Wednesday, March 27, 2013

1303.6415 (Simone Alioli et al.)

A new observable to measure the top-quark mass at hadron colliders    [PDF]

Simone Alioli, Patricia Fernandez, Juan Fuster, Adrian Irles, Sven-Olaf Moch, Peter Uwer, Marcel Vos
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.
View original: http://arxiv.org/abs/1303.6415

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