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T: Fachverband Teilchenphysik
T 76: Suche nach Physik jenseits des Standardmodels IV
T 76.1: Vortrag
Donnerstag, 22. März 2018, 16:30–16:45, Philo-HS4
Search for new physics in events with one lepton and high missing transverse energy with the ATLAS detector — •Eike Becher and Stefan Tapprogge — Johannes Gutenberg Universität Mainz
Many models of physics beyond the Standard Model (SM) predict the existence of new spin 1 gauge bosons that could be discovered by experiments at the Large Hadron Collider (LHC).
In the leptonic decay channel the massive charged W′ boson decays into a lepton and a neutrino.
The analysis requires a single high-pT isolated lepton (l = e, µ) and substantial missing transverse energy
ETmiss originating from the undetected neutrino. The signal discriminant is the transverse mass
| mT = | √ |
| (1) |
where ϕl ν ist the angle between the lepton and ETmiss in the transverse plane.
The existence of a W′ boson could lead to an excess of data in the high transverse mass region.
From 2015 to 2017 the LHC provided proton collisions at a center of mass energy of 13 TeV.
Data corresponding to an integrated luminosity of about 70 fb−1 has been recorded by the ATLAS experiment.
The analysis strategy and an understanding of the data used in the search for narrow resonance like structure in l + ETmiss final state will be presented.