Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of Two Narrow States Decaying into $\Xi_{c}^{+}\gamma$ and
  $\Xi_{c}^{0}\gamma$   We report the first observation of two narrow charmed strange baryons
decaying to $\Xi_c^+\gamma$ and $\Xi_c^0\gamma$, respectively, using data from
the CLEO II detector at CESR. We interpret the observed signals as the
$\Xi_c^{+\prime}(c{su})$ and $\Xi_c^{0\prime}(c{sd})$, the symmetric partners
of the well-established antisymmetric $\Xi_c^+(c[su])$ and $\Xi_c^0(c[sd])$.
The mass differences $M(\Xi_c^{+\prime})-M(\Xi_c^+)$ and
$M(\Xi_c^{0\prime})-M(\Xi_c^0)$ are measured to be $107.8\pm 1.7\pm 2.5$ and
$107.0\pm 1.4\pm 2.5 MeV/c^2$, respectively.

16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg