Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Improved measurements of $D_s$ meson decay constant and branching
  fractions of $D_s^+\to K^-K^+\pi^+$, $\bar{K}{}^0K^+$ and $\eta\pi^+$ decays
  from Belle   We present preliminary absolute branching fraction measurements of leptonic
$D_s^+$ decays to $\mu^+\nu_{\mu}$ and $\tau^+\nu_{\tau}$, and of hadronic
$D_s^+$ decays to $K^-K^+\pi^+$, $\bar{K}{}^0K^+$ and $\eta\pi^+$. The results
are obtained from a large data sample collected near the $\Upsilon(4S)$ and
$\Upsilon(5S)$ resonances with the Belle detector at the KEKB asymmetric-energy
$e^+e^-$ collider. We obtain the the branching fractions ${\cal
B}(D_s^+\to\mu^+\nu_{\mu})=(0.528\pm0.028\pm0.019)%$ and ${\cal
B}(D_s^+\to\tau^+\nu_{\tau})=(5.70\pm0.21{}^{+0.31}_{-0.30})%$ which are
combined to determine the $D_s$ decay constant $\fds=(255.0\pm4.2\pm5.0)$ MeV,
where the first and second uncertainties are statistical and systematic,
respectively. Branching fractions of hadronic decays are measured to be ${\cal
B}(D_s^+\to K^-K^+\pi^+)=(5.06 \pm 0.15\pm 0.19)%$, ${\cal
B}(D_s^+\to\bar{K}{}^0K^+)=(2.84 \pm 0.12\pm 0.08)%$ and ${\cal
B}(D_s^+\to\eta\pi^+)=(1.79\pm0.14\pm 0.05)%$.

22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat