Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Crossing of large multiquasiparticle magnetic-rotation bands in
  $^{198}$Bi   High-spin states in the doubly-odd $^{198}$Bi nucleus have been studied by
using the $^{185,187}$Re($^{16}$O, xn) reactions at the beam energy of 112.5
MeV. $\gamma-\gamma$ coincidence were measured by using the INGA array with 15
Compton suppressed clover HPGe detectors. The observed levels have been
assigned definite spin-parity. The high spin structure is grouped into three
bands (B1, B2 and B3), of which two (B1 and B2) exhibit the properties of
magnetic rotation (MR). Tilted axis cranking calculations were carried out to
explain the MR bands having large multi-quasiparticle configurations. The
calculated results explain the bands B1 and B2 very nicely, confirming the
shears mechanism and suggest a crossing of two MR bands in both the cases. The
crossing is from 6-qp to 8-qp in band B1 and from 4-qp to 6-qp in band B2, a
very rare finding. A semiclassical model has also been used to obtain the
particle-hole interaction strengths for the bands B1 and B2, below the band
crossing.

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The categories of this paper are: math
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The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn
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The categories of this paper are: physics
32
The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
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The categories of this paper are: cs
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The categories of this paper are: q-alg
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: eess