2015/12/23 by Saurabh D. Rindani, Pankaj Sharma, Rindani, Saurabh D. +3
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.1512.07408
openalex publication_date 2015/12/23 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28
We study the sensitivities of non-standard top and Higgs couplings in the\npp\→ thj process at the 14 TeV high-luminosity run of Large Hadron Collider\n(HL-LHC). We calculate top polarization and construct various lab-frame\nobservables to study their sensitivities on anomalous couplings at HL-LHC. Both\nanomalous Wtb and hVV couplings contribute in the production process. However,\nonly the former contributes in top decay and only the latter takes part in\nHiggs decay. We study this interesting interplay of couplings in the production\nand decay observables. In production, these couplings significantly affect the\ntop polarization. As a measure of top polarization, we look at decay-lepton\nangular distributions in the laboratory frame and study the effect of anomalous\ncouplings on these distributions. We construct certain asymmetries to study the\nsensitivity of these distributions to top quark couplings. In particular, real\nand imaginary parts of an hVV coupling and real part of a Wtb coupling f2R\nsignificantly alter the top polarization and, in turn, affect the decay-lepton\ndistributions in laboratory frame.\n