Further study of the E/f1 (1420) meson in central production

Authors :: Armstrong, T.A. Benayoun, M. Bloodworth, I.J. Carney, J.N. Dodenhoff, C.J. Evangelista, C. French, B.R. Ghidini, B. Girone, M. Jacholkowski, A. Kahane, J. Kinson, J.B. Kirk, A. Knudson, K. Lenti, V. Leruste, Ph. Malamant, A. Narjoux, J.L. Navach, F. Palano, A. Redaelli, N. Rossi, L. Sené, M. Sené, R. Stassinaki, M. Vassiliadis, G. Villalobos Baillie, O. Votruba, M.F. Zito, G.
Publication Year :: 1992
Abstract: We have studied the reactions {Mathematical expression} where the {Mathematical expression} system is centrally produced, at 85 GeV/c and 300 GeV/c using the CERN Omega spectrometer. A spin-parity analysis of the KS0K±π∓ system shows the presence of a strong JPC=1++ signal which we identify as the E/f1 (1420) meson. We also find evidence for the decay E/f1(1420)→KS0KS0π0 which determines the C-parity of this state to be positive. Alternative explanations of the data have been tested and ruled out. Hence we obtain the quantum numbers of the E/f1 (1420) to be IG(JPC)=0+(1+). © 1992 Springer-Verlag.