https://doi.org/10.1140/epjc/s10052-016-4263-x
Regular Article - Theoretical Physics
Pinning down electroweak dipole operators of the top quark
1
CERN Theory Division, 1211, Geneva 23, Switzerland
2
Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
* e-mail: soreqy@mit.edu
Received:
11
April
2016
Accepted:
13
July
2016
Published online:
19
August
2016
We consider hadronic top quark pair production and pair production in association with a photon or a Z boson to probe electroweak dipole couplings in 
, 
, and 
interactions. We demonstrate how measurements of these processes at the 13 TeV LHC can be combined to disentangle and constrain anomalous dipole operators. The construction of cross section ratios allows us to significantly reduce various uncertainties and exploit orthogonal sensitivity between the and couplings. In addition, we show that angular correlations in 
production can be used to constrain the remaining dipole operator. Our approach yields excellent sensitivity to the anomalous couplings and can be a further step toward precise and direct measurements of the top quark electroweak interactions.
© The Author(s), 2016
