Top-quark mass measurements using jet rates at LHC
LBNL & UC Berkeley, 1 Cyclotron Road, Berkeley, CA 94720, USA
2 IFIC, Universitat de València and CSIC, Catedrático Jose Beltrán 2, E-46980 Paterna, Spain
3 II. Inst. für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany
4 DESY, Platanenallee 6, D-15738 Zeuthen, Germany
5 Humboldt-Universität zu Berlin, Newtonstrasse 15, D-12489 Berlin, Germany
Published online: 26 November 2013
This work presents a new method to measure the top-quark mass in hadronic collisions. The method uses the sensitivity of the -jet production on the top-quark mass. In detail we study the ℛ distribution defined as the -jet normalized cross section differential in the invariant mass of the total system and calculated at NLO accuracy. We prove that the ℛ distribution has a high sensitivity to the top-quark mass. Furthermore we investigate and quantify the impact of the dominant theoretical and experimental uncertainties. The results obtained show, that the method has the potential to be competitive in precision with established approaches and allows a complementary measurement of the top-quark mass at hadron colliders. We emphasize that in the proposed method the mass parameter is uniquely defined through one-loop renormalization.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.