324 research outputs found

    Study of the process e+eβˆ’β†’ppΛ‰e^+e^-\to p\bar{p} in the c.m. energy range from threshold to 2 GeV with the CMD-3 detector

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    Using a data sample of 6.8 pbβˆ’1^{-1} collected with the CMD-3 detector at the VEPP-2000 e+eβˆ’e^+e^- collider we select about 2700 events of the e+eβˆ’β†’ppΛ‰e^+e^- \to p\bar{p} process and measure its cross section at 12 energy ponts with about 6\% systematic uncertainty. From the angular distribution of produced nucleons we obtain the ratio ∣GE/GM∣=1.49Β±0.23Β±0.30|G_{E}/G_{M}| = 1.49 \pm 0.23 \pm 0.30
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