Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Infinitesimal cranking for triaxial angular-momentum-projected
  configuration-mixing calculation and its application to the gamma vibrational
  band   Inclusion of time-odd components into the wave function is important for
reliable description of rotational motion by the angular-momentum-projection
method; the cranking procedure with infinitesimal rotational frequency is an
efficient way to realize it. In the present work we investigate the effect of
this infinitesimal cranking for triaxially deformed nucleus, where there are
three independent cranking axes. It is found that the effects of cranking about
three axes on the triaxial energy spectrum are quite different and inclusion of
all of them considerably modify the resultant spectrum from the one obtained
without cranking. Employing the Gogny D1S force as an effective interaction, we
apply the method to the calculation of the multiple gamma vibrational bands in
$^{164}$Er as a typical example, where the angular-momentum-projected
configuration-mixing with respect to the triaxial shape degree of freedom is
performed. With this method, both the $K=0$ and $K=4$ two-phonon gamma
vibrational bands are obtained with considerable anharmonicity. Reasonably good
agreement, though not perfect, is obtained for both the spectrum and transition
probabilities with rather small average triaxial deformation $\gamma\approx
9^\circ$ for the ground state rotational band. The relation to the wobbling
motion at high-spin states is also briefly discussed.

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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat