Observation of a Resonance at 4.4 GeV and Additional Structure near 4.1 GeV in $e^{+} e^{-}$ Annihilation

Authors:

JSJ. Siegrist
J. Siegrist
GAG. S. Abrams
G. S. Abrams
ABA. M. Boyarski
A. M. Boyarski
MBM. Breidenbach
M. Breidenbach
FBF. Bulos
F. Bulos
WCW. Chinowsky
W. Chinowsky
GFG. J. Feldman
G. J. Feldman
CFC. E. Friedberg
C. E. Friedberg
DFD. Fryberger
D. Fryberger
GGG. Goldhaber
G. Goldhaber
GHG. Hanson
G. Hanson
DHD. L. Hartill
D. L. Hartill

Publisher website

29 March 1976

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

Vol. 36 (13) , 700-703
DOI:10.1103/physrevlett.36.700

Abstract

We observe a resonancelike structure in the total cross section for hadron production by

e^{+} e^{-}

colliding beams at a mass of 4414 ± 7 MeV having a total width

Γ = 33 \pm 10

MeV. From the area under this resonance, we deduce the partial width to electron pairs to be

Γ_{ee} = 440 \pm 140

eV. Further structure of comparable width is present near 4.1 GeV.

Keywords

This publication has 6 references indexed in Scilit:

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Physical Review Letters, 1975
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