Speaker
Description
Searches for resonant Higgs bosons decaying into two scalar bosons have been attracting increasing attention at the Large Hadron Collider (LHC). The CMS Collaboration has studied various X→YH final states, and many beyond-the-Standard-Model (BSM) theories predict new scalar particles produced in association with the Standard Model Higgs boson. To further explore this sector, we present analyses targeting final states containing a pair of photons, with the other particle decaying via higher branching fraction modes (e.g., bbˉ or ττ). These analyses employ a parametric neural network (PNN), designed to efficiently probe a wide range of mass hypotheses and deliver competitive exclusion limits. The PNN naturally enables interpolation between simulated mass points, ensuring coverage of the full mass range. The presented results explore previously uncharted regions of parameter space, contributing an important piece to the broader puzzle of BSM models involving scalar bosons in the final state.