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arXiv · 2306.06889

Probing top quark anomalous moments in $W$ boson associated single top quark production at the LHC using polarization and spin correlation

Rafiqul Rahaman·Amir Subba
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Abstract

We study the $W$ boson associated single top quark production at the Large Hadron Collider (LHC) to probe anomalous chromo-magnetic and chromo-electric moments of the top quark with the help of polarization and spin correlation observables besides the cross-section in the leptonic final state. We reconstruct the two neutrinos in the final state using the $M_{T2}$ assisted on-shell (MAOS) reconstruction method to measure the polarization and spin correlation asymmetries of the top quark and the $W$ boson. We estimate the limits on the anomalous moments in a detector-level simulation considering possible backgrounds for a few sets of integrated luminosities and examined the effect of systematic uncertainties.

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Rafiqul Rahaman, Amir Subba. 2023-06-12. Probing top quark anomalous moments in $W$ boson associated single top quark production at the LHC using polarization and spin correlation. https://doi.org/10.1103/physrevd.108.055027

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