Speaker
Description
This poster presents a search for a right-handed W boson (W_R) and a heavy neutrino (N) in the Left-Right Symmetric Model, using the full CMS Run 2 dataset at 13 TeV. The analysis targets the final state with a hadronic tau, a leptonic tau, and jets from the decay chain W_R to tau N, N to tau_l jj.
A novel strategy is employed to enhance sensitivity in both resolved and boosted regimes. For the boosted topology where m_W_R is much larger than m_N, the lepton is identified inside a large-radius jet using the Lepton Subjet Fraction (LSF_3) algorithm. Two signal regions are defined to probe the m_W_R versus m_N mass plane, and a data-driven fake factor method is used to estimate the dominant background from jets misidentified as taus. The results set new exclusion limits on the W_R and N masses, significantly extending the reach of previous searches.
| Track | BSM-1: TeV Scale and prompt signatures |
|---|