Single-top-quark production at hadron colliders

Journal Article · Sun Nov 01 04:00:00 EST 1998 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.58.094021· OSTI ID:662341

Stelzer, T; Sullivan, Z; Willenbrock, S ^[1]

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1. Department of Physics, University of Illinois, 1110 West Green Street, Urbana, Illinois 61801 (United States)

Single-top-quark production probes the charged-current weak interaction of the top quark, and provides a direct measurement of the CKM matrix element V{sub tb}. We perform two independent analyses to quantify the accuracy with which the W-gluon fusion (gq{r_arrow}t{bar b}q) and q{bar q}{r_arrow}t{bar b} signals can be extracted from the backgrounds at both the Fermilab Tevatron and the CERN LHC. Although perturbation theory breaks down at low transverse momentum for the W-gluon fusion {bar b} differential cross section, we show how to obtain a reliable cross section integrated over low {bar b} transverse momenta up to a cutoff. We estimate the accuracy with which V{sub tb} can be measured in both analyses, including theoretical and statistical uncertainties. We also show that the polarization of the top quark in W-gluon fusion can be detected at the Fermilab Tevatron and the CERN LHC. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 662341
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 58; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CERN LHC
DIFFERENTIAL CROSS SECTIONS
FERMILAB TEVATRON
HADRON-HADRON INTERACTIONS
KOBAYASHI-MASKAWA MATRIX
MASS
PARTICLE PRODUCTION
STANDARD MODEL
T QUARKS