Summer Student Projects Submission 2025

Studying the Higgs Boson production in association with top-quarks and decaying into a b-quark pair with CMS Run 3 data

Not scheduled

20m

Speaker

Daina Leyva Pernia (CMS (CMS Fachgruppe TOP))

Description

The measurement of the top-Higgs coupling is a crucial probe for testing the
validity of the Standard Model. One direct way to explore this coupling is
through the top-associated Higgs boson production process (ttH). On the other
hand, the Higgs decay into a pair of bottom quarks (Hbb) features the largest
branching fraction among all possible channels and thus offers a great incentive
to scrutinize this process. This project contributes to the ongoing analysis of
the ttHbb process with CMS Run 3 data, with an emphasis on several key
improvements:
• The transition towards more data-driven methods for improved background description.
• The application of advanced Machine Learning (ML) techniques for more
accurate jet-parton assignment and event categorization.
The student will gain an in-depth understanding of the analysis workflows
at CMS and will contribute to the development of the ttHbb analysis. They
will explore the potential kinematic reconstruction of the signal events when
both W bosons emerging from the top quark pair decay to a (anti-)lepton and
a (anti-)neutrino.

Special Qualifications

Python