• Geometry of magnetic rotational (MR) band-crossing phenomenon in MR bands

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    • Keywords


      Magnetic rotational band; band-crossing; semiclassical; $B(M1)$; alignment plot

    • Abstract


      A semiclassical (SC) approach is proposed to calculate the $B(M1)$ transition rates in the band-crossing region of two magnetic rotational (MR) bands. In the present work, a geometry is suggested for the shear blades to govern its behaviour during the band-crossing. In the crossing region, gradual alignment of two nucleons is responsible for the crossing behaviour and it must give a quantised resultant angular momentum. As an example, it is successfully implemented for the MR bands in the mass $A = 110$ and $A = 200$ regions. A good agreement of the present semiclassical calculations with the experimental values is presented and furthermore, it is seen that the present proposal is also helpful to see the core contribution in the MR phenomenon.

    • Author Affiliations



      1. Department of Physics and Astrophysics, University of Delhi, Delhi 110 007, India
      2. Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400 005, India
    • Dates

  • Pramana – Journal of Physics | News

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