Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A New Mechanism for $B^{\pm}\to \eta'K^{\pm}$ in Perturbative QCD   We present a new mechanism for $B^{\pm}\to \eta' K^{\pm}$, and analyze it
strictly within perturbative QCD. We find that such a new mechanism may
dominate non-leptonic $B$-decays to light mesons. Within a reasonable parameter
space, our prediction is in good agreement with the recent CLEO data on
$B^{\pm}\to \eta' K^{\pm}$. We conclude that there is no room for an abnormally
large \bsg vertex from physics beyond the Standard Model.

23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math