Results 11 to 20 of about 133,991 (238)

TOP QUARK PHYSICS [PDF]

open access: yesInternational Journal of Modern Physics A, 2008
A review is presented of the current experimental status of the top quark sector of the Standard Model. The measurements summarized include searches for electroweak single top production, the latest results on the [Formula: see text] production cross-section, and searches for new physics in top quark production and decay.
Varnes, Erich W.
openaire   +5 more sources

Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs

open access: yesPhysical Review Letters, 2011
The top quark forward-backward asymmetry measured at the Tevatron collider shows a large deviation from standard model expectations. Among possible interpretations, a non-universal $Z^\prime$ model is of particular interest as it naturally predicts a top quark in the forward region of large rapidity.
Berger, Edmond L.   +4 more
openaire   +5 more sources

Bottom-quark fragmentation in top-quark decay [PDF]

open access: yesNuclear Physics B, 2002
We study the fragmentation of the b quark in top decay in NLO QCD, within the framework of perturbative fragmentation, which allows one to resum large logarithms $\sim\log (m_t^2/m_b^2)$. We show the b-energy distribution, which we compare with the exact ${\cal O} ( _S)$ result for a massive b quark.
Corcella, Gennaro, Mitov, Alexander D.
openaire   +4 more sources

Top Quark Production

open access: yes, 2012
Recent measurements of top quark pair and single top production are presented. The results include inclusive cross sections as well as studies of differential distributions. Evidence for single top quark production in association with a W-boson in the final state is reported for the first time. Calculations in perturbative QCD up to approximate next-to-
Meyer, Andreas B.
openaire   +4 more sources

Top quark physics: Summary [PDF]

open access: yesAIP Conference Proceedings, 2001
This talk summarizes recent progress in top quark physics studies for high energy linear electron-positron colliders as presented at the LCWS2000 Workshop at Fermilab. New results were presented for top pair production at threshold and in the continuum, as well as for top production at $ $ colliders.
Orr, Lynne H.
openaire   +6 more sources

Total and Differential Cross Sections for Higgs and Top-Quark Production

open access: yesUniverse, 2018
I present theoretical calculations for Higgs-boson and top-quark production, including high-order soft-gluon corrections. I discuss charged-Higgs production in association with a top quark or a W boson, as well as single-top and top-antitop production ...
Nikolaos Kidonakis
doaj   +3 more sources

Top quark properties

open access: yesActa Physica Slovaca. Reviews and Tutorials, 2008
Top quark propertiesThere is tremendous progress in the study of top quark properties from time when the top quark was discovered by CDF and D0 collaboration in 1995 at TEVATRON collider. In this review we try to summarize results and methods how these results have been achieved. Aim is to emphasize problems and how these problems have been solved.
Ciobanu, C. I.
core   +6 more sources

Top quark properties

open access: yes, 2018
5 pages, 6 figures, TOP2018 conference ...
Van Mulders, Petra
openaire   +3 more sources

Flavor changing neutral currents in top quark production and decay

open access: green, 2013
Top quark flavor changing neutral current (FCNC) interactions are highly suppressed in the Standard Model. Therefore, any large signal of FCNCs will indicate the existence of new interactions.
E. Yazgan
openalex   +4 more sources

Top quark mass in ATLAS [PDF]

open access: green, 2017
ATLAS has made several measurements of the top quark mass using proton-proton collision data recorded in 2012 at the LHC with a centre-of-mass energy of 8 TeV. Those summarised here include an indirect determination of the top quark pole mass from lepton
B. Pearson
openalex   +3 more sources

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