TY  - JOUR
T1  - Search for doubly charged Higgs bosons in like-sign dilepton final states at √s=7 TeV with the ATLAS detector
JF  - The European Physical Journal C
N2  - A search for doubly charged Higgs bosons decaying to pairs of electrons and/or muons is presented. The search is performed using a data sample corresponding to an integrated luminosity of 4.7 fb\(^{−1}\) of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC. Pairs of prompt, isolated, high-p\(_T\) leptons with the same electric charge (\(e^±e^±, e^±μ^±, μ^±μ^±\)) are selected, and their invariant mass distribution is searched for a narrow resonance. No significant excess over Standard Model background expectations is observed, and limits are placed on the cross section times branching ratio for pair production of doubly charged Higgs bosons. The masses of doubly charged Higgs bosons are constrained depending on the branching ratio into these leptonic final states. Assuming pair production, coupling to left-handed fermions, and a branching ratio of 100 % for each final state, masses below 409 GeV, 375 GeV, and 398 GeV are excluded for \(e^±e^±, e^±μ^±\), and \(μ^±μ^±\), respectively.
KW  - background expectation
KW  - cross section time
KW  - acceptance time efficiency
KW  - partial decay width
KW  - WZ production
KW  - extrapolation factor
KW  - dilepton mass
KW  - charge misidentification
KW  - systematic uncertainty
KW  - non-prompt lepton
KW  - neutral Higgs boson
KW  - producation cross section
KW  - invariant mass distribution
KW  - MC simulation
KW  - leptonic final state
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-129540
VL  - 72
IS  - 2244
ER  - 
TY  - JOUR
T1  - ATLAS search for a heavy gauge boson decaying to a charged lepton and a neutrino in pp collisions at √s=7 TeV
JF  - The European Physical Journal C
N2  - The ATLAS detector at the LHC is used to search for high-mass states, such as heavy charged gauge bosons (W′), decaying to a charged lepton (electron or muon) and a neutrino. Results are presented based on the analysis of pp collisions at a center-of-mass energy of 7  TeV corresponding to an integrated luminosity of 4.7 fb\(^{−1}\). No excess beyond Standard Model expectations is observed. A W′ with Sequential Standard Model couplings is excluded at the 95 % credibility level for masses up to 2.55  TeV. Excited chiral bosons (W∗) with equivalent coupling strength are excluded for masses up to 2.42  TeV.
KW  - systematic uncertainty
KW  - muon decay channel
KW  - partial decay width
KW  - simulated signal event
KW  - background cross section
KW  - primary vertex
KW  - sequential standard model
KW  - muon spectrometer
KW  - Cl Lowe limit
KW  - QCD background
KW  - coupling strength
KW  - isolation requirement
KW  - chiral boson
KW  - experimental systematic uncertainty
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-128888
VL  - 72
IS  - 2241
ER  -