Constraints on four-fermion interactions from the $t\bar{t}$ charge asymmetry at hadron colliders

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 $C_1$ and $C_2$ of the four-fermion effective operators.

References in corpus (9)

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Cited by in corpus (5)

• Probing anomalous $Wtb$ couplings at the LHC in single top quark production through $t$-channel
• Top physics at high-energy lepton colliders
• New Physics from High Energy Tops
• Effective Field Theory in the top sector: do multijets help?
• Top quark physics in the Large Hadron Collider era