Blar i Department of Physics and Technology på emneord "VDP::Matematikk og Naturvitenskap: 400"
Viser treff 1-20 av 44
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Et allmenndannende naturfag. Fagets betydning for demokratisk deltagelse
(Journal article, 2006) -
Analysis of Ozone (O3) and Erythemal UV (EUV) measured by TOMS in the equatorial African belt
(Peer reviewed; Journal article, 2010-01-19)We presented time series of total ozone column amounts (TOCAs) and erythemal UV (EUV) doses derived from measurements by TOMS (Total Ozone Mapping Spectrometer) instruments on board the Nimbus-7 (N7) and the Earth Probe ... -
Charged-Higgs production in the Two-Higgs-doublet model — the τ ν channel
(Peer reviewed; Journal article, 2015-06-15)We update the allowed parameter space of the CP-violating 2HDM with Type II Yukawa couplings, that survives the current experimental and theoretical constraints on the model. For a representative set of allowed parameter ... -
Dynamic effects of restoring footpoint symmetry on closed magnetic field lines
(Peer reviewed; Journal article, 2016-05-05)Here we present an event where simultaneous global imaging of the aurora from both hemispheres reveals a large longitudinal shift of the nightside aurora of about 3 h, being the largest relative shift reported on from ... -
Eksperimentell studie av vannbasert EOR i karbonatreservoarer
(Master thesis, 2009-11-20)Ulike metoder for økt oljeutvinning (EOR, eng. Enhanced Oil Recovery) har blitt utviklet og anvendt for å forbedre effektiviteten av konvensjonell vannflømming. Hensikten med EOR er å bedre den mikroskopiske fortrengning ... -
Elliptic flow of identified hadrons in Pb-Pb collisions at \(\sqrt{s_{\rm{NN}}}\) = 2.76 TeV
(Peer reviewed; Journal article, 2015-06-29)The elliptic flow coefficient \(v_{2}\) of identified particles in Pb--Pb collisions at \(\sqrt{s_\mathrm{{NN}}} = 2.76\) TeV was measured with the ALICE detector at the LHC. The results were obtained with the Scalar ... -
Enhanced detection of terrestrial gamma-ray flashes by AGILE
(Peer reviewed; Journal article, 2015-11-06)At the end of March 2015 the onboard software configuration of the Astrorivelatore Gamma a Immagini Leggero (AGILE) satellite was modified in order to disable the veto signal of the anticoincidence shield for the minicalorimeter ... -
Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
(Peer reviewed; Journal article, 2015-04-21)Results of a search for \(H \to \tau \tau\) decays are presented, based on the full set of proton--proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated ... -
Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV
(Peer reviewed; Journal article, 2015-05-20)The strength of forward-backward (FB) multiplicity correlations is measured by the ALICE detector in proton-proton (pp) collisions at s√ = 0.9, 2.76 and 7 TeV. The measurement is performed in the central pseudorapidity ... -
A giant reconstruction of α-quartz (0001) interpreted as three domains of nano dauphine twins
(Peer reviewed; Journal article, 2015-10-08)Silica (SiO2) is one of the most common materials on Earth. The crystalline form α-quartz is the stable silica polymorph at ambient conditions although metastable forms exist. α-quartz is a piezoelectric material, it can ... -
The Higgs-like boson spin from the center–edge asymmetry in the diphoton channel at the LHC
(Peer reviewed; Journal article, 2015-05-07)We discuss the discrimination of the 125 GeV spin-parity 0+ Higgs-like boson observed at the LHC, decaying into two photons, H→γγ, against the hypothesis of a minimally coupled JP=2+ narrow diphoton resonance with the same ... -
The interaction between transpolar arcs and cusp spots
(Peer reviewed; Journal article, 2015-11-25)Transpolar arcs and cusp spots are both auroral phenomena which occur when the interplanetary magnetic field is northward. Transpolar arcs are associated with magnetic reconnection in the magnetotail, which closes magnetic ... -
Jet energy measurement and its systematic uncertainty in proton–proton collisions at √s=7TeV with the ATLAS detector
(Peer reviewed; Journal article, 2015-01-15)The jet energy scale (JES) and its systematic uncertainty are determined for jets measured with the ATLAS detector using proton–proton collision data with a centre-of-mass energy of s√=7 TeV corresponding to an integrated ... -
Measurement of pion, kaon and proton production in proton–proton collisions at √s = 7 TeV
(Peer reviewed; Journal article, 2015-05-27)The measurement of primary π±, K±, p and p¯¯¯ production at mid-rapidity (|y|< 0.5) in proton–proton collisions at s√ = 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is reported. ... -
Measurement of Spin Correlation in Top-Antitop Quark Events and Search for Top Squark Pair Production in pp Collisions at s√=8 TeV Using the ATLAS Detector
(Peer reviewed; Journal article, 2015-04-08)A measurement of spin correlation in tt ¯ production is presented using data collected with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of 8 TeV, corresponding to ... -
Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at √s = 7 TeV using the ATLAS detector
(Peer reviewed; Journal article, 2015-05-12)A measurement of the top-antitop (tt¯) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb−1 of LHC pp collisions at a centreof-mass energy of 7 TeV collected by the ATLAS detector. ... -
Measurement of the inclusive jet cross-section in proton-proton collisions at \( \sqrt{s}=7 \) TeV using 4.5 fb−1 of data with the ATLAS detector
(Peer reviewed; Journal article, 2015-02-24)The inclusive jet cross-section is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV using a data set corresponding to an integrated luminosity of 4.5 fb−1 collected with the ATLAS detector at the ... -
Measurement of the production and lepton charge asymmetry of \(\textit{W}\) bosons in Pb+Pb collisions at \(\sqrt{s_{\mathrm{\mathbf{NN}}}})\)2.76 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2015-01-22)A measurement of \(\textit{W}\) boson production in lead-lead collisions at \(\sqrt{s_{\mathrm{NN}}}=\).76 TeV is presented. It is based on the analysis of data collected with the ATLAS detector at the LHC in 2011 corresponding ... -
Measurement of the t(Formula Presented.) production cross-section as a function of jet multiplicity and jet transverse momentum in 7 TeV proton-proton collisions with the ATLAS detector
(Peer reviewed; Journal article, 2015-01-08)The tt⎯⎯ production cross-section dependence on jet multiplicity and jet transverse momentum is reported for proton-proton collisions at a centre-of-mass energy of 7 TeV in the single-lepton channel. The data were collected ...