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arXiv · 1104.1221

Exploring anomalous top interactions via the final lepton in ttbar productions/decays at hadron colliders

Zenro HIOKI·Kazumasa OHKUMA
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Abstract

We study momentum distributions of the final-state charged lepton in ppbar/pp --> ttbar --> l^+ X (l=e or mu) at hadron colliders, i.e., Tevatron and Large Hadron Collider (LHC) in order to explore possible new-physics effects in the top-quark sector. Assuming general model-independent ttbar g + ttbar gg and tbW interactions beyond the standard model, we first derive analytical formulas for the corresponding parton-parton processes. We then compute the lepton angular, energy and transverse-momentum distributions in ppbar/pp collisions to clarify how they are affected by those anomalous couplings.

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Zenro HIOKI, Kazumasa OHKUMA. 2011-06-24. Exploring anomalous top interactions via the final lepton in ttbar productions/decays at hadron colliders. https://doi.org/10.1103/physrevd.83.114045

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