| 主頁 > The cross section for the production of massive electron pairs and the Upsilon (9.5 GeV) in proton-proton collisions at the CERN ISR |
| Article | |
| Title | The cross section for the production of massive electron pairs and the Upsilon (9.5 GeV) in proton-proton collisions at the CERN ISR |
| Author(s) | Cobb, J H (Brookhaven) ; Fabjan, Christian Wolfgang (CERN) ; Fowler, E C (CERN ; Purdue U.) ; Goldberg, M (Syracuse U.) ; Horwitz, N (Syracuse U.) ; Iwata, S (Brookhaven ; Nagoya U.) ; Kourkoumelis, C (Yale U.) ; Lankford, A J (Yale U.) ; Mannelli, I (CERN ; INFN, Pisa ; Pisa U.) ; Moneti, G C (Syracuse U.) ; Mouzourakis, P (CERN) ; Nakamura, K (CERN ; Tokyo U.) ; Nappi, A (CERN ; INFN, Pisa ; Pisa U.) ; Palmer, R B (Brookhaven) ; Rahm, David Charles (Brookhaven) ; Rehak, P (Yale U. ; Brookhaven) ; Struczinski, W (CERN ; Aachen, Tech. Hochsch.) ; Stumer, I (Brookhaven) ; Willis, W J (CERN) |
| Affiliation | (Brookhaven Nat Lab, Upton, NY, USA) |
| Publication | 1977 |
| In: | Phys. Lett. B 72 (1977) 273-8 |
| DOI | 10.1016/0370-2693(77)90720-1 |
| Subject category | Particle Physics - Phenomenology |
| Abstract | 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). |