Vector meson-Baryon dynamics and generation of resonances

Abstract

The purpose of this work is to study vector meson-octet baryon interactions with the aim to find dynamical generation of resonances in such systems. For this, we consider s-, t-, u-channel diagrams along with a contact interaction originating from the hidden local symmetry Lagrangian. We find the contribution from all these sources, except the s-channel, to be important. The amplitudes obtained by solving coupled channel Bethe Salpeter equations for systems with total strangeness zero, show generation of one isospin 3/2, spin 1/2 resonance and three isospin 1/2 resonances: two with spin 3/2 and one with spin 1/2. We identify these resonances with $\Delta (1900)S_{31}$, $N^{\ast }(2080)D_{13}$, $N^{\ast }(1700)D_{13}$, and $N^{\ast }(2090)S_{11}$, respectively.

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• A study of the $KN$-$K^{\ast }N$ coupled systems
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• A case in favor of the $N^{\ast }(1700)(3/2^{-})$
• On the absorption and production cross sections of $K$ and $K^{\ast }$
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• The $D{\bar{D}}^{\ast }$ interaction with isospin zero in an extended hidden gauge symmetry approach
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• Production potential of hidden-strange molecular pentaquarks through the ${\pi }^{-}p\to K^{\ast }\Sigma$ process
• Exotic properties of N^*(1895) and its impact on photoproduction of light hyperons
• Medium modification of strange hadronic resonances at SIS, RHIC and LHC energies
• Vector- and Pseudoscalar-baryon coupled channel systems
• Effects of $\Lambda \Lambda -\Xi N$ mixing in the decay of $S=-2$ hypernuclei
• A Hidden Local Symmetry Approach to Rho Meson Photoproduction
• Nuclear medium effects on the ${\bar{K}}^{\ast }$ meson
• Strangeness and Charm in Nuclear Matter