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Measurement of the cross section for prompt diphoton production in pp collisions at square root of s=1.96 TeV |
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| Authors: | Acosta D Adelman J Affolder T Akimoto T Albrow M G Ambrose D Amerio S Amidei D Anastassov A Anikeev K Annovi A Antos J Aoki M Apollinari G Arisawa T Arguin J-F Artikov A Ashmanskas W Attal A Azfar F Azzi-Bacchetta P Bacchetta N Bachacou H Badgett W Barbaro-Galtieri A Barker G J Barnes V E Barnett B A Baroiant S Barone M Bauer G Bedeschi F Behari S Belforte S Bellettini G Bellinger J Ben-Haim E Benjamin D Beretvas A Bhatti A Binkley M Bisello D Bishai M Blair R E Blocker C Bloom K Blumenfeld B Bocci A Bodek A Bolla G Bolshov A Booth P S L Bortoletto D Boudreau J Bourov S Brau B Bromberg C |
| Institution: | University of Florida, Gainesville, Florida 32611, USA. |
| Abstract: | We report a measurement of the rate of prompt diphoton production in pp collisions at square root of s=1.96 TeV using a data sample of 207 pb(-1) collected with the upgraded Collider Detector at Fermilab. The background from nonprompt sources is determined using a statistical method based on differences in the electromagnetic showers. The cross section is measured as a function of the diphoton mass, the transverse momentum of the diphoton system, and the azimuthal angle between the two photons and is found to be consistent with perturbative QCD predictions. |
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