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We report a measurement of the ratio of the bottom quark production cross section in antiproton-proton collisions at roots=630 GeV to 1800 GeV using bottom quarks with transverse momenta greater than 10.75 GeV identified through their semileptonic decays and long lifetimes. The measured ratio sigma(630)/sigma(1800)=0.171+/-.024+/-.012 is in good agreement with next-to-leading order quantum chromodynamics.

Measurement of the ratio of b quark production cross sections in (p)over-bar-p collisions at root s=630 GeV and root s=1800 GeV RID C-1693-2008 RID A-5169-2010 RID E-4473-2011 RID C-2406-2008

DELL'ORSO, MAURO;DONATI, SIMONE;PUNZI, GIOVANNI;
2002

Abstract

We report a measurement of the ratio of the bottom quark production cross section in antiproton-proton collisions at roots=630 GeV to 1800 GeV using bottom quarks with transverse momenta greater than 10.75 GeV identified through their semileptonic decays and long lifetimes. The measured ratio sigma(630)/sigma(1800)=0.171+/-.024+/-.012 is in good agreement with next-to-leading order quantum chromodynamics.
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