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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/079/05/1219-1222

    • Keywords

       

      Single top quark; electroweak; anomalous couplings; D0; direct constraints.

    • Abstract

       

      The large mass of the top quark, close to the electroweak symmetry-breaking scale, makes it a good candidate for probing physics beyond the Standard Model, including possible anomalous couplings. D0 has made measurements of single top quark production using 5.4 fb-1 of integrated luminosity. The data are examined to study the Lorentz structure of the $W tb$ coupling. It is found that the data prefer the left-handed vector coupling and set upper limits on the anomalous couplings.

    • Author Affiliations

       

      Jyoti Joshi1 Suman Beri1 for the D0 Collaboration

      1. Department of Physics, Panjab University, Chandigarh 160 014, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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