@Article{Kuhn+Rodrigo2012,
author="Kuhn, J. H.
and Rodrigo, G.",
title="Charge asymmetries of top quarks at hadron colliders revisited",
journal="Journal of High Energy Physics",
year="2012",
publisher="Springer",
volume="01",
number="1",
pages="063--25pp",
optkeywords="Heavy Quark Physics; Hadronic Colliders; Standard Model; Beyond Standard Model",
abstract="A sizeable difference in the differential production cross section of top-compared to antitop-quark production, denoted charge asymittetm has been observed at the Tevatron. The experimental results seem to exceed the theory predictions based on the Standard Model by a significant amount and have triggered a large number of suggestions for {\textquoteleft}{\textquoteleft}new physics{\textquoteright}. In the present paper the Standard Model predictions for Tevatron and LHe experiments are revisited. This includes a reanalysis of electromagnetic as well as weak corrections, leading to a shift of the asymmetry by roughly a factor 1.1 when compared to the results of the first papers on this subject. The impact of cuts on the transverse momentum of the top-antitop system is studied. Restricting the it system to a transverse momentum less than 20 GeV leads to an enhancement of the asymmetries by factors between 1.3 and 1.5, indicating the importance of an improved understanding of the tt-momentum distribution. Predictions for similar measurements at the LHC are presented, demonstrating the sensitivity of the large rapidity region bot ti to the Standard Model contribution and effects from {\textquoteright}{\textquoteright}new physics{\textquoteleft}{\textquoteleft}.",
optnote="WOS:000300181800063",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=971), last updated on Thu, 26 Apr 2012 18:01:28 +0000",
issn="1126-6708",
doi="10.1007/JHEP01(2012)063",
opturl="http://arxiv.org/abs/1109.6830",
opturl="https://doi.org/10.1007/JHEP01(2012)063",
archivePrefix="arXiv",
eprint="1109.6830",
language="English"
}