Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Testing for new physics in singly Cabibbo suppressed D decays   We devise tests for a new physics origin of the recently measured direct CP
violation in singly Cabibbo suppressed D decays. The tests take the form of sum
rules for the CP asymmetries in various D decays. They are based on the fact
that within the standard model CP violation arises from interference of the
dominant tree amplitudes with the Delta I=1/2 penguin amplitudes. The sum rules
would be violated if the observed CP violation is due to new physics
contributions to the effective weak Hamiltonian that change isospin by Delta
I=3/2.

15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga