The role of charge and spin asymmetries in profiling Z' → t events

5th International Workshop on Top Quark Physics

Basso, L.^1 ; Mimasu, K.^2 ; Moretti, S.^2,3

Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, D-79104 Freiburg, Germany^1

School of Physics and Astronomy, University of Southampton, Highfield, SO17 1BJ Southampton, United Kingdom^2

Particle Physics Department, Rutherford Appleton Laboratory, Chilton, Oxon OX11 0QX Didcot, United Kingdom^3

关键词: Background effects;    Final state;    Gauge bosons;    Large Hadron collider LHC;    Pair production;    Spin asymmetry;    Standard model;    Tree level;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/452/1/012002/pdf
DOI  :  10.1088/1742-6596/452/1/012002

来源: IOP

【 摘 要 】

We study the sensitivity of top pair production at the Large Hadron Collider (LHC) to the nature of an underlying Z' boson, including full tree level standard model background effects and interferences while assuming realistic final state reconstruction efficiencies. We demonstrate that exploiting asymmetry observables represents a promising way to distinguish between a selection of benchmark Z' models due to their unique dependences on the chiral couplings of the new gauge boson.