Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New-Physics Signals in B -> pi pi Decays   This paper has been withdrawn by the authors, due to a mistake which
invalidates the analysis. One can never detect the presence of I=0 new physics
in B -> pi pi.

31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an