Revising the $f_1(1420)$ resonance

V. R. Debastiani, F. Aceti, Wei-Hong Liang +1

We have studied the production and decay of the $f_1(1285)$ into $\pi a_0(980)$ and $K^{\ast }\bar{K}$ as a function of the mass of the resonance and find a shoulder around 1400 MeV, tied t…