A new era of precise measurements in particle physics undoubtedly began with
the discovery of the Higgs-like particle announced by both the ATLAS and CMS
collaborations on July 4th, 2012. The new discovered particle resembles in many
ways the Higgs boson responsible of the Electroweak Symmetry Breaking (EWSB) in
the Standard Model (SM) even if its discovery was only driven by the most
sensitive channels for the low-mass region, H->gammagamma and H->ZZ->4l.
Precise measurements of all the possible couplings with both SM and exotics
particles and the determination of the mass, spin and parity represent the
natural next steps ahead for the LHC community to deeply understand the
EWSB in elementary particle physics.
In this seminar, I will present my present and future involvement in probing
the nature of the EWSB mechanism studying the H->bb decay mode to verify its
couplings to fermions and studying an invisibly decaying Higgs boson with a
branching ratio down to ~10% to explore possible new physics contributions
beyond the SM.
Different but complementary aspects of this project are all considered, e.g.
the triggering strategies, the reconstruction techniques, the calibration of
the b-tagging algorithms and the analysis techniques, since my interests spans
in all these different activities.
