TY  - JOUR
AU  - Lin, J. X.
AU  - Li, J. T.
AU  - Jiang, S. J.
AU  - Liang, W. H.
AU  - Oset, E.
PY  - 2021
DA  - 2021//
TI  - The D-s(+) -> a(0)(980)e(+)nu(e) reaction and the a(0)(980) – f(0)(980) mixing
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 1017
EP  - 8pp
VL  - 81
IS  - 11
PB  - Springer
AB  - We perform a study of the D-s(+) -> a(0)(980) (f(0)(980))e(+)nu(e) reactions investigating the different sources of isospin violation which make the production of the a0(980) possible. We find that loops involving kaons in the production mechanism provide a source of isospin violation since they do not cancel due to the different mass of charged and neutral kaons, but we also find that the main source comes from the breaking of isospin in the meson-meson transition T matrices, which contain information on the nature of the low lying scalar mesons. The reaction is thus very sensitive to the nature of the a(0)(980) and f(0)(980) resonances. Our results are consistent with the present upper bound for a(0)(980) production and only a factor three smaller, indicating that future runs with more statistics should find actual numbers for this reaction from where we can learn more about the origin of the scalar resonances and their nature.
SN  - 1434-6044
UR  - https://arxiv.org/abs/2109.08405
UR  - https://doi.org/10.1140/epjc/s10052-021-09820-3
DO  - 10.1140/epjc/s10052-021-09820-3
LA  - English
N1  - WOS:000720719400001
ID  - Lin_etal2021
ER  -