11-14 September 2019
University of Warsaw
Europe/Warsaw timezone
Signal versus Background Interference in H+ -> tb Signals for MSSM Benchmark Scenarios
Presented by Mr. Riley PATRICK
on
14 Sep 2019
from
09:00
to
09:15
Session:
Parallel 7
Content
In this talk I will present an investigation into the sizeable interference effects between a heavy charged Higgs boson signal produced via $pp \to t\bar{b}H^−$ (+ c.c.) followed by the decay $H^- \to b\bar{t}$ (+ c.c.) and the irreducible background given by $pp\to t\bar{t}b\bar{b}$ topologies at the Large Hadron Collider (LHC). It is shown how such effects could spoil current $H^\pm$ searches where signal and background are normally treated separately. The reason for this is that a heavy charged Higgs boson can have a large total width, in turn enabling such interferences, altogether leading to very significant alterations, both at the inclusive and exclusive level, of the yield induced by the signal alone. This therefore implies that currently established LHC searches for such wide charged Higgs bosons require modifications. We show such effects quantitatively using two different benchmark configurations of the minimal realisation of Supersymmetry, wherein such $H^\pm$ states naturally exist.
Place
Location: University of Warsaw
Address: Faculty of Physics
Pasteura Str. 5
02-093 Warsaw
Poland
Room: 1.01
Primary authors
- Prof. Stefano MORETTI NExT Institute (Southampton & RAL, UK)
- Mr. Riley PATRICK The University of Adelaide
- Mr. Duarte AZEVEDO Centro de Física Teórica e Computacional, Universidade de Lisboa.
- Rui SANTOS ISEL & CFTC Lisboa