Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evidence for a new $\Sigma^{*}$ resonance with $J^P=1/2^-$ in the old
  data of $K^-p\to\Lambda\pi^+\pi^-$ reaction   Distinctive patterns are predicted by quenched quark models and unquenched
quark models for the lowest SU(3) baryon nonet with spin parity $J^P=1/2^-$.
While the quenched quark models predict the lowest $1/2^-$ $\Sigma^*$ resonance
to be above 1600 MeV, the unquenched quark models predict it to be around
$\Sigma^*(1385)$ energy. Here we re-examine some old data of the $\kp \to \la$
reaction and find that besides the well established $\Sigma^{*}(1385)$ with
$J^P=3/2^+$, there is indeed some evidence for the possible existence of a new
$\Sigma^{*}$ resonance with $J^P=1/2^-$ around the same mass but with broader
decay width. Higher statistic data on relevant reactions are needed to clarify
the situation.

9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas