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

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

We report a measurement of the ratio of the bottom quark production cross section in antiproton-proton collisions at √s = 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 σ(630)/...

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Detalhes bibliográficos
Main Authors: Acosta, D, Affolder, T, Akimoto, H, Albrow, MG, Ambrose, D, Amidei, D, Anikeev, K, Antos, J, Apollinari, G, Arisawa, T, Artikov, A, Asakawa, T, Ashmanskas, W, Azfar, F, Azzi-Bacchetta, P, Bacchetta, N, Bachacou, H, Badgett, W, Bailey, S, de Barbaro, P, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Baroiant, S, Barone, M
Formato: Journal article
Idioma:English
Publicado em: 2002
Descrição
Resumo:We report a measurement of the ratio of the bottom quark production cross section in antiproton-proton collisions at √s = 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 σ(630)/σ(1800) = 0.171±.024±.012 is in good agreement with next-to-leading order quantum chromodynamics. © 2002 The American Physical Society.

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