, E, Freeman, SJ, Gadea, A, Gelletly, W, Gottardo, A, Grodner, E, He, CY, Jones, GA, Keyes, K, Labiche, M, Liang, X, Liu, Z, Lunardi, S, Marginean, N, Mason, P, Menegazzo, R, Mengoni, D, Montagnoli, G, Napoli, D, Ollier, J, Pietri, S, Podolyak, Z, Pollarolo, G, Recchia, F, Sahin, E, Scarlassara, F, Silvestri, R, Smith, JF, Spohr, K-M, Steer, SJ, Stefanini, AM, Szilner, S, Thompson, NJ, Tveten, GM, Ur, CA, Valiente-Dobon, JJ, Werner, V, Williams, SJ, Xu, FR, Zhu, JY, Soderstrom, P-A, Nyberg, J, Regan, PH, Algora, A, de Angelis, G, Ashley, SF, Aydin, S, Bazzacco, D, Casperson, RJ, Catford, WN, Cederkall, J, Chapman, R, Corradi, L, Fahlander, C, Farnea, E, Fioretto, E, Freeman, SJ, Gadea, A, Gelletly, W, Gottardo, A, Grodner, E, He, CY, Jones, GA, Keyes, K, Labiche, M, Liang, X, Liu, Z, Lunardi, S, Marginean, N, Mason, P, Menegazzo, R, Mengoni, D, Montagnoli, G, Napoli, D, Ollier, J, Pietri, S, Podolyak, Z, Pollarolo, G, Recchia, F, Sahin, E, Scarlassara, F, Silvestri, R, Smith, JF, Spohr, K-M, Steer, SJ, Stefanini, AM, Szilner, S, Thompson, NJ, Tveten, GM, Ur, CA, Valiente-Dobon, JJ, Werner, V, Williams, SJ, Xu, FR, and Zhu, JY

Published
2010

29. Proton-hole excitation in the closed shell nucleus Au-205

Author

Podolyak, Z, Farrelly, GF, Regan, PH, Garnsworthy, AB, Steer, SJ, Gorska, M, Benlliure, J, Casarejos, E, Pietri, S, Gerl, J, Wollersheim, HJ, Kumar, R, Molina, F, Algora, A, Alkhomashi, N, Benzoni, G, Blazhev, A, Boutachkov, P, Bruce, AM, Caceres, L, Cullen, IJ, Bacelar, AMD, Doornenbal, P, Estevez, ME, Fujita, Y, Gelletly, W, Geissel, H, Grawe, H, Grebosz, J, Hoischen, R, Kojouharov, I, Lalkovski, S, Liu, Z, Maier, KH, Mihai, C, Muecher, D, Rubio, B, Schaffner, H, Tamii, A, Tashenov, S, Valiente-Dobon, JJ, Walker, PM, Woods, PJ, Podolyak, Z, Farrelly, GF, Regan, PH, Garnsworthy, AB, Steer, SJ, Gorska, M, Benlliure, J, Casarejos, E, Pietri, S, Gerl, J, Wollersheim, HJ, Kumar, R, Molina, F, Algora, A, Alkhomashi, N, Benzoni, G, Blazhev, A, Boutachkov, P, Bruce, AM, Caceres, L, Cullen, IJ, Bacelar, AMD, Doornenbal, P, Estevez, ME, Fujita, Y, Gelletly, W, Geissel, H, Grawe, H, Grebosz, J, Hoischen, R, Kojouharov, I, Lalkovski, S, Liu, Z, Maier, KH, Mihai, C, Muecher, D, Rubio, B, Schaffner, H, Tamii, A, Tashenov, S, Valiente-Dobon, JJ, Walker, PM, and Woods, PJ

Published
2009

30. gamma-ray spectroscopy of the neutron-rich nuclei (89)Rb, (92)Y, and (93)Y with multinucleon transfer reactions

Author

Bucurescu, D, Rusu, C, Marginean, N, Ur, CA, de Angelis, G, Corradi, L, Bazzacco, D, Beghini, S, Della Vedova, F, Duchene, G, Farnea, E, Faul, T, Fioretto, E, Gadea, A, Gelletly, W, Guiot, B, Ionescu-Bujor, M, Iordachescu, A, Landown, SD, Lenzi, SM, Lunardi, S, Mason, P, Mihai, C, Marginean, R, Menegazzo, R, Montagnoli, G, Napoli, D, Podolyak, Z, Regan, PH, Scarlassara, F, Stefanini, AM, Suliman, G, Szilner, S, Trotta, M, Valiente-Dobon, JJ, Zhang, YH, Bucurescu, D, Rusu, C, Marginean, N, Ur, CA, de Angelis, G, Corradi, L, Bazzacco, D, Beghini, S, Della Vedova, F, Duchene, G, Farnea, E, Faul, T, Fioretto, E, Gadea, A, Gelletly, W, Guiot, B, Ionescu-Bujor, M, Iordachescu, A, Landown, SD, Lenzi, SM, Lunardi, S, Mason, P, Mihai, C, Marginean, R, Menegazzo, R, Montagnoli, G, Napoli, D, Podolyak, Z, Regan, PH, Scarlassara, F, Stefanini, AM, Suliman, G, Szilner, S, Trotta, M, Valiente-Dobon, JJ, and Zhang, YH

Published
2007

31. Multi-quasi particle states in184 W via multi-nucleon transfer

Author

Wheldon, C, Valiente-Dobon, JJ, Regan, PH, Pearson, CJ, Wu, CY, Smith, JF, Macchiavelli, AO, Cline, D, Chakrawarthy, RS, Chapman, R, Cromaz, M, Fallon, P, Freeman, SJ, Gorgen, A, Gelletly, W, Hayes, A, Hua, H, Langdown, SD, Lee, IY, Liang, X, Podolyak, Z, Sletten, G, Teng, R, Ward, D, Warner, DD, Yamamoto, AD, Wheldon, C, Valiente-Dobon, JJ, Regan, PH, Pearson, CJ, Wu, CY, Smith, JF, Macchiavelli, AO, Cline, D, Chakrawarthy, RS, Chapman, R, Cromaz, M, Fallon, P, Freeman, SJ, Gorgen, A, Gelletly, W, Hayes, A, Hua, H, Langdown, SD, Lee, IY, Liang, X, Podolyak, Z, Sletten, G, Teng, R, Ward, D, Warner, DD, and Yamamoto, AD

Published
2004

32. 136Ba studied via deep-inelastic collisions:Identification of the (vh(11/2))(10+)(-2) isomer

Author

Valiente-Dobon, JJ, Regan, RH, Wheldon, C, Wu, CY, Yoshinaga, N, Higashiyama, K, Smith, JF, Cline, D, Chakrawarthy, RS, Chapman, R, Cromaz, M, Fallon, P, Freeman, SJ, Gorgen, A, Gelletly, W, Hayes, A, Hua, H, Langdown, SD, Lee, IY, Liang, X, Macchiavelli, AO, Pearson, CJ, Podolyak, Z, Sletten, G, Teng, R, Ward, D, Warner, DD, Yamamoto, AD, Valiente-Dobon, JJ, Regan, RH, Wheldon, C, Wu, CY, Yoshinaga, N, Higashiyama, K, Smith, JF, Cline, D, Chakrawarthy, RS, Chapman, R, Cromaz, M, Fallon, P, Freeman, SJ, Gorgen, A, Gelletly, W, Hayes, A, Hua, H, Langdown, SD, Lee, IY, Liang, X, Macchiavelli, AO, Pearson, CJ, Podolyak, Z, Sletten, G, Teng, R, Ward, D, Warner, DD, and Yamamoto, AD

Published
2004

33. Population of Os-195 via a deep-inelastic reaction

Author

Valiente-Dobon, Jj, Wheldon, C., Regan, Ph, Wu, Cy, Cline, D., Andreoiu, C., Chapman, R., Fallon, P., Sean Freeman, Hayes, A., Hua, H., Langdown, Sd, Lee, Iy, Liang, X., Macchiavelli, Ao, Pearson, Cj, Podolyak, Z., Sletten, G., Smith, Jf, Svensson, Ce, Teng, R., Ward, D., Warner, Dd, Yamamoto, Ad, Bijker, R., Casten, Rf, and Frank, A.

35. Oblate collectivity in the yrast structure of Pt-194

Author

Jones, Ga, Podolyak, Z., Schunck, N., Walker, Pm, Angelis, G., Zhang, Yh, Axiotis, M., Bazzacco, D., Bizzeti, Pg, Brandolini, F., Broda, R., Bucurescu, D., Farnea, E., Gelletly, W., Gadea, A., Ionescu-Bujor, M., Iordachescu, A., Kroll, T., Langdown, Sd, Lunardi, S., Marginean, N., Martinez, T., Medina, Nh, Quintana, B., Regan, Ph, Berta Rubio, Ur, Ca, Valiente-Dobon, Jj, and Williams, Sj

36. Mass dependence of short-range correlations in nuclei and the EMC effect

Author

Wim Cosyn, Maarten Vanhalst, Jan Ryckebusch, Lunardi, S, Bizzeti, PG, Kabana, Sonia, Bucci, C, Chiari, M, Dainese, A, Di Nezza, P, Menegazzo, R, Nannini, A, Signorini, C, and Valiente-Dobon, JJ

Subjects
Physics, Quantitative Biology::Biomolecules, Nuclear Theory, QC1-999, EMC effect, FOS: Physical sciences, Magnitude (mathematics), Quantum number, Quantitative Biology::Cell Behavior, Nuclear Theory (nucl-th), Momentum, Nuclear physics, Distribution (mathematics), Physics and Astronomy, Range (statistics), Nuclear Experiment, Electron scattering, Excitation
Abstract

An approximate method to quantify the mass dependence of the number of two-nucleon (2N) short-range correlations (SRC) in nuclei is suggested. The proposed method relies on the concept of the "local nuclear character" of the SRC. We quantify the SRC and its mass dependence by computing the number of independent-particle model (IPM) nucleon pairs in a zero relative orbital momentum state. We find that the relative probability per nucleon for 2N SRC follows a power law as a function of the mass number $A$. The predictions are connected to measurements which provide access to the mass dependence of SRC. First, the ratio of the inclusive inelastic electron scattering cross sections of nuclei to $^{2}$H at large values of the Bjorken variable. Second, the EMC effect, for which we find a linear relationship between its magnitude and the predicted number of SRC-prone pairs., Comment: 12 pages, 4 figures, preprint proceeding Thirty First International Workshop on Nuclear Theory (IWNT31-2012), organized by the Nuclear Theory Laboratory of the Institute for Nuclear Research and Nuclear Energy of the Bulgarian Academy of Sciences

Published
2014

37. Isomer spectroscopy in the neutron-deficient lead region following projectile fragmentation

Author

Gladnishki, K. A., Podolyák, Zs, Gerl, J., Hellström, M., Kopatch, Y., Mandal, S., Górska, M., Regan, P. H., Wollersheim, H. J., Banu, A., Benzoni, G., Boardman, H., Marco La Commara, Ekman, J., Fahlander, C., Geissel, H., Grawe, H., Kaza, E., Korgul, A., Matos, M., Mineva, M. N., Page, R. D., Pearson, C. J., Plettner, C., Rudolph, D., Scheidenberger, Ch, Shishkin, V., Sohler, D., Sümmerer, K., Valiente-Dobón, J. J., Weick, H., Winkler, M., Gladnishki, Ka, Podolyak, Z, Gerl, J, Hellstrom, M, Kopatch, Y, Mandal, S, Gorska, M, Regan, Ph, Wollersheim, Hj, Banu, A, Benzoni, G, Boardman, H, LA COMMARA, Marco, Ekman, J, Fahlander, C, Geissel, H, Grawe, H, Kaza, E, Korgul, A, Matos, M, Mineva, Mn, Page, Rd, Pearson, Cj, Plettner, C., Rudolph, D, Scheidenberger, C., Shishkin, V, Sohler, D., Summerer, K, Valiente Dobon, Jj, Weick, H, and Winkler, M.

38. Pseudospin Symmetry and Microscopic Origin of Shape Coexistence in the ^{78}Ni Region: A Hint from Lifetime Measurements.

Author

Delafosse C, Verney D, Marević P, Gottardo A, Michelagnoli C, Lemasson A, Goasduff A, Ljungvall J, Clément E, Korichi A, De Angelis G, Andreoiu C, Babo M, Boso A, Didierjean F, Dudouet J, Franchoo S, Gadea A, Georgiev G, Ibrahim F, Jacquot B, Konstantinopoulos T, Lenzi SM, Maquart G, Matea I, Mengoni D, Napoli DR, Nikšić T, Olivier L, Pérez-Vidal RM, Portail C, Recchia F, Redon N, Siciliano M, Stefan I, Stezowski O, Vretenar D, Zielinska M, Barrientos D, Benzoni G, Birkenbach B, Boston AJ, Boston HC, Cederwall B, Charles L, Ciemala M, Collado J, Cullen DM, Désesquelles P, de France G, Domingo-Pardo C, Eberth J, González V, Harkness-Brennan LJ, Hess H, Judson DS, Jungclaus A, Korten W, Lefevre A, Legruel F, Menegazzo R, Million B, Nyberg J, Quintana B, Ralet D, Reiter P, Saillant F, Sanchis E, Theisen C, and Valiente Dobon JJ

Abstract

Lifetime measurements of excited states of the light N=52 isotones ^{88}Kr, ^{86}Se, and ^{84}Ge have been performed, using the recoil distance Doppler shift method and VAMOS and AGATA spectrometers for particle identification and gamma spectroscopy, respectively. The reduced electric quadrupole transition probabilities B(E2;2^{+}→0^{+}) and B(E2;4^{+}→2^{+}) were obtained for the first time for the hard-to-reach ^{84}Ge. While the B(E2;2^{+}→0^{+}) values of ^{88}Kr, ^{86}Se saturate the maximum quadrupole collectivity offered by the natural valence (3s, 2d, 1g_{7/2}, 1h_{11/2}) space of an inert ^{78}Ni core, the value obtained for ^{84}Ge largely exceeds it, suggesting that shape coexistence phenomena, previously reported at N≲49, extend beyond N=50. The onset of collectivity at Z=32 is understood as due to a pseudo-SU(3) organization of the proton single-particle sequence reflecting a clear manifestation of pseudospin symmetry. It is realized that the latter provides actually reliable guidance for understanding the observed proton and neutron single particle structure in the whole medium-mass region, from Ni to Sn, pointing towards the important role of the isovector-vector ρ field in shell-structure evolution.

Published
2018
Full Text
View/download PDF

39. Evidence for Coexisting Shapes through Lifetime Measurements in ^{98}Zr.

Author

Singh P, Korten W, Hagen TW, Görgen A, Grente L, Salsac MD, Farget F, Clément E, de France G, Braunroth T, Bruyneel B, Celikovic I, Delaune O, Dewald A, Dijon A, Delaroche JP, Girod M, Hackstein M, Jacquot B, Libert J, Litzinger J, Ljungvall J, Louchart C, Gottardo A, Michelagnoli C, Müller-Gatermann C, Napoli DR, Otsuka T, Pillet N, Recchia F, Rother W, Sahin E, Siem S, Sulignano B, Togashi T, Tsunoda Y, Theisen C, and Valiente-Dobon JJ

Abstract

The lifetimes of the first excited 2^{+}, 4^{+}, and 6^{+} states in ^{98}Zr were measured with the recoil-distance Doppler shift method in an experiment performed at GANIL. Excited states in ^{98}Zr were populated using the fission reaction between a 6.2  MeV/u ^{238}U beam and a ^{9}Be target. The γ rays were detected with the EXOGAM array in correlation with the fission fragments identified by mass and atomic number in the VAMOS++ spectrometer. Our result shows a very small B(E2;2_{1}^{+}→0_{1}^{+}) value in ^{98}Zr, thereby confirming the very sudden onset of collectivity at N=60. The experimental results are compared to large-scale Monte Carlo shell model and beyond-mean-field calculations. The present results indicate the coexistence of two additional deformed shapes in this nucleus along with the spherical ground state.

Published
2018
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results