Hanqing Zheng

activity

20012008

f_{0} (600)

meson a dynamically generated resonance? -- a lesson learned from the O(N) model and beyond

21 citations · 28 across the 4 of their papers we have counts for

collaborators

Showing 2004Show all

3 papers · 1 filter

hep-ph2004

Analyticity and Resonance Sum Rules 1n Large $N_{c}$ $π π$ Scatterings

Zhi-guang Xiao, Hanqing Zheng

This paper is withdrawn due to a mistake. The revised version with a new tiltle can be found in hep-ph/0502199.

hep-ph2004

Some Remarks on Exotic Resonances

Hanqing Zheng

Using large $N_{c}$ counting rule, it is argued that tetra-quark resonances do not exist. Also it is pointed out that there exists the violation of exchange degeneracy in the exotic…

hep-ph2004

The pole structure of the unitary, crossing symmetric low energy $π π$ scattering amplitudes

Z. Y. Zhou, G. Y. Qin, P. Zhang +3

The pole structure of the low energy $π π$ scattering amplitudes is studied using a proper chiral unitarization method combined with crossing symmetry and the low energy phase shift…

Analyticity and Resonance Sum Rules 1n Large Nc​ ππ Scatterings

Some Remarks on Exotic Resonances

The pole structure of the unitary, crossing symmetric low energy ππ scattering amplitudes

Analyticity and Resonance Sum Rules 1n Large $N_{c}$ $π π$ Scatterings

The pole structure of the unitary, crossing symmetric low energy $π π$ scattering amplitudes