Matches in SemOpenAlex for { <https://semopenalex.org/work/W2001581273> ?p ?o ?g. }
- W2001581273 abstract "We determine the weak interaction corrections of order ${ensuremath{alpha}}_{s}^{2}ensuremath{alpha}$ to hadronic top-quark pair production. First we compute the one-loop weak corrections to $toverline{t}$ production due to gluon fusion and the order ${ensuremath{alpha}}_{s}^{2}ensuremath{alpha}$ corrections to $toverline{t}$ production due to (anti)quark-gluon scattering in the standard model. With our previous result [W. Bernreuther, M. Fucker, and Z. G. Si, Phys. Lett. B 633, 54 (2006).] this yields the complete corrections of order ${ensuremath{alpha}}_{s}^{2}ensuremath{alpha}$ to $gg$, $qoverline{q}$, $qg$, and $overline{q}g$ induced hadronic $toverline{t}$ production with $t$ and $overline{t}$ polarizations and spin correlations fully taken into account. For the Tevatron and the LHC we determine the weak contributions to the transverse top momentum and to the $toverline{t}$ invariant-mass distributions. At the LHC these corrections can be of the order of 10% compared with the leading-order results, for large ${p}_{T}$ and ${M}_{toverline{t}}$, respectively. Apart from parity-even $toverline{t}$ spin correlations we analyze also parity-violating double- and single-spin asymmetries and show how they are related if $CP$ invariance holds. For $t$ (and $overline{t}$) quarks which decay semileptonically, we compute a resulting charged-lepton forward-backward asymmetry ${A}_{PV}$ with respect to the $t$ ($overline{t}$) direction, which is of the order of 1% at the LHC for suitable invariant-mass cuts." @default.
- W2001581273 created "2016-06-24" @default.
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- W2001581273 date "2006-12-14" @default.
- W2001581273 modified "2023-10-02" @default.
- W2001581273 title "Weak interaction corrections to hadronic top quark pair production" @default.
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- W2001581273 doi "https://doi.org/10.1103/physrevd.74.113005" @default.
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