TY  - CONF
AU  - Torkian, Matin
AU  - Nattland, Philipp
AU  - Adamowicz, Kai Fabian
AU  - Adan, Danyer Perez
AU  - Herreros, Daina Leyva Pernia Victor Serrano
AU  - Botta, Valeria
AU  - Feld, Lutz
AU  - Aldaya, Maria
TI  - Preliminary Studies of ttH(bb) Dileptonic Events Using CMS Run3 Data and Initial Tests of SPANet in This Channel
M1  - PUBDB-2025-03685
PY  - 2025
AB  - The Standard Model (SM) of particle physics predicts that the Higgs boson couples to fermions via a Yukawa-type interaction, with a strength proportional to the fermion mass. This makes the associated production of a Higgs boson with a top-quark pair ( ttH ) a crucial process to directly probe the top-Higgs Yukawa coupling, an essential parameter for confirming the SM nature of the Higgs boson. Among Higgs boson decays, the channel into a bb quark pair has the largest branching fraction, offering an experimentally promising final state. However, ttH(bb) process faces significant challenges regarding backgrounds, especially tt +jets production, with the ttbb background being irreducible with respect to the ttH, H → bb signal. Advance Machine Learning techniques are essential to improve the sensitivity to the signal process.This work focuses on the analysis of the ttH, H → bb process in events with two leptons, using proton-proton collision data collected by the CMS experiment at the LHC during Run3 at √s = 13.6   TeV . ML methods are explored to significantly enhance the sensitivity to the ttH signal. For the first time in this final state we are exploring the potential of SPANet for jet-parton assignment and neutrino kinematic regressions and finally signal and background classification.
T2  - DPG Spring Meeting (German Physical Society)
CY  - 31 Mar 2025 - 4 Apr 2025, Göttingen (Germany)
Y2  - 31 Mar 2025 - 4 Apr 2025
M2  - Göttingen, Germany
LB  - PUB:(DE-HGF)6
UR  - https://bib-pubdb1.desy.de/record/636471
ER  -