The cross section for the production of massive electron pairs and the Upsilon (9.5 GeV) in proton-proton collisions at the CERN ISR

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Measurements of the cross section for the production of electron pairs with invariant masses between 4 and 8.7 GeV are presented as a function of the centre-of-mass energy ( square root s=28 to square root s=62 GeV) of the colliding proton beams. A significant excess of events is observed in the reg...

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Detalles Bibliográficos
Autores principales: Cobb, J H, Fabjan, Christian Wolfgang, Fowler, E C, Goldberg, M, Horwitz, N, Iwata, S, Kourkoumelis, C, Lankford, A J, Mannelli, I, Moneti, G C, Mouzourakis, P, Nakamura, K, Nappi, A, Palmer, R B, Rahm, David Charles, Rehak, P, Struczinski, W, Stumer, I, Willis, W J
Lenguaje:eng
Publicado: 1977
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(77)90720-1
http://cds.cern.ch/record/878482
Descripción
Sumario:Measurements of the cross section for the production of electron pairs with invariant masses between 4 and 8.7 GeV are presented as a function of the centre-of-mass energy ( square root s=28 to square root s=62 GeV) of the colliding proton beams. A significant excess of events is observed in the region 8.7 to 10.3 GeV; these are ascribed to the Upsilon (9.5 GeV) resonances and estimates of the production cross sections are given. (6 refs).

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