Study of double pomeron exchange in pp collisions at square root s=31 GeV

The reaction pp to pp pi /sup +/ pi /sup -/ s/sup 1/2/=31 GeV was studied at the Split Field Magnet Facility of the CERN-ISR. Selecting events with two leading protons of x>0.9 and a rapidity gap Delta y>2 between the protons and both pions a sample of 720 events is obtained representing a cro...

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Detalles Bibliográficos
Autores principales: Della Negra, Michel, Chesquière, C, Drijard, Daniel, Fischer, H G, Fontaine, G, Frehse, H, Frenkiel, P, Gokieli, R, Hanke, P, Hofmann, W, Isenbeck, W, Kluge, E E, Korbel, V, Linglin, D, Minten, Adolf G, Norton, A, Putzer, A, Sosnowski, R, Stein, S, Wegener, D
Lenguaje:eng
Publicado: 1976
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(76)90251-3
http://cds.cern.ch/record/873939
Descripción
Sumario:The reaction pp to pp pi /sup +/ pi /sup -/ s/sup 1/2/=31 GeV was studied at the Split Field Magnet Facility of the CERN-ISR. Selecting events with two leading protons of x>0.9 and a rapidity gap Delta y>2 between the protons and both pions a sample of 720 events is obtained representing a cross section of 25+or-10 mu b. The mass distribution of the dipion system, x and p/sub T/ distributions for the protons are presented and analyzed for the presence of double pomeron exchange. (6 refs).

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