Shape-coexisting rotation in neutron-deficient Hg and Pb nuclei
نویسندگان
چکیده
C. F. Jiao ( ),1 Yue Shi ( ),1 H. L. Liu ( ),2 F. R. Xu ( ),1,3,* and P. M. Walker4 1State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China 2Department of Applied Physics, Xi’an Jiaotong University, Xi’an 710049, China 3State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China 4Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom (Received 17 November 2014; revised manuscript received 21 January 2015; published 9 March 2015)
منابع مشابه
The island of deformation and shape co - existence in neutron - deficient nuclei of the Pb region using relativistic mean field model
We have investigated the ground-state structures of even-even neutron-deficient isotopes of Hg and Pb nuclei within the framework of a deformed relativistic mean field formalism for a number of commonly used parameter sets, namely NL1, NL3, NL−SH, NL−RA1 and TM1. The ground states of a bunch of Hg and Pb-isotopes towards the proton-dripline are found to be deformed for all the forces, with a co...
متن کاملShape coexistence in the neutron-deficient isotope
Neutron-deficient nuclei near the Z=82 closed shell exhibit the phenomenon of shape coexistence where the nucleus can take on oblate, prolate, and even spherical shapes at around the same excitation energy. The single-proton excitations in 187 Tl (with Z=81) can be used as a probe into the microscopic mechanisms behind this phenomenon. Previous studies of 187 Tl deduced the presence of coexisti...
متن کاملCross-sections for production of neutron deficient Sg - isotopes in reactions
Due to low cross-sections for the production of heaviest nuclei the choice of the optimum reaction for specific nuclides is crucial for nuclear structure investigations based on α-γ-decay spectroscopy, which demand maximum numbers of observed events. Following previous decay studies of No [1] and Rf [2] an experiment to investigate Sg, the next heavier N=153 isotone, for which only rough decay ...
متن کاملThe Z=82 shell closure in neutron-deficient Pb isotopes
Recent mass measurements show a substantial weakening of the binding energy difference δ2p(Z,N) = E(Z − 2, N)− 2E(Z,N) +E(Z + 2, N) in the neutron-deficient Pb isotopes. As δ2p is often attributed to the size of the proton magic gap, it might be speculated that reduction in δ2p is related to a weakening of the spherical Z = 82 shell. We demonstrate that the observed trend is described quantitat...
متن کاملFe b 20 03 Spectroscopy of heavy nuclei by configuration mixing of symmetry restored mean - field states : Shape coexistence in neutron - deficient Pb isotopes
We study shape coexistence and low-energy excitation spectra in neutron-deficient Pb isotopes using configuration mixing of angular-momentum and particle-number projected self-consistent mean-field states. The same Skyrme interaction SLy6 is used everywhere in connection with a density-dependent zero-range pairing force. Methods well suited to describe microscopically medium and heavy nuclei ar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015