Study of the process e+e- arrow right pp- in the c.m. energy range from threshold to 2 GeV with the CMD-3 detector

Using a data sample of 7.7 pb super(-1)7.7 pb-1 collected with the CMD-3 detector at the VEPP-2000 e super(+)e super(-) collider we select about 2900 events of the process e super(+)e super(-) pi pp[macr] and measure its cross section at 12 energy points with about 6% systematic uncertainty. From th...

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Bibliographic Details
Published in:Physics letters. B 2016-08, Vol.759, p.634-640
Main Authors: Akhmetshina, R R, Amirkhanova, AN, Anisenkova, A V, Aulchenkoa, V M, Banzarova, VSh, Bashtovoya, N S, Berkaeva, DE, Bondara, A E, Bragina, A V, Eidelmana, SI, Epifanova, DA, Epshteyna, L B, Erofeeva, AL, Fedotovicha, G V, Gayazova, SE, Grebenuka, A A, Gribanova, S S, Grigorieva, D N, Gromova, E M, Ignatova, F V, Ivanova, V L, Karpova, S V, Kasaeva, A S, Kazanina, V F, Khazina, B I, Kirpotina, AN, Koopa, IA, Kovalenkoa, O A, Kozyreva, AN
Format: Article
Language:English
Subjects:
Angular distribution
Cross sections
Detectors
Elementary particles
Energy use
Lead (metal)
Nucleons
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Summary:Using a data sample of 7.7 pb super(-1)7.7 pb-1 collected with the CMD-3 detector at the VEPP-2000 e super(+)e super(-) collider we select about 2900 events of the process e super(+)e super(-) pi pp[macr] and measure its cross section at 12 energy points with about 6% systematic uncertainty. From the angular distribution of produced nucleons we obtain the ratio G sub(E)/G sub(M)GE/GM.
ISSN:0370-2693
DOI:10.1016/j.physletb.2016.04.048