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  - 
TY  - JOUR
T1  - Search for second generation scalar leptoquarks in pp collisions at √s=7 TeV with the ATLAS detector
JF  - The European Physical Journal C
N2  - The results of a search for the production of second generation scalar leptoquarks are presented for final states consisting of either two muons and at least two jets or a muon plus missing transverse momentum and at least two jets. A total of 1.03 fb\(^{−1}\) integrated luminosity of proton-proton collision data produced by the Large Hadron Collider at s√=7 TeV and recorded by the ATLAS detector is used for the search. The event yields in the signal regions are found to be consistent with the Standard Model background expectations. The production of second generation leptoquarks is excluded for a leptoquark mass m\(_{LQ}\)<594 (685) GeV at 95 % confidence level, for a branching ratio of 0.5 (1.0) for leptoquark decay to a muon and a quark.
KW  - jet energy scale
KW  - top quark mass
KW  - multi-jet background
KW  - simulated event sample
KW  - SM background
KW  - acceptance time efficiency
KW  - top quark contribution
KW  - top quark pair
KW  - primary vertex
KW  - single top quark production
KW  - signal cross section
KW  - systematic uncertainty
KW  - single top quark
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-128957
VL  - 72
IS  - 2151
ER  -