Search for new particles in events with one lepton and missing transverse momentum in $\mathit{pp}$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
Search for new particles in events with one lepton and missing transverse momentum in $\mathit{pp}$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
Search for new particles in events with one lepton and missing transverse momentum in $\mathit{pp}$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
author:
Pałka Marek
contributor:
Współautorami artykułu są członkowie ATLAS Collaboration w liczbie 2881
This paper presents a search for new particles in events with one lepton (electron or muon) and missing transverse momentum using 20.3 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}=8$ TeV recorded by the ATLAS experiment at the Large Hadron Collider. No significant excess beyond Standard Model expectations is observed. A W ′ with Sequential Standard Model couplings is excluded at the 95% confidence level for masses up to 3.24 TeV. Excited chiral bosons (W *) with equivalent coupling strengths are excluded for masses up to 3.21 TeV. In the framework of an effective field theory limits are also set on the dark matter-nucleon scattering cross-section as well as the mass scale M * of the unknown mediating interaction for dark matter pair production in association with a leptonically decaying W.
number of pulisher's sheets:
3
affiliation:
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego