Heavy-quark parton distribution functions and their uncertainties

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dc.creatorSullivan, Z.
dc.creatorNadolsky, P. M.
dc.date2001-11-27
dc.date.accessioned2026-07-07T12:02:51Z
dc.date.available2026-07-07T12:02:51Z
dc.descriptionWe investigate the uncertainties of the heavy-quark parton distribution functions in the variable flavor number scheme. Because the charm- and bottom-quark parton distribution functions (PDFs) are constructed predominantly from the gluon PDF, it is a common practice to assume that the heavy-quark and gluon uncertainties are the same. We show that this approximation is a reasonable first guess, but it is better for bottom quarks than charm quarks. We calculate the PDF uncertainty for t-channel single-top-quark production using the Hessian matrix method, and predict a cross section of 2.12+0.32-0.29 pb at run II of the Tevatron.
dc.description3 pgs, 3 ps figs.; Submitted to the Proceedings of ``The Future of Particle Physics'', Snowmass 2001, P5 group
dc.identifierhttps://arxiv.org/abs/hep-ph/0111358
dc.identifierhttp://arxiv.org/abs/hep-ph/0111358
dc.identifiereConfC010630:P511,2001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207581
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleHeavy-quark parton distribution functions and their uncertainties
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