High transverse momentum prompt photon production by ?? and ?+ on protons at 280 GeV/c

• DOI: 10.1007/bf01549712
• Publication Date: 2005-04-21T05:51:31Z
• Authors: M. Bonesini; E. Bonvin; P. S. L. Bo�th; D. Bortoletto; L. J. Carroll; A. J. Cass; D. Cavalli; 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-Foc...; 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; M. Tamborini; A. S. Thompson; R. M. Turnbull; J. Wells; M. Werlen
• Keywords: 0103 physical sciences; 01 natural sciences; 7. Clean energy

The inclusive cross sections for prompt photon production by π− and π+ on protons have been measured with a beam momentum of 280 GeV/c using a fine grained electromagnetic calorimeter and the CERN Omega spectrometer. The transverse momentum and FeynmanxF ranges covered are 4.0<pT<7.0GeV/c and −0.45<xF<0.55 respectively. A quantitative comparison of the prompt photon cross section with next-to-leading order QCD predictions using Duke and Owens structure functions is performed.