Signal versus Background Interference in H⁺ → tb for MSSM Benchmark Scenarios

¹ Faculty of Sciences and Techniques, Abdelmalek Essaadi University, B.P. 416, Tanger, Morocco
² Centro de Física Teórica e Computacional, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Edifício C8, 1749-016 Lisboa, Portugal
³ MSISM Team, Faculté Polydisciplinaire de Safi, Sidi Bouzid, B.P. 4162, Safi, Morocco
⁴ School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
⁵ ARC Center of Excellence for Particle Physics at the Terascale, Department of Physics, University of Adelaide, 5005 Adelaide, South Australia
⁶ ISEL Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, 1959-007 Lisboa, Portugal

Published online: 16 November 2020

Abstract

In this talk an investigation into the interference effects between the process pp→t̄bH⁺ followed by the decay H⁺→tb̄ and the background process pp → tt̄bb̄ is presented. The level of interference in parts of the parameter space is shown to be high and as such it may spoil the results of typical analyses which treat signal and background as independent. This is shown for two benchmarks of the MSSM.