Anomalous Crossing Frequency in Odd Proton Nuclei
Yang Sun, Shuxian Wen, Da Hsuan Feng
Abstract
A generic explanation for the recently observed anomalous crossing frequencies in odd proton rare earth nuclei is given. As an example, the proton 1 2 [541] band in 175Ta is discussed in detail by using the angular momentum projection theory. It is shown that the quadrupole pairing interaction is decisive in delaying the crossing point and the changes in crossing frequency along the isotope chain are due to the different neutron shell fillings.
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