Search for new particles in events with one lepton and missing transverse momentum in pp collisions at √s = 8 TeV with the ATLAS detector

The ATLAS collaboration

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Abstract

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 √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.[Figure not available: see fulltext.]

Original languageEnglish
Article number37
JournalJournal of High Energy Physics
Volume2014
Issue number9
DOIs
StatePublished - Sep 2014

Funding

FundersFunder number
National Science Foundation1119200
National Science Foundation
Science and Technology Facilities CouncilPP/E002757/1, PP/E000347/1, ST/H001069/2, ST/L001195/1, ST/J00474X/1, ST/H001042/1, ST/H001042/2, ST/M002306/1, ST/J004928/1, ST/K001361/1, GRIDPP, ST/K001310/1, ST/L006464/1, ST/L00352X/1, ST/J501074/1, ST/L001144/1, ST/L003112/1, ST/J002798/1, ST/J005525/1, ST/K000659/1, ST/K001248/1, ST/K502236/1, ST/L003325/1, ST/M000761/1, ST/I000178/1, ST/G50228X/1, ST/I505756/1, ST/H001093/2, ST/M001431/1, ST/K001418/1, ST/H001093/1, ST/K001302/1, ST/K001388/1, ST/J500641/1, PP/E000487/1, ST/F007418/1, ST/K000713/1, ST/K50208X/1, ST/L001179/1, ST/J005533/1, ST/I005803/1, ST/J004944/1, ST/K501840/1, ST/H001026/1, ST/I006080/1, ST/I000186/1, ST/G502320/1, ST/K003437/1, ST/M001733/1, PP/D002915/1, ST/M000664/1, ST/H00100X/1, ST/L000970/1, ST/K00073X/1, ST/H00100X/2, ST/K000705/1, ST/L003511/1, ST/I005811/1, PP/E003087/1, ST/J005460/1, PP/E000355/1, ST/K00140X/1, ST/M001474/1, ST/F00754X/1, ST/I00372X/1, PP/E002846/1, ST/K003658/1, ST/H00095X/2, ST/J005487/1, ST/H00095X/1, ST/I006056/1, ST/M003213/1, PP/E000444/1, ST/K00137X/1, ST/H001026/2, ST/J005576/1
Science and Technology Facilities Council
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung149246
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

    Keywords

    • Beyond Standard Model
    • Hadron-Hadron Scattering

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