Matches in SemOpenAlex for { <https://semopenalex.org/work/W2018318324> ?p ?o ?g. }
- W2018318324 abstract "We consider QCD $toverline{t}ensuremath{gamma}$ and $toverline{t}Z$ production at hadron colliders as a tool to measure the $ttensuremath{gamma}$ and $ttZ$ couplings. At the Tevatron it may be possible to perform a first, albeit not very precise, test of the $ttensuremath{gamma}$ vector and axial vector couplings in $toverline{t}ensuremath{gamma}$ production, provided that more than $5text{ }text{ }{mathrm{f}mathrm{b}}^{ensuremath{-}1}$ of integrated luminosity are accumulated. The $toverline{t}Z$ cross section at the Tevatron is too small to be observable. At the CERN Large Hadron Collider (LHC) it will be possible to probe the $ttensuremath{gamma}$ couplings at the few-percent level, which approaches the precision which one hopes to achieve with a next-generation ${e}^{+}{e}^{ensuremath{-}}$ linear collider. The LHC's capability of associated QCD $toverline{t}V$ ($V=ensuremath{gamma},Z$) production has the added advantage that the $ttensuremath{gamma}$ and $ttZ$ couplings are not entangled. For an integrated luminosity of $300text{ }text{ }{mathrm{f}mathrm{b}}^{ensuremath{-}1}$, the $ttZ$ vector (axial vector) coupling can be determined with an uncertainty of $45ensuremath{-}85%$ ($15ensuremath{-}20%$), whereas the dimension-five dipole form factors can be measured with a precision of $50ensuremath{-}55%$. The achievable limits improve typically by a factor of $2ensuremath{-}3$ for the luminosity-upgraded ($3text{ }text{ }{mathrm{a}mathrm{b}}^{ensuremath{-}1}$) LHC." @default.
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- W2018318324 date "2005-03-11" @default.
- W2018318324 modified "2023-09-28" @default.
- W2018318324 title "Probing electroweak top quark couplings at hadron colliders" @default.
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- W2018318324 doi "https://doi.org/10.1103/physrevd.71.054013" @default.
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