S. J. Batista

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A measurement of the Higgs boson mass is presented based on the combined data samples of the ATLAS and CMS experiments at the CERN LHC in the H→γγ and H→ZZ→4ℓ decay channels. The results are obtained from a simultaneous fit to the reconstructed invariant mass peaks in the two channels and for the two experiments. The measured masses from the individual(More)
A search for Higgs boson decays to invisible particles is performed using 20.3 fb −1 of pp collision data at a centre-of-mass energy of 8 TeV recorded by the ATLAS detector at the Large Hadron Collider. The process considered is Higgs boson production in association with a vector boson (V = W or Z) that decays hadronically, resulting in events with two or(More)
A search for the decays of the Higgs and Z bosons to a ϕ meson and a photon is performed with a pp collision data sample corresponding to an integrated luminosity of 2.7  fb^{-1} collected at sqrt[s]=13  TeV with the ATLAS detector at the LHC. No significant excess of events is observed above the background, and 95% confidence level upper limits on the(More)
Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at √ s = 8 TeV with the ATLAS detector Abstract Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb −1 of √ s = 8 TeV data collected in 2012(More)
Search for direct top squark pair production in final states with two tau leptons in pp collisions at √ s = 8 TeV with the ATLAS detector Abstract A search for direct pair production of the super-symmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb −1 of proton–proton collision data at(More)
A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2012 at √ s = 8 TeV from pp collisions corresponding to an integrated luminosity of 20.3 fb −1 are examined. Particles producing anomalously high ionisation, consistent with long-lived massive particles with electric charges from |q| =(More)
Two searches for supersymmetric particles in final states containing a same-flavour opposite-sign lep-ton pair, jets and large missing transverse momentum are presented. The proton–proton collision data used in these searches were collected at a centre-of-mass energy √ s = 8 TeV by the ATLAS detector at the Large Hadron Collider and corresponds to an(More)
A search for a charged Higgs boson, H(±), decaying to a W(±) boson and a Z boson is presented. The search is based on 20.3  fb(-1) of proton-proton collision data at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the LHC. The H(±) boson is assumed to be produced via vector-boson fusion and the decays W(±)→qq' and Z→e(+)e(-)/μ(+)μ(-)(More)
This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton-proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 [Formula: see text] of collisions at a centre-of-mass energy of [Formula: see text] TeV, although in some(More)
Combined analyses of the Higgs boson production and decay rates as well as its coupling strengths to vector bosons and fermions are presented. The combinations include the results of the analyses of the H → γ γ, Z Z * , W W * , Z γ, b ¯ b, ττ and μμ decay modes, and the constraints on the associated production with a pair of top quarks and on the off-shell(More)