Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anomalous Neutron Yields Confirmed for Ba-Mo and Newly Observed for
  Ce-Zr from Spontaneous Fission of $^{252}$Cf   We reinvestigated the neutron multiplicity yields of Ba-Mo, Ce-Zr, Te-Pd, and
Nd-Sr from the spontaneous fission of $^{252}$Cf; by (i) using both
$\gamma$-$\gamma$-$\gamma$-$\gamma$ and $\gamma$-$\gamma$-$\gamma$ coincidence
data, (ii) using up to date level scheme structures, and (iii) cross-checking
analogous energy transitions in multiple isotopes, we have achieved higher
precision than previous analyses. Particular attention was given to the Ba-Mo
pairs where our results clearly confirm that the Ba-Mo yield data have a second
hot fission mode where 8, 9, 10, and now 11 neutron evaporation channels are
observed. These are the first observations of the 11 neutron channel. These
8-11 neutron channels are observed for the first time in the Ce-Zr pairs, but
are not observed in other fission pairs. The measured intensities of the second
mode in Ba-Mo and Ce-Zr pairs are $\sim$1.5(4)$\%$ and $\sim$1.0(3)$\%$,
respectively. These high neutron number evaporation modes can be an indication
of hyperdeformation and/or octupole deformation in $^{143-145}$Ba and in
$^{146,148}$Ce at scission to give rise to such high neutron multiplicities.

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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
1
The categories of this paper are: cs
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The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th