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Production of high transverse momentum prompt photons and neutral pions in proton-proton interactions at 280 GeV/c |
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| Authors: | M Bonesini E Bonvin P S L Booth L J Carroll A J Cass D Cavalli G Cecchet G Costa M Donnat P A Dorsaz D N Edwards J R Fischer L Fluri D Frame F Gianotti S Jack J N Jackson M Kelly M N Kienzle-Focacci R Lucock J G Lynch L Mandelli M Martin L Mathys A Maxwell M Mazzanti J J Myerscough P J Negus S Pensotti-Rancoita L Perini D Perrin G Polesello W H Range L Rosselet S W Snow A S Thompson R M Turnbull J Wells M Werlen WA Collaboration |
| Institution: | 1. Dipartimento di Fiscia dell'Università e Sezione INFN Milano, I-20133, Milano, Italy 2. University of Neuchatel, CH-2000, Neuchatel, Switzerland 3. Department of Physics, University of Liverpool, L69, 3 BX, Liverpool, UK 4. D.P.N.C., University of Geneva, CH-1211, Geneve, Switzerland 5. Department of Physics and Astronomy, University of Glasgow, G 12, 8 QQ, Glasgow, UK 6. CERN, CH-1211, Geneve 23, Switzerland |
| Abstract: | The inclusive cross sections for production of prompt photons and π0 s by 280 GeV/c protons incident on a liquid hydrogen target, have been measured forp T in the range 4.0 to 6.5 GeV/c and for |x F |<0.45. A quantitative comparison of the prompt photon cross section with next-to-leading order QCD predictions using Duke and Owens structure functions is performed. Phenomenological fits to the π0 and prompt photon cross sections are given. |
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