Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two Body Hadronic Decays $\Lambda_{b}(\frac{1}{2}^{+})\rightarrow
  B^{\ast}(\frac{3}{2}^{+})+P$ in a quark model   The framework under which decays $\Lambda_{b}(\frac{1}{2}^{+})\rightarrow
B(\frac{1}{2}^{+})+M$ are analyzed is not applicable for the decays
$\Lambda_{b}(\frac{1}{2}^{+})\rightarrow B^{\ast}(\frac{3}{2} ^{+})+M$. These
decays occur through a baryon pole $\Sigma^{0}_{c}$ which is generated by the
W-exchange diagram in the process $b+u \xrightarrow {W} c+d$. The effective
Hamiltonian which arises from the W-exchange diagram is expressed in the non
relativistic limit. Since $% \Sigma^{0}_{c}$ belongs to representation $6$ of
SU(3), it contributes to two sets of decays:
$\Lambda_{b}\rightarrow\Delta^{0}D^{0},\Delta^{-}D^{+},% \Sigma^{*-}D_s^{+}$
and $\Lambda_{b}\rightarrow\Sigma^{\ast-}_{c}\pi^{+},%
  \Sigma^{\ast 0}_{c}\pi^{0}\;, \Xi^{\ast 0}_{c}K^{0}$. The branching ratios
for these decays are evaluated which can be compared with their experimental
values when the data become available. Other prediction of the model is that
asymmetry parameter $\alpha = 0$, since baryon pole contributes to parity
conserving (p-wave) amplitude and does not contribute to parity violating
(d-wave) amplitude.

19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th