$ψ (3684)$ Radiative Decays to High-Mass States

Authors:

GFG. J. Feldman
G. J. Feldman
BJB. Jean-Marie
B. Jean-Marie
BSB. Sadoulet
B. Sadoulet
FVF. Vannucci
F. Vannucci
GAG. S. Abrams
G. S. Abrams
ABA. M. Boyarski
A. M. Boyarski
MBM. Breidenbach
M. Breidenbach
FBF. Bulos
F. Bulos
WCW. Chinowsky
W. Chinowsky
CFC. E. Friedberg
C. E. Friedberg
GGG. Goldhaber
G. Goldhaber
GHG. Hanson
G. Hanson

Publisher website

29 September 1975

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

Vol. 35 (13) , 821-824
DOI:10.1103/physrevlett.35.821

Abstract

We present experimental evidence for the existence of the decay

ψ (3684) \to γ χ

,

χ \to 4 π^{\pm}, 6 π^{\pm}, π^{+} π^{-} K^{+} K^{-}, π^{+} π^{-}, and K^{+} K^{-}

. There is clear evidence for at least two

χ

states, one at 3.41 ± 0.01 GeV/

c^{2}

and the other at 3.53±0.02 GeV/

c^{2}

. The

χ (3410)

decays into

π π

and

KK

and thus must have even spin and parity.

Keywords

This publication has 8 references indexed in Scilit:

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Physical Review Letters, 1975
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