Top-quark production in hadron-hadron collisions and anomalous top-quark–gluon couplings
نویسندگان
چکیده
منابع مشابه
Top Production in Hadron–hadron Collisions and Anomalous Top–gluon Couplings
We discuss the influence of anomalous tt̄G couplings on total and differential tt̄ production cross sections in hadron–hadron collisions. We study in detail the effects of a chromoelectric and a chromomagnetic dipole moment, d′t and μ ′ t, of the top quark. In the d′t–μ ′ t plane, we find a whole region where the anomalous couplings give a zero net contribution to the total top production rate. I...
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Single-top-quark production probes the charged-current weak interaction of the top quark, and provides a direct measurement of the CKM matrix element Vtb. We perform two independent analyses to quantify the accuracy with which the W -gluon fusion (gq → tb̄q) and qq̄ → tb̄ signals can be extracted from the backgrounds at both the Tevatron and the LHC. Although perturbation theory breaks down at low...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1996
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.53.4875