%0 Journal Article
%T The small K pi component in the K* wave functions
%A Xiao, C. W.
%A Aceti, F.
%A Bayar, M.
%J European Physical Journal A
%D 2013
%V 49
%N 2
%I Springer
%@ 1434-6001
%G English
%F Xiao_etal2013
%O WOS:000315601600006
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1359), last updated on Fri, 05 Apr 2013 20:37:35 +0000
%X We use a recently developed formalism which generalizes Weinberg's compositeness condition to partial waves higher than s-wave in order to determine the probability of having a K pi component in the K* wave function. A fit is made to the K pi phase shifts in p-wave, from where the coupling of K* to K pi and the K pi loop function are determined. These ingredients allow us to determine that the K* is a genuine state, different from a K pi component, in a proportion of about 80%.
%R 10.1140/epja/i2013-13022-y
%U http://arxiv.org/abs/arXiv:1210.7176
%U https://doi.org/10.1140/epja/i2013-13022-y
%P 22-5pp