A new observable to measure the top-quark mass at hadron colliders
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# A new observable to measure the top-quark mass at hadron colliders

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 Alioli, S.; Fernández Martínez, Patricia; Fuster Verdú, Juan A. Perfil; Irles Quiles, Adrián; Moch, S.; Uwer, Peter; Vos, Marcel Aquest document és un/a article, creat/da en: 2013 Este documento está disponible también en : http://dx.doi.org/10.1140/epjc/s10052-013-2438-2 A new method to measure the top-quark mass in high energetic hadron collisions is presented. We use theoretical predictions calculated at next-to-leading order accuracy in quantum chromodynamics to study the (normalized) differential distribution of the \ttbaronejet cross section with respect to its invariant mass $\sqrt{\sttj}$. The sensitivity of the method to the top-quark mass together with the impact of various theoretical and experimental uncertainties has been investigated and quantified. The new method allows for a complementary measurement of the top-quark mass parameter and has a high potential to become competitive in precision with respect to established approaches. Furthermore we emphasize that in the proposed method the mass parameter is uniquely defined through one-loop renormalization. Alioli, S. Fernández Martínez, Patricia Fuster Verdú, Juan A. Irles Quiles, Adrián Moch, S. Uwer, P. Vos, Marcel 2013 A new observable to measure the top-quark mass at hadron colliders European Physical Journal C 73 5 2438-1 2438-11 http://dx.doi.org/10.1140/epjc/s10052-013-2438-2