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      https://www.ias.ac.in/article/fulltext/pram/069/05/0915-0919

    • Keywords

       

      Top; polarization; anomalous top coupling.

    • Abstract

       

      We investigate the possibilities of studying new physics in various processes of 𝑡-quark production using kinematical distributions of the secondary lepton coming from decay of 𝑡 quarks. We show that the angular distributions of the secondary lepton are insensitive to the anomalous $tbW$ vertex and hence are pure probes of new physics in a generic process of 𝑡-quark production. The effects of 𝑡 polarization on the distributions of the decay lepton are demonstrated for top-pair production process at a $\gamma \gamma$-collider mediated by a heavy Higgs boson.

    • Author Affiliations

       

      Rohini M Godbole1 Saurabh D Raindani2 Ritesh K Singh3

      1. Center for High Energy Physics, Indian Institute of Science, Bangalore 560 012, India
      2. Physical Research Laboratory, Ahmedabad 380 009, India
      3. Laboratoire de Physique Théoretique, 91405 Orsay Cedex, France
    • Dates

       
  • Pramana – Journal of Physics | News

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