### Recent Submissions

• #### Measurements of jet vetoes and azimuthal decorrelations in dijet events produced in $pp$ collisions at $\sqrt{s}$ = 7 TeV using the ATLAS detector ﻿

(Springer, 2014-11)
Additional jet activity in dijet events is measured using $pp$ collisions at ATLAS at a centre-of-mass energy of 7 TeV, for jets reconstructed using the anti-kt algorithm with radius parameter R=0.6. This is done using ...
Journal article
• #### Freeze-out radii extracted from three-pion cumulants in pp, p-Pb and Pb-Pb collisions at the LHC ﻿

(Elsevier, 2014-12-12)
In high-energy collisions, the spatio-temporal size of the particle production region can be measured using the Bose–Einstein correlations of identical bosons at low relative momentum. The source radii are typically extracted ...
Journal article
• #### Suppression of $\Upsilon$(1S) at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV ﻿

(Elsevier, 2014-11-10)
We report on the measurement of the inclusive $\Upsilon$(1S) production in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV carried out at forward rapidity ($2.5<y<4$) and down to zero transverse momentum using its ...
Journal article
• #### Methane Hydrate Production Using Mixture of CO2 and N2. ﻿

(The University of Bergen, 2015-06-09)
Gas Hydrates (GHs) are naturally occurring solid, crystalline compounds in which natural gas is trapped inside the cage like structures formed by water molecules. Lately a novel technology has been developed for the ...
Master thesis
• #### Multiplicity dependence of jet-like two-particle correlations in p-Pb collisions at $\sqrt{s_NN}$ = 5.02 TeV ﻿

(Elsevier, 2015-02-04)
Two-particle angular correlations between unidentified charged trigger and associated particles are measured by the ALICE detector in p–Pb collisions at a nucleon–nucleon centre-of-mass energy of 5.02 TeV. The transverse-momentum ...
Journal article
• #### Fiducial and differential cross sections of Higgs boson production measured in the four-lepton decay channel in $\boldsymbol{pp}$ collisions at $\boldsymbol{\sqrt{s}}$ = 8 TeV with the ATLAS detector ﻿

(Elsevier, 2014-11-10)
Measurements of fiducial and differential cross sections of Higgs boson production in the ${H \rightarrow ZZ ^{*}\rightarrow 4\ell}$ decay channel are presented. The cross sections are determined within a fiducial phase ...
Journal article
• #### Measurement of long-range pseudorapidity correlations and azimuthal harmonics in $\sqrt{s_{\mathrm{NN}}}$=5.02 TeV proton-lead collisions with the ATLAS detector ﻿

(American Physical Society, 2014-10-09)
Measurements of two-particle correlation functions and the first five azimuthal harmonics, $v_1$ to $v_5$, are presented, using 28 $\mathrm{nb}^{-1}$ of $p$+Pb collisions at a nucleon-nucleon center-of-mass energy of ...
Journal article
• #### Measurement of the azimuthal anisotropy for charged particle production in $\sqrt{s_{NN}}$ = 2.76 TeV lead-lead collisions with the ATLAS detector ﻿

(American Physical Society, 2012-07-24)
Differential measurements of charged particle azimuthal anisotropy are presented for lead-lead collisions at $\sqrt{s_{NN}}$ = 2.76 TeV with the ATLAS detector at the LHC, based on an integrated luminosity of approximately ...
Journal article
• #### 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 new resonances in $W\gamma$ and $Z\gamma$ Final States in $pp$ Collisions at $\sqrt{s}=8\,\mathrm{TeV}$ with the ATLAS Detector ﻿

(Elsevier, 2014-11-10)
This letter presents a search for new resonances decaying to final states with a vector boson produced in association with a high transverse momentum photon, $V\gamma$, with $V= W(\rightarrow \ell \nu)$ or $Z(\rightarrow ... Journal article • #### Measurement of prompt D-meson production in p-Pb collisions at$\sqrt{s_{NN}}$=5.02TeV ﻿ (American Physical Society, 2014-12-05) The pT-differential production cross sections of the prompt charmed mesons$D^0, D^+, D^{*+}$and$D_s^+$and their charge conjugate in the rapidity interval -0.96 <$y_{cms}\$ < 0.04 were measured in p-Pb collisions at a ...
Journal article
• #### Observation of an excited B[± over c] meson state with the ATLAS detector ﻿

(American Physical Society, 2014-11-21)
A search for excited states of the B[± over c] meson is performed using 4.9  fb[superscript −1] of 7 TeV and 19.2  fb[superscript −1] of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is ...
Journal article
• #### Beauty production in pp collisions at √s=2.76 TeV measured via semi-electronic decays ﻿

(Elsevier, 2014-11)
The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y|<0.8 and transverse momentum 1<pT<10 GeV/c, in pp ...
Journal article
• #### Characterization of a neutral helium beam for helium microscopy ﻿

(The University of Bergen, 2015-06-29)
Neutral helium beam microscopy is a new development in scientific instrumentation where neutral helium atoms are utilized to image a sample. The main advantage of using neutral helium is the significantly smaller energy ...
Master thesis
• #### Monte Carlo Simulations of a Moving Target during Spot-Scanning Particle Therapy with Protons ﻿

(The University of Bergen, 2015-06-01)
During radiation therapy for cancer, the dose distribution delivered to patients will be affected by the motion of the target volume and the motion of the surrounding tissue and organs. The overall objective of this thesis ...
Master thesis
• #### Proton Beam Test Of A High Granularity Calorimeter For Proton Computed Tomography ﻿

(The University of Bergen, 2015-06-01)
Radiation therapy is a non-invasive method of treating cancer. The purpose of it is to stop cancer cells from reproducing properly which will in turn cause the cancer cells to die out. This is achieved by having ionising ...
Master thesis
• #### Azimuthal anisotropy of D-meson production in Pb-Pb collisions at √sNN =2.76 TeV ﻿

(American Physical Society, 2014-09)
The production of the prompt charmed mesons D0, D+, and D*+ relative to the reaction plane was measured in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon collision of √sNN=2.76TeV with the ALICE detector ...
Journal article
• #### Intensity asymmetries in the dusk sector of the poleward auroral oval due to IMF Bx ﻿

(WileyAmerican Geophysical Union, 2014-12)
In the exploration of global-scale features of the Earth's aurora, little attention has been given to the radial component of the Interplanetary Magnetic Field (IMF). This study investigates the global auroral response in ...
Journal article
• #### Measurement of the inclusive isolated prompt photons cross section in pp collisions at √s =7TeV with the ATLAS detector using 4.6fb-1 ﻿

(American Physical Society, 2014-03)
A measurement of the cross section for the production of isolated prompt photons in pp collisions at a center-of-mass energy √s=7  TeV is presented. The results are based on an integrated luminosity of 4.6  fb−1 collected ...
Journal article
• #### Studies on the solid-state transformation and chemical modification reactions of carbon black nanoparticles ﻿

(The University of Bergen, 2015-06-26)
Carbon black (CB) is nanoscale particles with quasi-spherical nature, produced from incomplete combustion of hydrocarbons. It is a well-known type of amorphous carbon which exists in the form of aggregated spheres. CBs are ...
Doctoral thesis