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151. Corrigendum: Spectroscopy of a tetrahedral doubly magic candidate nucleus (2019 J. Phys. G: Nucl. Part. Phys.46 055102).

Author: Saha, A, Bhattacharjee, T, Curien, D, Dudek, J, Dedes, I, Mazurek, K, Góźdź, A, Tagami, S, Shimizu, Y R, Banerjee, S R, Rajbanshi, S, Bisoi, A, De Angelis, G, Bhattacharya, Soumik, Bhattacharyya, S, Biswas, S, Chakraborty, A, Gupta, S Das, Dey, B, and Goswami, A
Subjects: PENNING trap mass spectrometry, PARTICLES (Nuclear physics), PROPERTIES of nuclear particles
Published: 2019
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152. Rotational band structure in128Ce

Author: Căta-Danil, G., Nyakó, B. M., Gizon, J., Barci, V., Bucurescu, D., Curien, D., Gizon, A., André, S., Foin, C., Genevey, J., Hildingsson, L., Klamra, W., Merdinger, J. vC., and Zolnai, L.
Published: 1991
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153. Search for tetrahedral states and X(5) symmetry in Yb nuclei with N~90 through Coulomb excitation using HIE-ISOLDE and Miniball

Author: Petrache, C M, Astier, A, Konstantinopoulos, T, Zerrouki, T, Curien, D, Dudek, J, Sengele, L, Pietralla, N, Reiter, P, Bonatsos, D, Petrellis, D, Bhattacharjee, T, Saha, A, Banerjee, D, Das, S K, Andreoiu, C, and REX-ISOLDE and Miniball collaboration, x
Subjects: Detectors and Experimental Techniques
Published: 2014

154. The (n,$\gamma$) campaigns at EXILL

Author: Jolie, J., Régis, J.-M., Wilmsen, D., Ahmed, Mohamed-Salem, Pfeiffer, M., Saed-Samii, N., Warr, N., Blanc, A., Jentschel, M., Köster, U., Mutti, P., Soldner, T, Simpson, G.S., De France, G., Urban, W., Drouet, F., Vancraeyenest, A., Baczyk, P., Czerwinski, M., Korgul, A., Mazzocchi, C., Rzaca-Urban, T., Bruce, A., Roberts, O.J., Fraile, L.M., Paziy, V., Ignatov, A., Ilieva, S., Kröll, Th., Scheck, M., Stamm, J., Thürauf, M., Ivanova, D., Kisyov, S., Lalkovski, S., Podolyak, Z., Regan, P.H., Korten, W., Habs, D., Thirolf, P., Ur, C. A., Bernards, C., Casten, R.F., Cooper, N., Naqvi, F., Werner, V., Cakirli, R.B., Leoni, S., Benzoni, G., Bocchi, G., Bottoni, S., Crespi, F.C.L., Fornal, B., Cieplicka, N., Szpak, B., Leguillon, R., John, R., Massarczyk, R., Schwengner, R., Curien, D., Sengele, L., Institut Laue-Langevin (ILL), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), 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 Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université 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), Helmholtz-Zentrum Dresden-Rossendorf (HZDR). DEU., ILL, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), 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), and Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: This is an open article distributed under the terms of the Creative Commons Attribution Licence 4.0; International audience; At the PF1B cold neutron beam line at the Institut Laue Langevin, the EXILL array consisting ofEXOGAM, GASP and ILL-Clover detectors was used to perform (n,$\gamma$) measurements at very high coincidencerates. About ten different reactions were measured in autumn 2012 using a highly collimated cold neutronbeam. In spring 2013, the EXOGAM array was combined with 16 LaBr3(Ce) scintillators in theEXILL&FATIMA campaign for the measurement of lifetimes using the generalised centroid differencemethod. We report on the properties of the set-ups and present first results from both campaigns.
Published: 2014

155. Discrete decay of the yrast superdeformed band in the $^{151}$Tb nucleus

Author: Robin, J., Odahara, A., Duchêne, G., Beck, F.A., Twin, P., Byrski, Th., Curien, D., Adimi, N., E. Appelbe, D., Bednarczyk, P., Bracco, A., Cederwall, B., Courtin, S., M. Cullen, D., Dorvaux, O., Ertück, S., De France, G., Gall, B., Joshi, P., L. King, S., Korichi, A., Lagergren, K., Lo Bianco, G., Leoni, S., Lopez-Martens, A., Lunardi, S., Million, B., Nourredine, A., Pachoud, E., S. Paul, E., Petrache, C., Piqueras, I., Redon, N., Saltarelli, A., Simpson, J., Stezowski, O., Venturelli, R., P. Vivien, J., Zuber, K., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), 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), 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Cederwall, Bo -- 0000-0003-1771-2656, BYRSKI, Tomasz -- 0000-0001-9181-5026, Petrache, Costel -- 0000-0001-8419-1390, Bednarczyk, Piotr -- 0000-0002-5699-5292, de France, Gilles -- 0000-0002-7439-1759, [Robin, J. -- Odahara, A. -- Duchene, G. -- Beck, F. A. -- Byrski, Th. -- Curien, D. -- Bednarczyk, P. -- Courtin, S. -- Dorvaux, O. -- de France, G. -- Gall, B. -- Joshi, P. -- Nourredine, A. -- Pachoud, E. -- Piqueras, I. -- Vivien, J. P.] ULP, CNRS, IN2P3, Inst Rech Subatom,UMR 7500, F-67037 Strasbourg 2, France -- [Robin, J.] Univ Grenoble 1, CNRS, Inst Natl Polytech Grenoble, IN2P3,LPSC, F-38026 Grenoble, France -- [Odahara, A.] Osaka Univ, Dept Phys, Osaka 5600043, Japan -- [Twin, P. -- Cullen, D. M. -- Ertueck, S. -- King, S. L. -- Paul, E. S.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England -- [Adimi, N.] USTHB, Inst Phys, Bab Ezzouar 16111, Alger, Algeria -- [Appelbe, D. E. -- Simpson, J.] CCLRC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England -- [Bednarczyk, P. -- Zuber, K.] Inst Nucl Phys, PL-3142 Krakow, Poland -- [Bracco, A. -- Leoni, S.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy -- [Bracco, A. -- Leoni, S.] Ist Nazl Fis Nucl, Sezione Milano, I-20133 Milan, Italy -- [Cederwall, B.] AlbaNova Univ Ctr, Royal Inst Technol, S-10691 Stockholm, Sweden -- [Ertueck, S.] Nigde Univ, Sci & Art Fac, Dept Phys, TR-51100 Nigde, Turkey -- [de France, G.] CNRS, IN2P3, CEA DSM, Grand Accelerateur Natl Ions Lourds, F-14076 Caen 5, France -- [Joshi, P.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England -- [Korichi, A. -- Lopez-Martens, A.] CNRS, IN2P3, CSNSM, F-91405 Orsay, France -- [Lo Bianco, G. -- Petrache, C.] Univ Camerino, Dipartimento Fis, I-62032 Camerino, Italy -- [Lo Bianco, G. -- Petrache, C.] Ist Nazl Fis Nucl, Sezione Camerino, I-62032 Camerino, Italy -- [Lunardi, S. -- Venturelli, R.] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy -- [Lunardi, S. -- Venturelli, R.] Ist Nazl Fis Nucl, Sezione Padova, I-35131 Padua, Italy -- [Petrache, C.] CNRS, IN2P3, IPN, F-91406 Orsay, France -- [Petrache, C.] Univ Paris 11, F-91406 Orsay, France -- [Redon, N. -- Stezowski, O.] Inst Phys Nucl, F-69622 Villeurbanne, France, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: 21.10.Re, 23.20.En, 23.20.Lv, 27.70.+q, PACS number(s) : 21.10.Re, 23.20.En, 23.20.Lv, 27.70.+q, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: WOS: 000259692300032, The Euroball array has been used to search for linking transitions between the superdeformed (SD) and the normal deformed (ND) wells in (151)Tb. Many. rays in the energy range 2-4 MeV have been observed in coincidence with the yrast SD band. It is proposed that the highest energy transition of 3748 keV and the strongest line (2818 keV) of the previously observed transitions both decay from the same SD level as their links with the ND states have been identified. The current spectra have insufficient statistics to completely identify the decay point in the SD band. Theoretical calculations covering SD bands in the A approximate to 150 region enable the two possible spin assignments to be compared with experimental data on proposed links in (149)Gd and (152)Dy. It is concluded that the energy of the lowest SD band member in (151)Tb has an excitation energy of 12861 keV and a spin of 65/2(+)., EU [EUROVIV: HPRI-CT-1999-00078]; Science and Technology Facilities Council [ST/J000108/1, PP/F000677/1], The Euroball project was a collaboration between Denmark, France, Germany, Italy, Sweden, and the United Kingdom. This work was partially supported by the EU (Contract No. EUROVIV: HPRI-CT-1999-00078).
Published: 2008

156. First in-beamγ-ray study of the level structure of neutron-richS39

Author: Chapman, R., primary, Wang, Z. M., additional, Bouhelal, M., additional, Haas, F., additional, Liang, X., additional, Azaiez, F., additional, Behera, B. R., additional, Burns, M., additional, Caurier, E., additional, Corradi, L., additional, Curien, D., additional, Deacon, A. N., additional, Dombrádi, Zs., additional, Farnea, E., additional, Fioretto, E., additional, Gadea, A., additional, Hodsdon, A., additional, Ibrahim, F., additional, Jungclaus, A., additional, Keyes, K., additional, Kumar, V., additional, Lunardi, S., additional, Mărginean, N., additional, Montagnoli, G., additional, Napoli, D. R., additional, Nowacki, F., additional, Ollier, J., additional, O'Donnell, D., additional, Papenberg, A., additional, Pollarolo, G., additional, Salsac, M.-D., additional, Scarlassara, F., additional, Smith, J. F., additional, Spohr, K. M., additional, Stanoiu, M., additional, Stefanini, A. M., additional, Szilner, S., additional, Trotta, M., additional, and Verney, D., additional
Published: 2016
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157. Particle-core coupling inS37

Author: Chapman, R., primary, Wang, Z. M., additional, Bouhelal, M., additional, Haas, F., additional, Liang, X., additional, Azaiez, F., additional, Behera, B. R., additional, Burns, M., additional, Caurier, E., additional, Corradi, L., additional, Curien, D., additional, Deacon, A. N., additional, Dombrádi, Zs., additional, Farnea, E., additional, Fioretto, E., additional, Gadea, A., additional, Hodsdon, A., additional, Ibrahim, F., additional, Jungclaus, A., additional, Keyes, K., additional, Kumar, V., additional, Lunardi, S., additional, Mărginean, N., additional, Montagnoli, G., additional, Napoli, D. R., additional, Nowacki, F., additional, Ollier, J., additional, O'Donnell, D., additional, Papenberg, A., additional, Pollarolo, G., additional, Salsac, M.-D., additional, Scarlassara, F., additional, Simpson, G., additional, Smith, J. F., additional, Spohr, K. M., additional, Stanoiu, M., additional, Stefanini, A. M., additional, Szilner, S., additional, Trotta, M., additional, and Verney, D., additional
Published: 2016
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158. Shell evolution beyond N=40 : Cu-69,Cu-71,Cu-73

Author: Sahin, E., Doncel, M., Sieja, K., de Angelis, G., Gadea, A., Quintana, B., Gorgen, A., Modamio, V., Mengoni, D., Valiente-Dobon, J. J., John, P. R., Albers, M., Bazzacco, D., Benzoni, G., Birkenbach, B., Cederwall, B., Clement, E., Curien, D., Corradi, L., Desesquelles, P., Dewald, A., Didierjean, F., Duchene, G., Eberth, J., Erduran, M. N., Farnea, E., Fioretto, E., de France, G., Fransen, C., Gernhaeuser, R., Gottardo, A., Hackstein, M., Hagen, T., Hernandez-Prieto, A., Hess, H., Hueyuek, T., Jungclaus, A., Klupp, S., Korten, W., Kusoglu, A., Lenzi, S. M., Ljungvall, J., Louchart, C., Lunardi, S., Menegazzo, R., Michelagnoli, C., Mijatovic, T., Million, B., Molini, P., Montagnoli, G., Montanari, D., Moeller, O., Napoli, D. R., Obertelli, A., Orlandi, R., Pollarolo, G., Pullia, A., Recchia, F., Reiter, P., Rosso, D., Rother, W., Salsac, M. -D, Scarlassara, F., Schlarb, M., Siem, S., Singh, Pushpendra P., Söderström, P. -A, Stefanini, A. M., Stezowski, O., Sulignano, B., Szilner, S., Theisen, Ch, Ur, C. A., Yalcinkaya, M., Sahin, E., Doncel, M., Sieja, K., de Angelis, G., Gadea, A., Quintana, B., Gorgen, A., Modamio, V., Mengoni, D., Valiente-Dobon, J. J., John, P. R., Albers, M., Bazzacco, D., Benzoni, G., Birkenbach, B., Cederwall, B., Clement, E., Curien, D., Corradi, L., Desesquelles, P., Dewald, A., Didierjean, F., Duchene, G., Eberth, J., Erduran, M. N., Farnea, E., Fioretto, E., de France, G., Fransen, C., Gernhaeuser, R., Gottardo, A., Hackstein, M., Hagen, T., Hernandez-Prieto, A., Hess, H., Hueyuek, T., Jungclaus, A., Klupp, S., Korten, W., Kusoglu, A., Lenzi, S. M., Ljungvall, J., Louchart, C., Lunardi, S., Menegazzo, R., Michelagnoli, C., Mijatovic, T., Million, B., Molini, P., Montagnoli, G., Montanari, D., Moeller, O., Napoli, D. R., Obertelli, A., Orlandi, R., Pollarolo, G., Pullia, A., Recchia, F., Reiter, P., Rosso, D., Rother, W., Salsac, M. -D, Scarlassara, F., Schlarb, M., Siem, S., Singh, Pushpendra P., Söderström, P. -A, Stefanini, A. M., Stezowski, O., Sulignano, B., Szilner, S., Theisen, Ch, Ur, C. A., and Yalcinkaya, M.
Abstract: The level structure of the neutron-rich Cu-69, Cu-71, and Cu-73 isotopes has been investigated by means of multinucleon transfer reactions. The experiment was performed at Laboratori Nazionali di Legnaro using the AGATA Demonstrator array coupled to the PRISMA magnetic spectrometer. Lifetimes of excited states in Cu nuclei were measured with the recoil-distance Doppler-shift method. The resulting electromagnetic matrix elements for transitions from excited states in Cu-69,Cu-71,Cu-73 nuclei are used to assess the collective or single-particle character of these states. The results are compared with predictions of large-scale shell-model calculations, giving further insight into the evolution of the proton pf shell as neutrons fill the 1g(9/2) orbital.
Published: 2015
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159. High-spin structures of 3688Kr52 and 3789Rb52: Evolution from collective to single-particle behavior

Author: Astier, A., G. Porquet, M., Venkova, Ts., Duchêne, G., Azaiez, F., Curien, D., Deloncle, I., Dorvaux, O., J. P. Gall, B., Redon, N., Rousseau, Marc, Stézowski, O., CSNSM SNO, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (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)-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)-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), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: The high-spin states of the two neutron-rich nuclei 88Kr52 and 89Rb52 have been studied from the 18O+208Pb fusion-fission reaction. Their level schemes were built from triple γ-ray coincidence data, and γ-γ angular correlations were analyzed in order to assign spin and parity values to most of the observed states. The two level schemes evolve from collective structures to single-particle excitations as a function of the excitation energy. Comparison with results of shell-model calculations gives the specific proton and neutron configurations which are involved to generate the angular momentum along the yrast lines.
Published: 2013

160. Collective nature of low-lying excitations in Zn-70,Zn-72,Zn-74 from lifetime measurements using the AGATA spectrometer demonstrator

Author: Louchart, C., Obertelli, A., Goergen, A., Wolfram KORTEN, Bazzacco, D., Birkenbach, B., Bruyneel, B., Clement, E., Coleman-Smith, P. J., Corradi, L., Curien, D., Angelis, G., France, G., Delaroche, J. P., Dewald, A., Didierjean, F., Doncel, M., Duchene, G., Eberth, J., Erduran, M. N., Farnea, E., Finck, C., Fioretto, E., Fransen, C., Gadea, A., Girod, M., Gottardo, A., Grebosz, J., Habermann, T., Hackstein, M., Huyuk, T., Jolie, J., Judson, D., Jungclaus, A., Karkour, N., Klupp, S., Kruecken, R., Kusoglu, A., Lenzi, S. M., Libert, J., Ljungvall, J., Lunardi, S., Maron, G., Menegazzo, R., Mengoni, D., Michelagnoli, C., Million, B., Molini, P., Moeller, O., Montagnoli, G., Montanari, D., Napoli, D. R., Orlandi, R., Pollarolo, G., Prieto, A., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Rother, W., Sahin, E., Salsac, M. D., Scarlassara, F., Schlarb, M., Siem, S., Singh, P. P., Soderstrom, P. A., Stefanini, A. M., Stezowski, O., Sulignano, B., Szilner, S., Theisen, Ch, Ur, C. A., Valiente-Dobon, J. J., and Zielinska, M.
Subjects: Subatomär fysik, Subatomic Physics
Abstract: WOS: 000318527400007 Background: Neutron-rich nuclei with protons in the fp shell show an onset of collectivity around N=40. Spectroscopic information is required to understand the underlying mechanism and to determine the relevant terms of the nucleon-nucleon interaction that are responsible for the evolution of the shell structure in this mass region. Methods: We report on the lifetime measurement of the first 2(+) and 4(+) states in Zn-70,Zn-72 ,Zn-74 and the first 6(+) state in Zn-72 using the recoil distance Doppler shift method. The experiment was carried out at the INFN Laboratory of Legnaro with the AGATA demonstrator, first phase of the Advanced Gamma Tracking Array of highly segmented, high-purity germanium detectors coupled to the PRISMA magnetic spectrometer. The excited states of the nuclei of interest were populated in the deep inelastic scattering of a Ge-76 beam impinging on a U-238 target. Results: The maximum of collectivity along the chain of Zn isotopes is observed for Zn-72 at N=42. An unexpectedly long lifetime of 20(-5.2)(+1.8) ps was measured for the 4(+) state in Zn-74. Conclusions: Our results lead to small values of the B(E2;4(1)(+) -> 21(+))/B(E2;2(1)(+->)0(1)(+)) ratio for Zn-72,Zn-74, suggesting a significant noncollective contribution to these excitations. These experimental results are not reproduced by state-of-the-art microscopic models and call for lifetime measurements beyond the first 2(+) state in heavy zinc and nickel isotopes. European Union Seventh Framework Program FP7/2007-2013 [DPN/N190/AGATA/2009]; Polish MNiSW [DPN/N190/AGATA/2009]; Spanish Ministerio de Ciencia e Innovacion [FPA2011-29854-C04]; BMBF [05P12RDFN8, 06DA9040I]; [262010 ENSAR]; Science and Technology Facilities Council [ST/F004052/1, ST/J000108/1] The authors are grateful to the ALPI accelerator team for quality of the beam delivered during the experiment. B. Lommel and J. Steiner from the GSI are acknowledged for their help in preparing the Uranium target and the opportunity to use the GSI target laboratory. The authors would like to thank F. Nowacki and K. Sieja for enlightening discussions and their suggestions to improve the manuscript. This work has been partly financed by the European Union Seventh Framework Program FP7/2007-2013 under Grant Agreement No. 262010 ENSAR, the Polish MNiSW under Grant No. DPN/N190/AGATA/2009, the Spanish Ministerio de Cienciae Innovacion under Contract No. FPA2011-29854-C04, and the BMBF under Grant Nos. 05P12RDFN8 and 06DA9040I.
Published: 2013

161. Collective nature of low-lying excitations in ^{70,72,74}Zn from lifetime measurements using the AGATA spectrometer demonstrator

Author: Louchart, C., Obertelli, A., Görgen, A., Korten, W., Bazzacco, D., Birkenbach, B., Bruyneel, B., Clément, E., Coleman Smith, P. J., Corradi, L., Curien, D., de Angelis, G., de France, G., Delaroche, J. P., Dewald, A., Didierjean, F., Doncel, M., Duchêne, G., Eberth, J., Erduran, M. N., Farnea, E., Finck, C., Fioretto, E., Fransen, C., Gadea, A., Girod, M., Gottardo, A., Grebosz, J., Habermann, T., Hackstein, M., Huyuk, T., Jolie, J., Judson, D., Jungclaus, A., Karkour, N., Klupp, S., Krücken, R., Kusoglu, A., Lenzi, S. M., Libert, J., Ljungvall, J., Lunardi, S., Maron, G., Menegazzo, R., Mengoni, D., Michelagnoli, C., Million, B., Molini, P., Möller, O., Montagnoli, G., Montanari, D., Napoli, D. R., Orlandi, R., Pollarolo, Giovanni, Prieto, A., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Rother, W., Sahin, E., Salsac, M. D., Scarlassara, F., Schlarb, M., Siem, S., Singh, P. P., Söderström, P. A., Stefanini, A. M., Stézowski, O., Sulignano, B., Szilner, S., Theisen, C. h., C. A., Ur, Valiente Dobón, J. J., Zielinska, M., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CSNSM ELEC, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (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)-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), CSNSM SNO, 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)-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)-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), Institut de Physique Nucléaire de Lyon (IPNL), 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), AGATA, 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 de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université 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), 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), 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 Claude Bernard Lyon 1 (UCBL), and 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)
Subjects: 23.20.−g, 27.50.+e, 29.30.Kv, 29.40.Gx, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, spectrometers, AGATA, PRISMA, spectroscopic information on Zn isotopes
Abstract: Neutron-rich nuclei with protons in the fp shell show an onset of collectivity around N=40. Spectroscopic information is required to understand the underlying mechanism and to determine the relevant terms of the nucleon-nucleon interaction that are responsible for the evolution of the shell structure in this mass region.
Published: 2013

162. Octupole correlations in the structure of 0$_2^+$ bands in the N=88 nuclei 150Sm and 152Gd

Author: Bvumbi, S.P., Sharpey-Schafer, J.F., Jones, Peter, Mullins, S.M., Nyako, B.M., Juhasz, K., Bark, Robert, Bianco, L., Cullen, David, Curien, D., Garrett, P.E., Greenlees, Paul, Hirvonen, J., Jakobsson, Ulrika, Kau, J., Komati, F., Julin, Rauno, Juutinen, Sakari, Ketelhut, Steffen, Korichi, A., Lawrie, E.A., Lawrie, J.J., Leino, Matti, Madiba, T.E., Majola, S.N.T., Maine, P., Minkova, A., Ncapayi, N.J., Nieminen, Päivi, Peura, Pauli, Rahkila, Panu, Riedinger, L.L., Ruotsalainen, Panu, Sarén, Jan, Scholey, Catherine, Sorri, Juha, Stolze, Sanna, Timar, J., Uusitalo, Juha, and Vymers, P.A.
Subjects: Experimental Nuclear Physics
Abstract: Knowledge of the exact microscopic structure of the 01 + ground state and first excited 02 + state in 150Sm is required to understand the branching of double β decay to these states from 150Nd. The detailed spectroscopy of 150Sm and 152Gd has been studied using (α,xn) reactions and the γ -ray arrays AFRODITE and JUROGAM II. Consistently strong E1 transitions are observed between the excited Kπ = 02 + bands and the lowest negative parity bands in both nuclei. These results are discussed in terms of the possible permanent octupole deformation in the first excited Kπ = 02 + band and also in terms of the “tidal wave” model of Frauendorf. peerReviewed
Published: 2013

163. Identification of new transitions feeding the high-spin isomers in $^{139}$Nd and $^{140}$Nd nuclei

Author: Vancraeyenest, A., Petrache, C., Guinet, D., T. Greenlees, P., Jakobsson, U., Julin, R., Juutinen, S., Ketelhut, S., Leino, M., Nyman, M., Peura, P., Rahkila, P., Ruotsalainen, P., Saren, J., Scholey, C., Sorri, J., Uusitalo, J., Jones, P., Ducoin, C., Lautesse, P., Mancuso, C., Redon, N., Stezowski, O., Désesquelles, P., Leguillon, R., Korichi, A., Zerrouki, T., Curien, D., Takashima, A., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), 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 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), Matière Nucléaire, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), 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: [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMilieux_MISCELLANEOUS, Experimental Nuclear Physics
Abstract: The population of the high-spin isomers in 139Nd and 140Nd was investigated using the 96Zr(48Ca,xn) reaction and the JUROGAM + RITU + GREAT setup employing the recoil decay tagging technique. Three transitions feeding the 23/2+ isomer in 139Nd and two transitions feeding the 20+ isomer in 140Nd were identified. The newly observed transitions allowed the excitation energy of the isomer to be established in 139Nd and to assign configurations to the states and bands deexcited by the observed transitions in both nuclei. peerReviewed
Published: 2013

164. Octupole correlations in the structure of 0(2)(+) bands in the N=88 nuclei Sm-150 and Gd-152

Author: P. Bvumbi, S., F. Sharpey-Schafer, J., M. Jones, P., M. Mullins, S., M. Nyako, B., Juhasz, K., A. Bark, R., Bianco, L., M. Cullen, D., Curien, D., E. Garrett, P., T. Greenlees, P., Hirvonen, J., Jakobsson, U., Kau, J., Komati, F., Julin, R., Juutinen, S., Ketelhut, S., Korichi, A., A. Lawrie, E., Lawrie, J.J., Leino, M., E. Madiba, T., N. T. Majola, S., Maine, P., Minkova, A., J. Ncapayi, N., Nieminen, P., Peura, P., Rahkila, P., L. Riedinger, L., Ruotsalainen, P., Saren, J., Scholey, C., Sorri, J., Stolze, S., Timar, J., Uusitalo, J., A. Vymers, P., Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), CSNSM SNO, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (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)-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)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and 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)
Subjects: STATES, ND-148, DEFORMATION, MOMENTS, SHAPES, ISOTOPES, NEUTRON, TABLE, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], DECAY, LOW-LYING O
Abstract: Knowledge of the exact microscopic structure of the 0(1)(+) ground state and first excited 0(2)(+) state in Sm-150 is required to understand the branching of double beta decay to these states from Nd-150. The detailed spectroscopy of Sm-150 and Gd-152 has been studied using (alpha, xn) reactions and the gamma-ray arrays AFRODITE and JUROGAM II. Consistently strong E1 transitions are observed between the excited K-pi = 0(2)(+) bands and the lowest negative parity bands in both nuclei. These results are discussed in terms of the possible permanent octupole deformation in the first excited K-pi = 0(2)(+) band and also in terms of the "tidal wave" model of Frauendorf. DOI: 10.1103/PhysRevC.87.044333
Published: 2013

165. Odd-parity 100Sn Core Excitations

Author: Palacz, M., Nyberg, J., Grawe, H., Sieja, K., de Angelis, G., Bednarczyk, P., Blazhev, A., Curien, D., Dombradi, Z., Dorvaux, O., Ekman, Jörgen, Galkowski, J., Gorska, M., Iwanicki, J., Jaworski, G., Kownacki, J., Ljungvall, J., Moszynski, M., Nowacki, F., Rudolph, Dirk, Sohler, D., Wolski, D., and Zieblinski, M.
Subjects: Subatomic Physics
Abstract: Odd-parity core excited states have been identified in two close neighbors of Sn-100: Pd-96 and Ag-97. This was done in an fusion-evaporation experiment, using a Ni-58 beam on a Sc-45 target. Even-parity core excited states in these nuclei are very well reproduced in large scale (LSSM) calculations in which particle-hole excitations are allowed with up to five g(9/2) protons and neutrons across the N = Z = 50 gap, to the g(7/2), d(5/2), d(3/2), and s(1/2) orbitals. The odd-parity states can only be qualitatively interpreted though, employing calculations in the full fpg shell model space, but with just one particle-hole core excitation allowed. A more complete model including odd-parity orbitals is need for the description of core excited states in the region of Sn-100. DOI:10.5506/APhysPolB.44.491
Published: 2013

166. Evolution of the shell structure in medium-mass nuclei : search for the 2d5/2 neutron orbital in 69Ni

Author: Moukaddam, M., Duchene, G., Hammache, F., Harakeh, M. N., Beaumel, D., Kemper, K., Lapoux, V., Matea, I., Matta, A., Nalpas, L., Nowacki, F., Obertelli, A., Flavigny, F., Pancin, J., Perrot, L., Piot, J., Burgunder, G., Pllumbi, E., Raabe, R., Scarpaci, J. A., Serevile, N., Sieja, K., Sorlin, O., Franchoo, S., Gheorghe Iulian Stefan, Stodel, C., Caceres, L., Clément, E., Curien, D., Didierjean, F., Fernandez-Dominguez, B., Finck, C., Gibelin, J., Giron, S., Gillibert, A., Grévy, S., Guillot, J., Haas, F., Institut Pluridisciplinaire Hubert Curien (IPHC), 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), 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), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Lion, Michel
Subjects: [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: International audience; It has been shown that the neutron 2d5/2 orbital has to be included in shell-model calculations to explain the appearance of large quadrupole collectivity observed in the neutron rich Fe and Cr of the N ≈ 40 region. This work initiated by Caurier et al. has been recently revisited. Calculations in a large valence space involving the fp proton shell and the fpgd neutron shells including a strongly reduced 1g9/2 - 2d5/2 neutron gap down to ≈ 1.5 MeV affect the whole N = 40 region and point out a new island of inversion similar to those known for light nuclei around N = 8 and N = 20. A global mecanism could be deduced, in the frame of the shell-model approach, of the emergence of islands of inversion at Harmonic-Oscillator shell gaps driven by two particle-two hole neutron excitations into quadrupole-partner orbitals across these gaps. Since now, no 5/2+ state has been assigned in previous studies of 69Ni, an ideal laboratory to search for the neutron 2d5/2 orbital. A (d,p) reaction onto a 68Ni beam produced at GANIL has been used to probe the single-particle energy of the 2d5/2 neutron orbital in 69Ni. Two 5/2+ states with important spectroscopic Shell Model as a Unified View of Nuclear Structure / Livre des résumés 10 factors lying around 2.5 MeV excitation energy have been observed, for the first time, in 69Ni. The doublet is understood as the mixing of two main configurations of spherical nature. These results are in good agreement with large-scale shell-model calculations in which 2.5 MeV 1g9/2 - 2d5/2 gap for neutrons is included, and confirm experimentally Caurier's assumption of a reduced 1g9/2 - 2d5/2 neutron gap at N = 40.
Published: 2012

167. Odd-parity 100Sn Core Exitations

Author: Palacz, M., Nyberg, J., Grawe, H., Sieja, K., De Angelis, G., Bednarczyk, P., Blazhev, A., Curien, D., Dombradi, Z., Dorvaux, O., Ekman, J., Galkowski, J., Gorska, M., Iwanicki, J., Jaworski, G., Kownacki, J., Ljungvall, J., Moszynski, M., Nowacki, F., Rudolph, D., Sohler, D., Wolski, D., Zieblinski, M., 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), 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)-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)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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: 21.60.Cs, 23.20.Lv, 23.35.+g, 21.10.Tg, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: International audience; Odd-parity core excited states have been identified in two close neighbors of Sn-100: Pd-96 and Ag-97. This was done in an fusion-evaporation experiment, using a Ni-58 beam on a Sc-45 target. Even-parity core excited states in these nuclei are very well reproduced in large scale (LSSM) calculations in which particle-hole excitations are allowed with up to five g(9/2) protons and neutrons across the N = Z = 50 gap, to the g(7/2), d(5/2), d(3/2), and s(1/2) orbitals. The odd-parity states can only be qualitatively interpreted though, employing calculations in the full fpg shell model space, but with just one particle-hole core excitation allowed. A more complete model including odd-parity orbitals is need for the description of core excited states in the region of Sn-100. DOI:10.5506/APhysPolB.44.491
Published: 2012

168. N = 50 core excited states studied in the 46 96 Pd 50 nucleus

Author: Palacz, M., Nyberg, J., Grawe, H., Sieja, K., De Angelis, G., Bednarczyk, P., Blazhev, A., Curien, D., Dombradi, Z., Dorvaux, O., Ekman, J., Gałkowski, J., Górska, M., Iwanicki, J., Jaworski, G., Kownacki, J., Ljungvall, J., Moszyński, M., Nowacki, F., Rudolph, D., Sohler, D., Wolski, D., Ziębliński, M., Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and 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)
Subjects: [PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

169. N=50 Core Excited States Studied in the 96Pd Nucleus

Author: Palacz, M., Nyberg, J., Grawe, H., Sieja, K., de Angelis, G., Bednarczyk, P., Blazhev, A., Curien, D., Dombradi, Z., Dorvaux, O., Ekman, Jörgen, Galkowski, J., Gorska, M., Iwanicki, J., Jaworski, G., Kownacki, J., Ljungvall, J., Moszynski, M., Nowacki, F., Rudolph, Dirk, Sohler, D., Wolski, D., and Zieblinski, M.
Subjects: Subatomic Physics
Abstract: The four-proton hole Pd-96 neighbor of the doubly-magic Sn-100 nucleus was studied in-beam, using a fusion-evaporation reaction of a Ni-58 beam on a Sc-45 target. States of Pd-96 were established up to an excitation energy of 9707 keV. A core-excited odd-parity isomer with T-1/2 = 37.7(1.1) ns was identified. Shell model calculations were performed in four different model spaces. Even-parity states of Pd-96 are very well reproduced in large-scale shell model (LSSM) calculations in which excitations are allowed of up to five g(9/2) protons and neutrons across the N = Z = 50 gap, to the g(7/2), d(5/2), d(3/2), and s(1/2) orbitals. The odd-parity isomer can be only qualitatively interpreted though, employing calculation in the full fpg shell model space, with just one particle-hole core excitation.
Published: 2012

170. N=50 core excited states studied in the 4696Pd50 nucleus

Author: Palacz, M., Nyberg, Johan, Grawe, H., Sieja, K., de Angelis, G., Bednarczyk, P., Blazhev, A., Curien, D., Dombradi, Z., Dorvaux, O., Ekman, J., Galkowski, J., Gorska, M., Iwanicki, J., Jaworski, G., Kownacki, J., Ljungvall, J., Moszynski, M., Nowacki, F., Rudolph, D., Sohler, D., Wolski, D., and Zieblinski, M.
Subjects: Physical Sciences, Fysik
Abstract: The four-proton hole Pd-96 neighbor of the doubly-magic Sn-100 nucleus was studied in-beam, using a fusion-evaporation reaction of a Ni-58 beam on a Sc-45 target. States of Pd-96 were established up to an excitation energy of 9707 keV. A core-excited odd-parity isomer with T-1/2 = 37.7(1.1) ns was identified. Shell model calculations were performed in four different model spaces. Even-parity states of Pd-96 are very well reproduced in large-scale shell model (LSSM) calculations in which excitations are allowed of up to five g(9/2) protons and neutrons across the N = Z = 50 gap, to the g(7/2), d(5/2), d(3/2), and s(1/2) orbitals. The odd-parity isomer can be only qualitatively interpreted though, employing calculation in the full fpg shell model space, with just one particle-hole core excitation.
Published: 2012

171. Structure of the N = 50 As, Ge, Ga nuclei

Author: Sahin, E., de Angelis, G., Duchene, G., Faul, T., Gadea, A., Lisetskiy, A.F., Ackermann, D., Algora, A., Aydin, S., Azaiez, F., Bazzacco, D., Benzoni, G., Bostan, M., Byrski, T., Čeliković, I., Chapman, R., Corradi, L., Courtin, S., Curien, D., Datta Pramanik, U., Didierjean, F., Dorvaux, O., Erduran, M.N., Erturk, S., Farnea, E., Fioretto, E., de Frances, G., Franchoo, S., Gall, B., Gottardo, A., Guiot, B., Haas, F., Ibrahim, F., Ince, E., Khouaja A., Kusoglu, A., La Rana, G., Labiche, M., Lebhertz, D., Lenzi, S., Leoni, S., Lunardi, S., Mason, P., Mengoni, D., Michelagnoli, C., Modamio, V., Montagnoli, G., Montanari, D., Moro, R., Mouginot, B., Napoli, D.R., O’Donnell, D., Oliveira, J.R.B., Ollier, J., Orlandi, R., Pollarolo, G., Recchia, F., Robin, J., Salsac, M.-D., Scarlassara, F., Singh, R.P., Silvestri, R., Smith, J.F., Stefan, I., Stefanini, A.M., Subotić, K., Szilner, Suzana, Tonev, D., Torres, D.A., Trotta, M., Ujic, P., Ur, C., Valiente-Dobón, J.J., Verney, D., Yalcinkaya, M., Wadyn, P.T., Wiedemann, K.T., Zuber, K., 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université 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), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: nuclear reactions, magnetic spectrometer, Compton-suppressed detectors, shell model, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: The level structures of the N = 50, 83As, 82Ge, and 81Ga isotones have been investigated by means of multi-nucleon transfer reactions. A first experiment was performed with the CLARA–PRISMA setup to identify these nuclei. A second experiment was carried out with the GASP array in order to deduce the γ -ray coincidence information. The results obtained on the high-spin states of such nuclei are used to test the stability of the N = 50 shell closure in the region of 78Ni (Z = 28). The comparison of the experimental level schemes with the shell-model calculations yields an N = 50 energy gap value of 4.7(3) MeV at Z = 28. This value, in a good agreement with the prediction of the finite-range liquid-drop model as well as with the recent large-scale shell model calculations, does not support a weakening of the N = 50 shell gap down to Z = 28.
Published: 2012

172. Deformed rotational cascades in 152Dy: Further evidence for shape coexistence at high spin

Author: Martin Smith, Appelbe, D. E., Twin, P. J., Beausang, C. W., Beck, F. A., Bentley, M. A., Cullen, D. M., Curien, D., Dagnall, P. J., France, G., Duchêne, G., Ertürk, S., Finck, Ch, Haas, B., Hibbert, I. M., Lisle, J. C., Nyakó, B. M., O Leary, C. D., Rigollet, C., Savajols, H., Simpson, J., Stézowski, O., Styczeń, J., Vivien, J. P., Zuber, K., Smith, M.B., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Dept. of Electron. Eng. and Physics, University of Paisley, Paisley PA1 2BE, United Kingdom, Department of Physics and Astronomy, Rutgers University, New Brunswick, NJ 08903, United States -- Appelbe, D.E., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Department of Physics and Astronomy, McMaster University, Hamilton, Ont. L8S 4M1, Canada -- Twin, P.J., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom -- Beausang, C.W., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Wright Nuclear Structure Laboratory, Yale University, 272 Whitney Avenue, New Haven, CT 06520, United States -- Beck, F.A., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Bentley, M.A., School of Sciences, Staffordshire University, College Road, Stoke-on-Trent ST4 2DE, United Kingdom -- Cullen, D.M., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom -- Curien, D., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Dagnall, P.J., Schuster Laboratory, University of Manchester, Manchester MI3 9PL, United Kingdom -- De France, G., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, Grand Accelerateur Natl. d'Ions L., BP 5027, F-14076 Caen Cedex 5, France -- Duchêne, G., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Ertürk, S., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Nigde Üniversitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, Nigde, Turkey -- Finck, Ch., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, Gesell. fur Schwerionenforschung, D-64291 Darmstadt, Germany -- Haas, B., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Hibbert, I.M., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Department of Physics, University of York, Heslington, York YO1 5DD, United Kingdom -- Lisle, J.C., Schuster Laboratory, University of Manchester, Manchester MI3 9PL, United Kingdom -- Nyakó, B.M., Inst. of Nucl. Res. of the Hung. A., 4001 Debrecen Pf. 51, Hungary -- O'Leary, C.D., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, School of Sciences, Staffordshire University, College Road, Stoke-on-Trent ST4 2DE, United Kingdom -- Rigollet, C., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, National Accelerator Center, P.O. Box 72, Faure ZA 7131, South Africa -- Savajols, H., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, Grand Accelerateur Natl. d'Ions L., BP 5027, F-14076 Caen Cedex 5, France -- Simpson, J., CLRC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom -- Stézowski, O., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, Inst. de Phys. Nucleaire de Lyon, F-69622 Villeurbanne Cedex, France -- Styczen, J., H. Niewodniczanski Inst. of Nucl. P., PL-31-342 Kraków, Poland -- Vivien, J.P., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Zuber, K., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, H. Niewodniczanski Inst. of Nucl. P., PL-31-342 Kraków, Poland, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and EUROGAM
Subjects: 21.10.Re, 21.10.Tg, 23.20.Lv, 27.70.+q, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: 8 pages; Two new rotational bands have been observed in the 152Dy nucleus following experiments performed using the EUROGAM gamma -ray spectrometer. Several transitions have been observed that link these new bands into the known single-particle states. Using the Doppler shift attenuation method, the quadrupole moment of the previously-known rotational sequence has been measured. The value of Qband=3.85±0.06 e b confirms the deformed nature of this cascade. The structures of the three bands are discussed in terms of the occupation of both paired and unpaired orbitals, and are found to be in good agreement with theoretical calculations. The observation of two new bands further extends the concept of shape coexistence in the 152Dy nucleus.
Published: 2000

173. Clusters in Light Nuclei

Author: Beck, C., Papka, P., Zafra, A. Sanchez i, Thummerer, S., Azaiez, F., Bednarczyk, P., Courtin, S., Curien, D., Dorvaux, O., Goasduff, A., Lebhertz, D., Nourreddine, A., Rousseau, M., Salsac, M. -D., von Oertzen, W., Gebauer, B., Wheldon, C., Kokalova, Tz., Efimov, G., Zherebchevsky, V., Schulz, Ch., Bohlen, H. G., Kamanin, D., de Angelis, G., Gadea, A., Lenzi, S., Napoli, D. R., Szilner, S., Milin, M., Catford, W. N., Jenkins, D. G., Royer, G., 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université 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), 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), and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: FOS: Physical sciences, clusters, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment, 25.70.Jj, 25.70.Pq, 24.60.Dr, 21.10, 27.30, 24.60.Dr
Abstract: A great deal of research work has been undertaken in the alpha-clustering study since the pioneering discovery, half a century ago, of 12C+12C molecular resonances. Our knowledge of the field of the physics of nuclear molecules has increased considerably and nuclear clustering remains one of the most fruitful domains of nuclear physics, facing some of the greatest challenges and opportunities in the years ahead. In this work, the occurence of "exotic" shapes in light N=Z alpha-like nuclei is investigated. Various approaches of superdeformed and hyperdeformed bands associated with quasimolecular resonant structures are presented. Results on clustering aspects are also discussed for light neutron-rich Oxygen isotopes., Comment: 12 pages, 5 figures. Invited Talk presented by C. Beck at the Zakopane Conference on Nuclear Physics "Extremes of the Nuclear Landscape" XLV in the series of Zakopane Schools of Physics - International Symposium - Zakopane, Poland, August 30 - September 5, 2010.To be publihed in Acta Physica Polonica B42 no 3, March 2011
Published: 2011

174. Collectivity in (41)S

Author: Wang, Zm, Chapman, R, Haas, F, Liang, X, Azaiez, F, Behera, Br, Burns, M, Corradi, L, Curien, D, Deacon, An, Dombradi, Z, Farnea, E, Fioretto, E, Gadea, A, Hodsdon, A, Ibrahim, F, Jungclaus, A, Keyes, K, Kumar, V, Latina, A, Marginean, N, Montagnoli, Giovanna, Napoli, Dr, Ollier, J, O'Donnell, D, Papenberg, A, Pollarolo, G, Salsac, Md, Scarlassara, Fernando, Smith, Jf, Spohr, Km, Stanoiu, M, Stefanini, Am, Szilner, S, Trotta, M, Verney, D., Département Recherches Subatomiques (DRS-IPHC), 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)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université 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), 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: binary grazing reactions, shell-model calculations, 41S, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: Yrast states in the neutron-rich 41S nucleus have been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of 36S ions with a thin 208Pb target. The magnetic spectrometer, PRISMA, and the γ -ray array, CLARA, were used in the measurements. γ -ray transitions of energy 449 and 638 keV were observed. Results from published intermediate-energy Coulomb excitation measurements in combination with those from the present work have led to the construction of a new 41S level scheme. Proposed J π values are based on experimental observation and on model-dependent arguments. The level scheme and published electromagnetic transition probabilities are discussed within the context of state-of-art shell-model calculations using the SDPF-U effective interaction. In contrast with the excellent agreement observed in earlier published work, here there are significant discrepancies between experiment and the results of shell-model calculations.
Published: 2011

175. Spectroscopy of No-253 and its daughters

Author: Lopez-Martens, A., Wiborg-Hagen, T., Hauschild, K., Chelnokov, M.L, Chepigin, Vi, Curien, D., Dorvaux, O., Drafta, G., Gall, B., Gorgen, A., Guttormsen, M., Kabachenko, A.P, Katrasev, D.E, Kutsarova, T., Kuznetsov, A.N, Larsen, A.C, Malyshev, O.N, Minkova, A., Mullins, S., Nyhus, H.T, Pantelica, D., Piot, J., Popeko, A.G, Saro, S., Scintee, N., Siem, S., Syed, N.U.H, Sokol, E.A, Svirikhin, A.I, Yeremin, A.V, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (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), 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), 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: 2n), (Ca-48, multipolarities, I-gamma, pi, Q(alpha). No-253, measured E-alpha, alpha gamma, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], NUCLEAR REACTIONS Pb-207(Ca-48, deduced levels, 3n) E=220 MeV, T-1/2, E-gamma, E(ce), I(ce), (FM)-F-249, alpha(ce)-coin, I-alpha, deduced ICCs
Abstract: New high-statistics data have been obtained on the decay properties of No-253 and its daughters using the reaction Pb-207(Ca-48, 2n)No-253. This was made possible thanks to an improved transmission of fusion evaporation residues through the VASSILISSA recoil separator and an increased efficiency of the GABRIELA detector setup. The decay schemes of No-253 and Fm-249 have been revisited. The known level scheme of Fm-249 has been confirmed, including a new level at 669 keV excitation energy. The observation of L X-rays in coincidence with the a decay of Fm-249 gives additional support to the ground-state configuration of 1/2(+)[631] instead of 5/2(+)[622] for Cf-245. In both Fm-249 and Cf-245, the interpretation of the data has been checked by comparing experimental a-particle and gamma-ray spectra with realistic simulations of the decay cascades and of the interaction of particles and photons in the detectors of GABRIELA. The population of a 0.7 ms isomeric state attributed to No-253 is confirmed by an a-tagged calorimetric measurement and the corresponding gamma and electron decay spectra are presented. Possible evidence for more than one isomer is given and a tentative partial decay scheme is discussed in the light of the available experimental data, systematics and theoretical expectations. (C) 2011 Elsevier B.V. All rights reserved.
Published: 2011

176. Spectroscopy of neutron-richP34,35,36,37,38populated in binary grazing reactions

Author: Chapman, R., primary, Hodsdon, A., additional, Bouhelal, M., additional, Haas, F., additional, Liang, X., additional, Azaiez, F., additional, Wang, Z. M., additional, Behera, B. R., additional, Burns, M., additional, Caurier, E., additional, Corradi, L., additional, Curien, D., additional, Deacon, A. N., additional, Dombrádi, Zs., additional, Farnea, E., additional, Fioretto, E., additional, Gadea, A., additional, Ibrahim, F., additional, Jungclaus, A., additional, Keyes, K., additional, Kumar, V., additional, Lunardi, S., additional, Mărginean, N., additional, Montagnoli, G., additional, Napoli, D. R., additional, Nowacki, F., additional, Ollier, J., additional, O'Donnell, D., additional, Papenberg, A., additional, Pollarolo, G., additional, Salsac, M.-D., additional, Scarlassara, F., additional, Smith, J. F., additional, Spohr, K. M., additional, Stanoiu, M., additional, Stefanini, A. M., additional, Szilner, S., additional, Trotta, M., additional, and Verney, D., additional
Published: 2015
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177. Spectroscopy of Transfermium Nuclei Using the GABRIELA Setup

Author: Hagen, T.W., Lopez-Martens, A., Hauschild, K., Belozerov, A.V., Chelnokov, M.L., Chepigin, V.I., Curien, D., Dorvaux, O., Drafta, G., Gall, B., Görgen, A., Guttormsen, M., Isaev, A.V., Izosimov, I.N., Kabachenko, A.P., Katrasev, D.E., Kutsarova, T., Kuznetsov, A.N., Larsen, A.C., Malyshev, O.N., Minkova, A., Mullins, S., Nyhus, H.T., Pantelica, D., Piot, J., Popeko, A.G., Saro, S., Scintee, N., Siem, S., Sokol, E.A., Svirikhin, A.I., Yeremin, A.V., Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (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), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), 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: ELEMENTS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, DECAY
Abstract: International audience; Heavy elements above Fm (Z = 100) are nuclei with vanishing liquid-drop fission barriers and are therefore entirely stabilized by quantum shell effects. Due to the large density of single-particle levels and strong polarized Coulomb fields, theoretical predictions of magic numbers are extremely model dependent. Furthermore, shell closures for one nucleon species depend strongly on the number of the other species. Reliable experimental data is needed in order to test and constrain theory. As there is a lack of such data in the region, new data is needed along with the confirmation of previous data. A detection system dedicated to the spectroscopy of transfermium nuclei was constructed in 2004 and installed at the focal plane of the VASSILISSA separator at the FLNR, Dubna, by a Franco-Russian collaboration. The results from the 2009 campaign will be presented.
Published: 2010

178. Search for 2d5/2 Neutron States in $^{69}$Ni

Author: Moukaddam, M., Duchêne, G., Beaumel, D., Burgunder, G., Caceres, L., Clément, E., Curien, D., Didierjean, F., Fernandez, B., Finck, Ch., Flavigny, F., Franchoo, S., Gibelin, J., Giron, S., Gillibert, A., Goasduff, A., Grévy, S., Guillot, J., Haas, F., Hammache, F., Harakeh, M.N., Kemper, K., Lapoux, V., Matea, Y., Matta, A., Nalpas, L., Nowacki, F., Obertelli, A., Pancin, J., Perrot, L., Piot, J., Pllumbi, E., Raabe, R., Scarpaci, J.A., De Séréville, N., Sieja, K., Sorlin, O., Stefan, I., Stodel, C., Thomas, J.C., 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université 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), 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), and Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 21.10.Pc, 25.60.Je, 29.38.+c, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Expérience GANIL; International audience; It has been shown that the neutron 2d5=2 orbital has to be included in shell-model calculations to explain the large quadrupole collectivity observed in the Fe and Cr of N = 40 region, probably a new island of inversion similar to the one known for light nuclei around N = 20. Indeed, in these calculations using a large valence neutron space, the position, i.e. the singleparticle energy, of the 2d5=2 orbital is a crucial ingredient. The experiment discussed in this paper aims to determine the $\nu$1g9=2–$\nu$2d5=2 gap using the neutron stripping reaction d(68Ni; p)68Ni which has been performed at GANIL in inverse kinematics. Preliminary results are presented.
Published: 2010

179. $\gamma$-spectroscopy of positive parity bands in the Gd$^{156}$ nucleus

Author: Vancraeyenest, A., Guinet, D., Curien, D., Stézowski, O., Doan, Q.T., Redon, N., Dudek, J., Greenlees, P.T., Jones, P., Institut de Physique Nucléaire de Lyon (IPNL), 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), Institut Pluridisciplinaire Hubert Curien (IPHC), and Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2010

180. High-spin states inLa136and possible structure change in theN=79region

Author: Nishibata, H., primary, Leguillon, R., additional, Odahara, A., additional, Shimoda, T., additional, Petrache, C. M., additional, Ito, Y., additional, Takatsu, J., additional, Tajiri, K., additional, Hamatani, N., additional, Yokoyama, R., additional, Ideguchi, E., additional, Watanabe, H., additional, Wakabayashi, Y., additional, Yoshinaga, K., additional, Suzuki, T., additional, Nishimura, S., additional, Beaumel, D., additional, Lehaut, G., additional, Guinet, D., additional, Desesquelles, P., additional, Curien, D., additional, Higashiyama, K., additional, and Yoshinaga, N., additional
Published: 2015
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181. Observation ofγvibrations and alignments built on non-ground-state configurations inDy156

Author: Majola, S. N. T., primary, Hartley, D. J., additional, Riedinger, L. L., additional, Sharpey-Schafer, J. F., additional, Allmond, J. M., additional, Beausang, C., additional, Carpenter, M. P., additional, Chiara, C. J., additional, Cooper, N., additional, Curien, D., additional, Gall, B. J. P., additional, Garrett, P. E., additional, Janssens, R. V. F., additional, Kondev, F. G., additional, Kulp, W. D., additional, Lauritsen, T., additional, McCutchan, E. A., additional, Miller, D., additional, Piot, J., additional, Redon, N., additional, Riley, M. A., additional, Simpson, J., additional, Stefanescu, I., additional, Werner, V., additional, Wang, X., additional, Wood, J. L., additional, Yu, C.-H., additional, and Zhu, S., additional
Published: 2015
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182. Shell evolution beyondN=40:Cu69,71,73

Author: Sahin, E., primary, Doncel, M., additional, Sieja, K., additional, de Angelis, G., additional, Gadea, A., additional, Quintana, B., additional, Görgen, A., additional, Modamio, V., additional, Mengoni, D., additional, Valiente-Dobón, J. J., additional, John, P. R., additional, Albers, M., additional, Bazzacco, D., additional, Benzoni, G., additional, Birkenbach, B., additional, Cederwall, B., additional, Clément, E., additional, Curien, D., additional, Corradi, L., additional, Désesquelles, P., additional, Dewald, A., additional, Didierjean, F., additional, Duchêne, G., additional, Eberth, J., additional, Erduran, M. N., additional, Farnea, E., additional, Fioretto, E., additional, de France, G., additional, Fransen, C., additional, Gernhäuser, R., additional, Gottardo, A., additional, Hackstein, M., additional, Hagen, T., additional, Hernández-Prieto, A., additional, Hess, H., additional, Hüyük, T., additional, Jungclaus, A., additional, Klupp, S., additional, Korten, W., additional, Kusoglu, A., additional, Lenzi, S. M., additional, Ljungvall, J., additional, Louchart, C., additional, Lunardi, S., additional, Menegazzo, R., additional, Michelagnoli, C., additional, Mijatović, T., additional, Million, B., additional, Molini, P., additional, Montagnoli, G., additional, Montanari, D., additional, Möller, O., additional, Napoli, D. R., additional, Obertelli, A., additional, Orlandi, R., additional, Pollarolo, G., additional, Pullia, A., additional, Recchia, F., additional, Reiter, P., additional, Rosso, D., additional, Rother, W., additional, Salsac, M.-D., additional, Scarlassara, F., additional, Schlarb, M., additional, Siem, S., additional, Singh, Pushpendra P., additional, Söderström, P.-A., additional, Stefanini, A. M., additional, Stézowski, O., additional, Sulignano, B., additional, Szilner, S., additional, Theisen, Ch., additional, Ur, C. A., additional, and Yalcinkaya, M., additional
Published: 2015
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183. gamma-ray spectroscopy of neutron-rich S-40

Author: Wang, Z. M., Chapman, R., Liang, X., Haas, F., Azaiez, F., Behera, B.R., Burns, M., Caurier, E., Corradi, L., Curien, D., Deacon, A.N., Dombradi, Zs., Farnea, E., Fioretto, E., Gadea, A., Hodsdon, A., Ibrahim, F., Jungclaus, A., Keyes, K., Kumar, V., Latina, A., Lunardi, S., Marginean, N., Montagnoli, G., Napoli, D.R., Nowacki, F., Ollier, J., O’Donnell, D., Papenberg, A., Pollarolo, G., Salsac, M.-D., Scarlassara, F., Smith, J.F., Spohr, K.M., Stanoiu, M., Stefanini, A.M., Szilner, Suzana, Trotta, M., and Verney, D.
Subjects: Nuclear Theory, grazing collsions, 38Cl, PRISMA+CLARA, shell-model calculations, Nuclear Experiment
Abstract: Yrast states up to (6+) in the neutron-rich 40S nucleus have been studied using binary grazing reactions produced by the interaction of a 215 MeV beam of 36S ions with a thin 208Pb target. The novel experimental setup that combines the large acceptance magnetic spectrometer, PRISMA, and the high-efficiency γ -ray detection array, CLARA, was used. A new γ -ray transition at an energy of 1572 keV was observed and tentatively assigned to the (6+) → (4+) transition. A comparison of experimental observations and the results of large-scale 0hω sd-pf shell-model calculations indicates that one- and two-proton excitations from the 2s1/2 to the 1d3/2 orbitals play an important role in reproducing the 40S yrast level structure and the published B(E2 ; 0+g.s.→ 2+) value. The structure of the yrast states of the even-A isotopes of sulfur is interpreted in terms of the configurations of valence protons and neutrons within the context of large-scale 0hω sd-pf shell-model calculations.
Published: 2010

184. A study of intruder negative-parity states of neutron-rich 33Si

Author: Wang, Z.M., Chapman, R., Liang, X., Haas, F., Bouhelal, M., Azaiez, F., Beghini, S., Behera, B.R., Burns, M., Caurier, E., Corradi, Lorenzo, Curien, D., Deacon, A.N., Dombradi, Z.S., Farnea, E., Gadea, A., Hodsdon, A., Ibrahim, F., Jungclaus, A., Keyes, K., Kumar, V., Latina, A., Marginean, N., Montagnoli, G., Napoli, D.R., Nowacki, F., Ollier, J., O’Donnell, D., Papenberg, A., Pollarolo, G., Salsac, M.-D., Scarlassara, F., Smith, J.F., Spohr, K.M., Stanoiu, M., Stefanini, A.M., Szilner, Suzana, Trotta, Monica, and Verney, D.
Subjects: neutron rich Si, gamma-particle coincidences, transfer reactions, large-scale shell-model calculations, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Experiment
Abstract: Yrast states in the neutron-rich 33Si nucleus have been studied using binary grazing reactions produced by the interaction of a 215 MeV beam of 36S ions with a thin 208Pb target. An experimental setup which combines the large acceptance magnetic spectrometer, PRISMA, and the high efficiency gamma-ray detection array, CLARA, was used in the experiment. Four new gamma-ray photopeaks at energies of 971, 1724, 1772, and 2655 keV were observed and assigned to the 33Si level scheme. The experimental level scheme is compared with the results of p-sd-pf large-scale shell-model calculations using the recently developed PSDPFB effective interaction ; good agreement is obtained. The structure of the populated states of 33Si is discussed within the context of an odd-neutron coupled to states of the 32Si core.
Published: 2010

185. Intruder negative-parity states of neutron-rich 33Si

Author: Wang, Z.M., Chapman, R., Liang, X., Haas, F., Bouhelal, M., Azaiez, F., Behera, B.R., Burns, M., Caurier, E., Corradi, L., Curien, D., N. Deacon, A., Dombrádi, Zs., Farnea, E., Fioretto, E., Gadea, A., Hodsdon, A., Ibrahim, F., Jungclaus, A., Keyes, K., Kumar, V., Latina, A., Mărginean, N., Montagnoli, G., Napoli, D.R., Nowacki, F., Ollier, J., O'Donnell, D., Papenberg, A., Pollarolo, G., Salsac, M.D., Scarlassara, F., F. Smith, J., M. Spohr, K., Stanoiu, M., Stefanini, A.M., Szilner, S., Trotta, M., Verney, 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), 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.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Yrast states in the neutron-rich 1433Si19 nucleus have been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of 36S ions with a thin 208Pb target. An experimental setup that combines the large-acceptance magnetic spectrometer PRISMA and the high-efficiency γ-ray detection array CLARA was used in the experiment. Four new γ-ray photopeaks at energies of 971, 1724, 1772, and 2655 keV were observed and assigned to the 33Si level scheme. The experimental level scheme is compared with the results of 1ℏω p-sd-pf large-scale shell-model calculations using the recently developed PSDPFB effective interaction; good agreement is obtained. The structure of the populated states of 33Si is discussed within the context of an odd neutron coupled to states of the 32Si core.
Published: 2010

186. Intruder negative-parity states of neutron-rich Si33

Author: Wang, Z. M., Chapman, R., Liang, X., Haas, F., Bouhelal, M., Azaiez, F., Behera, B. R., Burns, M., Caurier, E., Corradi, L., Curien, D., Deacon, A. N., Dombradi, Z., Farnea, E., Fioretto, E., Gadea, A., Hodsdon, A., Ibrahim, F., Jungclaus, A., Keyes, K., Kumar, V., Latina, A., Marginean, N., Montagnoli, G., Napoli, D. R., Nowacki, F., Ollier, J., O'Donnell, D., Papenberg, A., Pollarolo, Giovanni, Salsac, M. D., Scarlassara, F., Smith, J. F., Spohr, K. M., Stanoiu, M., Stefanini, A. M., Szilner, S., Trotta, M., and Verney, D.
Abstract: Yrast states in the neutron-rich 1433Si19 nucleus have been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of S36 ions with a thin Pb208 target. An experimental setup that combines the large-acceptance magnetic spectrometer PRISMA and the high-efficiency γ-ray detection array CLARA was used in the experiment. Four new γ-ray photopeaks at energies of 971, 1724, 1772, and 2655 keV were observed and assigned to the Si33 level scheme. The experimental level scheme is compared with the results of 1ω p-sd-pf large-scale shell-model calculations using the recently developed PSDPFB effective interaction; good agreement is obtained. The structure of the populated states of Si33 is discussed within the context of an odd neutron coupled to states of the Si32 core. © 2010 The American Physical Society., This work was supported in part by the EPSRC (UK) and by the European Union under Contract No. RII3-CT-2004-506065. Five of us (D.O., M.B., A.H., K.K., and A.P.)acknowledge financial support from the EPSRC. Z.M.W acknowledges support from ORSAS and from the University of the West of Scotland. A.J. acknowledges financial supportfrom the Spanish Ministerio de Ciencia e Innovación under Contract Nos. FPA2007-66069 and FPA2009-13377-C02-02. Zs.D. acknowledges the financial support from OTKA Project No. K68801.
Published: 2010

187. γ-ray spectroscopy of neutron-rich 40S

Author: M. Wang, Z., Chapman, R., Liang, X., Haas, F., Azaiez, F., R. Behera, B., Burns, M., Caurier, E., Corradi, L., Curien, D., N. Deacon, A., Dombrádi, Zs., Farnea, E., Fioretto, E., Gadea, A., Hodsdon, A., Ibrahim, F., Jungclaus, A., Keyes, K., Kumar, V., Latina, A., Lunardi, S., Mărginean, N., Montagnoli, G., R. Napoli, D., Nowacki, F., Ollier, J., O'Donnell, D., Papenberg, A., Pollarolo, G., Salsac, M.-D., Scarlassara, F., F. Smith, J., M. Spohr, K., Stanoiu, M., M. Stefanini, A., Szilner, S., Trotta, M., Verney, 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), 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: Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Yrast states up to (6+) in the neutron-rich 40S nucleus have been studied using binary grazing reactions produced by the interaction of a 215 MeV beam of 36S ions with a thin 208Pb target. The novel experimental setup that combines the large acceptance magnetic spectrometer, PRISMA, and the high-efficiency γ-ray detection array, CLARA, was used. A new γ-ray transition at an energy of 1572 keV was observed and tentatively assigned to the (6+)→(4+) transition. A comparison of experimental observations and the results of large-scale 0ℏω sd-pf shell-model calculations indicates that one- and two-proton excitations from the 2s1/2 to the 1d3/2 orbitals play an important role in reproducing the 40S yrast level structure and the published B(E2;0g.s.+→21+) value. The structure of the yrast states of the even-A isotopes of sulfur is interpreted in terms of the configurations of valence protons and neutrons within the context of large-scale 0ℏω sd-pf shell-model calculations.
Published: 2010

188. 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

189. Study of collisions of the radioactive Ne-24 beam at 7.9 MeV/u on Pb-208

Author: Benzoni, G., Azaiez, F., Stefan, G. I., Franchoo, S., Battacharyya, S., Borcea, R., Bracco, A., Corradi, L., Curien, D., France, G. D., Dombradi, Z., Fioretto, E., Grevy, S., Ibrahim, F., Leoni, S., Montanari, D., Mukherjee, G., Pollarolo, Giovanni, Redon, N., Regan, P. H., Schmitt, C., Sletten, G., Sohlers, D., Stanoiu, M., Szilner, S., and Verney, D.
Published: 2010

190. Gamma-ray spectroscopy of 38Cl using grazing reactions

Author: O’Donnell, D., Chapman, R., Liang, X., Azaiez, F., Haas, F., Beghini, S., Behera, B.R., Burns, M., Caurier, E., Corradi, L., Curien, D., Deacon, A.N., Dombradi, Z.S., Farnea, E., Fioretto, E., Gadea, A., Hodsdon, A., Ibrahim, F., Jungclaus, A., Keyes, K., Latina, A., Marginean, N., Montagnoli, G., Napoli, D.R., Nowacki, F., Ollier, J., Papenberg, A., Pollarolo, G., Salsac, M.-D., Scarlassara, F., Smith, J.F., Spohr, K.M., Stanoiu, M., Stefanini, A.M., Szilner, Suzana, Trotta, M., Valiente-Dobon, J.J., Verney, D., and Wang, Z.M.
Subjects: grazing collsions, 38Cl, PRISMA+CLARA, shell-model calculations, Nuclear Experiment
Abstract: Excited states of 38Cl were populated in binary grazing reactions during the interaction of a beam of 36S ions of energy 215 MeV with a 208Pb target. The combination of the PRISMA magnetic spectrometer and the CLARA γ-ray detector array was used to identify the reaction fragments and to detect their decay via γ-ray emission. A level scheme for 38Cl is presented and discussed within the context of the systematics of neighboring nuclei and is compared with the results of state-of-the-art shell-model calculations.
Published: 2010

191. Spectroscopic information about a hypothetical tetrahedral configuration in 156Gd

Author: Doan, Q.T., Vancraeyenest, A., Stezowski, O., Guinet, D., Curien, D., Dudek, J., Lautesse, Ph., Lehaut, G., Redon, N., Schmitt, C., Duchêne, G., Gall, B., Molique, H., Piot, J., T. Greenlees, P., Jakobsson, U., Julin, R., Juutinen, S., Jones, P., Ketelhut, S., Nyman, M., Peura, P., Rahkila, P., Gozdz, A., Mazurek, K., Schunck, N., Zuber, K., Bednarczyk, P., Maj, A., Astier, A., Deloncle, I., Verney, D., De Angelis, G., Gerl, J., 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), Institut Pluridisciplinaire Hubert Curien (IPHC), 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), 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), 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and 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)
Subjects: 21.10.−k, 23.20.En, 27.70.+q, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: The nucleus 156Gd was produced by fusion-evaporation reaction 154Sm(α, 2n) and studied [7] by using the JUROGAM γ -ray spectrometer of the Department of Physics of the University of Jyv¨askyl¨a.; International audience; A detailed γ -ray spectroscopy of the lowest two negative-parity bands in 156Gd has been performed in the framework of the TetraNuc collaboration. Relative γ -ray intensities of all transitions connecting these bands as well as the ones to the ground-state band are presented. Angular distribution analysis has been performed to determine the nature and the mixing ratio of one of the newly established transitions linking the two excited bands.
Published: 2010

192. Binary reaction decays from Mg-24+C-12

Author: Beck, C, Papka, P, Sanchez i Zafra, A, Thummerer, S, Azaiez, F, Bednarczyk, P, Courtin, S, Curien, D, Dorvaux, O, Lebhertz, D, Nourreddine, A, Rousseau, M, von Oertzen, W, Gebauer, B, Wheldon, C, Kokalova, T, de Angelis, G, Gadea, A, Lenzi, S, Szilner, S, Napoli, DR, Catford, WN, Jenkins, DG, and Royer, G
Published: 2009

193. Reaction mechanisms in 24Mg+12C and 32S+24Mg

Author: Beck, C., S&#224, nchez i Zafra, A., Papka, P., Thummerer, S., Azaiez, F., Courtin, S., Curien, D., Dorvaux, O., Lebhertz, D., Nourreddine, A., Rousseau, M., von Oertzen, W., Gebauer, B., Kokalova, Tz., Wheldon, C., de Angelis, G., Gadea, A., Lenzi, S., Napoli, D.R., Szilner, S., Catford, W.N., Jenkins, D.G., Royerf, G., and Rehm, K. Ernst Back, Birger B. Esbensen, Henning Lister, C.J.
Subjects: light nuclei, deformation, quasimolecular structures
Abstract: The occurence of “ exotic” shapes in light N = Z -like nuclei is investigated for 24Mg+12C and 32S+24Mg. Various approaches of superdeformed and hyperdeformed bands associated with quasimolecular resonant structures with low spin are presented. For both reactions, exclusive data were collected with the Binary Reaction Spectrometer in coincidence with EUROBALL IV installed at the VIVITRON Tandem facility of Strasbourg. Specific structures with large deformation were selectively populated in binary reactions and their associated -decays studied. The analysis of the binary and ternary reaction channels is discussed.
Published: 2009

194. Rotation and shape changes in 151Tb and 196Pb: Probes of nuclear structure and tunneling process in warm nuclei. II. Microscopic Monte Carlo simulation

Author: Leoni, S., Benzoni, G., Blasi, N., Bracco, A., Camera, F., Corsi, A., C. L. Crespi, F., Mason, P., Million, B., Montanari, D., Pignanelli, M., Vigezzi, E., Wieland, O., Matsuo, M., R. Shimizu, Y., Curien, D., Duchêne, G., Robin, J., Bednarczyk, P., Castoldi, M., Herskind, B., Kmiecik, M., Maj, A., Meczynski, W., Styczen, J., Zieblinski, M., Zuber, K., Zucchiatti, A., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (INFN, Sezione di Genova), Istituto Nazionale di Fisica Nucleare (INFN), and National Institute for Nuclear Physics (INFN)
Subjects: 21.10.Re, 23.20.Lv, 25.70.Gh, 27.70.+q, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: A Monte Carlo simulation of the $\gamma$ decay of superdeformed nuclei has been developed. It is based on microscopic calculations for the energy levels, E2 decay probabilities, collective mass parameters, and potential energy barriers. The use of microscopically calculated quantities largely reduces the parameters of the simulation, allowing one to focus on the basic ingredients of the physical processes. Calculations are performed for the warm rotating superdeformed nuclei 151Tb and 196Pb, for which high statistics Euroball IV data are available. The dependence on the simulation parameters is investigated, together with the basic features of the microscopic calculations
Published: 2009

195. Rotation and shape changes in 151Tb and 196Pb: Probes of nuclear structure and tunneling process in warm nuclei. I. Experimental analysis

Author: Leoni, S., Benzoni, G., Blasi, N., Bracco, A., Camera, F., Corsi, A., C. L. Crespi, F., Mason, P., Million, B., Montanari, D., Pignanelli, M., Vigezzi, E., Wieland, O., Matsuo, M., R. Shimizu, Y., Curien, D., Duchêne, G., Robin, J., Bednarczyk, P., Castoldi, M., Herskind, B., Kmiecik, M., Maj, A., Meczynski, W., Styczen, J., Zieblinski, M., Zuber, K., Zucchiatti, A., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (INFN, Sezione di Genova), Istituto Nazionale di Fisica Nucleare (INFN), and National Institute for Nuclear Physics (INFN)
Subjects: 21.10.Re, 23.20.Lv, 25.70.Gh, 27.70.+q, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: The $\gamma$ decay associated with the warm rotation of the superdeformed nuclei 151Tb and 196Pb has been measured with the Euroball IV array. Several experimental quantities are presented, putting strong constraints on the decay dynamics in the superdeformed well. The data are successfully reproduced using a Monte Carlo simulation of the $\gamma$ decay based on microscopically calculated energy levels, E2 decay probabilities, collective mass parameters, and potential energy barriers between the wells associated with normal and super deformation. This allows one to test the basic ingredients of the physical process, such as the strength of the two-body residual interaction and the potential barriers as a function of spin and excitation energy. We also show that the data probe the E1 strength function, indicating an enhancement around 1–2 MeV $\gamma$ rays, which might be related to octupole vibrations
Published: 2009

196. Probing the Order-to-Chaos Region in Superdeformed $^{151}$Tb and $^{196}$Pb Nuclei with Continuum $\gamma$ Transitions

Author: Leoni, S., Benzoni, G., Blasi, N., Bracco, A., Brambilla, S., Camera, F., Corsi, A., Crespi, F. C. L., Mason, P., Million, B., Montanari, D., Pignanelli, M., Vigezzi, E., Wieland, O., Matsuo, M., Shimizu, Y. R., Bednarczyk, P., Castoldi, M., Curien, D., Duchene, G., Herskind, B., Kmiecik, M., Maj, A., Meczynski, W., Robin, J., Styczen, J., Zieblinski, M., Zuber, K., Zucchiatti, A., Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Laboratori Nazionali di Legnaro (LNL), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (INFN, Sezione di Genova), Istituto Nazionale di Fisica Nucleare [Milano] (INFN), and National Institute for Nuclear Physics (INFN)
Subjects: Nuclear Theory, 21.10.Re, 23.20.Lv, 27.70.+q, 27.80.+w, FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: The $\gamma$ decay associated with the warm rotation of the superdeformed nuclei 151Tb and 196Pb has been measured with the EUROBALL IV array. Several independent quantities provide a stringent test of the population and decay dynamics in the superdeformed well. A Monte Carlo simulation of the $\gamma$ decay based on microscopic calculations gives remarkable agreement with the data only assuming a large enhancement of the B(E1) strength for 1–2 MeV $\gamma$ rays, which may be related to the evidence for octupole vibrations in both mass regions.
Published: 2008

197. High-K, t$_{1/2}$ = 1.4(1) ms, isomeric state in $^{255}$Lr

Author: Hauschild, K., Lopez-Martens, A., V. Yeremin, A., Dorvaux, O., Antalic, S., V. Belozerov, A., Briançon, Ch., L. Chelnokov, M., I. Chepigin, V., Curien, D., Gall, B., Görgen, A., A. Gorshkov, V., Guttormsen, M., Hanappe, F., P. Kabachenko, A., Khalfallah, F., C. Larsen, A., N. Malyshev, O., Minkova, A., G. Popeko, A., Rousseau, Marc, Rowley, N., Saro, S., V. Shutov, A., Siem, S., Stuttgè, L., I. Svirikhin, A., U. H. Syed, N., Theisen, Ch., Venhart, M., 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), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and 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)
Subjects: 27.90.+b, 23.35.+g, 23.20.Lv, 23.20.Nx, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: isomeric state in 255Lr with a half-life of t1/2 = 1.4(1) ms and Ex>720-keV has been observed for the first time using the GABRIELA setup at the focal plane of the VASSILISSA separator. Based on its K-forbiddeness, the configuration of the state is most probably formed by coupling the valence proton to a two quasiparticle neutron excitation. Possible three quasiparticle configurations are discussed.
Published: 2008

198. Discrete decay of the yrast superdeformed band in the Tb151 nucleus

Author: Robin, J., Odahara, A., Duchene, G., Beck, F. A., Twin, P., Byrski, Th., Curien, D., Adimi, N., Appelbe, D. E., Bednarczyk, P., Bracco, A., Cederwall, B., Courtin, S., Cullen, D. M., Dorvaux, O., Ertuck, S., De France, G., Gall, B., Joshi, P., King, S. L., Korichi, A., Lagergren, K., Lo Bianco, G., Leoni, S., Lopez-Martens, A., Lunardi, S., Million, B., Nourredine, A., Pachoud, E., Paul, E. S., Petrache, C., Piqueras, I., Redon, N., Saltarelli, A., Simpson, J., Stezowski, O., Venturelli, R., Vivien, J. P., and Zuber, K.
Published: 2008

199. Extended investigation of superdeformed bands in Tb151,152 nuclei

Author: Robin, J., Byrski, Th., Duchene, G., Beck, F. A., Curien, D., Dubray, N., Dudek, J., Gozdz, A., Odahara, A., Schunck, N., Adimi, N., Appelbe, D. E., Bednarczyk, P., Bracco, A., Cederwall, B., Courtin, S., Cullen, D. M., Dorvaux, O., Ertuck, S., De France, G., Gall, B., Joshi, P., King, S. L., Korichi, A., Lagergren, K., Lo Bianco, G., Leoni, S., Lopez-Martens, A., Lunardi, S., Million, B., Nourredine, A., Pachoud, E., Paul, E. S., Petrache, C., Piqueras, I., Redon, N., Saltarelli, A., Simpson, J., Stezowski, O., Venturelli, R., Vivien, J. P., and Zuber, K.
Published: 2008

200. Extended investigation of superdeformed bands in $^{151,152}$Tb nuclei

Author: Robin, J., Byrski, Th., Duchêne, G., Beck, F.A., Curien, D., Dubray, N., Dudek, J., Gó&#378d&#378, A., Odahara, A., Schunck, N., Adimi, N., Appelbe, D.E., Bednarczyk, P., Bracco, A., Cederwall, B., Courtin, S., M. Cullen, D., Dorvaux, O., Ertück, S., De France, G., Gall, B., Joshi, P., L. King, S., Korichi, A., Lagergren, K., Lo Bianco, G., Leoni, S., Lopez-Martens, A., Lunardi, S., Million, B., Nourredine, A., Pachoud, E., S. Paul, E., Petrache, C., Piqueras, I., Redon, N., Saltarelli, A., Simpson, J., Stezowski, O., Venturelli, R., Vivien, J.P., Zuber, K., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (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), Institut de Physique Nucléaire de Lyon (IPNL), 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), 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 Claude Bernard Lyon 1 (UCBL), and 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)
Subjects: 21.10.Re, 23.20.En, 23.20.Lv, 27.70.+q, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: A detailed study of known and new SD bands in Tb isotopes has been performed with the use of the EUROBALL IV gamma-ray array. The high-statistics data set has allowed for the extension of known SD bands at low and high spins by new gamma-ray transitions. These transitions, as it turns out, correspond to the rotational frequencies where the principal superdeformed gaps (Z=66,N=86) close giving rise to up- or down-bending mechanisms. This enables to attribute the underlying theoretical configurations with much higher confidence as compared to the previous identifications. Five new SD bands have been discovered, three of them assigned to the 152Tb and the two others to the 151Tb nuclei. Nuclear mean-field calculations have been used to interpret the structure of known SD bands as well as of the new ones in terms of nucleonic configurations.
Published: 2008

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