Wolf, A.R.
SIG/SIG
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Test of {QED} in $e^+ e^-$ Annihilation at Energies Between 12-{GeV} and 31.6-{GeV}

The TASSO collaboration Brandelik, R. ; Braunschweig, W. ; Gather, K. ; et al.
Phys.Lett.B 94 (1980) 259-265, 1980.
Inspire Record 153127 DOI 10.17182/hepdata.45228

We have measured the reactions e + e − → e + e − → μ + μ − and e + e − → γγ at c.m. energies between 12 and 31.6 GeV. Excellent agreement with the predictions of QED has been found, resulting in cut off parameters Λ + > 112 GeV and Λ − > 139 GeV for the first process and Λ + > 34 GeV and Λ − > 42 GeV (95% c.1.) for the last one. A limit on the Weinberg angle of sin 2 θ W < 0.55 (95% c.1.) has been obtained.

3 data tables
Table 1

SIG(C=QED) QED predictions for the cross sections. Only statistical errors are given.

Table 2

SIG(C=QED) QED predictions for the cross sections. Only statistical errors are given.

Table 3

SIG(C=QED) QED predictions for the cross sections. Only statistical errors are given.


Electroproduction of rho0 mesons at 1.5 > q-squared > 0.3 gev-squared and 2.8 > w > 1.7 gev

Eckardt, V. ; Gebauer, H.J. ; Joos, P. ; et al.
Phys.Lett.B 43 (1973) 240-244, 1973.
Inspire Record 84944 DOI 10.17182/hepdata.28153

Production and decay characteristics of electroproduced rho mesons were studied in the final state epπ + π − .

1 data table
Table 1

No description provided.