Now showing items 1-20 of 209

    • Acoustic Methods for Obtaining the Pressure Reflection Coefficient from a Buffer Rod Based Measurement Cell 

      Bjørndal, Erlend; Frøysa, Kjell-Eivind (IEEE, 2008-08-08)
      The known acoustic methods for obtaining the pressure reflection coefficient from a buffer rod based measurement cell are presented, along with 2 new generic approaches for measuring the pressure reflection coefficient ...
      Journal articlePeer reviewed
    • The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events 

      Alme, Johan; Andres, Y; Appelshauser, H; Bablok, Sebastian Robert; Bialas, N; Bølgen, Rikard; Bonnes, U; Bramm, R; Braun-Munzinger, P; Campagnolo, R; Christiansen, P; Dobrin, A; Engster, C; Fehlker, Dominik; Foka, Y; Frankenfeld, U; Gaardhoje, JJ; Garabatos, C; Glassel, P; Gutierrez, CG; Gros, P; Gustafsson, HA; Helstrup, Håvard; Hoch, M; Ivanov, M; Janik, R; Junique, A; Kalweit, A; Keidel, R; Kniege, S; Kowalski, M; Larsen, Dag Toppe; Lesenechal, Y; Lenoir, P; Lindegaard, N; Lippmann, C; Mager, M; Mast, M; Matyja, A; Munkejord, Magne; Musa, L; Nielsen, BS; Nikolic, V; Oeschler, H; Olsen, EK; Oskarsson, A; Osterman, L; Pikna, M; Rehman, A; Renault, G; Renfordt, R; Rossegger, S; Røhrich, Dieter; Røed, Ketil; Richter, Matthias; Rueshmann, G; Rybicki, A; Sann, H; Schmidt, HR; Siska, M; Sitar, B; Soegaard, C; Soltveit, HK; Soyk, D; Stachel, J; Stelzer, H; Stenlund, E; Stock, R; Strmen, P; Szarka, I; Ullaland, Kjetil; Vranic, D; Veenhof, R; Westergaard, J; Wiechula, J; Windelband, B (Elsevier, 2010-10-01)
      The design, construction, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the main device for pattern recognition, tracking, and identification of charged particles in the ALICE experiment ...
      Journal article
    • An altitude and distance correction to the initial fluence distribution of TGFs 

      Nisi, Ragnhild Schrøder; Østgaard, Nikolai; Gjesteland, Thomas; Collier, Andrew B. (Wiley, 2014-10)
      The source fluence distribution of terrestrial gamma ray flashes (TGFs) has been extensively discussed in recent years, but few have considered how the TGF fluence distribution at the source, as estimated from satellite ...
      Journal article
    • Azimuthal anisotropy of D-meson production in Pb-Pb collisions at √sNN =2.76 TeV 

      Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Agnello, Michelangelo; Agostinelli, Andrea; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Nazeer; Ahn, Sang Un; Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Yang, Shiming; Zhou, Zhuo; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Ahn, Sul-Ah; Ajaz, Muhammad; Akindinov, Alexander; Alt, Torsten; ALICE, Collaboration (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
    • The BABAR detector: Upgrades, operation and performance 

      Eigen, Gerald; Stugu, Bjarne Sandvik; Sun, Liang; Aubert, Bernard; Asgeirsson, David J.; Atmacan, Hulya; Blinov, Vladimir E.; Bondioli, Mario; Brown, David Nathan; Buzykaev, Alexey; Campagnari, Claudio; Cheng, Chih-Hsiang; Druzhinin, Vladimir P.; Garra Tico, Jordi; Eisner, Alan M.; Gary, J. William; Golubev, Vladimir B.; Grauges, Eugeni; Hearty, Christopher; Hong, Tae Min; Kerth, Leroy T.; Khan, Akram; Kirby, David S.; Koch, Helmut; Kolomensky, Yury G.; Kovalskyi, Dmytro; Kravchenko, Evgeniy A.; Kroseberg, Jurgen; Lankford, Andrew J.; Lees, Jean-Pierre; Liu, Feng; Lockman, William S.; Long, Owen; Lynch, Gerald; Mandelkern, Mark A.; Martinez, Alfonso Joel; Mattison, Tom S.; McKenna, Janis A.; Richman, Jeffrey D.; Schroeder, Torsten; Schumm, Bruce Andrew; Seiden, Abe; Serednyakov, Sergey I.; Skovpen, Yuri I.; So, Rocky Y.; Solodov, Evgeni Petrovich; Tisserand, Vincent; Todyshev, Korneliy Yu.; Vitug, Gil M.; West, Christopher A.; BABAR, Collaboration (Elsevier, 2013-11-21)
      The BaBar detector operated successfully at the PEP-II asymmetric e+e− collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the ...
      Journal article
    • Bacterial proteins with cleaved or uncleaved signal peptides of the general secretory pathway 

      De Souza, Gustavo Antonio; Leversen, Nils Anders; Målen, Hiwa; Wiker, Harald G (Elsevier, 2011-12-21)
      Correct protein compartmentalization is a key step for molecular function and cell viability, and this is especially true for membrane and externalized proteins of bacteria. Recent proteomic reports of Bacillus subtilis ...
      Journal article
    • Beauty production in pp collisions at √s=2.76 TeV measured via semi-electronic decays 

      Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agostinelli, Andrea; Ahammed, Zubayer; Ahmad, Nazeer; Ahmad Masoodi, Arshar; Ahn, Sang Un; Alme, Johan; Djuvsland, Øystein; Erdal, Hege Austrheim; Helstrup, Håvard; Kileng, Bjarte; Altinpinar, Sedat; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Yang, Shiming; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Langøy, Rune; Lien, Jørgen André; Ahn, Sul-Ah; Ajaz, Muhammad; Akindinov, Alexander; Aleksandrov, Dimitry; Alessandro, Bruno; Alici, Andrea; Alkin, Anton; Ljunggren, Hans Martin; ALICE, Collaboration (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
    • Characteristics of the flank magnetopause: Cluster observations 

      Haaland, Stein; Reistad, Jone Peter; Tenfjord, Paul; Gjerloev, Jesper W.; Maes, Lukas; deKeyser, Johan; Maggiolo, Romain; Anekallu, Chrandrasehkar; Dorville, Nicolas (WileyAmerican Geophysical Union, 2014-11)
      The magnetopause is a current sheet forming the boundary between the geomagnetic field on one side and the shocked solar wind on the other side. This paper discusses properties of the low-latitude dawn and dusk flanks ...
      Journal article
    • Charged-Higgs production in the Two-Higgs-doublet model — the τ ν channel 

      Basso, Lorenzo; Osland, Per; Pruna, Giovanni Marco (Springer, 2015-06-15)
      We update the allowed parameter space of the CP-violating 2HDM with Type II Yukawa couplings, that survives the current experimental and theoretical constraints on the model. For a representative set of allowed parameter ...
      Journal article
    • Charged-particle multiplicities in $pp$ interactions at $\sqrt{s}$ = 900 GeV measured with the ATLAS detector at the LHC 

      Aad, Georges; Buanes, Trygve; Burgess, Thomas; Eigen, Gerald; Johansen, Lars Gimmestad; Kastanas, Alex; Lipniacka, Anna; Mohn, Bjarte Alsaker; Øye, Ola Kristoffer; Sandaker, Heidi; Sjursen, Therese; Stugu, Bjarne; Tonoyan, Arshak; Ugland, Maren; Zutshi, V. (Elsevier, 2010-04)
      The first measurements from proton-proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy ...
      Journal article
    • Charged-particle multiplicity measurement in proton–proton collisions at √s = 0.9 and 2.36 TeV with ALICE at LHC 

      The ALICE Collaboration; Aamodt, K.; Abel, N.; Alme, Johan; Bablok, Sebastian Robert; Haaland, Øystein Senneset; Huang, M.; Kanaki, K.; Larsen, Dag Toppe; Nystrand, J.; Pommeresche, Bjørn; Skjerdal, Kyrre; Wagner, B. (Springer, 2010-07-12)
      Charged-particle production was studied in proton–proton collisions collected at the LHC with the ALICE detector at centre-of-mass energies 0.9 TeV and 2.36 TeV in the pseudorapidity range |η|<1.4. In the central region ...
      Peer reviewedJournal article
    • Charged-particle multiplicity measurement in proton–proton collisions at √s = 7 TeV with ALICE at LHC 

      The ALICE Collaboration; Aamodt, K.; Abel, N.; Abeysekara, U.; Alme, Johan; Bablok, Sebastian Robert; Fehlker, D.; Haaland, Øystein Senneset; Huang, M.; Larsen, Dag Toppe; Nystrand, J.; Ullaland, K.; Øvrebekk, G. (Springer, 2010-08-03)
      The pseudorapidity density and multiplicity distribution of charged particles produced in proton–proton collisions at the LHC, at a centre-of-mass energy Ös=7s=7 TeV, were measured in the central pseudorapidity region ...
      Peer reviewedJournal article
    • Climatology of aerosol optical properties in Northern Norway and Svalbard 

      Chen, Yi-Chun; Frette, Ø.; Stamnes, J. J.; Hamre, B. (European Geosciences Union, 2012-12-07)
      We present comparisons between estimates of the aerosol optical thickness and the °Angstr¨om exponent in Northern Norway and Svalbard based on data from AERONET stations at Andenes (69 ◦N, 16 ◦E, 379 m altitude) and ...
      Peer reviewedJournal article
    • Cluster observations of a field aligned current at the dawn flank of a bursty bulk flow 

      Snekvik, Kristian; Haaland, Stein; Østgaard, Nikolai; Hasegawa, H.; Nakamura, R.; Takada, T.; Juusola, L.; Amm, O.; Pitout, F.; Rème, H.; Klecker, B.; Lucek, E. A. (European Geosciences Union, 2007-06-29)
      This article describes observations of a bursty bulk flow (BBF) in the outer central plasma sheet. The observations are made with the Cluster satellites, located approximately 19RE downtail, close to the midnight sector ...
      Journal articlePeer reviewed
    • Combined positron emission tomography and computed tomography to visualize and quantify fluid flow in sedimentary rocks 

      Fernø, Martin; Gauteplass, Jarand; Hauge, Lars Petter; Abell, Geir Espen; Adamsen, Tom Christian; Graue, Arne (AGU (American Geophysical Union) Publications, 2015-09-22)
      Here we show for the first time the combined positron emission tomography (PET) and computed tomography (CT) imaging of flow processes within porous rocks to quantify the development in local fluid saturations. The coupling ...
      Journal article
    • Comparison of planar and 3D silicon pixel sensors used for detection of low energy antiprotons 

      Gligorova, Angela; Holmestad, Helga Margrete; Huse, Torkjell; Kaltenbacher, Thomas; Pacifico, Nicola; Røhne, Ole Myren; Sandaker, Heidi; Zmeskal, Johann (IEEE, 2014-12)
      The principle aim of the AEḡIS experiment at CERN is to measure the acceleration of antihydrogen due to Earth’s gravitational field. This would be a test of the Weak Equivalence Principle, which states that all bodies ...
      Journal article
    • Comparison of residual oil cluster size distribution, morphology and saturation in oil-wet and water-wet sandstone 

      Iglauer, Stefan; Fernø, Martin; Shearing, Paul; Blunt, Martin (Elsevier, 2012-06-01)
      We imaged an oil-wet sandstone at residual oil saturation (Sor) conditions using X-ray micro-tomography with a nominal voxel size of (9 μm)3 and monochromatic light from a synchrotron source. The sandstone was rendered ...
      Journal article
    • Comprehensive measurements of $t$-channel single top-quark production cross sections at $\sqrt{s} = 7$ TeV with the ATLAS detector 

      Aad, Georges; Abbott, Brad; Abdallah, Jalal; Abdel Khalek, Samah; Abdinov, Ovsat Bahram oglu; Aben, Rosemarie; Abi, Babak; Abolins, Maris; AbouZeid, Hass; Abramowicz, Halina; Buanes, Trygve; Dale, Ørjan; Eigen, Gerald; Martin dit Latour, Bertrand; Kastanas, Alex; Liebig, Wolfgang; Lipniacka, Anna; Rosendahl, Peter Lundgaard; Sandaker, Heidi; Sjursen, Therese B.; Smestad, Lillian; Stugu, Bjarne; Ugland, Maren; Bugge, Lars; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Czyczula, Zofia; Franconi, Laura; Gjelsten, Børge Kile; Gramstad, Eirik; Ould-Saada, Farid; Pajchel, Katarina; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Stapnes, Steinar; Strandlie, Are; Abreu, Henso; Abreu, Rômulo F.; Adamczyk, Leszek; Adelman, Jareed; Adomeit, Stefanie; Adye, Tim; Agatonovic-Jovin, Tatjana; Aguilar Saavedra, Juan Antonio; Agustoni, Marco; Ahlen, Steven; Åkerstedt, Henrik; Åkesson, Torsten P.A.; ATLAS, Collaboration (American Physical Society, 2014-12-11)
      This article presents measurements of the $t$-channel single top-quark ($t$) and top-antiquark ($\bar{t}$) total production cross sections $\sigma(tq)$ and $\sigma(\bar{t}q)$, their ratio $R_{t}=\sigma(tq)/\sigma(\bar{t}q)$, ...
      Journal article
    • Confining the angular distribution of terrestrial gamma ray flash emission 

      Gjesteland, Thomas; Østgaard, Nikolai; Collier, A. B.; Carlson, B. E.; Cohen, M. B.; Lehtinen, N. G. (American Geophysical Union, 2011-11-11)
      Peer reviewedJournal article
    • Correlations among elliptic flow parameter, impact parameter, and multiplicity 

      Zhou, Dai-Mei; Cheng, Yun; Yan, Yu-Liang; Dong, Bao-Guo; Sa, Ben-Hao; Csernai, Laszlo P. (Springer, 2010-09-01)
      The elliptic flow parameter, v2, in the Fourier expansion of the event-by-event charged-particle multiplicity azimuthal distribution in the momentum space is studied by taking into account the multiplicity fluctuations. ...
      Peer reviewedJournal article