Abstract
We discuss the theoretical predictions of some di-mesonic (meson-anti meson) states and compare with some prominent experimental candidates. The masses of several di-mesonic states are computed in semi relativistic approach. The two photon decay width is calculated using the wave function at the origin. The states such as f 0(980), a0(980), b1(1235), h1(1380), f 0(1500), f 2(1525), f 2(1565), f 0(1710), f 2(1810), h1(1830) are identified as di-mesonic states.
Highlights
The world wide experimental facilities like BES, Belle, BaBar, CLEO have provided the new data in the field of hadron physics especially in the light quark sector [1,2,3,4]
The states which do not fit in qq and qqq pattern predicted by standard model is known as exotic states
The QCD predicts more complicated multiquark states and gives opportunities and challenges to theorists as well as experimentalist to explain the internal mechanism of these novel exotic states
Summary
The world wide experimental facilities like BES, Belle, BaBar, CLEO have provided the new data (states) in the field of hadron physics especially in the light quark sector [1,2,3,4]. These new states are light flavor mesons and baryons but demands new explanation like tetra quark, pentaquark, hexaquark or molecular like descriptions while some of states are having more complex structure. We present our results and discussion in section - 4
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