%0 Journal Article
%T Predictions for eta(c) -> eta pi(+)pi(-) producing f(0)(500), f(0)(980) and a(0)(980)
%A Debastiani, V. R.
%A Liang, W. H.
%A Xie, J. J.
%A Oset, E.
%J Physics Letters B
%D 2017
%V 766
%I Elsevier Science Bv
%@ 0370-2693
%G English
%F Debastiani_etal2017
%O WOS:000427059300001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3513), last updated on Mon, 26 Mar 2018 10:50:03 +0000
%X We perform calculations for the eta(c) -> eta pi(+)pi(-) decay using elements of SU(3) symmetry to see the weight of different trios of pseudoscalars produced in this decay, prior to the final state interaction of the mesons. After that, the interaction of pairs of mesons, leading finally to eta pi(+)pi(-), is done using the chiral unitary approach. We evaluate the pi(+)pi(-) and pi eta mass distributions and find large and clear signals for f(0)(500), f(0)(980) and a(0)(980) excitation. The reaction is similar to the chi(c1) -> eta pi(+)pi(-), which has been recently measured at BESIII and its implementation and comparison with these predictions will be very valuable to shed light on the nature of the low mass scalar mesons.
%K Charmonium decays
%K Scalar meson states
%K Dynamically generated resonances
%R 10.1016/j.physletb.2016.12.054
%U http://arxiv.org/abs/1609.09201
%U https://doi.org/10.1016/j.physletb.2016.12.054
%P 59-64