Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Light-Front Quark Model Analysis of Electroweak Decays of Pseudoscalar
  and Vector Mesons   We investigate the electroweak form factors and semileptonic decay rates of
pseudoscalar and vector mesons using the light-front constituent quark model.
Our method of analytic continuation in the Drell-Yan-West (q^+=q^0+q^3=0) frame
to obtain the weak form factors avoids the difficulty associated with the
contributions from the nonvalence quark-antiquark pair creation. This method
seems to provide a promising step forward to handle the exclusive processes in
the timelike region. Our calculation reveals that the zero mode contribution is
crucial to obtaining the correct values of the light-front current J^{-} in the
q^+=0 frame. Our numerical results are overall in a very good agreement with
the available exprimental data.

8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th