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Ratio of isolated photon cross sections in p(p)over-bar collisions at root s=630 and 1800 GeV
Baringer, Philip S. Bean, Alice Coppage, Don Hebert, C.
Baringer, Philip S.
Bean, Alice
Coppage, Don
Hebert, C.
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Abstract
The inclusive cross section for production of isolated photons has been measured in p (p) over bar collisions at roots = 630 GeV with the DO detector at the Fermilab Tevatron Collider. The photons span a transverse energy (E-T) range from 7-49 GeV and have pseudorapidity \eta\ < 2.5. This measurement is combined with the previous D0 result at <root>s = 1800 GeV to form a ratio of the cross sections. Comparison of next-to-leading-order QCD with the measured cross section at 630 GeV and the ratio of cross sections show satisfactory agreement in most of the E-T range.
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2001-12
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AMERICAN PHYSICAL SOC
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e251805.pdf
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Abazov, VM; Abbott, B, et al. Ratio of isolated photon cross sections in p(p)over-bar collisions at root s=630 and 1800 GeV. PHYSICAL REVIEW LETTERS. December 2001. 87(25)