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1,389 results on '"Farnea, E"'

151. Gamma-ray tracking with the MARS detector

Author: Kröll, Th, Bazzacco, D., Venturelli, R., Quintana Arnes, B., Ur, C. A., Bellato, M., Isocrate, R., Manea, Ch, Menegazzo, R., Pavan, P., Rossi Alvarez, C., Farnea, E., Gadea, A., Rosso, D., Spolaore, P., Camera, F., Million, B., Musso, E., Pullia, A., Wieland, O., Casati, G., Geraci, A., Ripamonti, G., and Descovich, M.
Published: 2003
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152. The yrast spectroscopy of neutron-rich nuclei produced in deep-inelastic processes

Author: Ollier, J., Chapman, R., Liang, X., Labiche, M., Spohr, K.-M., Davison, M., de Angelis, G., Axiotis, M., Kröll, T., Napoli, D. R., Martinez, T., Bazzacco, D., Farnea, E., Lunardi, S., and Smith, A. G.
Published: 2003
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153. Structure of the N=50 As, Ge, Ga nuclei

Author: Sahin, Eda, 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, Igor T., Chapman, R., Corradi, L., Courtin, S., Curien, D., Pramanik, U. Datta, Didierjean, F., Dorvaux, O., Erduran, M. N., Erturk, S., Farnea, E., Fioretto, E., de France, Gilles, Franchoo, S., Gall, B., Gottardo, Andrea, 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, Caterina, Modamio, V., Montagnoli, G., Montanari, D., Moro, R., Mouginot, B., Napoli, Daniel R., O'Donnell, D., Oliveira, J. R. B., Ollier, J., Orlandi, R., Pollarolo, G., Recchia, Francesco, Robin, J., Salsac, Marie Delphine, Scarlassara, F., Singh, R. P., Silvestri, R., Smith, J. F., Stefan, I., Stefanini, A. M., Subotić, Krunoslav M., Szilner, S., Tonev, D., Torres, D. A., Trotta, M., Ujić, Predrag, Ur, C., Valiente-Dobon, Jose Javier, Verney, D., Yalcinkaya, M., Wady, P. T., Wiedemann, K. T., Zuber, K., La Rana, Giovanni -- 0000-0003-2814-4113, Algora, Alejandro -- 0000-0002-5199-1794, O'Donnell, David -- 0000-0002-4710-3803, Ince, Elif -- 0000-0003-4821-5441, Napoli, Daniel Ricardo -- 0000-0002-8154-6958, Montanari, Daniele -- 0000-0002-1980-7686, Tonev, Dimitar -- 0000-0003-4431-6157, Gadea, Andres -- 0000-0002-4233-1970, Ujic, Predrag -- 0000-0002-2577-5633, Oliveira, Jose Roberto -- 0000-0003-1362-7382, Datta, Ushasi -- 0000-0001-8192-1407, benzoni, giovanna -- 0000-0002-7938-0338, Scarlassara, Fernando -- 0000-0002-4663-8216, GOTTARDO, Andrea -- 0000-0002-0390-5767, Recchia, Francesco -- 0000-0002-8428-0112, Ackermann, Dieter -- 0000-0001-6284-1516, de France, Gilles -- 0000-0002-7439-1759, Celikovic, Igor -- 0000-0002-5642-4393, Montagnoli, Giovanna -- 0000-0002-8944-1456, Sahin, Eda -- 0000-0003-0683-5140, Verney, David -- 0000-0001-7924-2851, MOUGINOT, Baptiste -- 0000-0003-0957-6666, and [Sahin, E. -- de Angelis, G. -- Gadea, A. -- Corradi, L. -- Fioretto, E. -- Gottardo, A. -- Guiot, B. -- Modamio, V. -- Napoli, D. R. -- Silvestri, R. -- Stefanini, A. M. -- Valiente-Dobon, J. J.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy -- [Sahin, E.] Univ Oslo, Dept Phys, NO-0316 Oslo, Norway -- [Duchene, G. -- Faul, T. -- Byrski, T. -- Courtin, S. -- Curien, D. -- Dorvaux, O. -- Gall, B. -- Haas, F. -- Khouaja, A. -- Lebhertz, D. -- Robin, J.] CNRS, IN2P3, IPHC, Strasbourg, France -- [Duchene, G. -- Faul, T. -- Byrski, T. -- Courtin, S. -- Curien, D. -- Dorvaux, O. -- Gall, B. -- Haas, F. -- Khouaja, A. -- Lebhertz, D.] Univ Strasbourg, Strasbourg, France -- [Gadea, A. -- Algora, A.] Univ Valencia, CSIC, Inst Fis Corpuscular, Valencia, Spain -- [Lisetskiy, A. F.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA -- [Ackermann, D.] Helmholtzzentrum Schwerionenforsch GSI, Darmstadt, Germany -- [Algora, A.] Inst Nucl Res, H-4001 Debrecen, Hungary -- [Aydin, S.] Univ Aksaray, Dept Phys, Aksaray, Turkey -- [Aydin, S. -- Bazzacco, D. -- Farnea, E. -- Gottardo, A. -- Lenzi, S. -- Lunardi, S. -- Mason, P. -- Mengoni, D. -- Michelagnoli, C. -- Montagnoli, G. -- Montanari, D. -- Recchia, F. -- Scarlassara, F. -- Ur, C.] Univ Padua, Dipartimento Fis, Padua, Italy -- [Aydin, S. -- Bazzacco, D. -- Farnea, E. -- Gottardo, A. -- Lenzi, S. -- Lunardi, S. -- Mason, P. -- Mengoni, D. -- Michelagnoli, C. -- Montagnoli, G. -- Montanari, D. -- Recchia, F. -- Scarlassara, F. -- Ur, C.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy -- [Azaiez, F. -- Franchoo, S. -- Ibrahim, F. -- Mouginot, B. -- Stefan, I. -- Verney, D.] Univ Paris 11, Orsay, France -- [Azaiez, F. -- Franchoo, S. -- Ibrahim, F. -- Mouginot, B. -- Stefan, I. -- Verney, D.] CNRS, IPNO, IN2P3, F-91405 Orsay, France -- [Benzoni, G. -- Leoni, S.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy -- [Benzoni, G. -- Leoni, S.] Univ Milan, Dipartimento Fis, Milan, Italy -- [Bostan, M. -- Kusoglu, A. -- Yalcinkaya, M.] Istanbul Univ, Dept Phys, Istanbul, Turkey -- [Celikovic, I. -- Subotic, K. -- Ujic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia -- [Chapman, R. -- Mengoni, D. -- O'Donnell, D. -- Ollier, J. -- Orlandi, R. -- Smith, J. F. -- Torres, D. A. -- Wady, P. T.] Univ W Scotland, Paisley, Renfrew, Scotland -- [Pramanik, U. Datta] Saha Inst Nucl Phys, Kolkata, India -- [Didierjean, F.] Inst Pluridisciplinaire Hubert Curien, Strasbourg, France -- [Erduran, M. N.] Istanbul Sabahattin Zaim Univ, Istanbul, Turkey -- [Erturk, S.] Nigde Univ, Dept Phys, Nigde, Turkey -- [de France, G.] GANIL, F-14021 Caen, France -- [Ince, E.] Istanbul Univ, Hasan Ali Yucel Educ Fac, Istanbul, Turkey -- [La Rana, G. -- Moro, R. -- Trotta, M.] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy -- [La Rana, G. -- Moro, R. -- Trotta, M.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy -- [Labiche, M.] SERC, Daresbury Lab, STFc, Warrington WA4 4AD, Cheshire, England -- [Oliveira, J. R. B. -- Wiedemann, K. T.] Univ Sao Paulo, Sao Paulo, Brazil -- [Pollarolo, G.] Univ Turin, Dipartimento Fis Teor, Turin, Italy -- [Salsac, M. -D.] CEA Saclay, IRFU SPhN, Gif Sur Yvette, France -- [Singh, R. P.] Interuniv Accelerator Ctr, New Delhi 67, India -- [Szilner, S.] Rudjer Boskovic Inst, HR-10001 Zagreb, Croatia -- [Tonev, D.] BAS, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria -- [Zuber, K.] Inst Nucl Phys, Krakow, Poland
Subjects: gamma gamma-coin, J, pi calculated levels, Nuclear Theory, NUCLEAR REACTIONS U-238(Se-82, Ga-81), (Se-82, Ge-82), (Se-82, As-83), E=515 MeV, (fragment)gamma-coin, Ge Compton-suppressed detectors of CLARA array, thin and thick target, gamma after deexcitation using Ge Compton-suppressed detectors of CLARA array, NUCLEAR REACTIONS U-238(Se-82, Ga-81), (Se-82, Ge-82), (Se-82, As-83), deduced sigma(theta), levels, J, pi, J, pi using shell model, reaction fragments, gamma after deexcitation, levels, measured E-gamma, I gamma (theta), gamma gamma-coin, reaction fragments, measured E gamma, E=515 MeV, calculated levels, J, pi using shell model, (fragment)gamma-coin using PRISMA magnetic spectrometer, PRISMA magnetic spectrometer, deduced sigma(theta), I-gamma (theta)
Abstract: WOS: 000310091000001, The level structures of the N = 50 As-83, Ge-82, and Ga-81 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 gamma-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 Ni-78 (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. (c) 2012 Elsevier B.V. All rights reserved., NSF [PHY0244389, PHY0555396]; European Commission within the Sixth Framework Programme through I3-EURONS [RII3-CT-2004-506065]; DGF (Germany) [DE 1516/-1]; Science and Technology Facilities Council [ST/G000689/1 NuSTAR, ST/F004052/1, ST/G000689/1, ST/J000108/1], We thank O. Sorlin for the useful discussions and the accelerator crews of LNL for the excellent support. A.F.L. acknowledges partial support of this work from NSF grants PHY0244389 and PHY0555396. This work has been partially supported by the European Commission within the Sixth Framework Programme through I3-EURONS (contract No. RII3-CT-2004-506065) and the DGF (Germany under contract No. DE 1516/-1).
Published: 2012

154. Studies of fragment spin as a function of fragment mass in heavy ion induced fission reactions

Author: Choudhury, R.K., Saxena, A., Chatterjee, A., Shetty, D.V., Kapoor, S.S., Alvarez, C.R., Bazzaco, D., Beghins, S., Cinausero, M., Corradi, L., Fabris, D., Farnea, E., Fioretto, E., Gadea, A., Hontagnoli, G., Napoli, D., Nebbia, G., Prete, G., Scarlassara, F., Stefanini, A., Ur, G., and Viesti, G.
Published: 1999
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155. Decay-out of the yrast superdeformed band in 136Nd: towards an experimental extraction of the neutron pairing gap in the second well

Author: Perriès, S., Astier, A., Ducroux, L., Meyer, M., Redon, N., Petrache, C.M., Bazzacco, D., Falconi, G., Lunardi, S., Lunardon, M., Alvarez, C. Rossi, Ur, C.A., Venturelli, R., Viesti, G., Deloncle, I., Porquet, M.G., de Angelis, G., de Poli, M., Fahlander, C., Farnea, E., Foltescu, D., Gadea, A., Napoli, D.R., Podolyàk, Zs., Bracco, A., Frattini, S., Leoni, S., Cederwall, B., Johnson, A., and Wyss, R.A.
Published: 1999
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156. Collective excitations in the vicinity of N=Z

Author: de Angelis, G., Belcari, N., De Acuña, D., Napoli, D.R., Martinez, T., De Poli, M., Spolaore, P., Prete, G., Fioretto, E., Bednarczyk, P., Gadea, A., Farnea, E., Ur, C.A., Bazzacco, D., Lenzi, S.M., Lunardi, S., Pavan, P., Alvarez, C. Rossi, Soramel, F., Bizzeti, P.G., Bizzeti-Sona, A.M., Grawe, H., Schubart, R., Johnson, A., Wyss, R., Xu, F., Blasi, N., Lo Bianco, G., Nyberg, J., Persson, J., Fahlander, C., Rudolph, D., and Frauendorf, S.
Published: 1999
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157. Alpha particle emission, incomplete fusion and population of high-spin states in the reaction 120 MeV [formula omitted]

Author: Lunardon, M., Merigliano, C., Viesti, G., Fabris, D., Nebbia, G., Cinausero, M., de Angelis, G., Farnea, E., Fioretto, E., Prete, G., Brondi, A., La Rana, G., Moro, R., Principe, A., Vardaci, E., Gelli, N., Lucarelli, F., Pavan, P., Napoli, D.R., and Vedovato, G.
Published: 1999
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158. Order-to-chaos transition in warm rotating W-174 nuclei

Author: Vandone, V., Leoni, S., Bracco, A., Bottoni, S., Camera, F., Corsi, A., Crespi, F. C. L., Giaz, A., Nicolini, R., Benzoni, G., Blasi, N., Boiano, C., Brambilla, S., Million, B., Wieland, O., Bortolato, D., Calore, E., Gottardo, A., Napoli, D. R., Sahin, E., Dobon, J. J. Valiente, Bazzacco, D., Bellato, M., Farnea, E., Lunardi, S., Mengoni, D., Michelagnoli, C., Montanari, D., Recchia, F., Ur, C. A., Gadea, A., Hueyuek, T., Cieplicka, N., Maj, A., Kmiecik, M., Atac, A., Akkoyun, S., Kaskas, A., Ketenci, S., Nyberg, J., Soderstrom, P. A., Bracco, A, Nappi, E, Kmiecik, Maria -- 0000-0003-2019-2399, Huyuk, Tayfun -- 0000-0003-0597-9767, Montanari, Daniele -- 0000-0002-1980-7686, Calore, Enrico -- 0000-0002-2301-3838, Cieplicka-Orynczak, Natalia -- 0000-0002-8652-4504, Napoli, Daniel Ricardo -- 0000-0002-8154-6958, Camera, Franco -- 0000-0003-1731-4834, GOTTARDO, Andrea -- 0000-0002-0390-5767, Sahin, Eda -- 0000-0003-0683-5140, GIAZ, Agnese -- 0000-0002-2550-450X, Recchia, Francesco -- 0000-0002-8428-0112, Bottoni, Simone -- 0000-0003-2249-4825, benzoni, giovanna -- 0000-0002-7938-0338, Soderstrom, Par-Anders -- 0000-0002-9504-2814, and [Vandone, V. -- Leoni, S. -- Bracco, A. -- Bottoni, S. -- Camera, F. -- Corsi, A. -- Crespi, F. C. L. -- Giaz, A. -- Nicolini, R.] Univ Milan, I-20133 Milan, Italy -- [Vandone, V. -- Leoni, S. -- Bracco, A. -- Bottoni, S. -- Camera, F. -- Corsi, A. -- Crespi, F. C. L. -- Giaz, A. -- Nicolini, R. -- Benzoni, G. -- Blasi, N. -- Boiano, C. -- Brambilla, S. -- Million, B. -- Wieland, O.] INFN, Sez Milano, I-20133 Milan, Italy -- [Bortolato, D. -- Calore, E. -- Gottardo, A. -- Napoli, D. R. -- Sahin, E. -- Dobon, J. J. Valiente] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy -- [Bazzacco, D. -- Bellato, M. -- Farnea, E. -- Lunardi, S. -- Mengoni, D. -- Michelagnoli, C. -- Montanari, D. -- Recchia, F. -- Ur, C. A.] Univ Padua, Padua, Italy -- [Bazzacco, D. -- Bellato, M. -- Farnea, E. -- Lunardi, S. -- Mengoni, D. -- Michelagnoli, C. -- Montanari, D. -- Recchia, F. -- Ur, C. A.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy -- [Gadea, A. -- Hueyuek, T.] IFIC, Valencia, Spain -- [Cieplicka, N. -- Maj, A. -- Kmiecik, M.] PAN, Niewodniczanski Inst Nucl Phys, Krakow, Poland -- [Atac, A. -- Akkoyun, S. -- Kaskas, A.] Ankara Univ, Dept Phys, Fac Sci, TR-06100 Ankara, Turkey -- [Ketenci, S.] Nigde Univ, Dept Phys, Nidge, Turkey -- [Nyberg, J. -- Soderstrom, P. A.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden
Abstract: 178th Course of the International School of Physics Enrico Fermi on From the Big Bang to the Nucleosynthesis -- JUL 19-24, 2010 -- Varenna, ITALY, WOS: 000350800900023, The transition between order and chaos is studied in the warm rotating nucleus W-174 by gamma-spectroscopy, focusing on the conservation of selection rules of the K quantum number with the excitation energy. The W-174 nucleus was populated at high spins by the fusion-evaporation reaction of Ti-50 (at 217 MeV) on a Te-128 backed target. The experiment was performed in Legnaro National Laboratory using the AGATA Demonstrator HPGe-array (AD) coupled with an array of 27 BaF2 scintillator detectors. High-energy gamma-rays measured in the AD and in the scintillators array will be also analyzed to study the Giant Dipole Resonance (GDR) in the compound nucleus W-178. The discrimination between n and gamma in the AD detectors will be employed, following a procedure recently developed by Monte Carlo simulations and using digital Pulse Shape Analysis timing techniques., Ist Nazl Fisica Nucleare, INFN CNAF
Published: 2011

159. In-beam gamma-ray spectroscopy of the neutron-rich platinum isotope Pt 200 toward the N=126 shell gap

Author: John, Philipp Rudolf, Valiente-Dobon, J.J., Mengoni, D, Lunardi, S., Bazzacco, D., Gadea, A, Wheldon, C, Rodriguez, T.R., Alexander, T, De Angelis, G., Ashwood, N., Barr, M, Benzoni, Giovanna, Birkenbach, B, Bizzetti, PG, Bizzetti-Sona, AM, Bottoni, S., Bowry, M, Bracco, Angela, Browne, F, Bunce, M, Camera, F., Corradi, Lorenzo, Crespi, Fabio Celso Luigi, Melon, Barbara, Farnea, E., Fioretto, E., Gottardo, A, Grente, L, Hess, H, Kokalova, Tz, Korten, W., Kusoglu, A, Lenzi, S.M., Leoni, S., Ljungvall, J, Menegazzo, R., Michelagnoli, C, Mijatovic, T., Montagnoli, G., Montanari, D, Napoli, D R, Podolyak, Zs., Pollarolo, G, Recchia, F, Reiter, P., Roberts, Oliver O.J., Sahin, Esin, Salsac, M-.D, Scarlassara, Fernando, Sferrazza, Michele, Soderstrom, P.-A., Stefanini, A.M., Szilner, Suzana, Ur, C.A., Vogt, A, Walshe, J., John, Philipp Rudolf, Valiente-Dobon, J.J., Mengoni, D, Lunardi, S., Bazzacco, D., Gadea, A, Wheldon, C, Rodriguez, T.R., Alexander, T, De Angelis, G., Ashwood, N., Barr, M, Benzoni, Giovanna, Birkenbach, B, Bizzetti, PG, Bizzetti-Sona, AM, Bottoni, S., Bowry, M, Bracco, Angela, Browne, F, Bunce, M, Camera, F., Corradi, Lorenzo, Crespi, Fabio Celso Luigi, Melon, Barbara, Farnea, E., Fioretto, E., Gottardo, A, Grente, L, Hess, H, Kokalova, Tz, Korten, W., Kusoglu, A, Lenzi, S.M., Leoni, S., Ljungvall, J, Menegazzo, R., Michelagnoli, C, Mijatovic, T., Montagnoli, G., Montanari, D, Napoli, D R, Podolyak, Zs., Pollarolo, G, Recchia, F, Reiter, P., Roberts, Oliver O.J., Sahin, Esin, Salsac, M-.D, Scarlassara, Fernando, Sferrazza, Michele, Soderstrom, P.-A., Stefanini, A.M., Szilner, Suzana, Ur, C.A., Vogt, A, and Walshe, J.
Abstract: The neutron-rich nucleus Pt200 is investigated via in-beam γ-ray spectroscopy to study the shape evolution in the neutron-rich platinum isotopes towards the N=126 shell closure. The two-neutron transfer reaction Pt198(Se82, Se80)Pt200 is used to populate excited states of Pt200. The Advanced Gamma Ray Tracking Array (AGATA) demonstrator coupled with the PRISMA spectrometer detects γ rays coincident with the Se80 recoils, the binary partner of Pt200. The binary partner method is applied to extract the γ-ray transitions and build the level scheme of Pt200. The level at 1884 keV reported by Yates et al. [S. W. Yates, E. M. Baum, E. A. Henry, L. G. Mann, N. Roy, A. Aprahamian, R. A. Meyer, and R. Estep, Phys. Rev. C 37, 1889 (1988)] was confirmed to be at 1882.1 keV and assigned as the (61+) state. An additional γ ray was found and it presumably deexcites the (81+) state. The results are compared with state-of-the-art beyond mean-field calculations, performed for the even-even 190-204Pt isotopes, revealing that Pt200 marks the transition from the γ-unstable behavior of lighter Pt nuclei towards a more spherical one when approaching the N=126 shell closure., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2017

160. Isomers and high-spin structures in the N=81 isotones Xe-135 and Ba-137

Author: Vogt, A., Birkenbach, B., Reiter, P., Blazhev, A., Siciliano, M., Hadynska-Klek, K., Valiente-Dobon, J. J., Wheldon, C., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Chakrawarthy, R. S., Chapman, R., Cline, D., Corradi, L., Crespi, F. C. L., Cromaz, M., de Angelis, G., Eberth, J., Fallon, P., Farnea, E., Fioretto, E., Freeman, S. J., Fu, B., Gadea, A., Geibel, K., Gelletly, W., Gengelbach, Aila, Giaz, A., Gorgen, A., Gottardo, A., Hayes, A. B., Hess, H., Hirsch, R., Hua, H., John, P. R., Jolie, J., Jungclaus, A., Kaya, L., Korten, W., Lee, I. Y., Leoni, S., Lewandowski, L., Liang, X., Lunardi, S., Macchiavelli, A. O., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Montagnoli, G., Montanari, D., Mueller-Gatermann, C., Napoli, D., Pearson, C. J., Pellegri, L., Podolyak, Zs., Pollarolo, G., Pullia, A., Queiser, M., Radeck, F., Recchia, F., Regan, P. H., Rosiak, D., Saed-Samii, N., Sahin, E., Scarlassara, F., Schneiders, D., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J. F., Söderström, Pär-Anders, Stefanini, A. M., Steinbach, T., Stezowski, O., Szilner, S., Szpak, B., Teng, R., Ur, C., Vandone, V., Warner, D. D., Wiens, A., Wu, C. Y., Zell, K. O., Vogt, A., Birkenbach, B., Reiter, P., Blazhev, A., Siciliano, M., Hadynska-Klek, K., Valiente-Dobon, J. J., Wheldon, C., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Chakrawarthy, R. S., Chapman, R., Cline, D., Corradi, L., Crespi, F. C. L., Cromaz, M., de Angelis, G., Eberth, J., Fallon, P., Farnea, E., Fioretto, E., Freeman, S. J., Fu, B., Gadea, A., Geibel, K., Gelletly, W., Gengelbach, Aila, Giaz, A., Gorgen, A., Gottardo, A., Hayes, A. B., Hess, H., Hirsch, R., Hua, H., John, P. R., Jolie, J., Jungclaus, A., Kaya, L., Korten, W., Lee, I. Y., Leoni, S., Lewandowski, L., Liang, X., Lunardi, S., Macchiavelli, A. O., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Montagnoli, G., Montanari, D., Mueller-Gatermann, C., Napoli, D., Pearson, C. J., Pellegri, L., Podolyak, Zs., Pollarolo, G., Pullia, A., Queiser, M., Radeck, F., Recchia, F., Regan, P. H., Rosiak, D., Saed-Samii, N., Sahin, E., Scarlassara, F., Schneiders, D., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J. F., Söderström, Pär-Anders, Stefanini, A. M., Steinbach, T., Stezowski, O., Szilner, S., Szpak, B., Teng, R., Ur, C., Vandone, V., Warner, D. D., Wiens, A., Wu, C. Y., and Zell, K. O.
Abstract: The high-spin structures and isomers of the N = 81 isotones Xe-135 and Ba-137 are investigated after multinucleon-transfer (MNT) and fusion-evaporation reactions. Both nuclei are populated (i) in Xe-136+ U-238 and (ii) Xe-136+ Pb-208 MNT reactions employing the high-resolution Advanced Gamma Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA, (iii) in the Xe-136+ Pt-198 MNT reaction employing the gamma-ray array GAMMASPHERE in combination with the gas-detector array CHICO, and (iv) via a B-11+ Te-130 fusion-evaporation reaction with the HORUS gamma-ray array at the University of Cologne. The high-spin level schemes of Xe-135 and Ba-137 are considerably extended to higher energies. The 2058-keV (19/2(-)) state in Xe-135 is identified as an isomer, closing a gap in the systematics along the N = 81 isotones. Its half-life is measured to be 9.0(9) ns, corresponding to a reduced transition probability of B(E2,19/2(-) -> 15/2(-)) = 0.52(6) W.u. The experimentally deduced reduced transition probabilities of the isomeric states are compared to shell-model predictions. Latest shell-model calculations reproduce the experimental findings generally well and provide guidance to the interpretation of the new levels.
Published: 2017
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161. Lifetimes and electromagnetic transition strengths in Dy-157

Author: Gladnishki, K. A., Petkov, P., Moeller, O., Dewald, A., Jolie, J., Tonev, D., Trichkova, M., Heinze, S., von Brentano, P., Bazzacco, D., Ur, C. A., Farnea, E., Axiotis, M., Lunardi, S., de Angelis, G., Napoli, D. R., Marginean, N., Martinez, T., Caprio, M. A., Rainovski, G., Gladnishki, K. A., Petkov, P., Moeller, O., Dewald, A., Jolie, J., Tonev, D., Trichkova, M., Heinze, S., von Brentano, P., Bazzacco, D., Ur, C. A., Farnea, E., Axiotis, M., Lunardi, S., de Angelis, G., Napoli, D. R., Marginean, N., Martinez, T., Caprio, M. A., and Rainovski, G.
Abstract: Lifetimes of excited states of Dy-157 were measured by recoil distance Doppler-shift (RDDS) and Doppler-shift attenuation (DSAM) methods. The gamma-ray coincidence data were analyzed by the differential decay curve method. The level scheme and the newly deduced transition strengths were simultaneously described in the framework of the particle plus triaxial rotor model (PTRM) and the rigid-rotor model.
Published: 2017

162. Neutron effective single-particle energies above Ni-78: A hint from lifetime measurements in the N = 51 isotones Se-85 and Kr-87

Author: Didierjean, F., Verney, D., Duchene, G., Litzinger, J., Sieja, K., Dewald, A., Goasduff, A., Lozeva, R., Fransen, C., de Angelis, G., Aydin, S., Bazzacco, D., Bracco, A., Bottoni, S., Corradi, L., Crespi, F., Ellinger, E., Farnea, E., Fioretto, E., Franchoo, S., Gottardo, A., Grocutt, L., Hackstein, M., Ibrahim, F., Kolos, K., Leoni, S., Lenzi, S., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Modamio, V., Moeller, O., Montagnoli, G., Montanari, D., Morales, A. I., Napoli, D., Niikura, M., Recchia, F., Sahin, E., Scarlassara, F., Sengele, L., Szilner, S., Smith, J. F., Stefanini, A. M., Ur, C., Valiente-Dobon, J. J., Vandone, V., Didierjean, F., Verney, D., Duchene, G., Litzinger, J., Sieja, K., Dewald, A., Goasduff, A., Lozeva, R., Fransen, C., de Angelis, G., Aydin, S., Bazzacco, D., Bracco, A., Bottoni, S., Corradi, L., Crespi, F., Ellinger, E., Farnea, E., Fioretto, E., Franchoo, S., Gottardo, A., Grocutt, L., Hackstein, M., Ibrahim, F., Kolos, K., Leoni, S., Lenzi, S., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Modamio, V., Moeller, O., Montagnoli, G., Montanari, D., Morales, A. I., Napoli, D., Niikura, M., Recchia, F., Sahin, E., Scarlassara, F., Sengele, L., Szilner, S., Smith, J. F., Stefanini, A. M., Ur, C., Valiente-Dobon, J. J., and Vandone, V.
Abstract: Background: While the N = 50 shell-gap evolution towards Ni-78 is presently in the focus of nuclear structure research, experimental information on the neutron effective single-particle energy sequence above the Ni-78 core remain scarce. Direct nucleon-exchange reactions are indeed difficult with presently available post-accelerated radioactive-ion beams (especially for high orbital-momentum orbitals) in this exotic region. Purpose: In this study we probe the evolution of the vlg(7/2)effective single-particle energy which is a key to understanding the possible evolution of the spin-orbit splitting due to the proton-neutron interaction in the Ni-78 region. To achieve this goal, a method based on lifetime measurements is used for the first time. The obtained lifetimes of the 7/2(1)(-) states in Kr-87 and Se-85 are used to investigate the vlg7/2 evolution. Method: Yrast and near-yrast states in the light N = 51 isotones Se-85 and Kr-87 were populated via multinucleon transfer reactions, using a Se-82 beam and a U-238 target at the LNL tandem-ALPI facility. The prompt y rays were detected by the AGATA Demonstrator and particle identification was performed using the PRISMA spectrometer. Lifetime measurements were performed by using the Cologne plunger device for deep inelastic reactions and the Recoil Distance Doppler Shift technique. Results: We obtain (tau(7/21+)) = 0.4(-0.4)(+1.6) ps for Kr-87. In the case of Se-85 an upper limit of 3(2) ps is obtained for the (tau(7/21+)) value. Conclusion: For Kr-87, the measured (7/2(1)(+)) lifetime is consistent with a core-coupled 2(+) circle times v2d(5/2) configuration for this state. This result is consistent with that obtained by direct reaction, which validates our method. For Se-85, the measured (7/2(1)(+)) lifetime limit indicates a very small contribution of the vlg(7/2) configuration to the wave function of this state.
Published: 2017

163. Isomers and high-spin structures in the N=81 isotones 135Xe and 137Ba

Author: Vogt, A., Birkenbach, B., Reiter, P., Blazhev, A., Siciliano, M., Hadynska-Klek, K., Valiente-Dobon, J. J., Wheldon, C., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Chakrawarthy, R. S., Chapman, R., Cline, D., Farnea, E., Lunardi, S., Macchiavelli, A. O., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Montagnoli, G., Montanari, D., Pellegri, L., Podolyak, Zs., Pollarolo, G., Pullia, A., Queiser, M., Radeck, F., Recchia, F., Regan, P. H., Rosiak, D., Saed-Samii, N., Sahin, E., Scarlassara, F., Schneiders, D., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J. F., Soderstrom, P. -A., Stefanini, A. M., Steinbach, T., Stezowski, O., Szilner, S., Vogt, A., Birkenbach, B., Reiter, P., Blazhev, A., Siciliano, M., Hadynska-Klek, K., Valiente-Dobon, J. J., Wheldon, C., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Chakrawarthy, R. S., Chapman, R., Cline, D., Farnea, E., Lunardi, S., Macchiavelli, A. O., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Montagnoli, G., Montanari, D., Pellegri, L., Podolyak, Zs., Pollarolo, G., Pullia, A., Queiser, M., Radeck, F., Recchia, F., Regan, P. H., Rosiak, D., Saed-Samii, N., Sahin, E., Scarlassara, F., Schneiders, D., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J. F., Soderstrom, P. -A., Stefanini, A. M., Steinbach, T., Stezowski, O., and Szilner, S.
Published: 2017

164. High-spin structures in 132Xe and 133Xe and evidence for isomers along the N=79 isotones

Author: Vogt, A., Siciliano, M., Birkenbach, B., Reiter, P., Hadynska-Klek, K., Wheldon, C., Valiente-Dobon, J. J., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Blazhev, A., Bracco, A., Bruyneel, B., Chakrawarthy, R. S., Chapman, R., Cline, D., Corradi, L., Cromaz, M., de Angelis, G., Eberth, J., Fallon, P., Farnea, E., Fioretto, E., Fransen, C., Fu, B., Gelletly, W., Giaz, A., Gorgen, A., Gottardo, A., Hess, H., Hirsch, R., Hua, H., John, P. R., Jolie, J., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Montagnoli, G., Montanari, D., Napoli, D., Podolyak, Zs., Pullia, A., Queiser, M., Recchia, F., Regan, P. H., Regis, J. -M., Saed-Samii, N., Sahin, E., Scarlassara, F., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J. F., Soderstrom, P. -A., Stefanini, A. M., Stezowski, O., Szilner, S., Szpak, B., Teng, R., Ur, C., Warner, D. D., Wolf, K., Wu, C. Y., Zell, K. O., Vogt, A., Siciliano, M., Birkenbach, B., Reiter, P., Hadynska-Klek, K., Wheldon, C., Valiente-Dobon, J. J., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Blazhev, A., Bracco, A., Bruyneel, B., Chakrawarthy, R. S., Chapman, R., Cline, D., Corradi, L., Cromaz, M., de Angelis, G., Eberth, J., Fallon, P., Farnea, E., Fioretto, E., Fransen, C., Fu, B., Gelletly, W., Giaz, A., Gorgen, A., Gottardo, A., Hess, H., Hirsch, R., Hua, H., John, P. R., Jolie, J., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Montagnoli, G., Montanari, D., Napoli, D., Podolyak, Zs., Pullia, A., Queiser, M., Recchia, F., Regan, P. H., Regis, J. -M., Saed-Samii, N., Sahin, E., Scarlassara, F., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J. F., Soderstrom, P. -A., Stefanini, A. M., Stezowski, O., Szilner, S., Szpak, B., Teng, R., Ur, C., Warner, D. D., Wolf, K., Wu, C. Y., and Zell, K. O.
Published: 2017

165. Structure of the odd-odd-nucleus 84Nb

Author: Mărginean, N., Bucurescu, D., Ur, C.A., Bazzacco, D., Lenzi, S.M., Lunardi, S., Rossi Alvarez, C., Ionescu-Bujur, M., Iordăchescu, A., de Angelis, G., De Poli, M., Farnea, E., Gadea, A., Napoli, D.R., Spolaore, P., and Buscemi, A.
Published: 1999
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166. Lifetime measurements in Pd-102: Searching for empirical proof of the E(5) critical-point symmetry in nuclear structure

Author: Konstantinopoulos, T., Ashley, S. F., Axiotis, M., Spyrou, A., Harissopulos, S., Dewald, A., Litzinger, J., Möller, O., Müller Gatterman, C., Petkov, P., Napoli, D. R., Marginean, N., De Angelis, G., C. A., Ur, Bazzacco, D., Farnea, E., Lenzi, SILVIA MONICA, Vlastou, R., Balabanski, D., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM SNO), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Univ. Paris-Sud, Institute of Nuclear and Particle Physics, NCRS Demokritos, and National Centre for Scientific Research 'Demokritos'
Subjects: [PHYS]Physics [physics], Nuclear and High Energy Physics, STATES, DECAY CURVE METHOD, EVEN-EVEN NUCLEI, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], LIMIT
Abstract: International audience; Lifetimes of yrast and nonyrast states of Pd-102 populated via the Zr-92(C-13, 3n) reaction are measured by means of the recoil distance Doppler-shift technique with a Cologne plunger coupled to a GASP spectrometer. The event-by-event data accumulated at 24 plunger distances in the range of 0.1 mu m to 9 mm are analyzed using the differential decay curve method. The resulting B(E2) values of the gamma transitions depopulating yrast-band members up to the I-pi = 8(+) state are found to deviate significantly from the corresponding predictions of the E(5) critical-point symmetry.
Published: 2016

167. Pygmy dipole resonance in ^140Ce via inelastic scattering of ^17O

Author: Krzysiek, M., Kmiecik, M., Maj, A., Bednarczyk, P., Bracco, A., Crespi, F. C. L., Lanza, E. G., Litvinova, E., Paar, Nils, Avigo, R., Bazzacco, D., Benzoni, G., Birkenbach, B., Blasi, N., Bottoni, S., Brambilla, S., Camera, F., Ceruti, S., Ciemala, M., de Angelis, G., Désesquelles, P., Eberth, J., Farnea, E., Gadea, A., Giaz, A., Gorgen, A., Gottardo, A., Grebosz, J., Hess, H., Isocarte, R., Jungclaus, A., Leoni, S., Ljungvall, J., Lunardi, S., Mazurek, K., Menegazzo, R., Mengoni, D., Michelagnoli, C., Milion, B., Morales, A. I., Napoli, D. R., Nicolini, R., Pellegri, L., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Salsac, M. D., Siebeck, B., Siem, S., Soderstrom, P.-A., Ur, C., Valiente-Dobon, J. J., Wieland, O., and Zieblinski, M.
Subjects: PRIRODNE ZNANOSTI. Fizika, pygmy resonance, NATURAL SCIENCES. Physics
Abstract: The γ decay from the high-lying states of ^140Ce excited via inelastic scattering of ^17O at a bombarding energy of 340 MeV was measured using the high-resolution AGATA-demonstrator array in coincidence with scattered ions detected in two segmented Δ E-E silicon detectors. Angular distributions of scattered ions and emitted γ rays were measured, as well as their differential cross sections. The excitation of 1^− states below the neutron separation energy is similar to the one obtained in reactions with the α isoscalar probe. The comparison between the experimental differential cross sections and the corresponding predictions using the distorted-wave Born approximation allowed us to extract the isoscalar component of identified 1^− pygmy states. For this analysis the form factor obtained by folding microscopically calculated transition densities and optical potentials was used.
Published: 2016

168. First in-beam gamma-ray study of the level structure of neutron-rich 39S

Author: Chapman, R., Wang, Z. M., Bouhelal, M., Haas, F., Liang, X., 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., 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 structure, transfer reaction, particle-core coupling
Abstract: The neutron-rich S39 nucleus has been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of S36 ions with a thin Pb208 target. The magnetic spectrometer, PRISMA, and the γ-ray array, CLARA, were used in the measurements. Gamma-ray transitions of the following energies were observed: 339, 398, 466, 705, 1517, 1656, and 1724 keV. Five of the observed transitions have been tentatively assigned to the decay of excited states with spins up to (11/2−). The results of a state-of-the-art shell-model calculation of the level scheme of S39 using the SDPF-U effective interaction are also presented. The systematic behavior of the excitation energy of the first 11/2− states in the odd-A isotopes of sulfur and argon is discussed in relation to the excitation energy of the first excited 2+ states of the adjacent even-A isotopes. The states of S39 that have the components in their wave functions corresponding to three neutrons in the 1f7/2 orbital outside the N=20 core have also been discussed within the context of the 0 ℏω shell-model calculations presented here.
Published: 2016

169. First in-beam γ -ray study of the level structure of neutron-rich 39S

Author: Chapman, R., Wang, M., Bouhelal, M., Haas, F., Liang, X., Azaiez, F., Behera, B. R., Burns, M., Caurier, E., Corradi, L., Curien, D., Deacon, A., Dombrádi, Zs., Farnea, E., Fioretto, E., Gadea, A., Hodsdon, A., Ibrahim, F., Jungclaus, A., Keyes, K., Kumar, V., Lunardi, S., Mărginean, N., Montagnoli, G., Napoli, D., Nowacki, F., Ollier, J., O'Donnell, D., Papenberg, A., Pollarolo, G., Salsac, D., Scarlassara, F., Smith, J. F., Spohr, M., Stanoiu, M., Stefanini, 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]
Abstract: International audience; The neutron-rich S39 nucleus has been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of S36 ions with a thin Pb208 target. The magnetic spectrometer, PRISMA, and the γ-ray array, CLARA, were used in the measurements. Gamma-ray transitions of the following energies were observed: 339, 398, 466, 705, 1517, 1656, and 1724 keV. Five of the observed transitions have been tentatively assigned to the decay of excited states with spins up to (11/2−). The results of a state-of-the-art shell-model calculation of the level scheme of S39 using the SDPF-U effective interaction are also presented. The systematic behavior of the excitation energy of the first 11/2− states in the odd-A isotopes of sulfur and argon is discussed in relation to the excitation energy of the first excited 2+ states of the adjacent even-A isotopes. The states of S39 that have the components in their wave functions corresponding to three neutrons in the 1f7/2 orbital outside the N=20 core have also been discussed within the context of the 0 ℏω shell-model calculations presented here.
Published: 2016

170. High-spin structure of 134Xe

Author: Vogt, A., Birkenbach, B., Reiter, P., Blazhev, A., Siciliano, M., Valiente-Dobón, J.J., Wheldon, C., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Chakrawarthy, R.S., Chapman, R., Cline, D., Corradi, L., Crespi, F.C.L., Cromaz, M., de Angelis, G., Eberth, J., Fallon, P., Farnea, E., Fioretto, E., Freeman, S.J., Gadea, A., Geibel, K., Gelletly, W., Gengelbach, A., Giaz, A., Görgen, A., Gottardo, A., Hayes, A.B., Hess, H., Hua, H., John, P.R., Jolie, J., Jungclaus, A., Korten, W., Lee, I.Y., Leoni, S., Liang, X., Lunardi, S., Macchiavelli, A.O., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, Tea, Montagnoli, G., Montanari, D., Napoli, D., Pearson, C.J., Pellegri, L., Podolyak, Zs., Pollarolo, G., Pullia, A., Radeck, F., Recchia, F., Regan, P.H., Sahin, E., Scarlassara, F., Sletten, G., Smith, J.F., Söderström, P.-A., Stefanini, A.M., Steinbach, T., Stezowski, O., Szilner, Suzana, Szpak, B., Teng, R., Ur, C., Vandone, V., Ward, D., Warner, D.D., Wiens, A., and Wu, C.Y.
Subjects: gamma-spectroscopy, the neutron-rich Xe, AGATA and CLARA spectrometers, Nuclear Experiment
Abstract: Detailed spectroscopic information in the N~82 region is necessary to benchmark shell-model calculations in the region. The nuclear structure above long-lived isomers in 134Xe is investigated after multinucleon transfer (MNT) and actinide fission. 134Xe was populated as (i) a transfer product in 136Xe+238U, and 136Xe+208Pb MNT reactions and (ii) as a fission product in the 136Xe+238U reaction employing the high-resolution Advanced Gamma Tracking Array (AGATA). Trajectory reconstruction has been applied for the complete identification of beamlike transfer products with the magnetic spectrometer PRISMA. The 136Xe+198Pt MNT reaction was studied with the gamma-ray spectrometer GAMMASPHERE in combination with the gas detector array Chico. Several highspin states in 134Xe on top of the two long-lived isomers are discovered based on gamma-gamma coincidence relationships and information on the gamma-ray angular distributions as well as excitation energies from the total kinetic energy loss and fission fragments. The revised level scheme of 134Xe is extended up to an excitation energy of 5.832 MeV with tentative spin-parity assignments up to 16+. Previous assignments of states above the 7- isomer are revised. Latest shell model calculations employing two different effective interactions reproduce the experimental findings quite well and support the new spin and parity assignments.
Published: 2016

171. Pygmy dipole resonance in Ce 140 via inelastic scattering of O 17

Author: Krzysiek, M., Kmiecik, M., Maj, A., Bednarczyk, P., Bracco, A., Crespi, F. C. L., Lanza, E. G., Litvinova, E., Paar, N., Avigo, R., Bazzacco, D., Benzoni, G., Birkenbach, B., Blasi, N., Bottoni, S., Brambilla, S., Camera, F., Ceruti, S., Ciemała, M., De Angelis, G., Désesquelles, P., Eberth, J., Farnea, E., Gadea, A., Giaz, A., Görgen, A., Gottardo, A., Grȩbosz, J., Hess, H., Isocarte, R., Jungclaus, A., Leoni, S., Ljungvall, J., Lunardi, S., Mazurek, K., Menegazzo, R., Mengoni, D., Michelagnoli, C., Milion, B., Morales, A. I., Napoli, D. R., Nicolini, R., Pellegri, L., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Salsac, M. D., Siebeck, B., Siem, S., Söderström, P. -A., Ur, C., Valiente-Dobon, J. J., Wieland, O., and Ziȩbliński, M.
Subjects: Nuclear and High Energy Physics
Published: 2016

172. First measurement of beta decay half-lives in neutron-rich Tl and Bi isotopes

Author: Benzoni, G, Morales, AI, Bracco, A, Camera, F, Crespi, FCL, Corsi, AM, Leoni, S, Million, B, Nicolini, R, Wieland, O, Valiente-Dobón, JJ, Gottardo, A, de Angelis, G, Napoli, DR, Sahin, E, Lunardi, S, Gadea, A, Algora, A, Bazzacco, D, Farnea, E, Menegazzo, R, Mengoni, D, Recchia, F, Ur, CA, Boutachkov, P, Górska, M, Pietri, S, Weick, H, Cortes, ML, Domingo-Pardo, C, Engert, T, Farinon, F, Geissel, H, Gerl, J, Goel, N, Gregor, E, Habermann, T, Hoischen, R, Kojouharov, I, Kurz, N, Naqvi, F, Nociforo, C, Prochazka, A, Prokopowicz, W, Schaffner, H, Sharma, A, Wollersheim, H-J, Bruce, AM, Denis Bacelar, AM, Grebosz, J, Podolyak, Z, Regan, PH, Al-Dahan, N, Bowry, M, Bunce, M, Deo, AY, Farrelly, GF, Reed, MW, Swan, TPD, Walker, PM, Pfützner, M, Alcántara Núñez, J, Ayyad, Y, Benlliure, J, Alkhomashi, N, Allegro, PRP, Ribas, RV, Casarejos, E, Doncel, M, Dombradi, Z, Eppinger, K, Klupp, S, Steiger, K, Rudolph, D, Janik, R, Sitar, B, Strmen, P, Szarka, I, Mandal, S, and Siwal, D
Subjects: FÍSICA NUCLEAR (INSTRUMENTAÇÃO), Nuclear physics, Physics, Nuclear and High Energy Physics, Computer simulation, chemistry, Isotope, Subatomic Physics, chemistry.chemical_element, Neutron, Uranium, Beta decay
Abstract: Neutron-rich isotopes around lead, beyond N = 126, have been studied exploiting the fragmentation of an uranium primary beam at the FRS-RISING setup at GSI. For the first time beta-decay half-lives of Bi-219 and Tl-211,Tl-212,Tl-213 isotopes have been derived. The half-lives have been extracted using a numerical simulation developed for experiments in high-background conditions. Comparison with state of the art models used in r-process calculations is given, showing a systematic underestimation of the experimental values, at variance from close-lying nuclei. (c) 2012 Elsevier B.V. All rights reserved.
Published: 2012

173. Transition probabilities in neutron-rich $^{84,86}$Se

Author: Litzinger, J., Blazhev, A., Dewald, A., Didierjean, F., Duchêne, G., Fransen, C., Lozeva, Radomira, Sieja, K., Verney, D., De Angelis, G., Bazzacco, D., Birkenbach, B., Bottoni, S., Bracco, A., Braunroth, T., Cederwall, B., Corradi, L., Crespi, F. C. L., Désesquelles, P., Eberth, J., Ellinger, E., Farnea, E., Fioretto, E., Gernhäuser, R., Goasduff, A., Görgen, A., Gottardo, A., Grebosz, J., Hackstein, M., Hess, H., Ibrahim, F., Jolie, J., Jungclaus, A., Kolos, K., Korten, W., Leoni, S., Lunardi, S., Maj, A., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Million, B., Möller, O., Modamio, V., Montagnoli, G., Montanari, D., Morales, A. I., Napoli, D. R., Niikura, M., Pollarolo, G., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Sahin, E., Salsac, M. D., Scarlassara, F., Söderström, P.-A., Stefanini, A. M., Stezowski, O., Szilner, S., Theisen, Ch., Valiente Dobón, J. J., Vandone, V., Vogt, A., 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), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM SNO), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Univ. Paris-Sud, 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, 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), 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), 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: 23.20.−g, 21.10.Tg, 21.60.Cs, 27.50.+e, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2015

174. Fragmentation of the two-phonon γ-vibration in166Er

Author: Fahlander, C., de Angelis, G., Bazzacco, D., Beghini, S., Brandolini, F., Cline, D., Corradi, L., De Poli, M., Farnea, E., Gadea, A., Härtlein, T., Lunardi, S., Montagnoli, G., Napoli, D. R., Petrache, C. M., Podolyák, Z., Rossi Alvarez, C., Scarlassara, F., Stefanini, A. M., and Wu, C. Y.
Published: 1998
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175. Shears band in the 105Sn nucleus

Author: Gadea, A., de Angelis, G., Fahlander, C., De Poli, M., Farnea, E., Li, Y., Napoli, D.R., Pan, Q., Spolaore, P., Bazzacco, D., Lenzi, S.M., Lunardi, S., Petrache, C.M., Brandolini, F., Pavan, P., Rossi Alvarez, C., Sferrazza, M., Bizzeti, P.G., Bizzeti Sona, A.M., Nyberg, J., Lipoglavsek, M., Persson, J., Cederkäll, J., Seweryniak, D., Johnson, A., Grawe, H., Soramel, F., Ogawa, M., Makishima, A., Schubart, R., and Frauendorf, S.
Published: 1997
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176. Neutron effective single-particle energies above Ni78 : A hint from lifetime measurements in the N=51 isotones Se85 and Kr87

Author: Didierjean, F., primary, Verney, D., additional, Duchêne, G., additional, Litzinger, J., additional, Sieja, K., additional, Dewald, A., additional, Goasduff, A., additional, Lozeva, R., additional, Fransen, C., additional, de Angelis, G., additional, Aydin, S., additional, Bazzacco, D., additional, Bracco, A., additional, Bottoni, S., additional, Corradi, L., additional, Crespi, F., additional, Ellinger, E., additional, Farnea, E., additional, Fioretto, E., additional, Franchoo, S., additional, Gottardo, A., additional, Grocutt, L., additional, Hackstein, M., additional, Ibrahim, F., additional, Kolos, K., additional, Leoni, S., additional, Lenzi, S., additional, Lunardi, S., additional, Menegazzo, R., additional, Mengoni, D., additional, Michelagnoli, C., additional, Mijatovic, T., additional, Modamio, V., additional, Möller, O., additional, Montagnoli, G., additional, Montanari, D., additional, Morales, A. I., additional, Napoli, D., additional, Niikura, M., additional, Recchia, F., additional, Sahin, E., additional, Scarlassara, F., additional, Sengele, L., additional, Szilner, S., additional, Smith, J. F., additional, Stefanini, A. M., additional, Ur, C., additional, Valiente-Dobón, J. J., additional, and Vandone, V., additional
Published: 2017
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177. Lifetimes and electromagnetic transition strengths in Dy157

Author: Gladnishki, K. A., primary, Petkov, P., additional, Möller, O., additional, Dewald, A., additional, Jolie, J., additional, Tonev, D., additional, Trichkova, M., additional, Heinze, S., additional, von Brentano, P., additional, Bazzacco, D., additional, Ur, C. A., additional, Farnea, E., additional, Axiotis, M., additional, Lunardi, S., additional, de Angelis, G., additional, Napoli, D. R., additional, Marginean, N., additional, Martinez, T., additional, Caprio, M. A., additional, and Rainovski, G., additional
Published: 2017
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178. High-spin states and lifetimes in S33 and shell-model interpretation in the sd−fp space

Author: Aydin, S., primary, Ionescu-Bujor, M., additional, Gavrilov, G. Tz., additional, Dimitrov, B. I., additional, Lenzi, S. M., additional, Recchia, F., additional, Tonev, D., additional, Bouhelal, M., additional, Kavillioglu, F., additional, Pavlov, P., additional, Bazzacco, D., additional, Bizzeti, P. G., additional, Bizzeti-Sona, A. M., additional, de Angelis, G., additional, Deloncle, I., additional, Farnea, E., additional, Gadea, A., additional, Gottardo, A., additional, Goutev, N., additional, Haas, F., additional, Huyuk, T., additional, Laftchiev, H., additional, Lunardi, S., additional, Marinov, Tz. K., additional, Mengoni, D., additional, Menegazzo, R., additional, Michelagnoli, C., additional, Napoli, D. R., additional, Petkov, P., additional, Sahin, E., additional, Singh, P. P., additional, Stefanova, E. A., additional, Ur, C. A., additional, Valiente-Dobón, J. J., additional, and Yavahchova, M. S., additional
Published: 2017
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179. In-beam γ -ray spectroscopy of the neutron-rich platinum isotope Pt200 toward the N=126 shell gap

Author: John, P. R., primary, Valiente-Dobón, J. J., additional, Mengoni, D., additional, Modamio, V., additional, Lunardi, S., additional, Bazzacco, D., additional, Gadea, A., additional, Wheldon, C., additional, Rodríguez, T. R., additional, Alexander, T., additional, de Angelis, G., additional, Ashwood, N., additional, Barr, M., additional, Benzoni, G., additional, Birkenbach, B., additional, Bizzeti, P. G., additional, Bizzeti-Sona, A. M., additional, Bottoni, S., additional, Bowry, M., additional, Bracco, A., additional, Browne, F., additional, Bunce, M., additional, Camera, F., additional, Corradi, L., additional, Crespi, F. C. L., additional, Melon, B., additional, Farnea, E., additional, Fioretto, E., additional, Gottardo, A., additional, Grente, L., additional, Hess, H., additional, Kokalova, Tz., additional, Korten, W., additional, Kuşoğlu, A., additional, Lenzi, S., additional, Leoni, S., additional, Ljungvall, J., additional, Menegazzo, R., additional, Michelagnoli, C., additional, Mijatović, T., additional, Montagnoli, G., additional, Montanari, D., additional, Napoli, D. R., additional, Podolyák, Zs., additional, Pollarolo, G., additional, Recchia, F., additional, Reiter, P., additional, Roberts, O. J., additional, Şahin, E., additional, Salsac, M.-D., additional, Scarlassara, F., additional, Sferrazza, M., additional, Söderström, P.-A., additional, Stefanini, A. M., additional, Szilner, S., additional, Ur, C. A., additional, Vogt, A., additional, and Walshe, J., additional
Published: 2017
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180. Experimental study of the isovector giant dipole resonance in Zr80 and Rb81

Author: Ceruti, S., primary, Camera, F., additional, Bracco, A., additional, Mentana, A., additional, Avigo, R., additional, Benzoni, G., additional, Blasi, N., additional, Bocchi, G., additional, Bottoni, S., additional, Brambilla, S., additional, Crespi, F. C. L., additional, Giaz, A., additional, Leoni, S., additional, Million, B., additional, Morales, A. I., additional, Nicolini, R., additional, Pellegri, L., additional, Riboldi, S., additional, Wieland, O., additional, Bazzacco, D., additional, Ciemala, M., additional, Farnea, E., additional, Gottardo, A., additional, Kmiecik, M., additional, Maj, A., additional, Mengoni, D., additional, Michelagnoli, C., additional, Modamio, V., additional, Montanari, D., additional, Napoli, D., additional, Recchia, F., additional, Sahin, E., additional, Ur, C., additional, Valiente-Dobón, J. J., additional, Wasilewska, B., additional, and Zieblinski, M., additional
Published: 2017
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181. Population of the 2(ms)(+) mixed-symmetry state of Ba-140 with the alpha-transfer reaction

Author: Stahl, C., Leske, J., Bauer, C., Bazzacco, D., Farnea, E., Gottardo, A., John, P. R., Michelagnoli, C., Pietralla, N., Reese, M., Sahin, E., Birkenbach, B., Bracco, A., Crespi, F. C. L., Angelis, G., Desesquelles, P., Eberth, J., Gadea, A., Goergen, A., Grebosz, J., Hess, H., Jolie, J., Jungclaus, A., Wolfram KORTEN, Lenzi, S. M., Lunardi, S., Menegazzo, R., Mengoni, D., Modamio, V., Napoli, D. R., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Salsac, M. D., Soderstrom, P. A., Stezowski, O., Theisen, Ch, Ur, C. A., Valiente-Dobon, J. J., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM SNO), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Univ. Paris-Sud, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut 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 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: CE-142, [PHYS]Physics [physics], NUCLEI, Atom and Molecular Physics and Optics, INELASTIC NEUTRON-SCATTERING, ND-144, Atom- och molekylfysik och optik, INTERACTING-BOSON MODEL, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], PROTON, STRUCTURAL CHARACTERISTICS
Abstract: International audience; Background: Identification of proton-neutron mixed-symmetric one-quadrupole phonon excitations (the 2(ms)(+) states) of atomic nuclei provides information on the isovector part of the residual nucleon-nucleon interaction. It was predicted that the 2(ms)(+) state of particular nuclei close to the U(5) limit of the interacting boson model, in particular Ba-140, should be considerably populated by alpha-transfer reactions [C. E. Alonso et al., Phys. Rev. C 78, 017301 (2008)].Purpose: We aim at the identification of the 2(ms)(+) mixed-symmetry state (MSS) of radioactive Ba-140 and investigate its population by the alpha-transfer reaction as a suitable tool to selectively populate MSSs and as a potential new signature for its mixed-symmetric character.Method: A gamma-ray spectroscopy experiment was performed in inverse kinematics in order to populate the 2(ms)(+) state of Ba-140 by alpha-transfer from a C-nat target on Xe-136 beam ions. The population of the candidate for the 2(ms)(+) state of Ba-140 was measured relative to the population of the 2(1)(+) state.Results: The candidate for the 2(ms)(+) state of Ba-140 was populated by a transfer three times weaker than predicted. Another 2(+) state that can be ruled out as the MSS was in turn as strongly populated by the a transfer as predicted for the MSS.Conclusions: The relative population of 2(+) states by alpha-transfer cannot serve as a new signature for MSSs, since other 2(+) states are also strongly populated. Nevertheless, the substantial population of the MSS candidate of Ba-140 by alpha transfer qualifies this type of reaction as suitable tool to excite MSSs and study their electromagnetic decay properties.
Published: 2015

182. Spectroscopy of neutron-rich P34,35,36,37,38 populated in binary grazing reactions

Author: Chapman, R., Hodsdon, A., Bouhelal, M., Haas, F., Liang, X., Azaiez, F., Wang, Z. M., Behera, B. R., Burns, M., Caurier, E., Corradi, L., Curien, D., Deacon, A. N., Dombrádi, Zs., Farnea, E., Fioretto, E., Gadea, A., Ibrahim, F., Jungclaus, A., Keyes, K., Kumar, V., Lunardi, S., Mărginean, 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, S., Trotta, M., Verney, D., 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), 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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: Nuclear and High Energy Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: International audience; The neutron-rich nuclei P34,35,36,37,38 were populated in binary grazing reactions initiated by a beam of S36 ions at 215 MeV incident on a thin Pb208 target. The combination of the PRISMA magnetic spectrometer and the CLARA array of escape-suppressed Ge detectors was used to detect γ rays in coincidence with projectile-like nuclear species. Further evidence to support the observed γ decay of excited states of the populated phosphorus isotopes is provided by γ−γ coincidence measurements based on the results of an earlier thick-target deep-inelastic experiment. Level schemes for P34,35,36,37,38 are presented and discussed within the context of state-of-the-art shell-model calculations. In particular, new spin and parity assignments are proposed for a number of excited states of P36. The evolution with neutron number of the energy difference of the low-lying Jπ=3/2+ and 1/2+ states in the odd-A isotopes of phosphorus, as well as the relationship to nuclear collectivity, is discussed. The evolution with neutron number of the shell-model wave functions of the first Jπ=1/2+, 3/2+, and 5/2+ states of the odd-A phosphorus isotopes and of the first Jπ=3−, 4−, and 5− states of the even-A isotopes is also explored.
Published: 2015

183. Isospin Mixing in ^{80}Zr: From Finite to Zero Temperature

Author: Ceruti, S., Camera, F., Bracco, A., Avigo, R., Benzoni, G., Blasi, N., Bocchi, G., Bottoni, S., Brambilla, S., Crespi, F. C. L., Giaz, A., Leoni, S., Mentana, A., Million, B., Morales, A. I., Nicolini, R., Pellegri, L., Pullia, A., Riboldi, S., Wieland, O., Birkenbach, B., Bazzacco, D., Ciemala, M., Désesquelles, P., Eberth, J., Farnea, E., Görgen, A., Gottardo, A., Hess, H., Judson, D. S., Jungclaus, A., Kmiecik, M., Korten, W., Maj, A., Menegazzo, R., Mengoni, D., Michelagnoli, C., Modamio, V., Montanari, D., Myalski, S., Napoli, D., Quintana, B., Reiter, P., Recchia, F., Rosso, D., Sahin, E., Salsac, M. D., Söderström, P. -A., Stezowski, O., Theisen, Ch., Ur, C., Valiente-Dobón, J. J., Zieblinski, M., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM SNO), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Univ. Paris-Sud, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut 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 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: [PHYS]Physics [physics], Physics and Astronomy (all), GIANT-DIPOLE RESONANCE, STATES, NUCLEI, SYMMETRY, Nuclear Theory, WIDTH, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, DECAY, BREAKING, RESTORATION
Abstract: International audience; The isospin mixing was deduced in the compound nucleus Zr-80 at an excitation energy of E* = 54 MeV from the gamma decay of the giant dipole resonance. The reaction Ca-40 + Ca-40 at E-beam = 136 MeV was used to form the compound nucleus in the isospin I = 0 channel, while the reaction Cl-37 + Ca-44 at E-beam = 95 MeV was used as the reference reaction. The. rays were detected with the AGATA demonstrator array coupled with LaBr3:Ce detectors. The temperature dependence of the isospin mixing was obtained and the zero-temperature value deduced. The isospin-symmetry-breaking correction delta(C) used for the Fermi superallowed transitions was extracted and found to be consistent with beta-decay data.
Published: 2015

184. 1(-) and 2(+) discrete states in Zr-90 populated via the (O-17, O-17 'gamma) reaction

Author: Crespi, F.C.L., Bracco, A., Nicolini, R., Lanza, E.G., Vitturi, A., Mengoni, D., Leoni, S., Benzoni, G., Blasi, N., Boiano, C., Bottoni, S., Brambilla, S., Camera, F., Corsi, A., Giaz, A., Million, B., Pellegri, L., Vandone, V., Wieland, O., Bednarczyk, P., Ciemala, M., Kmiecik, M., Krzysiek, M., Maj, A., Bazzacco, D., Bellato, M., Birkenbach, B., Bortolato, D., Calore, E., Cederwall, B., De Angelis, G., Desesquelles, P., Eberth, J., Farnea, E., Gadea, A., Gorgen, A., Gottardo, A., Hess, H., Isocrate, R., Jolie, J., Jungclaus, A., Kempley, R.S., Labiche, M., Menegazzo, R., Michelagnoli, C., Molini, P., Napoli, D.R., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Sahin, E., Siem, S., Soderstrom, P.A., Stezowski, O., Theisen, C., Ur, C., Valiente-Dobon, J.J., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), 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 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: PYGMY DIPOLE RESONANCE, [PHYS]Physics [physics], EXCITATION, SCATTERING, ARRAY, GIANT-RESONANCES, PB-208, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], PHOTON DECAY
Abstract: International audience; 2(+) and 1(-) states in Zr-90 were populated via the (O-17, O-17 'gamma) reaction at 340 MeV. The gamma decay was measured with high resolution using the AGATA (advanced gamma tracking array demonstrator array). Differential cross sections were obtained at few different angles for the scattered particle. The results of the elastic scattering and inelastic excitation of 2(+), 3(,)(-) and 1(-) states are compared with distorted-wave Born approximation (DWBA) calculations, using both the standard collective form factor and a form factor obtained by folding microscopically calculated transition densities. This allowed to extract the isoscalar component of the 1(-) state at 6.424 MeV. The comparison of the present (17O, 17O 'gamma) data with existing (gamma,gamma') and (p, p') data in the corresponding region of the gamma continuum (6-11 MeV), characterized by a large E1 component, shows completely different behaviors of the cross section as a function of the nuclear excitation energy. The comparison of the data with DWBA calculations suggests a decrease of the isoscalar strength in the cross section with increasing excitation energy.
Published: 2015

185. Spectroscopy of the neutron-rich actinide nucleus U 240 following multinucleon-transfer reactions

Author: Birkenbach, B., Vogt, A., Geibel, K., Recchia, Francesco, Reiter, P., Valiente Dobón, J. J., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Corradi, L., Crespi, F. C. L., De Angelis, G., Désesquelles, P., Eberth, J., Farnea, E., Fioretto, E., Gadea, A., Gengelbach, A., Giaz, Agnese, Görgen, A., Gottardo, A., Grebosz, J., Hess, H., John, P. R., Jolie, J., Judson, D. S., Jungclaus, A., Korten, W., Lenzi, SILVIA MONICA, Leoni, S., Lunardi, Santo, Menegazzo, R., Mengoni, Daniele, Michelagnoli, C., Mijatović, T., Montagnoli, Giovanna, Montanari, D., Napoli, D., Pellegri, L., Pollarolo, G., Pullia, A., Quintana, B., Radeck, F., Rosso, D., Şahin, E., Salsac, M. D., Scarlassara, F., Söderström, P. A., Stefanini, A. M., Steinbach, T., Stezowski, O., Szilner, S., Szpak, B., Theisen, C., Ur, C., Vandone, V., and Wiens, A.
Subjects: Nuclear and High Energy Physics
Published: 2015

186. Light and heavy transfer products in Xe136+U238 multinucleon transfer reactions

Author: Vogt, A., Birkenbach, B., Reiter, P., Corradi, L., Mijatovic, T., Montanari, D., Szilner, S., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Crespi, F. C. L., Angelis, G., Desesquelles, P., Eberth, J., Farnea, E., Fioretto, E., Gadea, A., Geibel, K., Gengelbach, A., Giaz, A., Gorgen, A., Gottardo, A., Grebosz, J., Hess, H., John, P. R., Jolie, J., Judson, D. S., Jungclaus, A., Wolfram KORTEN, Leoni, S., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Montagnoli, G., Napoli, D., Pellegri, L., Pollarolo, G., Pullia, A., Quintana, B., Radeck, F., Recchia, F., Rosso, D., Sahin, E., Salsac, M. D., Scarlassara, F., Soderstrom, P. A., Stefanini, A. M., Steinbach, T., Stezowski, O., Szpak, B., Theisen, Ch, Ur, C., Valiente-Dobon, J. J., Vandone, V., Wiens, A., 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, 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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre 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), 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), 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), and Université de Lyon-Université de Lyon
Subjects: [PHYS]Physics [physics], COLLISIONS, CM-248, NUCLEI, Nuclear Theory, U-238, GAMMA-RAY TRACKING, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], MAGNETIC SPECTROMETER PRISMA, Physical Sciences, ACTINIDE PRODUCTION, Fysik, SCATTERING, AGATA, Nuclear Experiment, DETECTOR
Abstract: International audience; Background: Multinucleon transfer reactions (MNT) are a competitive tool to populate exotic neutron-rich nuclei in a wide region of nuclei, where other production methods have severe limitations or cannot be used at all.Purpose: Experimental information on the yields of MNT reactions in comparison with theoretical calculations are necessary to make predictions for the production of neutron-rich heavy nuclei. It is crucial to determine the fraction of MNT reaction products which are surviving neutron emission or fission at the high excitation energy after the nucleon exchange.Method: Multinucleon transfer reactions in Xe-136 + U-238 have been measured in a high-resolution gamma-ray/particle coincidence experiment. The large solid-angle magnetic spectrometer PRISMA coupled to the high-resolution Advanced Gamma Tracking Array (AGATA) has been employed. Beamlike reaction products after multinucleon transfer in the Xe region were identified and selected with the PRISMA spectrometer. Coincident particles were tagged by multichannel plate detectors placed at the grazing angle of the targetlike recoils inside the scattering chamber.Results: Mass yields have been extracted and compared with calculations based on the GRAZING model for MNT reactions. Kinematic coincidences between the binary reaction products, i.e., beamlike and targetlike nuclei, were exploited to obtain population yields for nuclei in the actinide region and compared to x-ray yields measured by AGATA.Conclusions: No sizable yield of actinide nuclei beyond Z = 93 is found to perform nuclear structure investigations. In-beam gamma-ray spectroscopy is feasible for few-neutron transfer channels in U and the -2p channel populating Th isotopes.
Published: 2015

187. Light and heavy transfer products inXe136+U238multinucleon transfer reactions

Author: Vogt, A., Birkenbach, B., Reiter, P., Corradi, L., Mijatović, Tea, Montanari, D., Szilner, Suzana, Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Crespi, F. C. L., de Angelis, G., Désesquelles, P., Eberth, J., Farnea, E., Fioretto, E., Gadea, A., Geibel, K., Gengelbach, A., Giaz, A., Görgen, A., Gottardo, A., Grebosz, J., Hess, H., John, P. R., Jolie, J., Judson, D. S., Jungclaus, A., Korten, W., Leoni, S., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Montagnoli, G., Napoli, D., Pellegri, L., Pollarolo, G., Pullia, A., Quintana, B., Radeck, F., Recchia, F., Rosso, D., Şahin, E., Salsac, M. D., Scarlassara, F., Söderström, P.-A., Stefanini, A. M., Steinbach, T., Stezowski, O., Szpak, B., Theisen, Ch., Ur, C., Valiente-Dobón, J. J., Vandone, V., and Wiens, A.
Subjects: NATURAL SCIENCES, Nuclear Theory, Nuclear Experiment, Nuclear Physics
Abstract: Background: Multinucleon transfer reactions (MNT) are a competitive tool to populate exotic neutron-rich nuclei in a wide region of nuclei, where other production methods have severe limitations or cannot be used at all. Purpose: Experimental information on the yields of MNT reactions in comparison with theoretical calculations are necessary to make predictions for the production of neutron-rich heavy nuclei. It is crucial to determine the fraction of MNT reaction products which are surviving neutron emission or fission at the high excitation energy after the nucleon exchange. Method: Multinucleon transfer reactions in 136Xe+238U have been measured in a high-resolution γ-ray/particle coincidence experiment. The large solid-angle magnetic spectrometer PRISMA coupled to the high-resolution Advanced Gamma Tracking Array (AGATA) has been employed. Beamlike reaction products after multinucleon transfer in the Xe region were identified and selected with the PRISMA spectrometer. Coincident particles were tagged by multichannel plate detectors placed at the grazing angle of the targetlike recoils inside the scattering chamber. Results: Mass yields have been extracted and compared with calculations based on the grazing model for MNT reactions. Kinematic coincidences between the binary reaction products, i.e., beamlike and targetlike nuclei, were exploited to obtain population yields for nuclei in the actinide region and compared to x-ray yields measured by AGATA. Conclusions: No sizable yield of actinide nuclei beyond Z=93 is found to perform nuclear structure investigations. In-beam γ-ray spectroscopy is feasible for few-neutron transfer channels in U and the −2p channel populating Th isotopes. Background: Multinucleon transfer reactions (MNT) are a competitive tool to populate exotic neutron-rich nuclei in a wide region of nuclei, where other production methods have severe limitations or cannot be used at all. Purpose: Experimental information on the yields of MNT reactions in comparison with theoretical calculations are necessary to make predictions for the production of neutron-rich heavy nuclei. It is crucial to determine the fraction of MNT reaction products which are surviving neutron emission or fission at the high excitation energy after the nucleon exchange. Method: Multinucleon transfer reactions in 136Xe+238U have been measured in a high-resolution γ-ray/particle coincidence experiment. The large solid-angle magnetic spectrometer PRISMA coupled to the high-resolution Advanced Gamma Tracking Array (AGATA) has been employed. Beamlike reaction products after multinucleon transfer in the Xe region were identified and selected with the PRISMA spectrometer. Coincident particles were tagged by multichannel plate detectors placed at the grazing angle of the targetlike recoils inside the scattering chamber. Results: Mass yields have been extracted and compared with calculations based on the grazing model for MNT reactions. Kinematic coincidences between the binary reaction products, i.e., beamlike and targetlike nuclei, were exploited to obtain population yields for nuclei in the actinide region and compared to x-ray yields measured by AGATA. Conclusions: No sizable yield of actinide nuclei beyond Z=93 is found to perform nuclear structure investigations. In-beam γ-ray spectroscopy is feasible for few-neutron transfer channels in U and the −2p channel populating Th isotopes.
Published: 2015

188. Shell evolution beyond N=40: Cu 69,71,73

Author: Sahin, E., Doncel, M., Sieja, K., De Angelis, G., Gadea, A., Quintana, B., Görgen, A., Modamio, V., Mengoni, Daniele, Valiente Dobón, J. J., John, P. R., Albers, M., Bazzacco, D., Benzoni, G., Birkenbach, B., Cederwall, B., Clément, E., Curien, D., Corradi, L., Désesquelles, P., Dewald, A., Didierjean, F., Duchêne, G., Eberth, J., Erduran, M. N., Farnea, E., Fioretto, E., De France, G., Fransen, C., Gernhäuser, R., Gottardo, A., Hackstein, M., Hagen, T., Hernández Prieto, A., Hess, H., Hüyük, T., Jungclaus, A., Klupp, S., Korten, W., Kusoglu, A., Lenzi, SILVIA MONICA, Ljungvall, J., Louchart, C., Lunardi, Santo, Menegazzo, R., Michelagnoli, C., Mijatović, T., Million, B., Molini, P., Montagnoli, Giovanna, Montanari, D., Möller, O., Napoli, D. R., Obertelli, A., Orlandi, R., Pollarolo, G., Pullia, A., Recchia, Francesco, Reiter, P., Rosso, D., Rother, W., 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., C. A., Ur, and Yalcinkaya, M.
Published: 2015

189. High-spin states and band terminations in v 49

Author: Rodrigues, D., Hojman, D., Lenzi, SILVIA MONICA, Cardona, M. A., Farnea, E., Axiotis, M., Beck, C., Bednarczyk, P., Bizzetti, P. G., Bizzetti Sona, A. M., DELLA VEDOVA, Francesca, Grębosz, J., Haas, F., Kmiecik, M., Maj, A., Męczyński, W., Napoli, D. R., Nespolo, Massimo, Papka, P., Zafra, A. Sánchez I, Styczen, J., Thummerer, S., and Ziębliński, M.
Subjects: Nuclear and High Energy Physics
Published: 2015

190. Transition probabilities in neutron-rich Se-84,Se-86

Author: Litzinger, J., Blazhev, A., Dewald, A., Didierjean, F., Duchene, G., Fransen, C., Lozeva, R., Sieja, K., Verney, D., de Angelis, G., Bazzacco, D., Birkenbach, B., Bottoni, S., Bracco, A., Braunroth, T., Cederwall, B., Corradi, L., Crespi, F. C. L., Desesquelles, P., Eberth, J., Ellinger, E., Farnea, E., Fioretto, E., Gernhaeuser, R., Goasduff, A., Goergen, A., Gottardo, A., Grebosz, J., Hackstein, M., Hess, H., Ibrahim, F., Jolie, J., Jungclaus, A., Kolos, K., Korten, W., Leoni, S., Lunardi, S., Maj, A., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Million, B., Moeller, O., Modamio, V., Montagnoli, G., Montanari, D., Morales, A. I., Napoli, D. R., Niikura, M., Pollarolo, G., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Sahin, E., Salsac, M. D., Scarlassara, F., Söderström, P. -A, Stefanini, A. M., Stezowski, O., Szilner, S., Theisen, Ch., Dobon, J. J. Valiente, Vandone, V., and Vogt, A.
Subjects: Subatomär fysik, Atom and Molecular Physics and Optics, Subatomic Physics, Atom- och molekylfysik och optik
Abstract: Reduced quadrupole transition probabilities for low-lying transitions in neutron-rich Se-84,Se-86 are investigated with a recoil distance Doppler shift (RDDS) experiment. The experiment was performed at the Istituto Nazionale di Fisica Nucleare (INFN) Laboratori Nazionali di Legnaro using the Cologne Plunger device for the RDDS technique and the AGATA Demonstrator array for the gamma-ray detection coupled to the PRISMA magnetic spectrometer for an event-by-event particle identification. In Se-86 the level lifetime of the yrast 2(1)(+) state and an upper limit for the lifetime of the 4(1)(+) state are determined for the first time. The results of Se-86 are in agreement with previously reported predictions of large-scale shell-model calculations using Ni78-I and Ni78-II effective interactions. In addition, intrinsic shape parameters of lowest yrast states in Se-86 are calculated. In semimagic Se-84 level lifetimes of the yrast 4(1)(+) and 6(1)(+) states are determined for the first time. Large-scale shell-model calculations using effective interactions Ni78-II, JUN45, jj4b, and jj4pna are performed. The calculations describe B(E2; 2(1)(+) -> 0(1)(+)) and B(E2; 6(1)(+) -> 4(1)(+)) fairly well and point out problems in reproducing the experimental B(E2; 4(1)(+) -> 2(1)(+)).
Published: 2015

191. Shell evolution beyond N = 40: $^{69,71,73}$Cu

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., Gernhauser, R., Gottardo, A., Hackstein, M., Hagen, T., Hernandez-Prieto, A., Hess, H., Huyuk, T., Jungclaus, A., Klupp, S., Korten, W., Kusoglu, A., Lenzi, S. M., Ljungvall, J., Louchart, C., Lunardi, S., Menegazzo, R., Michelagnoli, C., Mijatović, Tea, Million, B., Molini, P., Montagnoli, G., Montanari, D., Moller, 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., Soderstrom, P.-A., Stefanini, A.M., Stezowski, O., Sulignano, B., Szilner, Suzana, Theisen, Ch., Ur, C.A., Yalcinkaya, 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), 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 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 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)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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.Tg, 21.60.Cs, 23.20.Lv, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], multinucleon transfer reactions, AGATA Demonstrator, recoil-distance Doppler-shift method, Nuclear Experiment
Abstract: International audience; The level structure of the neutron-rich 69Cu, 71Cu, and 73Cu isotopes has been investigated by means ofmultinucleon transfer reactions. The experiment was performed at Laboratori Nazionali di Legnaro using theAGATA Demonstrator array coupled to the PRISMA magnetic spectrometer. Lifetimes of excited states inCu nuclei were measured with the recoil-distance Doppler-shift method. The resulting electromagnetic matrixelements for transitions from excited states in 69,71,73Cu nuclei are used to assess the collective or single-particlecharacter of these states. The results are compared with predictions of large-scale shell-model calculations, givingfurther insight into the evolution of the proton pf shell as neutrons fill the 1g9/2 orbital.
Published: 2015

192. 1- and 2+ discrete states in Zr 90 populated via the (O 17, O ′ 17 γ) reaction

Author: Crespi, F. C. L., Bracco, A., Nicolini, R., Lanza, E. G., Vitturi, Andrea, Mengoni, Daniele, Leoni, S., Benzoni, G., Blasi, N., Boiano, C., Bottoni, S., Brambilla, S., Camera, F., Corsi, A., Giaz, Agnese, Million, B., Pellegri, L., Vandone, V., Wieland, O., Bednarczyk, P., Ciemała, M., Kmiecik, M., Krzysiek, M., Maj, A., Bazzacco, D., Bellato, M., Birkenbach, B., Bortolato, D., Calore, E., Cederwall, B., De Angelis, G., Désesquelles, P., Eberth, J., Farnea, E., Gadea, A., Görgen, A., Gottardo, A., Hess, H., Isocrate, R., Jolie, J., Jungclaus, A., Kempley, R. S., Labiche, M., Menegazzo, R., Michelagnoli, C., Molini, P., Napoli, D. R., Pullia, A., Quintana, B., Recchia, Francesco, Reiter, P., Sahin, E., Siem, S., Söderström, P. A., Stezowski, O., Theisen, C., Ur, C., and Valiente Dobón, J. J.
Published: 2015

193. Transition probabilities in neutron-rich Se 84,86

Author: Litzinger, J., Blazhev, A., Dewald, A., Didierjean, F., Duchêne, G., Fransen, C., Lozeva, R., Sieja, K., Verney, D., De Angelis, G., Bazzacco, D., Birkenbach, B., Bottoni, S., Bracco, A., Braunroth, T., Cederwall, B., Corradi, L., Crespi, F. C. L., Désesquelles, P., Eberth, J., Ellinger, E., Farnea, E., Fioretto, E., Gernhäuser, R., Goasduff, Alain, Görgen, A., Gottardo, A., Grebosz, J., Hackstein, M., Hess, H., Ibrahim, F., Jolie, J., Jungclaus, A., Kolos, K., Korten, W., Leoni, S., Lunardi, Santo, Maj, A., Menegazzo, R., Mengoni, Daniele, Michelagnoli, Caterina, Mijatovic, T., Million, B., Möller, O., Modamio, V., Montagnoli, Giovanna, Montanari, Daniele, Morales, A. I., Napoli, D. R., Niikura, M., Pollarolo, G., Pullia, A., Quintana, B., Recchia, Francesco, Reiter, P., Rosso, D., Sahin, E., Salsac, M. D., Scarlassara, Fernando, Söderström, P. A., Stefanini, A. M., Stezowski, O., Szilner, S., Theisen, C. h., Valiente Dobón, J. J., Vandone, V., and Vogt, A.
Subjects: Nuclear and High Energy Physics
Published: 2015

194. Spectroscopy of neutron-rich 34, 35, 36, 37, 38P populated in binary grazing reactions

Author: Chapman, R., Hodsdon, A., Bouhelal, M., Haas, F., Liang, X., Azaiez, F., Wang, Z.M., Behera, B.R., Burns, M., Caurier, E., Corradi, L., Curien, D., Deacon, A.N., Dombradi, Z.S., Farnea, E., Fioretto, E., Gadea, 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: neutron-rich nuclei, fragment-gamma coincidences, Nuclear Experiment
Abstract: The neutron-rich nuclei 34, 35, 36, 37, 38P were populated in binary grazing reactions initiated by a beam of 36S ions at 215 MeV incident on a thin 208Pb target. The combination of the PRISMA magnetic spectrometer and the CLARA array of escape-suppressed Ge detectors was used to detect gamma rays in coincidence with projectile-like nuclear species. Further evidence to support the observed gamma decay of excited states of the populated phosphorus isotopes is provided by gamma-gamma coincidence measurements based on the results of an earlier thick-target deep-inelastic experiment. Level schemes for 34, 35, 36, 37, 38P are presented and discussed within the context of state-of-the-art shell-model calculations. In particular, new spin and parity assignments are proposed for a number of excited states of 36P. The evolution with neutron number of the energy difference of the low-lying 3/2+ and 1/2+ states in the odd-A isotopes of phosphorus, and the relationship to nuclear collectivity, is discussed. The evolution with neutron number of the shell-model wave functions of the first 1/2+, 3/2+, and 5/2+ states of the odd-A phosphorus isotopes and of the first 3−, 4−, and 5− states of the even-A isotopes is also explored.
Published: 2015

195. Transition probabilities in neutron-rich 84Se, 86Se

Author: Litzinger, J., Blazhev, A., Dewald, A., Didierjean, F., Duchene, G., Fransen, C., Lozeva, R., Sieja, K., Verney, D., de Angelis, G., Bazzacco, D., Birkenbach, B., Bottoni, S., Bracco, A., Braunroth, T., Cederwall, B., Corradi, L., Crespi, F. C. L., Desesquelles, P., Eberth, J., Ellinger, E., Farnea, E., Fioretto, E., Gernhauser, R., Goasduff, A., Gorgen, A., Gottardo, A., Grebosz, J., Hackstein, M., Hess, H., Ibrahim, F., Jolie, J., Jungclaus, A., Kolos, K., Korten, W., Leoni, S., Lunardi, S., Maj, A., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, Tea, Million, B., Moller, O., Modamio, V., Montagnoli, G., Montanari, D., Morales, A. I., Napoli, D. R., Niikura, M., Pollarolo, G., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Sahin, E., Salsac, M. D., Scarlassara, F., Soderstrom, P.-A., Stefanini, A. M., Stezowski, O., Szilner, Suzana, Theisen, Ch., Valiente Dobon, J. J., Vandone, V., and Vogt, A.
Subjects: SHELL-MODEL, LIFETIME MEASUREMENTS, EXCITED-STATES, EXCITATIONS
Abstract: Reduced quadrupole transition probabilities for low-lying transitions in neutron-rich Se-84, Se-86 are investigated with a recoil distance Doppler shift (RDDS) experiment. The experiment was performed at the Istituto Nazionale di Fisica Nucleare (INFN) Laboratori Nazionali di Legnaro using the Cologne Plunger device for the RDDS technique and the AGATA Demonstrator array for the gamma-ray detection coupled to the PRISMA magnetic spectrometer for an event- by-event particle identification. In Se-86 the level lifetime of the yrast 2(1)(+) state and an upper limit for the lifetime of the 4(1)(+) state are determined for the first time. The results of 86Se are in agreement with previously reported predictions of large-scale shell-model calculations using 78Ni-I and 78Ni- II effective interactions. In addition, intrinsic shape parameters of lowest yrast states in 86Se are calculated. In semi-magic 84Se level lifetimes of the yrast 4(1)(+) and 6(1)(+) states are determined for the first time. Large-scale shell-model calculations using effective interactions 78Ni-II, JUN45, jj4b, and jj4pna are performed. The calculations describe B(E2 ; 2(1)(+) -> 0(1) (+)) and B(E2 ; 6(1)(+) -> 4(1)(+)) fairly well and point out problems in reproducing the experimental B(E2 ; 4(1)(+) -> 2(1)(+)).
Published: 2015

196. 1− and 2+ discrete states in Zr90 populated via the (O17,O′17γ) reaction

Author: Crespi, F.C.L., Bracco, A., Nicolini, R., Lanza, E.G., Vitturi, A., Mengoni, D., Leoni, S., Benzoni, G., Blasi, N., Bottoni, C. Boiano S., Brambilla, S., Camera, F., Corsi, A., Giaz, A., Million, B., Pellegri, L., Vandone, V., Wieland, O., Bednarczyk, P., Ciemała, M., Kmiecik, M., Krzysiek, M., Maj, A., Bazzacco, D., Bellato, M., Birkenbach, B., Bortolato, D., Calore, E., Cederwall, B., Angelis, G. De, Désesquelles, P., Eberth, J., Farnea, E., Gadea, A., Görgen, A., Gottardo, A., Hess, H., Isocrate, R., Jolie, J., Jungclaus, A., Kempley, R.S., Labiche, M., Menegazzo, R., Michelagnoli, C., Molini, P., Napoli, D.R., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Sahin, E., Siem, S., Söderström, P.-A., Stezowski, O., Theisen, Ch., Ur, C., Valiente-Dobón, J.J., 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), 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 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: Nuclear Theory, SCATTERING, ARRAY, PYGMY DIPOLE RESONANCE, GIANT-RESONANCES, PHOTON DECAY, EXCITATION, PB-208, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract: International audience; 2+ and 1− states in Zr90 were populated via the (O17,O′17γ) reaction at 340 MeV. The γ decay was measured with high resolution using the AGATA (advanced γ tracking array demonstrator array). Differential cross sections were obtained at few different angles for the scattered particle. The results of the elastic scattering and inelastic excitation of 2+,3−, and 1− states are compared with distorted-wave Born approximation (DWBA) calculations, using both the standard collective form factor and a form factor obtained by folding microscopically calculated transition densities. This allowed to extract the isoscalar component of the 1− state at 6.424 MeV. The comparison of the present (O17,O′17γ) data with existing (γ,γ′) and (p,p′) data in the corresponding region of the γ continuum (6–11 MeV), characterized by a large E1 component, shows completely different behaviors of the cross section as a function of the nuclear excitation energy. The comparison of the data with DWBA calculations suggests a decrease of the isoscalar strength in the cross section with increasing excitation energy.
Published: 2015

197. Spectroscopy of the neutron-rich actinide nucleus 240U following multinucleon-transfer reactions

Author: Birkenbach, B., Vogt, A., Geibel, K., Recchia, F., Reiter, P., Valiente-Dobón, J.J., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Corradi, L., Crespi, F.C.L., de Angelis, G., Désesquelles, P., Eberth, J., Farnea, E., Fioretto, E., Gadea, A., Gengelbach, A., Giaz, A., Görgen, A., Gottardo, A., Grebosz, J., Hess, H., John, P.R., Jolie, J., Judson, D.S., Jungclaus, A., Korten, W., Lenzi, S., Leoni, S., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, Tea, Montagnoli, G., Montanari, D., Napoli, D., Pellegri, L., Pullia, A., Quintana, B., Radeck, F., Rosso, D., Sahin, E., Salsac, D.-M., Scarlassara, F., Söderström, P.-A., Stefanini, A.M., Steinbach, T., Stezowski, O., Szilner, Suzana, Szpak, B., Theisen, Ch., Ur, C., Vandone, V., and Wiens, A.
Subjects: Nuclear Theory, gamma-spectroscopy, the neutron-rich actinide region, AGATA and CLARA spectrometers, PRISMA spectrometer, Nuclear Experiment
Abstract: Background: Spectroscopic information in the neutron-rich actinide region are important to test theory in order to make predictions for the heaviest nuclei. Purpose: Gamma-ray spectroscopy of neutron-rich heavy nuclei in the actinide region. Method: Multinucleon-transfer reactions in 70Zn+238U and in 136Xe+238U have been measured in two epxeriments performed at INFN Legnaro, Italy. In the 70Zn experiment the high resolution HPGe Clover Array (CLARA) coupled to the magnetic spectrometer PRISMA was employed. In the 136Xe experiment the high-resolution Advanced Gamma Tracking Array (AGATA) was used in combination with PRISMA and the DANTE MCP detectors. Results: The ground-state band of 240U was measured up to the 24+ level. Results from a gamma-gamma coincidence and from particle coincidence are shown. Moments of inertia show clear upbend. Intriguing evidence for an extended first negative-parity band of 240U is found. Conclusions: Detailed comparison with latest calculations show best agreement with cranked relativistic Hartree-Bogoliubov (CRHB) for the g. s. band properties. The negative-parity band shows the characteristics of a band based on an octupole vibration.
Published: 2015

198. Light and heavy transfer products in 136Xe+238U multinucleon transfer reactions

Author: Vogt, A.: Birkenbach, B., Reiter, P., Corradi, L., Mijatovic, Tea, Montanari, D., Szilner, Suzana, Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Crespi, F. C. L., de Angelis, G., Desesquelles, P., Eberth, J., Farnea, E., Fioretto, E., Gadea, A., Geibel, K., Gengelbach, A., Giaz, A., Gorgen, A., Gottardo, A., Grebosz, J., Hess, H., John, P. R., Jolie, J., Judson, D.S., Jungclaus, A., Korten, W., Leoni, S., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Montagnoli, G., Napoli, D., Pellegri, L., Pollarolo, G., Pullia, A., Quintana, B., Radeck, F., Recchia, F., Rosso, D., Sahin, E., Salsac, M. D., Scarlassara, F., Soderstrom, P.-A., Stefanini, A. M., Steinbach, T., Stezowski, O., Szpak, B., Theisen, Ch., Ur, C., Valiente-Dobon, J. J., Vandone, V., and Wiens, A.
Subjects: Nuclear Theory, Heavy ion transfer reactions, gamma transitions, magnetic spectrometer, Nuclear Experiment
Abstract: Background: Multinucleon transfer reactions (MNT) are a competitive tool to populate exotic neutron-rich nuclei in a wide region of nuclei, where other production methods have severe limitations or cannot be used at all. Purpose: Experimental information on the yields of MNT reactions in comparison with theoretical calculations are necessary to make predictions for the production of neutron-rich heavy nuclei. It is crucial to determine the fraction of MNT reaction products which are surviving neutron emission or fission at the high excitation energy after the nucleon exchange. Method: Multinucleon transfer reactions in Xe136+U238 have been measured in a high-resolution γ-ray/particle coincidence experiment. The large solid-angle magnetic spectrometer PRISMA coupled to the high-resolution Advanced Gamma Tracking Array (AGATA) has been employed. Beamlike reaction products after multinucleon transfer in the Xe region were identified and selected with the PRISMA spectrometer. Coincident particles were tagged by multichannel plate detectors placed at the grazing angle of the targetlike recoils inside the scattering chamber. Results: Mass yields have been extracted and compared with calculations based on the grazing model for MNT reactions. Kinematic coincidences between the binary reaction products, i.e., beamlike and targetlike nuclei, were exploited to obtain population yields for nuclei in the actinide region and compared to x-ray yields measured by AGATA. Conclusions: No sizable yield of actinide nuclei beyond Z=93 is found to perform nuclear structure investigations. In-beam γ-ray spectroscopy is feasible for few-neutron transfer channels in U and the −2p channel populating Th isotopes.
Published: 2015

199. Pygmy dipole resonance in 124Sn populated by inelastic scattering of 17O

Author: Pellegri, L., Bracco, A., Crespi, F.C.L., Leoni, S., Camera, F., Lanza, E.G., Kmiecik, M., Maj, A., Avigo, R., Benzoni, G., Blasi, N., Boiano, C., Bottoni, S., Brambilla, S., Ceruti, S., Giaz, A., Million, B., Morales, A.I., Nicolini, R., Vandone, V., Wieland, O., Bazzacco, D., Bednarczyk, P., Bellato, M., Birkenbach, B., Bortolato, D., Cederwall, B., Charles, L., Ciemala, M., De Angelis, G., Désesquelles, P., Eberth, J., Farnea, E., Gadea, A., Gernhäuser, R., Görgen, A., Gottardo, A., Grebosz, J., Hess, H., Isocrate, R., Jolie, J., Judson, D., Jungclaus, A., Karkour, N., Krzysiek, M., Litvinova, E., Lunardi, S., Mazurek, K., Mengoni, D., Michelagnoli, C., Menegazzo, R., Molini, P., Napoli, D.R., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Salsac, M.D., Siebeck, B., Siem, S., Simpson, J., Söderström, P.-A., Stezowski, O., Theisen, Ch., Ur, C., Valiente Dobon, J.J., and Zieblinski, M.
Published: 2014
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200. Hindered E4 decay of the 12+ yrast trap in 52Fe

Author: Gadea, A., Lenzi, S.M., Napoli, D.R., Axiotis, M., Ur, C.A., Martínez-Pinedo, G., Górska, M., Roeckl, E., Caurier, E., Nowacki, F., de Angelis, G., Batist, L., Borcea, R., Brandolini, F., Cano-Ott, D., Döring, J., Fahlander, C., Farnea, E., Grawe, H., Hellström, M., Janas, Z., Kirchner, R., La Commara, M., Mazzocchi, C., Nácher, E., Plettner, C., Płochocki, A., Rubio, B., Schmidt, K., Schwengner, R., Tain, J.L., and Żylicz, J.
Subjects: Nuclear and High Energy Physics
Published: 2005
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