Journal ArticleDOI
Search for the pygmy dipole resonance in 68Ni at 600 MeV/nucleon.
O. Wieland,A. Bracco,F. Camera,G. Benzoni,N. Blasi,S. Brambilla,F. C. L. Crespi,S. Leoni,B. Million,R. Nicolini,A. Maj,P. Bednarczyk,J. Grebosz,M. Kmiecik,W. Meczynski,J. Styczen,T. Aumann,A. Banu,T. Beck,F. Becker,L. Caceres,P. Doornenbal,H. Emling,J. Gerl,Hans Geissel,M. Górska,O. Kavatsyuk,M. Kavatsyuk,I. Kojouharov,N. Kurz,R. Lozeva,Norio Saito,T. Saito,H. Schaffner,H. J. Wollersheim,J. Jolie,P. Reiter,N. Warr,G. Deangelis,A. Gadea,D. R. Napoli,S. M. Lenzi,S. Lunardi,D. L. Balabanski,G. Lobianco,C. M. Petrache,A. Saltarelli,M. Castoldi,Alessandro Zucchiatti,J. Walker,A. Bürger +50 more
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TLDR
The gamma decay from Coulomb excitation of 68Ni at 600 MeV/nucleon on a Au target was measured using the RISING setup at the fragment separator of GSI, showing a peak centered at approximately 11 MeV, whose intensity can be explained in terms of an enhanced strength of the dipole response function (pygmy resonance).Abstract:
The $\ensuremath{\gamma}$ decay from Coulomb excitation of $^{68}\mathrm{Ni}$ at $600\text{ }\text{ }\mathrm{MeV}/\mathrm{\text{nucleon}}$ on a Au target was measured using the RISING setup at the fragment separator of GSI. The $^{68}\mathrm{Ni}$ beam was produced by a fragmentation reaction of $^{86}\mathrm{Kr}$ at $900\text{ }\text{ }\mathrm{MeV}/\mathrm{\text{nucleon}}$ on a $^{9}\mathrm{Be}$ target and selected by the fragment separator. The $\ensuremath{\gamma}$ rays produced at the Au target were measured with HPGe detectors at forward angles and with ${\mathrm{BaF}}_{2}$ scintillators at backward angles. The measured spectra show a peak centered at approximately 11 MeV, whose intensity can be explained in terms of an enhanced strength of the dipole response function (pygmy resonance). Such pygmy structure has been predicted in this unstable neutron-rich nucleus by theory.read more
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Skyrme interaction and nuclear matter constraints
Mariana Dutra,Odilon Lourenço,J. S. Sá Martins,A. Delfino,Jirina Stone,Jirina Stone,Paul Stevenson +6 more
TL;DR: In this article, a detailed assessment of the ability of the 240 Skyrme interaction parameter sets in the literature to satisfy a series of criteria derived from macroscopic properties of nuclear matter in the vicinity of nuclear saturation density at zero temperature and their density dependence, derived by the liquid-drop model, in experiments with giant resonances and heavy-ion collisions is presented.
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Experimental studies of the Pygmy Dipole Resonance
TL;DR: A review about the present status of experimental approaches to study low-lying electric dipole strength (often denoted as Pygmy Dipole Resonance) in stable and radioactive atomic nuclei can be found in this paper.
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Indirect techniques in nuclear astrophysics: a review
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Nuclear equation of state from ground and collective excited state properties of nuclei
Xavier Roca-Maza,Nils Paar +1 more
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Journal ArticleDOI
Characterization of large volume 3.5″×8″ LaBr3:Ce detectors
Agnese Giaz,Luna Pellegri,Stefano Riboldi,F. Camera,N. Blasi,C. Boiano,A. Bracco,S. Brambilla,S. Ceruti,S. Coelli,F. C. L. Crespi,M. Csatlós,S Frega,J. Gulyás,A. Krasznahorkay,Stefano Lodetti,B. Million,Alan Owens,Francesco Quarati,L. Stuhl,Oliver Wieland +20 more
TL;DR: In this paper, the properties of large volume cylindrical 3.5″×8″ (89mm×203mm) LaBr 3 :Ce scintillation detectors coupled to the Hamamatsu R10233-100SEL photo-multiplier tube were investigated.
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