Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Indications for Large Rescattering in Rare B Decays   The sign of $A_{\rm CP}(K^-\pi^+) < 0$, the evidence for $\bar B^0 \to
\pi^0\pi^0$, and the possibly sizable $A_{\pi\pi}$ and $S_{\pi\pi}$ in $\bar
B^0 \to \pi^+\pi^-$ all suggest that final state rescattering may be needed in
$\bar B\to PP$ decay, which is echoed by large color suppressed $\bar B^0\to
D^0h^0$ modes. An SU(3) formalism of ${\bf 8}\otimes {\bf 8} \to {\bf 8}\otimes
{\bf 8}$ rescattering in $PP$ final states leads to interesting predictions, in
particular allowing for small $\bar B^0 \to K^-K^+$.

30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph