Top Effective Operators at the ILC

3rd Symposium on Prospects in the Physics of Discrete Symmetries

Fiolhais, Miguel C. N.^1

LIP, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal^1

关键词: Anomalous couplings;    Center-of-mass energies;    Effective operator;    International Linear Collider;    Large Hadron collider LHC;    Linear colliders;    Pair production;    Possible futures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/447/1/012032/pdf
DOI  :  10.1088/1742-6596/447/1/012032

来源: IOP

【 摘 要 】

In this paper we study the effect of new physics contributions to the top quark pair production (t) in a possible future linear collider, such as the International Linear Collider (ILC). The use of a dimension-six gauge invariant effective operator approach allows to compare the prospected results at the ILC with the current ones obtained at the Large Hadron Collider (LHC), both in neutral and charged current processes. We also prove that the use of specific observables, together with a combination of measurements in different polarized beam scenarios and with different center-of-mass energies, allows to disentangle different effective operator contributions and significantly improve the limits on the anomalous couplings with respect to the LHC.