Observation of W to tau and neutrino Production in pp Collisions at sqrt(s) = 7 TeV
Abdollah Mohammadi (for the CMS Collaboration)
TL;DR
This paper reports the first observation of W bosons decaying into tau leptons and neutrinos in proton-proton collisions at 7 TeV, using CMS data, with a novel background estimation method.
Contribution
It presents the first measurement of W to tau neutrino production at the LHC with a data-driven background estimation approach.
Findings
Significant signal observed for W to tau neutrino decays.
Effective data-driven background estimation method demonstrated.
Results consistent with Standard Model predictions.
Abstract
The production of W bosons decaying into a tau lepton and a neutrino with the tau lepton decaying hadronically has been observed in LHC pp collisions at sqrt(s) = 7 TeV with the CMS detector. The selection criteria provide a statistically significant signal on the top of QCD multi-jet and electroweak backgrounds. A data-driven method for the estimation of the QCD multi-jet background has been employed.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Computational Physics and Python Applications