Determination of the top quark mass from leptonic observables
Jul 10, 201429 pages
Published in:
- JHEP 09 (2014) 012
- Published: 2014
e-Print:
- 1407.2763 [hep-ph]
Report number:
- CERN-PH-TH-2014-117,
- CAVENDISH-HEP-14-05
View in:
Citations per year
Abstract: (arXiv)
We present a procedure for the determination of the mass of the top quark at the LHC based on leptonic observables in dilepton events. Our approach utilises the shapes of kinematic distributions through their few lowest Mellin moments; it is notable for its minimal sensitivity to the modelling of long-distance effects, for not requiring the reconstruction of top quarks, and for having a competitive precision, with theory errors on the extracted top mass of the order of 0.8 GeV. A novel aspect of our work is the study of theoretical biases that might influence in a dramatic way the determination of the top mass, and which are potentially relevant to all template-based methods. We propose a comprehensive strategy that helps minimise the impact of such biases, and leads to a reliable top mass extraction at hadron colliders.Note:
- 29 pages, 3 figures
- QCD Phenomenology
- Hadronic Colliders
- CERN LHC Coll
- p p: scattering
- top: pair production
- top: mass
- top: decay
- dilepton: production
- quantum chromodynamics: correction
- correction: higher-order
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Figures(3)
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