https://doi.org/10.1140/epjc/s10052-016-4040-x
Letter
Constraints on four-fermion interactions from the 
charge asymmetry at hadron colliders
IFIC (UVEG/CSIC), Apartado de Correos 22085, 46071, Valencia, Spain
* e-mail: marcel.vos@ific.uv.es
Received:
29
December
2015
Accepted:
30
March
2016
Published online:
13
April
2016
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 
and 
of the four-fermion effective operators.
© The Author(s), 2016
