May 25 – 30, 2020
Europe/Paris timezone
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Study of top-quark decay process and new limits on Wtb anomalous couplings.

May 28, 2020, 6:45 PM
Theory poster TeV-Scale BSM Poster Session (I)


Ms Apurba Tiwari (Aligarh Muslim University)


We study new physics contributions to Wtb anomalous couplings in top-quark decay process t-> Wb at the partonic level. In particular, we compute the limits on anomalous couplings to Wtb vertex. Limits were obtained at 13 TeV LHC energy with an integrated luminosity of 36.1 fb^-1 and predictions for future circular colliders, namely, HL-LHC, HE-LHC and FCC-hh were given. For future colliders, the projected luminosities of 0.3 to 3 ab^-1 at HL-LHC, 3 to 12 ab^-1 at HE-LHC, and 10 to 30 ab^-1 at FCC-hh were explored. We also analyze the CP-violation sensitivity for the process t-> Wb and found that the future colliders with enhanced luminosities give more promising results.

Primary author

Ms Apurba Tiwari (Aligarh Muslim University)


Mr Sudhir Gupta (Aligarh Muslim University)

Presentation materials