TY  - JOUR
AU  - Debastiani, V. R.
AU  - Liang, W. H.
AU  - Xie, J. J.
AU  - Oset, E.
PY  - 2017
DA  - 2017//
TI  - Predictions for eta(c) -> eta pi(+)pi(-) producing f(0)(500), f(0)(980) and a(0)(980)
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 59
EP  - 64
VL  - 766
PB  - Elsevier Science Bv
KW  - Charmonium decays
KW  - Scalar meson states
KW  - Dynamically generated resonances
AB  - 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.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1609.09201
UR  - https://doi.org/10.1016/j.physletb.2016.12.054
DO  - 10.1016/j.physletb.2016.12.054
LA  - English
N1  - WOS:000427059300001
ID  - Debastiani_etal2017
ER  -