Blar i Department of Physics and Technology på tittel
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Time sequence of TGFs and optical pulses detected by ASIM and a comparison of TGFs observed by different spacecrafts
(Master thesis, 2020-06-30)Terrestrial gamma-ray flashes (TGFs) are short energetic bursts of photons associated with lightning activity. TGFs are believed to be produced in relation to positive intracloud (IC+) lightning, during the upward propagation ... -
Time-dependent angular analysis of the decay B0s→J/ψϕ and extraction of ΔΓ s and the CP-violating weak phase ϕ s by ATLAS
(Peer reviewed; Journal article, 2012-12)A measurement of B0s→J/ψϕ decay parameters, including the CP -violating weak phase ϕ s and the decay width difference ΔΓ s is reported, using 4.9 fb−1 of integrated luminosity collected in 2011 by the ATLAS detector from ... -
To Measure the Efficiency of Energy Transfer Systems Under External
(Master thesis, 2014-06-03)Transfer of power wirelessly through magnetic resonance is a hot topic these days not only for low power consumer electronics like laptops, cell phones etc. but also for high power applications like electric cars, trains ... -
Top-quark physics at the CLIC electron-positron linear collider
(Journal article; Peer reviewed, 2019)The Compact Linear Collider (CLIC) is a proposed future high-luminosity linear electron-positron collider operating at three energy stages, with nominal centre-of-mass energies s√ = 380 GeV, 1.5 TeV, and 3 TeV. Its aim is ... -
Toward a Next Generation Particle Precipitation Model: Mesoscale Prediction Through Machine Learning (a Case Study and Framework for Progress)
(Journal article; Peer reviewed, 2021)We advance the modeling capability of electron particle precipitation from the magnetosphere to the ionosphere through a new database and use of machine learning (ML) tools to gain utility from those data. We have compiled, ... -
Toward the end-to-end optimization of particle physics instruments with differentiable programming
(Journal article; Peer reviewed, 2023)The full optimization of the design and operation of instruments whose functioning relies on the interaction of radiation with matter is a super-human task, due to the large dimensionality of the space of possible choices ... -
Towards a regulatory framework for the use of liquid hydrogen as a fuel for ships: Critical analysis of the prescriptive requirements for bunkering operations
(Master thesis, 2021-06-02)The global demand for energy increases rapidly with the growth in the population and a steady increase in the general standard of living. At the same time, the consumption of fossil fuels causes massive releases of greenhouse ... -
Towards Neural Charged Particle Tracking in Digital Tracking Calorimeters With Reinforcement Learning
(Journal article; Peer reviewed, 2023)We propose a novel technique for reconstructing charged particles in digital tracking calorimeters using reinforcement learning aiming to benefit from the rapid progress and success of neural network architectures without ... -
Towards range-guidance in proton therapy to detect organ motion-induced dose degradations
(Journal article; Peer reviewed, 2022)Introduction: Internal organ motion and deformations may cause dose degradations in proton therapy (PT) that are challenging to resolve using conventional image-guidance strategies. This study aimed to investigate the ... -
Towards the first measurement of matter-antimatter gravitational interaction
(Peer reviewed; Journal article, 2018)The AEgIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is a CERN based experiment with the central aim to measure directly the gravitational acceleration of antihydrogen. Antihydrogen atoms will be produced ... -
Tracking down the route to the SM with inflation and gravitational waves
(Journal article; Peer reviewed, 2022)We explore supersymmetric SO(10) models predicting observable proton decay and various topological defects which produce different shapes and strengths of gravitational wave backgrounds depending on the scales of intermediate ... -
Transduser med stabil åpningsvinkel over et stort frekvensområde. Design, konstruksjon og eksperimentelle målinger
(Master thesis, 2009-11-14)Denne oppgaven tar sikte på å finne en mulig transduserkonstruksjon hvis hensikt er å lette arbeidet ved klassifisering av fiskesorter. Mer vil bli sagt om bakgrunn og motivasjon, men hovedmålet i denne oppgaven er å lage ... -
Transient high latitude geomagnetic response to rapid increases in solar wind dynamic pressure
(Journal article; Peer reviewed, 2022-08-16)Rapid changes in solar wind dynamic pressure can produce a transient geomagnetic response in the high latitude ionosphere. In this study we carry out a superposed epoch analysis of the geomagnetic response based on 2,058 ... -
Transition in Optical and Radio Features During the Early Development of Negative Intracloud Leader
(Journal article; Peer reviewed, 2022)What happens when the upward in-cloud (IC) breakdown transitions into horizontally expanding extension? Optical observations of this transition in IC lightning have not previously been reported. We identify the radio and ... -
Transport and storage of CO2 in natural gas hydrate reservoirs
(Peer reviewed; Journal article, 2009-02)Storage of CO2 in natural gas hydrate reservoirs may offer stable long term deposition of a greenhouse gas while benefiting from methane production, without requiring heat. By exposing hydrate to a thermodynamically preferred ... -
Transport mechanisms for CO2-CH4 exchange and safe CO2 storage in hydrate-bearing sandstone
(Peer reviewed; Journal article, 2015-06-08)CO2 injection in hydrate-bearing sediments induces methane (CH4) production while benefitting from CO2 storage, as demonstrated in both core and field scale studies. CH4 hydrates have been formed repeatedly in partially ... -
Transverse momentum and process dependent azimuthal anisotropies in √sNN−−−=8.16 TeV p+Pb collisions with the ATLAS detector
(Journal article; Peer reviewed, 2020)The azimuthal anisotropy of charged particles produced in sNN−−−√=8.16sNN=8.16 TeV p+Pb collisions is measured with the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 165 nb−1nb−1 that was ... -
Transverse momentum broadening of medium-induced cascades in expanding media
(Journal article; Peer reviewed, 2023)In this work, we explore the features of gluonic cascades in static and Bjorken expanding media by numerically solving the full BDIM evolution equations in longitudinal momentum fraction x and transverse momentum k using ... -
Transverse momentum dependence of D-meson production in Pb–Pb collisions at \(\sqrt{s_{\rm NN}}\) = 2.76 TeV
(Peer reviewed; Journal article, 2016-03)The production of prompt charmed mesons D\)^0\), D\)^+\) and D\)^{*+}\), and their antiparticles, was measured with the ALICE detector in Pb–Pb collisions at the centre-of-mass energy per nucleon pair, \(\sqrt{s_{\rm NN}}\) ... -
Transverse momentum dependence of inclusive primary charged-particle production in p–Pb collisions at √sNN=5.02 TeV
(Peer reviewed; Journal article, 2014-09)The transverse momentum (pT) distribution of primary charged particles is measured at midrapidity in minimum-bias p–Pb collisions at √sNN = 5.02 TeV with the ALICE detector at the LHC in the range 0.15 < pT < 50 GeV/c. The ...