Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An analysis of B_{d,s} mixing angles in presence of New Physics and an
  update of Bs -> K0* anti-K0*   We discuss a simple approach to measure the weak mixing angles phi_s and
phi_d of the Bs and Bd systems in the presence of New Physics. We present a new
expression that allows one to measure directly the New Physics mixing angles if
New Physics contributes significantly to the mixing only. We apply the method
to specific penguin-mediated B->PP, B->PV and B ->VV modes. We provide a very
stringent and simple bound on the direct CP asymmetries of all these modes, the
violation of which is a signal of New Physics in decay. Within the same
theoretical framework, an updated prediction for the branching ratio of Bs->K0*
anti-K0* is presented, which can be compared with a recent LHCb analysis.

10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org