Elastic scattering of antiprotons on protons at 5 GeV/c: evidence for a back-ward peak

Antiproton-proton elastic scattering has been measured at 5 GeV/c. A total of 30000 events were observed in the angular range 17 degrees < theta /sub cm/<136 degrees , corresponding to 0.3 <-t <7.7 (GeV/c/sup 2/). In addition to the known dip at -t = 0.5(GeV/c)/sup 2/, the authors observ...

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Detalles Bibliográficos
Autores principales: Chabaud, V, Baglin, C, Briandet, P, Carlson, Per J, Davier, M, Eide, A, Fleury, P, Gracco, Valerio, Johansson, E, Lehmann, P, Lundby, Arne, Morand, R, Mukhin, S, Myrheim, Jan, Treille, D
Lenguaje:eng
Publicado: 1972
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(72)90180-3
http://cds.cern.ch/record/875760
Descripción
Sumario:Antiproton-proton elastic scattering has been measured at 5 GeV/c. A total of 30000 events were observed in the angular range 17 degrees < theta /sub cm/<136 degrees , corresponding to 0.3 <-t <7.7 (GeV/c/sup 2/). In addition to the known dip at -t = 0.5(GeV/c)/sup 2/, the authors observe a structure at about -t=2(GeV/c)/sup 2/ and a backward peak with a slope 4.1 +or- 0.6 (GeV/c)/sup 2/. The extrapolated differential cross- section at u = 0 is 1.3 +or- 0.8 mu b/(GeV/c)/sup 2/. (13 refs).

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