Now showing items 327-346 of 437

• #### R-parity violating chargino decays at the LHC ﻿

(Springer, 2014-12)
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 ...
Journal article
• #### The Randall-Sundrum radion: Production Through Gluon Fusion, and Two-Photon Decay ﻿

(The University of Bergen, 2000)
Master thesis
• #### Reaching towards higher masses of supersymmetric particles decaying to tau leptons ﻿

(The University of Bergen, 2014-06-30)
This thesis presents an optimisation of the search for SUSY in final states with one tau lepton, jets and missing transverse energy. The SUSY model considered is mSUGRA with the parameter values: A_0 = -2m0, tan(beta) ...
Master thesis
• #### Reactive transport modelling of hydrate phase transition dynamics in porous media ﻿

(The University of Bergen, 2015-03-27)
Gas hydrate is believed to be so abundant in nature that some estimates suggest it contains more than two times equivalent energy of the whole fossil fuels on Earth. Besides, reservoir hydrates have other important aspects ...
Doctoral thesis
• #### Reactive Transport of CO2 in Saline Aquifers with implicit geomechanical analysis ﻿

(Elsevier, 2009)
Geological storage of CO2 in saline aquifers is a promising way to reduce the concentration of the greenhouse gas in the atmosphere. Injection of CO2 will, however, lead to dissolution of minerals in regions of lowered pH ...
Journal article
• #### Reciprocity calibration method for ultrasonic piezoelectric transducers in air ﻿

(The University of Bergen, 2013-06-17)
The conventional three-transducer reciprocity calibration method for use in gas at ambient pressure and temperature is studied. Modifications are introduced, introducing correction factors for absorption in air, diffraction ...
Master thesis
• #### Recreating the top quark: Commissioning and monitoring of the ATLAS Inner Detector and search for New Physics with heavy particles. ﻿

(The University of Bergen, 2012-02-03)
The ATLAS (A Toroidal Lhc ApparatuS) experiment is one of the two general purpose experiments at the Large Hadron Collider (LHC) at CERN, the European Organization for Nuclear Research. The LHC is a proton-proton and ...
Doctoral thesis
• #### Reduction of noise in seismic hydrophone arrays modelling of breathing waves and adaptive noise cancelling ﻿

(The University of Bergen, 1993-04)
Doctoral thesis
• #### Rheology of Synthetic Polymers in Porous Media ﻿

(The University of Bergen, 2014-06-02)
This master thesis is written out of the Centre for Integrated Petroleum Research (UNI CIPR) at the University of Bergen (UiB). The aim of this study has been to describe the polymer rheology of the high molecular ...
Master thesis
• #### Rotation and Turbulence in Peripheral Heavy Ion Collisions ﻿

(The University of Bergen, 2014-12-16)
In our computational fluid dynamics (CFD) calculations the Kelvin-Helmholtz instability (KHI) starts to develop in peripheral collisions. At high energies the shear viscosity of the Quark Gluon Plasma (QGP) flow is ...
Doctoral thesis
• #### Rotation and Turbulent Instability in Peripheral Heavy Ion Collisions ﻿

(EDP Sciences, 2014-04-29)
In recent years ﬂuid dynamical processes became a dominant direction of research in high energy heavy ion reactions. The Quark-gluon Plasma formed in these reactions has low viscosity, which leads to significant ﬂuctuations ...
Conference object
• #### Rotation in an exact hydrodynamical model ﻿

(American Physical Society, 2014-08-01)
We study an exact and extended solution of the fluid dynamical model of heavy ion reactions and estimate the rate of slowing down of the rotation due to the longitudinal and transverse expansion of the system. The initial ...
Journal article
• #### Sammenligning av spredningsmodellering med kodene PHAST og FLACS, for “tyngre en luft” gassjeter med horisontalt sammenstøt, og valideringssimuleringer av MUST forsøkene. ﻿

(The University of Bergen, 2011-01-20)
Denne rapporten er et arbeid som sammenligner to dataverktøy, PHAST og FLACS vedrørende ulike spredningsscenarier for fluider, først og fremst tung-gassutslipp. Det er utført en rekke simuleringer som ligger til grunn for ...
Master thesis
• #### Scattering from spheres and cylinders - revisited ﻿

(Norwegian Physical Society, 2006)
Backscattering of sound from elastic spheres is commonly applied for calibration of acoustic systems. Measurements on the "form function" of various tungsten carbide spheres turned out not to match simulations based on ...
Conference object
• #### Scenario based analysis of fire escalation in a gas process plant ﻿

(The University of Bergen, 2013-05-28)
This study takes place on a medium sized gas process plant called reference plant. In this thesis several escalation scenarios, as well as gas dispersion, is evaluated through Kameleon KFX and Vessfire. It has previously ...
Master thesis
• #### Search for a Multi-Higgs Boson Cascade in $W^+W^− b\bar{b}$ events with the ATLAS detector in pp collisions at √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 (H±), and a light Higgs boson ($h^0$). The analysis searches for ...
Journal article
• #### Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √s=8 TeV with the ATLAS detector ﻿

(Springer Berlin Heidelberg, 2014-12-11)
A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions or large extra spatial dimensions. The LHC 2012 proton–proton collision dataset ...
Journal article
• #### Search for dark matter in events with a hadronically decaying W or Z boson and missing transverse momentum in pp collisions at √s = 8 TeV with the ATLAS detector ﻿

(American Physical Society, 2014-01-29)
A search is presented for dark matter pair production in association with a W or Z boson in pp collisions representing 20.3  fb−1 of integrated luminosity at s√=8  TeV using data recorded with the ATLAS detector at the ...
Journal article
• #### Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at √s = 8TeV with the ATLAS detector ﻿

(American Physical Society, 2014-07-10)
A search is presented for production of dark-matter particles recoiling against a leptonically decaying Z boson in 20.3  fb⎻¹ of pp collisions at s√=8  TeV with the ATLAS detector at the Large Hadron Collider. Events with ...
Journal article
• #### Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 8 TeV pp collisions with the ATLAS detector ﻿

(Springer, 2014-04)
A search for the direct production of charginos and neutralinos in final states with three leptons and missing transverse momentum is presented. The analysis is based on 20.3 fb−1 of s√ = 8 TeV proton-proton collision data ...
Journal article