WIDG Seminar: Emma Castiglia, Yale University, “Search for the Associated Production of a Higgs boson with a vector boson (W or Z), with the Higgs boson decaying to two tau leptons (VH, H → ττ) at the ATLAS Experiment.”

A theoretically well-motivated, but currently unmeasured Higgs boson decay channel at the ATLAS detector is the associated production of a Higgs boson with a vector boson, where the Higgs boson decays to a pair of taus. In this analysis, we allow the taus to decay hadronically or leptonically and require the W or Z bosons to decay leptonically. This analysis uses data from proton-proton collisions taken during Run 2 at the Large Hadron Collider with the ATLAS detector (2015-2018), with a recorded integrated luminosity of 147fb^(-1) at a center of mass energy \sqrt(s)=13TeV. The background is modeled by a data-driven method to correct for misidentified electrons, muons, and taus, and by Monte Carlo simulation for the irreducible background, which is primarily dibosons. I will discuss the current status of the analysis, tau identification and calibration in the detector, and our future plans.
RSVP for lunch at https://tinyurl.com/widg-signup