%0 Journal Article
%T A Study of rho-omega Mixing in Resonance Chiral Theory
%A Chen, Y. H.
%A Yao, D. L.
%A Zheng, H. Q.
%J Communications in Theoretical Physics
%D 2018
%V 69
%N 1
%I Iop Publishing Ltd
%@ 0253-6102
%G English
%F Chen_etal2018
%O WOS:000422832600010
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3453), last updated on Mon, 29 Jan 2018 13:04:35 +0000
%X The strong and electromagnetic corrections to rho-omega mixing are calculated using an SU(2) version of resonance chiral theory up to next-to-leading orders in 1/N-C expansion, respectively. Up to our accuracy, the effect of the momentum dependence of rho-omega mixing is incorporated due to the inclusion of loop contributions. We analyze the impact of rho-omega mixing on the pion vector form factor by performing numerical fit to the data extracted from e(+)e(-) -> pi(+)pi(-) and tau -> nu(tau)2 pi, while the decay width of omega -> pi(+)pi(-) is taken into account as a constraint. It is found that the momentum dependence is significant in a good description of the experimental data. In addition, based on the fitted values of the involved parameters, we analyze the decay width of omega -> pi(+)pi(-), which turns out to be highly dominated by the rho-omega mixing effect.
%K Chiral Lagrangians
%K vector mesons
%K 1/N-C expansion
%R 10.1088/0253-6102/69/1/50
%U http://arxiv.org/abs/1710.11448
%U https://doi.org/10.1088/0253-6102/69/1/50
%P 50-58