Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-10-11
Phys.Lett.B661:342-347,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages
Scientific paper
10.1016/j.physletb.2008.01.073
Continuing our previous work(JHEP 0706:030,2007), large--$N_C$ techniques and
partial wave dispersion relations are used to discuss $\pi\pi$ scattering
amplitudes. We get a set of predictions for $O(p^6)$ low-energy chiral
perturbation theory couplings. They are provided in terms of the masses and
decay widths of scalar and vector mesons.
Guo Zhi-Hui
Sanz-Cillero Juan Jose
Zheng H. Q.
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