Now showing items 1-6 of 6
Observation and measurement of higgs boson decays to ww* with the ATLAS detector
(American Physical Society, 2015-07-16)
We report the observation of Higgs boson decays to WW* based on an excess over background of 6.1 standard deviations in the dilepton final state, where the Standard Model expectation is 5.8 standard deviations. Evidence ...
Search for pair production of heavy top-like quarks decaying to a high-p(T) W boson and a b quark in the lepton plus jets final state at root s=7 TeV with the ATLAS detector
A search is presented for production of a heavy up-type quark (t') together with its antiparticle, assuming a significant branching ratio for subsequent decay into a W boson and a b quark. The search is based on 4.7 fb(-1) ...
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
(American Physical Society, 2014-02-19)
A search is presented for new particles in an extension to the Standard Model that includes a heavy Higgs boson (H-0), an intermediate charged Higgs-boson pair (H-+/-), and a light Higgs boson (h(0)). The analysis searches ...
Search for high-mass dilepton resonances in pp collisions at root s = 8 TeV with the ATLAS detector
(American Physical Society, 2014-09-19)
The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to dielectron or dimuon final states. Results are presented from an analysis of proton-proton (pp) collisions at a ...
Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at root s=7 Tev
The mass of the top quark is measured in a data set corresponding to 4.6 fb(-1) of proton-proton collisions with centre-of-mass energy root s = 7 TeV collected by the ATLAS detector at the LHC. Events consistent with ...
Measurements of Higgs boson production and couplings in the four-lepton channel in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
(American Physical Society, 2015-01-16)
The final ATLAS Run 1 measurements of Higgs boson production and couplings in the decay channel H -> ZZ* -> l(+)l(-)l(+)l'(-), where l, l' = e or mu, are presented. These measurements were performed using pp collision data ...