Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Identification of a long lived $\beta$ decaying isomer in $^{150}$Pm   The decay of odd-odd $^{150}$Pm has been studied by populating the nucleus
with the $^{150}$Nd(p,n)$^{150}$Pm reaction at E$_{beam}$ = 8.0 MeV using
97$\%$ enriched $^{150}$Nd target. The presence of an isomeric state with
$\beta$ decay half life of 2.2(1) h could be identified in $^{150}$Pm by
following the half lives of the observed $\gamma$ transitions. The decay of the
isomer to the excited levels of $^{150}$Sm has been confirmed by observing the
$\gamma - \gamma$ coincidence with the VENUS array of six Compton suppressed
Clover HPGe detectors. The $\beta$ decay end-point energies corresponding to
the decay from the $^{150g}$Pm and $^{150m}$Pm have been measured using a
$\beta-\gamma$ coincidence setup of two thin window Planar HPGe detectors and
four Clover HPGe detectors of the VENUS array. The systematics of the similar
isomeric states in neighboring nuclei has been studied to understand the
underlying structure of these states. Shell model calculation has been
performed by using OXBASH code which indicates the presence of a 5$^-$ isomeric
state at very low excitation in the nucleus. The calculation also suggests
hindered electromagnetic decay of this isomer and supports the possibility of
its $\beta$ decay to the excited levels of $^{150}$Sm.

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The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: q-alg
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: alg-geom
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: chao-dyn