Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possibly stable configurations of $\Theta^+_5$ in the flux-tube model   In this work, following the literature, we investigate the semi-classical
picture where various spatial configurations for $\Theta^+_5$ were suggested by
several authors. We use the flux tube model where the effective Column
coefficient and string tension are extracted from the lattice QCD calculations,
to obtain the interactions among the constituent quarks, which is later to be
taken as an effective potential. It is reasonable to assume that keeping the
simple spatial shape, only the breathing mode is considered, thus the whole
system is much simplified and described by only one variable. Substituting the
potential into the Schr\"odinger equation, we evaluate the binding energy of
the system. We find that each of the configuration has higher symmetries and
corresponds to a local minimum of energy and one of them results in a mass
which is smaller than the others. It is interesting to notice that with such a
very simplified semi-classical picture the minimal value corresponds to a mass
of 1530 to 1554 MeV for $\Theta^+_5$. The good agreement with the LEPS' data
may indicate that such simplified picture indeed reflects physical reality in
some sense.

24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys