High spin states in 191 193 Au and 192 Pt Evidence for oblate deformation and triaxial shapes       
Yazarlar (1)
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Physical Review C Nuclear Physics
Dergi ISSN 0556-2813
Dergi Tarandığı Indeksler SCI
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 10-2007
Cilt No 76
Sayı 4
DOI Numarası 10.1103/PhysRevC.76.044315
Özet
High-spin states of Au191,193 and Pt192 have been populated in the W186(B11, xn) and W186(B11, p4n) reactions, respectively, at a beam energy of 68 MeV and their γ decay was studied using the YRAST Ball detector array at the Wright Nuclear Structure Laboratory at Yale University. The level scheme of Au193 has been extended up to Iπ=55/2+. New transitions were observed also in Au191 and Pt192. Particle-plus-Triaxial-Rotor (PTR) and Total Routhian Surface (TRS) calculations were performed to determine the equilibrium deformations of the Au isotopes. The predictions for oblate deformations in these nuclei are in agreement with the experimental data. Development of nonaxial shapes is discussed within the framework of the PTR model. © 2007 The American Physical Society.
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