Now showing items 71-80 of 385
Dark matter and fundamental physics with the Cherenkov Telescope Array
<p>The Cherenkov Telescope Array (CTA) is a project for a next-generation observatory for very high energy (GeV–TeV) ground-based gamma-ray astronomy, currently in its design phase, and foreseen to be operative a few years ...
Measurement of the top quark pair production charge asymmetry in proton-proton collisions at √s = 7 TeV using the ATLAS detector
This paper presents a measurement of the top quark pair ( tt¯ ) production charge asymmetry A C using 4.7 fb−1 of proton-proton collisions at a centre-of-mass energy s√ = 7 TeV collected by the ATLAS detector at the LHC. ...
Photoproduction of ρ0 and Two–photon Production of Lepton Pairs in Ultra–peripheral Pb–Pb Collisions at the CERN LHC
(The University of Bergen, 2014-06-10)
<p>This thesis is based on the analysis of ultra–peripheral collisions collected by the ALICE Collaboration at the CERN LHC. ALICE is a general purpose detector designed to study heavy-ion collisions at ultra–relativistic ...
Simulering og analys av 3-fase strømningseksperimenter
(The University of Bergen, 2009-06-12)
Formålet med denne oppgaven var å analysere og simulere strømningseksperimenter med 2 og 3 faser. Størsteparten av oppgaven dreide seg om å historietilpasse eksperimentene ved å endre relativ permeabilitetskurver og ...
Comparison of residual oil cluster size distribution, morphology and saturation in oil-wet and water-wet sandstone
We imaged an oil-wet sandstone at residual oil saturation (Sor) conditions using X-ray micro-tomography with a nominal voxel size of (9 μm)3 and monochromatic light from a synchrotron source. The sandstone was rendered ...
Supersymmetric Cascade Decays at the LHC
(The University of Bergen, 2007-06-04)
Event-by-event mean pT fluctuations in pp and Pb–Pb collisions at the LHC
Event-by-event fluctuations of the mean transverse momentum of charged particles produced in pp collisions at s√ = 0.9, 2.76 and 7 TeV, and Pb–Pb collisions at √sNN = 2.76 TeV are studied as a function of the ...
Polarization-independent CP-violation in SUSY theories
(The University of Bergen, 2013-02-01)
<p>Supersymmetry (SUSY) is a beautiful mathematical concept which binds internal symmetries of a quantum field theory with global symmetries of the space-time. Applications of this approach may stretch from unsolved ...
R-parity violating chargino decays at the LHC
Supersymmetric models with R-parity violation (RPV) have become more popular following the lack of any excess of missing energy events at the 8 TeV LHC. To identify such models, the suggested searches generally rely on the ...
Eksperimentell studie av vannbasert EOR i karbonatreservoarer
(The University of Bergen, 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 fortrengnin ...