Isolated photon cross section in p&pmacr; collisions at radicals = 1. 8 TeV |
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| Authors: | Snyder Solomon Song Sorin Sosebee Sotnikova Souza Stanton Steinbruck Stephens Stevenson Stichelbaut Stoker Stolin Stoyanova Strauss Streets Strovink Stutte Sznajder Tarazi Tartaglia Thomas Thompson Toback Trippe |
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| Institution: | New York University, New York, New York 10003, USA. |
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| Abstract: | We report a new measurement of the cross section for the production of isolated photons with transverse energies ( E(gamma)(T)) above 10 GeV and pseudorapidities |eta|<2.5 in p&pmacr; collisions at sqrts] = 1.8 TeV. The results are based on a data sample of 107.6 pb(-1) recorded during 1992-1995 with the D0 detector at the Fermilab Tevatron collider. The background, predominantly from jets which fragment to neutral mesons, was estimated using the longitudinal shower shape of photon candidates in the calorimeter. The measured cross section is in good agreement with the next-to-leading order QCD calculation for E(gamma)(T) greater, similar36 GeV. |
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