Constraints on four-fermion interactions from the tt charge asymmetry at hadron colliders

2015/12/23 by M. Vos, Rosello, Martin Perello, Vos, Marcel · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1512.07542

openalex publication_date 2015/12/23 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28

Abstract

The charge asymmetry in top quark production at hadron colliders is sensitive to beyond-the-Standard-Model four-fermion interactions. In this study we compare the sensitivity of cross-section and charge asymmetry measurements to effective operators describing four-fermion interactions and study the limits on the validity of this approach. A fit to a combination of Tevatron and LHC measurements yields stringent limits on the linear combinations C₁ and C₂ of the four-fermion effective operators.

Citations

• UFO – The Universal FeynRules Output

Cited by

• Top physics at high-energy lepton colliders

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