Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-06-02
Int.J.Mod.Phys.E18:1389-1403,2009
Physics
Nuclear Physics
Nuclear Theory
Lectures delivered at the Fourth DAE-BRNS workshop on Hadron Physics, Aligarh, India, Feb. 2008
Scientific paper
10.1142/S0218301309013610
In this talk I summarize recent findings around the description of axial vector mesons as dynamically generated states from the interaction of pseudoscalar mesons and vector mesons, dedicating some attention to the two $K_1(1270)$ states. Then I review the generation of open and hidden charm scalar and axial states, and how some recent experiment supports the existence of the new hidden charm scalar state predicted. I present recent results showing that the low lying $1/2^+$ baryon resonances for S=-1 can be obtained as bound states or resonances of two mesons and one baryon in coupled channels. Then show the differences with the S=0 case, where the $N^*(1710)$ appears also dynamically generated from the two pion one nucleon system, but the $N^*(1440)$ does not appear, indicating a more complex structure of the Roper resonance. Finally I shall show how the state X(2175), recently discovered at BABAR and BES, appears naturally as a resonance of the $\phi K \bar{K}$ system.
Gamermann Daniel
Geng Li Sheng
Khemchandani K. P.
Napsuciale Mauro
Oller Jose Antonio
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