Scharre, DL; Trilling, GH; Abrams, GS; Alam, MS; Blocker, CA; Blondel, A; Boyarski, AM; Breidenbach, M; Burke, DL; Carithers, WC; Chinowsky, W; Coles, MW; Cooper, S; Dieterle, WE; Dillon, JB; Dorenbosch, J; Dorfan, JM; Eaton, MW; Feldman, GJ; Franklin, MEB; Gidal, G; Goldhaber, G; Hanson, G; Hayes, KG; Himel, T; Hitlin, DG; Hollebeek, RJ; Innes, WR; Jaros, JA; Jenni, P; Johnson, AD; Kadyk, JA; Lankford, AJ; Larsen, RR; Lüth, V; Millikan, RE; Nelson, ME; Pang, CY; Patrick, JF; Perl, ML; Richter, B; Roussarie, A; Schindler, RH; Schwitters, RF; Siegrist, JL; Strait, J; Taureg, H; Tonutti, M; Vella, EN; Vidal, RA; Videau, I; Weiss, JM; Zaccone, H

doi:10.1016/0370-2693(80)90612-7

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Observation of the radiative transition ψ → γE(1420)

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https://doi.org/10.1016/0370-2693(80)90612-7

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Abstract

We have observed a radiative transition from the ψ to a state decaying into KSK±π∓, with mass M = 1.44-0.015+0.01 GeV/c2 and width Γ = 0.05-0.02+0.03 GeV/c2. We tentatively identify this state as the E(1420). Assuming that this state is an isospin singlet, we have determined the branching fraction product B(ψ → γE) × B(E × KKπ) = (3.6 ± 1.4) × 10-3. © 1980.

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Observation of the radiative transition ψ → γE(1420)

Published Web Location