Radiative decays of the J/ψ into γ $π^{+}$ $π^{-}$ and γ $K^{+}$ $K^{-}$

1 April 1987

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 35 (7) , 2077-2091
https://doi.org/10.1103/physrevd.35.2077

Abstract

The decays J/ψ→γ

π^{+}

π^{-}

and J/ψ→γ

K^{+}

K^{-}

, &<2.0 GeV/

c^{2}

, have been studied. Measurements are presented for B(ψ→γf(1270))B(f(1270)→

π^{+}

π^{-}

), B(ψ→γf(1270))B(f(1270)→

π^{+}

π^{-}

), B(ψ→γf’(1525))B(f’(1525)→

K^{+}

K^{-}

), and B(ψ→γtheta)B(theta(1270)→

K^{+}

K^{-}

). A higher-mass structure is observed in the

π^{+}

π^{-}

channel. The spin of the theta(1720) is established with high confidence. The polarization structure of the f(1270), f’(1525), and theta(1720) have been determined.

Keywords

This publication has 15 references indexed in Scilit:

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Radiative decays of the J/ψ into γπ+π− and γK+K−

Abstract

Keywords

Radiative decays of the J/ψ into γ $π^{+}$ $π^{-}$ and γ $K^{+}$ $K^{-}$