Browsing Department of Physics and Technology by Title
Now showing items 915-934 of 2287
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Light-quark and gluon jet discrimination in pp collisions at √s = 7 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2014-08-21)A likelihood-based discriminant for the identification of quark- and gluon-initiated jets is built and validated using 4.7 fb−1 of proton–proton collision data at √s = 7 TeV collected with the ATLAS detector at the LHC. ... -
Limits on the production of the standard model Higgs boson in pp collisions at s=7 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2011-09-20)A search for the Standard Model Higgs boson at the Large Hadron Collider (LHC) running at a centre-of-mass energy of 7 TeV is reported, based on a total integrated luminosity of up to 40 pb−1 collected by the ATLAS detector ... -
Linear and non-linear flow modes in Pb-Pb collisions at \(\sqrt{s_{\rm NN}} =\) 2.76 TeV
(Peer reviewed; Journal article, 2017-10)The second and the third order anisotropic flow, \(V_{2}\) and \(V_3\). are mostly determined by the corresponding initial spatial anisotropy coefficients, \(\varepsilon_{2}\) and \(\varepsilon_{3}\). in the initial density ... -
Linear energy transfer-inclusive models of brainstem necrosis following proton therapy of paediatric ependymoma
(Journal article; Peer reviewed, 2023)Background and Purpose Radiation-induced brainstem necrosis after proton therapy is a severe toxicity with potential association to uncertainties in the proton relative biological effectiveness (RBE). A constant RBE of ... -
Lobe Reconnection and Cusp-Aligned Auroral Arcs
(Journal article; Peer reviewed, 2022)Following the St. Patrick's Day (17 March) geomagnetic storm of 2013, the interplanetary magnetic field had near-zero clock angle for almost two days. Throughout this period multiple cusp-aligned auroral arcs formed in the ... -
Local Mapping of Polar Ionospheric Electrodynamics
(Journal article; Peer reviewed, 2022)An accurate description of the state of the ionosphere is crucial for understanding the physics of Earth's coupling to space, including many potentially hazardous space weather phenomena. To support this effort, ground ... -
The Lompe code: A Python toolbox for ionospheric data analysis
(Journal article; Peer reviewed, 2022)A recent paper by Laundal et al. (2022c) presented a new technique to combine all available measurements of polar ionospheric electrodynamics; magnetic field measurements from ground and space, ionospheric convection data ... -
Long lived charginos in Natural SUSY?
(Peer reviewed; Journal article, 2014-05-05)Supersymmetric models with a small chargino-neutralino mass difference, and as a result metastable charginos, have been a popular topic of investigation in collider phenomenology. The possibility of a chargino lighter than ... -
Long, stitch-free slot waveguide with s-bend tapered couplers for IR-sensing applications using electron beam lithography
(Journal article, 2022)We use the fixed beam moving stage (FBMS) electron beam lithography technique to pattern a 10 mm long slot waveguide with s-bend tapered double-tip couplers. The fabrication method solves two major limitations of the FBMS ... -
Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at √s = 13 TeV
(Journal article; Peer reviewed, 2021)Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at s√ = 13 TeV by the ALICE Collaboration. The yields of particle pairs at short-(∆η ∼ 0) and long-range (1.6 < |∆η| < 1.8) in ... -
Long-range angular correlations of π, K and p in p–Pb collisions at \(\sqrt{s_{NN}}\) = 5.02 TeV
(Peer reviewed; Journal article, 2013-10)Angular correlations between unidentified charged trigger particles and various species of charged associated particles (unidentified particles, pions, kaons, protons and antiprotons) are measured by the ALICE detector in ... -
Long-range angular correlations on the near and away side in p-Pb collisions at \(\sqrt{s_{NN}}\) = 5.02 TeV
(Peer reviewed; Journal article, 2013-02)Angular correlations between 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 for transverse momentum ranges within 0.5 ... -
Long-range interactions and dynamics of excited atoms
(Master thesis, 2010-06-10)A study of the dynamics of excited hydrogenic atoms, with emphasis on analytical and numerical calculations of the time-independent and the time-dependent Schrõdinger equation. A short description of Rydberg atoms and their ... -
Long-Term multi-wavelength study of 1ES 0647+250
(Journal article; Peer reviewed, 2023)Context. The BL Lac object 1ES 0647+250 is one of the few distant γ-ray emitting blazars detected at very high energies (VHEs; ≳100 GeV) during a non-flaring state. It was detected with the MAGIC telescopes during a period ... -
Longitudinal and azimuthal evolution of two-particle transverse momentum correlations in Pb–Pb collisions at √sNN=2.76 TeV
(Journal article; Peer reviewed, 2020)This paper presents the first measurements of the charge independent (CI) and charge dependent (CD) two-particle transverse momentum correlators G^CI_2 and G^CD_2 in Pb–Pb collisions at √sNN = 2.76 TeV by the ALICE ... -
Longitudinal asymmetry and its effect on pseudorapidity distributions in Pb–Pb collisions at √sNN = 2.76 TeV
(Peer reviewed; Journal article, 2018-03-22)First results on the longitudinal asymmetry and its effect on the pseudorapidity distributions in Pb–Pb collisions at √sNN = 2.76 TeV at the Large Hadron Collider are obtained with the ALICE detector. The longitudinal ... -
Longitudinal Flow Decorrelations in Xe+Xe Collisions at √sNN =5.44 TeV with the ATLAS Detector
(Journal article; Peer reviewed, 2021)The first measurement of longitudinal decorrelations of harmonic flow amplitudes vn for n=2–4 in Xe+Xe collisions at √sNN=5.44 TeV is obtained using 3 μb−1 of data with the ATLAS detector at the LHC. The decorrelation ... -
Low Power Giga Bit Transceiver (lpGBT) Test-Suite
(Master thesis, 2023-12-20)The ALICE detector, one of the key instruments at CERN's LHC, is dedicated to capturing and measuring the properties of particles generated in high-energy particle collisions. To enhance its capabilities for studying these ... -
Low Salinity Waterflood in Combination with Surfactant/Polymer: Effect of Brine Composition
(Master thesis, 2014-06-02)The effect of low salinity water (LSW) on enhanced oil recovery has been known for decades. Although much research is done on the topic, a general agreement of the prevailing mechanism for the low salinity effect has still ... -
Low Salinity Waterflood in Combination with Surfactant/Polymer; Effect of Surfactant Slug Size
(Master thesis, 2014-06-02)In last years, there has been a growing interest in the effect of reducing salinity of injected water in oil recovery. Many studies have showed that low salinity waterflooding is a promising method that can lead to a ...