Blar i Department of Physics and Technology på tittel
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Anisotropic flow of charged particles in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}\) = 5.02 TeV
(Peer reviewed; Journal article, 2016-04)We report the first results of elliptic \(v_2\) , triangular \(v_3\) and quadrangular flow \(v_4\) of charged particles in Pb--Pb collisions at \(\sqrt{s_{_{\rm NN}}}=\) 5.02 TeV with the ALICE detector at the CERN ... -
Anisotropic flow of identified hadrons in Xe-Xe collisions at √sNN = 5.44 TeV
(Journal article; Peer reviewed, 2021)Measurements of elliptic (v2) and triangular (v3) flow coefficients of π±, K±, p+\( \overline{\mathrm{p}} \), \( {\mathrm{K}}_{\mathrm{S}}^0 \), and Λ+\( \overline{\Lambda} \) obtained with the scalar product method in ... -
Anisotropic flow of identified particles in Pb-Pb collisions at √sNN=5.02 TeV
(Peer reviewed; Journal article, 2018-09-03)The elliptic (v_2), triangular (v_3), and quadrangular (v-4) flow coefficients of π^±, K^±, p+p¯,Λ+Λ¯,K^0_S , and the ϕ-meson are measured in Pb-Pb collisions at √s_NN=5.02 TeV. Results obtained with the scalar product ... -
Anisotropic flow of inclusive and identified particles in Pb–Pb collisions at \(\sqrt{{s}_{NN}}=\) 5.02 TeV with ALICE
(Peer reviewed; Journal article, 2017-11)Anisotropic flow measurements constrain the shear \((\eta/s)\) and bulk \(\zeta/s\) viscosity of the quark-gluon plasma created in heavy-ion collisions, as well as give insight into the initial state of such collisions ... -
Anisotropic reflectance of Arctic snow and sea ice
(Master thesis, 2017-12-21)We present an investigation of the angular distribution of reflected light on snow and sea ice, for three selected wavelengths; 500, 800 and 1100 nm. Our analysis covers how the angular reflectance distribution is affected ... -
Anomalous evolution of the near-side jet peak shape in Pb-Pb collisions at \(\sqrt{s_{\mathrm{NN}}}\) = 2.76 TeV
(Peer reviewed; Journal article, 2017-09-08)The measurement of two-particle angular correlations is a powerful tool to study jet quenching in a \(p_{\mathrm{T}}\) region inaccessible by direct jet identification. In these measurements pseudorapidity \(\Delta\eta\) ... -
Anomalous Reconnection Layer at Earth’s Dayside Magnetopause
(Journal article; Peer reviewed, 2021)Observations by the Magnetospheric Multiscale spacecraft (MMS) of an unusual layer, located between the dayside magnetosheath and the magnetosphere, alternating with encounters with the magnetosheath during an extended ... -
Antennelse av oksiderbar røykgass fra ulmebrann i et lukket miljø. Utvikling av eksperimentelt oppsett
(Master thesis, 2017-06-20)Oppgaven er todelt; første del beskriver utformingen av det eksperimentelle oppsettet, andre del er eksperimentell og tar for seg antennelse av oksiderbar røykgass i et lukket miljø. Det var stilt følgende krav til forsøkets ... -
(Anti-)deuteron production in pp collisions at √s=13TeV
(Journal article; Peer reviewed, 2020)The study of (anti-)deuteron production in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. In this paper the production of ... -
Antiproton tagging and vertex fitting in a Timepix3 detector
(Peer reviewed; Journal article, 2018-06-07)Studies of antimatter are important for understanding our universe at a fundamental level. There are still unsolved problems, such as the matter-antimatter asymmetry in the universe. The AEgIS experiment at CERN aims at ... -
Application of MRI in studies of tetrahydrofuran hydrates in quartz sand at atmospheric pressure
(Master thesis, 2017-12-06)Natural gas hydrates form under low temperatures and high pressures. They can be found in abundance in permafrost environments and under the sea floor, where the temperature and pressure conditions ensure their stability. ... -
Are EEP Events Important for the Tertiary Ozone Maximum?
(Peer reviewed; Journal article, 2019)Energetic particle precipitation (EPP) increases the production of odd hydrogen (HOX ) species in the mesosphere, which catalytically destroy ozone (O3) in sunlight. Hence, the EPP‐HOX impact on the tertiary O3 maximum ... -
The ASIM mission on the international space station
(Peer reviewed; Journal article, 2019-03-12)The Atmosphere-Space Interactions Monitor (ASIM) is an instrument suite on the International Space Station (ISS) for measurements of lightning, Transient Luminous Events (TLEs) and Terrestrial Gamma-ray Flashes (TGFs). ... -
Aspects of Electron Dynamics in Atoms Exposed to Single Cycle Electromagnetic Pulses
(Doctoral thesis, 2018-06-29)This thesis covers the topic in atomic physics: Interaction of a strong external field with Rydberg hydrogen atom. In three scientific publications, we have targeted physical processes such as the field ionization in the ... -
Aspects of in situ angular scattering measurements in contrasting waters
(Doctoral thesis, 2022-01-28)Rapid changes are observed in oceanic and coastal environments around the world due to global temperatures increases, ocean acidification and changing weather patterns - anthropogenic climate change. These changes have ... -
Assessing North Atlantic winter climate response to geomagnetic activity and solar irradiance variability
(Peer reviewed; Journal article, 2019)Recent studies suggest a response in the North Atlantic winter circulation which lags by a couple of years with respect to sunspot maximum. This has been explained by two different top‐down mechanisms: a solar wind driven ... -
The asymmetric geospace as displayed during the geomagnetic storm on 17 August 2001
(Peer reviewed; Journal article, 2018-11-29)Previous studies have shown that conjugate auroral features are displaced in the two hemispheres when the interplanetary magnetic field (IMF) has a transverse (Y) component. It has also been shown that a BY component is ... -
Asymmetric Ionospheric Equivalent Currents at Magnetic Conjugate Points
(Master thesis, 2017-07-01)In this thesis we will study high-latitude ionospheric equivalent currents at magnetic conjugate points. The following questions have been addressed in this thesis: What solar zenith angle defines the dark-sunlit terminator? ... -
Asymmetrically Varying Guide Field During Magnetic Reconnection: Particle-In-Cell Simulations
(Journal article; Peer reviewed, 2022)Using fully kinetic particle-in-cell modeling, we investigate how magnetic reconnection responds to a varying guide field in one of the inflow regions. We find that the reconnection rate varies significantly when the ... -
ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV
(Peer reviewed; Journal article, 2019)The algorithms used by the ATLAS Collaboration during Run 2 of the Large Hadron Collider to identify jets containing b-hadrons are presented. The performance of the algorithms is evaluated in the simulation and the efficiency ...