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17,409 research outcomes, page 1 of 1,741
  • publication . Preprint . Article . 2020
    Open Access English
    Authors:
    Robert F. Brown; Charlotte Deconinck; Karel Dekimpe; P. Christopher Staecker;
    Persistent Identifiers

    The theory of lifting classes and the Reidemeister number of single-valued maps of a finite polyhedron $X$ is extended to $n$-valued maps by replacing liftings to universal covering spaces by liftings with codomain an orbit configuration space, a structure recently intr...

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  • publication . Article . Preprint . 2013
    Open Access English
    Authors:
    Jérôme Martin; Christophe Ringeval; Vincent Vennin;
    Persistent Identifiers
    Publisher: HAL CCSD

    Within the class of inflationary models, k-inflation represents the most general single field framework that can be associated with an effective quadratic action for the curvature perturbations and a varying speed of sound. The incoming flow of high-precision cosmologic...

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  • publication . Preprint . Article . 2018
    Open Access English
    Authors:
    Wenqin Shi; Vincent Callewaert; B. Barbiellini; Rolando Saniz; Maik Butterling; Werner Egger; Marcel Dickmann; Christoph Hugenschmidt; Behtash Shakeri; Robert W. Meulenberg; ...
    Project: EC | NMI3 (226507)

    Comment: 14 pages, 3 figures

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  • publication . Preprint . Conference object . 2006
    Open Access English
    Authors:
    Stancu, Floarea;
    Persistent Identifiers

    Previous work done in collaboration with David Brink is reviewed in the light of the recent observation of new charmonium-like resonances which can be interpreted as tetraquarks. In the framework of a schematic quark model the spectrum of $c \bar c q \bar q $ tetraquark...

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  • publication . Article . Preprint . 2020
    Open Access
    Authors:
    Marco Drewes; Jan Hajer;
    Persistent Identifiers
    Publisher: Springer Science and Business Media LLC

    We study the sensitivity of displaced vertex searches for heavy neutrinos produced in W boson decays in the LHC detectors ATLAS, CMS and LHCb. We also propose a new search that uses the muon chambers to detect muons from heavy neutrino decays outside the tracker. The se...

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  • publication . Preprint . Conference object . 2017
    Open Access English
    Authors:
    John Pavlopoulos; Prodromos Malakasiotis; Ion Androutsopoulos;
    Persistent Identifiers

    Experimenting with a new dataset of 1.6M user comments from a Greek news portal and existing datasets of English Wikipedia comments, we show that an RNN outperforms the previous state of the art in moderation. A deep, classification-specific attention mechanism improves...

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  • publication . Preprint . Article . 2011
    Open Access English
    Authors:
    Xavier Gonze; Josef W. Zwanziger;
    Persistent Identifiers

    Comment: 5 pages including 2 figures; accepted for publication in Phys. Rev. B

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  • publication . Article . Preprint . 2014
    Open Access English
    Authors:
    Sawala, Till; Frenk, Carlos S.; Fattahi, Azadeh; Navarro, Julio F.; Theuns, Tom; Bower, Richard G.; Crain, Robert A.; Furlong, Michelle; Jenkins, Adrian; Schaller, Matthieu; ...
    Publisher: Oxford University Press
    Project: UKRI | Durham DiRAC-2 petascale ... (ST/K003267/1), UKRI | The Virgo consortium for ... (ST/H008519/1), NSF | Programs on Critical Prob... (1066293), EC | GASAROUNDGALAXIES (278594)

    Since reionization prevents star formation in most halos below 3 x 10^9 solar masses, dwarf galaxies only populate a fraction of existing dark matter halos. We use hydrodynamic cosmological simulations of the Local Group to study the discriminating factors for galaxy fo...

  • publication . Preprint . 2013
    Open Access English
    Authors:
    Garcia-Castro, A. C.; Spaldin, N. A.; Romero, A. H.; Bousquet, E.;

    We used first-principles calculations to investigate the existence and origin of the ferroelectric in- stability in the ABF3 fluoro-perovskites. We find that many fluoro-perovskites have a ferroelectric instability in their high symmetry cubic structure, which is of sim...

  • publication . Article . Preprint . Other literature type . 2017
    Open Access
    Authors:
    Sergio Ferrara; Marine Samsonyan; Magnus Tournoy; Antoine Van Proeyen;
    Persistent Identifiers
    Publisher: Springer Science and Business Media LLC

    We give a new expression for the supercurrent and its conservation in curved ${\cal N}=1$, $D=4$ superspace using the superconformal approach. The first component of the superfield, whose lowest component is the vector auxiliary field gives the (super)Einstein equations...

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17,409 research outcomes, page 1 of 1,741