Preliminary results on the determination of the position and shape of the ϱ-meson resonance with electron-positron colliding beams are presented.
FITTED PEAK CROSS SECTION IS 1.2 +- 0.2 MUB.
Measured value of the pion form factor
Fitted peak cross section.
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The complete results of the experiments carried out with the Neutral Detector at the e + e − storage ring VEPP-2M in the energy range 2 E =0.5–1.4 GeV are reviewed. The data sample corresponds to a total integrated luminosity of 19 pb −1 .
ND results from Dolinsky et al., PL B174 (1986) 453.. Statistical errors only are shown. There is an additional systematic errorof 8%.
New ND data.. Statistical errors only are shown. There is an additional systematic errorof 8%.
Averaged ND data.. Statistical errors only are shown. There is an additional systematic errorof 8%.
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Axis error includes +- 0.0/0.0 contribution (?////NOT GIVEN).
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Axis error includes +- 0.0/0.0 contribution (?////).
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