Search for a multi-Higgs-boson cascade in W(+)W(-)b(b)over-bar events with the ATLAS detector in pp collisions at root s=8 TeV
Number of Authors: 2883
2014 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 9, UNSP 037- p.Article in journal (Refereed) Published
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 root 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.
Place, publisher, year, edition, pages
2014. no 9, UNSP 037- p.
IdentifiersURN: urn:nbn:se:uu:diva-235553DOI: 10.1007/JHEP09(2014)037ISI: 000341878800001OAI: oai:DiVA.org:uu-235553DiVA: diva2:761196
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1007/JHEP09(2014)0372014-11-052014-11-052014-11-05Bibliographically approved