Yazar "Bazzacco, Dino B." seçeneğine göre listele

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    Conceptual design and infrastructure for the installation of the first AGATA sub-array at LNL
    (Elsevier Science, 2011) Gadea, Andrés; Farnea, Enrico; Valiente-Dobòn, Jose Javier; Million, Bénédicte; Mengoni, Daniele; Bazzacco, Dino B.; Recchia, Francesco; Sezgin, Aydın
    The first implementation of the AGATA spectrometer consisting of five triple germanium detector clusters has been installed at Laboratori Nazionali di Legnaro, INFN. This setup has two major goals, the first one is to validate the gamma-tracking concept and the second is to perform an experimental physics program using the stable beams delivered by the Tandem-PIAVE-ALPI accelerator complex. A large variety of physics topics will be addressed during this campaign, aiming to investigate both neutron and proton-rich nuclei. The setup has been designed to be coupled with the large-acceptance magnetic-spectrometer PRISMA. Therefore, the in-beam prompt gamma rays detected with AGATA will be measured in coincidence with the products of multinucleon-transfer and deep-inelastic reactions measured by PRISMA. Moreover, the setup is versatile enough to host ancillary detectors, including the heavy-ion detector DANTE, the gamma-ray detector array HELENA, the Cologne plunger for lifetime measurements and the Si-pad telescope TRACE. In this paper the design; characteristics and performance figures of the setup will be described.
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    High-spin level structure of 35 S
    (American Physical Society, 2014) Aydın, Sezgin; Ionescu-Bujor, M.; Recchia, Francesco; Lenzi, Silvia M.; Bouhelal, Mouna; Bazzacco, Dino B.; Bizzeti, P. G.; Bizzeti-Sona A.M.
    The nucleus 35S has been studied by in-beam ?-ray spectroscopy using the 24Mg(14N,3p) fusion-evaporation reaction at Elab=40 MeV. A level scheme extended up to J?=17/2+ at 8023 keV and J?=13/2- at 6352 keV has been established. Lifetimes of six excited states have been determined by applying the Doppler shift attenuation method. The experimental data have been compared with the results of large-scale shell model calculations performed using different effective interactions and model spaces allowing particle-hole excitations across the N=Z=20 shell gap. © 2014 American Physical Society.
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    High-spin structure and intruder excitations in Cl-36
    (American Physical Society, 2012) Aydın, Sezgin; Recchia, Francesco; Ionescu-Bujor, M.; Gadea, Andrés; Lenzi, Silvia M.; Lunardi, Santo; Ur, Calin Alexandru; Bazzacco, Dino B.; Bizzeti, P. G.; Bizzeti-Sona, A. M.; Bouhelal, M.; de Angelis, G.; Deloncle, I.; Farnea, E.; Gottardo, A.; Haas, F.; Huyuk, T.; Laftchiev, H.; Mengoni, D.; Menegazzo, R.; Michelagnoli, C.; Napoli, D. R.; Sahin, E.; Singh, P. P.; Tonev, D.; Valiente-Dobon, J. J.
    Excited states up to J(pi) = 11(-) at 10 296 keV and J(pi) = 10(+) at 10 707 keV have been populated in the odd-odd Cl-36 nucleus using the Mg-24(N-14,2p) fusion-evaporation reaction at E-lab = 31 MeV. Twenty new states and 62 new gamma transitions have been identified by employing gamma-gamma and gamma-gamma-gamma coincidences. Lifetimes have been investigated by the Doppler shift attenuation method. The experimental data have been compared with the results of large-scale shell-model calculations performed using different effective interactions and model spaces allowing particle-hole excitations across the N = Z = 20 shell gap.
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    Structure of the N=50 As, Ge, Ga nuclei
    (2012) de Angelis, Giacomo; Duchene, Gilbert G.; Gadea, Andrés; Lisetskiy, Alexander F.; Ackermann, Dieter; Aydın, Sezgin; Azaiez, Faiçal A.; Bazzacco, Dino B.
    The level structures of the N=50 83 As, 82 Ge, and 81 Ga 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 ?-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 78 Ni (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. © 2012 Elsevier B.V.