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New physics contributions to Wtb anomalous couplings and top-quark decay

2022/12/04 by Apurba Tiwari, Tiwari, Apurba, Sudhir Kumar Gupta +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2212.01751

openalex publication_date 2022/12/04 · openalex created_date 2022/12/18 · openalex updated_date 2026/07/28

Abstract

In this work, we study the new physics effects arising due the presence of anomalous Wtb vertex through the semileptonic decay modes of the top-quark at the Large Hadron Collider. An estimate on the sensitivities of the aforementioned interaction at 5σ CL in the context of top-quark decay-width measurements and cross-section measurements would also be discussed for the pre-existing 13 TeV LHC data and its projections for the proposed LHC runs at 14 TeV, 27 TeV and 100 TeV. We also incorporate the \mathcal CP-violating effects to such interactions by constructing the \mathcal CP-violating asymmetries.

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