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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 Schrodinger 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.
In an earlier paper we developed a Parton Bubble Model (PBM) for RHIC/LHC, based on a substructure of a ring of localized bubbles which initially contain 3-4 partons of almost entirely gluons. A Glasma Flux Tube Model (GFTM) which formed longitudinal
We bootstrap the S-matrix of massless particles in unitary, relativistic two dimensional quantum field theories. We find that the low energy expansion of such S-matrices is strongly constrained by the existence of a UV completion. In the context of f
We consider correlator of two concentric Wilson loops, a small and large ones related to the problem of flux-tube formation. There are three mechanisms which can contribute to the connected correlator and yield different dependences on the radius of
We propose three different lattice operators to measure the intrinsic width xi_I of the chromoelectric flux tube in pure lattice gauge theories. In order to test these proposals we evaluate them for SU(2) and Ising LGTs in (2+1) dimensions in the vic
In this review, we discuss the present status of the description of confining flux tubes in SU(N) pure Yang-Mills theory in terms of ensembles of percolating center vortices. This is based on three main pillars: modelling in the continuum the ensembl