Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Contributions of the kaon pair from $\rho(770)$ for the three-body
  decays $B \to D K\bar{K}$   We study the contributions of the kaon pair originating from the resonance
$\rho(770)$ for the three-body decays $B \to D K\bar{K}$ by employing the
perturbative QCD approach. According to the predictions in this work, the
contributions from the intermediate state $\rho(770)^0 $ are relatively small
for the three-body decays such as $B^0 \to \bar{D}^0 K^+ K^-$, $B_s^0 \to
\bar{D}^0 K^+ K^-$, and $B^+ \to D_s^+ K^+K^-$, while about $20\%$ of the total
three-body branching fraction for $B^+ \to \bar{D}^0 K^+ \bar{K}^0$ could
possibly come from the subprocess $\rho(770)^+\to K^+ \bar{K}^0$. We also
estimate the branching fractions for $\rho(770)^\pm$ decay into the kaon pair
to be about $1\%$, and that for the neutral $\rho(770)$ decay into $K^+K^-$ or
$K^0\bar{K}^0$ to be about $0.5\%$, which will be tested by future experiments.

26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin