None
No description provided.
None
Measured value of the total E+ E- --> PI+ PI- cross section
None
RADIATIVE CORRECTIONS APPLIED.
None
Axis error includes +- 0.0/0.0 contribution (?////).
None
No description provided.
No description provided.
No description provided.
None
No description provided.
No description provided.
No description provided.
None
REID POTENTIAL AND SPECIAL PARAMETRIZATION FOR ELECTRIC FORMFACTOR OF NEUTRON HAVE BEEN USED.
REID POTENTIAL AND ELECTRIC FORMFACTOR OF NEUTRON EQUAL 0 HAVE BEEN USED.
PARIS POTENTIAL AND SPECIAL PARAMETRIZATION FOR ELECTRIC FORMFACTOR OF NEUTRON HAVE BEEN USED.
None
No description provided.
None
Axis error includes +- 2/2 contribution (Error in counter efficiency determination).
Electron momentum distribution.
Electron-positron pairs mass distribution.
The process γγ→π+π− was measured using the detector MD-1 at VEPP-4. The two-photon reactionse+e−, μ+ μ− and π+ π− pair production were separated using scintillation counters, Cherenkov counters and shower-range chambers. A radiation widthГγγ(f2(1270))=3.1±0.35±0.35 keV was obtained.
Data read from graph.