Study of the process e+e−→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−1 collected with the CMD-3 detector at the VEPP-2000 e+e− collider we select about 2900 events of the process e+e−→pp¯ and measure its cross section at 12 energy points with about 6% systematic uncertainty. From the angular distribution of produced nucleons we obtain th...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physics letters. B 2016-08, Vol.759 (C), p.634-640
Hauptverfasser:	Akhmetshin, R.R., Amirkhanov, A.N., Anisenkov, A.V., Aulchenko, V.M., Banzarov, V.Sh, Bashtovoy, N.S., Berkaev, D.E., Bondar, A.E., Bragin, A.V., Eidelman, S.I., Epifanov, D.A., Epshteyn, L.B., Erofeev, A.L., Fedotovich, G.V., Gayazov, S.E., Grebenuk, A.A., Gribanov, S.S., Grigoriev, D.N., Gromov, E.M., Ignatov, F.V., Ivanov, V.L., Karpov, S.V., Kasaev, A.S., Kazanin, V.F., Khazin, B.I., Kirpotin, A.N., Koop, I.A., Kovalenko, O.A., Kozyrev, A.N., Kozyrev, E.A., Krokovny, P.P., Kuzmenko, A.E., Kuzmin, A.S., Logashenko, I.B., Lukin, P.A., Mikhailov, K.Yu, Okhapkin, V.S., Otboev, A.V., Pestov, Yu.N., Pivovarov, S.G., Popov, A.S., Razuvaev, G.P., Romanov, A.L., Ruban, A.A., Ryskulov, N.M., Ryzhenenkov, A.E., Shebalin, V.E., Shemyakin, D.N., Shwartz, B.A., Shwartz, D.B., Sibidanov, A.L., Shatunov, P.Yu, Shatunov, Yu.M., Solodov, E.P., Titov, V.M., Talyshev, A.A., Vorobiov, A.I., Yudin, Yu.V., Zharinov, Yu.M.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Using a data sample of 7.7 pb−1 collected with the CMD-3 detector at the VEPP-2000 e+e− collider we select about 2900 events of the process e+e−→pp¯ 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 GE/GM.
ISSN:	0370-2693 1873-2445
DOI:	10.1016/j.physletb.2016.04.048