5–7 Oct 2022
DESY Hamburg
Europe/Berlin timezone

Identification of charged leptons in jets at future Higgs factories.

6 Oct 2022, 14:45
15m
CSSB Auditorium (DESY Hamburg)

CSSB Auditorium

DESY Hamburg

Parallel session talk WG2 - Physics Analysis Methods WG 2: Physics Analysis Methods

Speaker

Leonhard Reichenbach (FTX (Technol. zukuenft. Teilchenph. Experim.))

Description

An important goal at future Higgs factories are precise measurements of the 125
GeV Higgs boson properties. As the Higgs boson predominantly decays
to $b\bar{b}$, the precise reconstruction of heavy flavor jets is crucial. A source
of uncertainty for these jets is missing momentum from semi-leptonic
decays $b\to\ell\nu X$. Recent work has shown the possibility of correcting
this missing neutrino momentum. For this, the charged lepton from
the decay needs to be successfully reconstructed and identified. While
particle flow detector concepts with their high granularity offer ideal
conditions to identify leptons inside jets, the excellent hardware needs
to be matched with corresponding reconstruction algorithms. In this
work, we use the detailed simulation of the ILD detector concept to
investigate how to exploit the information provided by a particle flow
detector to identify single electrons and muons in a dense environment
and how this improves the reconstruction of $H\to b\bar{b}$ decays.

Primary author

Leonhard Reichenbach (FTX (Technol. zukuenft. Teilchenph. Experim.))

Co-author

Jenny List (FTX (FTX-SLB))

Presentation materials