Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $\Upsilon(6S)$ and triangle singularity in $e^+e^- \to B_1(5721) \bar B
  \to Z_b(10610) \, \pi$   We discuss the possibility that production of final states with bottomonium
and light mesons at the peak $\Upsilon(6S)$ in the $e^+e^-$ annihilation at
approximately 11.00 GeV is in fact due to a triangular singularity at the
threshold of the heavy meson pair production $B_1(5721) \bar B + c.c.$ through
the process $e^+e^- \to B_1(5721) \bar B \to Z_b(10610) \, \pi$. The presence
of the hidden-bottom resonance $Z_b(10610)$ then explains the observed enhanced
production of the final channels with both ortho- and para- bottomonium states,
$\Upsilon(nS) \pi \pi$ and $h_b(kP) \pi \pi$. The discussed mechanism also
predicts a distinct pattern for production of hidden-bottom states at the
$\Upsilon(6S)$ energy that can be tested by experiment.

33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph