Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Leptonic decays of D_s and B^+ mesons in supersymmetric standard model
  with R-parity violating interactions   We investigate leptonic decays $D_s \to \tau \nu_\tau$ and $B^+ \to \tau
\nu_\tau$ in R-parity violating (RPV) supersymmetric standard model. Taking
account of interference between the s-channel slepton exchange and the
$t$-channel squark exchange diagrams, we find that the supersymmetric
contributions are cancelled between two diagrams so that the RPV couplings
could be sizable under the experimental bounds. Constraints on the relative
sign between the RPV couplings in $s$- and $t$-channel diagrams are also
discussed.

17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat