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T: Fachverband Teilchenphysik

T 3: Neue Physik: vektorartige Quarks, Z’, W’

T 3.2: Vortrag

Montag, 9. März 2015, 14:15–14:30, L.09.31 (HS 11)

Search for new physics in final states with one tau and missing transverse energy with CMS — •Klaas Padeken, Mark Olschewski, Kerstin Hoepfner, and Thomas Hebbeker — 3. Phys. Inst. A, Aachen

The first search for new physics beyond the Standard Model in pp events with one hadronically decaying tau and missing transverse energy is presented. The hadronic tau channel is of theoretical interest in light of the huge difference in mass of taus w.r.t. electrons and muons. Also other observations in relation to the third family give the third family a special role in beyond the Standard Model physics.

For this search the tau reconstruction has been extended to high energies and the first taus with TeV energies have been reconstructed and observed.

The results will be interpreted as a new heavy charged vector boson W’, which decays into a tau and a neutrino and in the framework non-universal gauge interaction model with the aim to explain the heaviness of the third generation fermions, with respect to the light first and second generation. It is performed with the 2012 dataset recorded with CMS at a center of mass energy of √s=8 TeV, corresponding to an integrated luminosity of 20 fb⁻¹.