Production of γ by 194 GeV/c negative pions on tungsten |
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| Authors: | S Falciano M Grossmann M Guanziroli H Hofer P Lecomte P Le Coultre H Suter VL Telegdi G Viertel B Betev K Freudenreich J Wallace-Hadrill A Ereditato E Gorini P Strolin P Bordalo A Boumediene M Winter |
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| Institution: | ETH, Zurich, Switzerland;CERN, Geneva, Switzerland;Università di Napoli and INFN Sezione di Napoli, Naples, Italy;Ecole Polytechnique, Palaiseau, France |
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| Abstract: | On the basis of 2000 ?, ?′ and ?″ events obtained in π?-W interactions at 194 GeV/c we extract a value for the cross section times the branching ratio of Bμμσ = (0.96±0.04±0.17) pb nucleon?1. The ratio is found to be 0.53 ± 0.19. The observed differential xF and PT distributions are compared with those of the Drell-Yan continuum, and the cross section and the xF distribution are compared with theoretical predictions. |
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| Keywords: | NA 10 Collaboration |
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