40 research outputs found

    Anomalous Crossing Frequency in Odd Proton Nuclei

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    A generic explanation for the recently observed anomalous crossing frequencies in odd proton rare earth nuclei is given. As an example, the proton 12[541]{1\over 2} [541] band in 175^{175}Ta 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

    Excited Nuclear States for Ta-167 (Tantalum)

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    High-spin states in 205Bi

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    Extremely long lived 65- 2 isomer in 213Fr

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    An isomeric state with a mean life of 4.5(2) μs and a spin of 65- 2 has been observed in Fr at an excitation energy of 8095 keV. A g-factor of 0.695(7) was measured for this state using the TDPAD method. The properties of this isomer agree very well with predictions of semi empirical shell model calculations when coupling to the 3 octupole vibration are included
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