Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $^{57}$Zn $\beta$-delayed proton emission establishes the $^{56}$Ni
  $rp$-process waiting point bypass   We measured the $^{57}$Zn $\beta$-delayed proton ($\beta$p) and $\gamma$
emission at the National Superconducting Cyclotron Laboratory. We find a
$^{57}$Zn half-life of 43.6 $\pm$ 0.2 ms, $\beta$p branching ratio of (84.7
$\pm$ 1.4)%, and identify four transitions corresponding to the exotic
$\beta$-$\gamma$-$p$ decay mode, the second such identification in the $f
p$-shell. The $p/\gamma$ ratio was used to correct for isospin mixing while
determining the $^{57}$Zn mass via the isobaric multiplet mass equation.
Previously, it was uncertain as to whether the rp-process flow could bypass the
textbook waiting point $^{56}$Ni for astrophysical conditions relevant to
Type-I X-ray bursts. Our results definitively establish the existence of the
$^{56}$Ni bypass, with 14-17% of the $rp$-process flow taking this route.

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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
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The categories of this paper are: econ
11
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: supr-con
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The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
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The categories of this paper are: stat