Schreiner, P.
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Evidence for a Resonant Structure of the Hadron Production from e+ e- Annihilations in the 1700-MeV-1950-MeV Center-Of-Mass Energy Region

Ambrosio, M. ; Barbarino, G. ; Barbiellini, G. ; et al.
Phys.Lett.B 68 (1977) 397-401, 1977.
Inspire Record 119882 DOI 10.17182/hepdata.27553

We present experimental evidence for a resonant behaviour of the hadron production from e + e − annihilations at the e + e − storage ring ADONE. A Breit-Wigner fit to the enhancement present between 1800 and 1850 MeV gives the following parameters M = 1812 −13 +7 MeV, Γ = 34 −15 +21 MeV.

1 data table
Table 1

MULTIHADRON EVENTS (AT LEAST THREE CHARGED TRACKS) PER UNIT LUMINOSITY.