• Open Access

Top quark anomalous FCNC production via tqg couplings at an FCC-hh

K. Y. Oyulmaz, A. Senol, H. Denizli, and O. Cakir
Phys. Rev. D 99, 115023 – Published 18 June 2019

Abstract

We investigate the top quark anomalous flavor changing neutral current (FCNC) tqg interactions to probe limits on the couplings ζc and ζu through the qglνb signal suprocess at an FCC-hh collider with center of mass energy of 100 TeV. To separate the signal from relevant Standard Model background processes, selection criteria based on boosted decision trees (BDT) is used with a set of useful kinematic variables. The sensitivities on the anomalous top FCNC couplings ζu and ζc are found to be 1.239×104 and 1.149×104 for FCC-hh with Lint=10ab1 at 95% C.L. including realistic detector effects of the FCC-hh baseline detector, respectively. The branchings BR(tug) and BR(tcg) converted from obtained limits for FCNC couplings are at the order of 107 which is at least one order of magnitude better than the projected limits of HL-LHC with Lint=3ab1.

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  • Received 12 February 2019

DOI:https://doi.org/10.1103/PhysRevD.99.115023

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

K. Y. Oyulmaz*, A. Senol, and H. Denizli

  • Department of Physics, Bolu Abant Izzet Baysal University, 14280 Bolu, Turkey

O. Cakir§

  • Department of Physics, Ankara University, 06100 Ankara, Turkey

  • *kaan.yuksel.oyulmaz@cern.ch
  • senol_a@ibu.edu.tr
  • denizli_h@ibu.edu.tr
  • §ocakir@science.ankara.edu.tr

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Issue

Vol. 99, Iss. 11 — 1 June 2019

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