Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Global determination of two-meson distribution amplitudes from
  three-body $B$ decays in the perturbative QCD approach   We perform a global analysis of three-body charmless hadronic decays $B\to
VP_3\to P_1P_2P_3$ in the perturbative QCD (PQCD) approach, where $V$ denotes
an intermediate vector resonance, and $P_i$, $i=1,2,3$, denote final-state
pseudoscalar mesons. Fitting the PQCD factorization formulas at leading order
in the strong coupling $\alpha_s$ to measured branching ratios and direct $CP$
asymmetries, we determine the Gegenbauer moments in the two-meson distribution
amplitudes (DAs) for the meson pairs $P_1P_2=\pi\pi, K\pi, KK$. The fitted
Gegenbauer moments are then employed to make predictions for those observables,
whose data are excluded in the fit due to larger experimental uncertainties. A
general consistency between our predictions and data is achieved, which hints
the validity of the PQCD formalism for the above three-body $B$ meson decays
and the universality of the nonperturbative two-meson DAs. The obtained
two-meson DAs can be applied to PQCD studies of other multi-body $B$ meson
decays involving the same meson pairs. We also attempt to determine the
dependence of the Gegenbauer moments on the meson-pair invariant mass, and
demonstrate that this determination is promising, when data become more
precise.

3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph