Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hyperfine Anomaly of Be Isotopes and Anomalous Large Anomaly in
  $^{11}$Be   A new result of investigations of the hyperfine structure (hfs) anomaly in Be
isotopes is presented. The hfs constant for $^{11}$Be is obtained by using the
core plus neutron type wave function: $ |2s_{1\over 2}>+|1d_{5\over2}\times 2^+
; {1/2}^{+}> $. A large hfs anomaly of $^{11}$Be is found, which is mainly due
to a large radius of the halo single particle state.

14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci