%0 Journal Article
%T f(1)(1285) decays into a(0)(980) pi(0), f(0)(980) pi(0) and isospin breaking
%A Aceti, F.
%A Dias, J. M.
%A Oset, E.
%J European Physical Journal A
%D 2015
%V 51
%N 4
%I Springer
%@ 1434-6001
%G English
%F Aceti_etal2015
%O WOS:000353789000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2216), last updated on Thu, 21 May 2015 14:19:01 +0000
%X We evaluate the decay width for the processes f1(1285). p 0 a0(980) and f1(1285). p 0 f0(980) taking into account that all three resonances are dynamically generated from the meson- meson interaction, the f1(1285) from K* _ K – c. c. and the a0(980), f0(980) from p., K _ K and pp, K _ K, respectively. We use a triangular mechanism similar to that of.(1405). pp., which provides a decay width for f1(1285). p 0 a0(980) with a branching fraction of the order of 30%, in agreement with experiment. At the same time we evaluate the decay width for the isospin- forbidden f1(1285). p 0 f0(980), which appears when we consider different masses for the charged and neutral kaons, and show that it is much more suppressed than in the.(1405). pp. case, but gives rise to a narrow shape of the p + p- distribution similar to the one found in the eta(1405) -> pi pi eta decay.
%R 10.1140/epja/i2015-15048-5
%U http://arxiv.org/abs/1501.06505
%U https://doi.org/10.1140/epja/i2015-15048-5
%P 48-8pp