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195 research outcomes, page 1 of 20
  • publication . Other literature type . Doctoral thesis . 2016
    Open Access English
    Authors:
    Araque Espinosa, Juan Pedro;
    Project: FCT | CERN/FP/116346/2010 (116346)

    Tese de Doutoramento em Física In the present thesis a search for new heavy fermions using LHC data collected in 2012 by the ATLAS experiment is presented. In particular, a search for pair and single production of vector-like quarks with electric charge 2/3 (T) and -1/3...

  • publication . Preprint . Article . 2010
    Open Access English
    Authors:
    Das, C R; Pulido, Joao;
    Project: FCT | SFRH/BPD/41091/2007 (SFRH/BPD/41091/2007), EC | UNILHC (237920)

    It has been known for some time that the well established LMA solution to the observed solar neutrino deficit fails to predict a flat energy spectrum for SuperKamiokande as opposed to what the data indicates. It also leads to a Chlorine rate which appears to be too high...

  • publication . Article . Preprint . Other literature type . 2012
    Open Access English
    Authors:
    Néstor Armesto; Liliana Apolinário;
    Publisher: ELSEVIER SCIENCE BV
    Project: EC | HOTLHC (279579), FCT | SFRH/BD/64543/2009 (SFRH/BD/64543/2009), FCT | CERN/FP/116379/2010 (116379)

    In order to assess the ability of jet observables to constrain the characteristics of the medium produced in heavy-ion collisions at the LHC, we investigate the influence of background subtraction and jet quenching on jet reconstruction, with focus on the dijet asymmetr...

  • publication . Article . Preprint . 2010
    Open Access English
    Authors:
    Gustavo C. Branco; Francisco J. Botella; M. N. Rebelo (Margarida Nesbitt Rebelo);
    Publisher: Elsevier
    Project: FCT | CERN/FP/83503/2008 (83503), EC | UNILHC (237920)

    Peer reviewed

  • publication . Article . Other literature type . 2018
    Open Access English
    Authors:
    Carlos Delgado; Ramon J. Garcia Lopez;
    Publisher: HAL CCSD
    Project: EC | MAtISSE (707543), AKA | Finnish Consortium for So... (258963), FCT | PTDC/FIS/122567/2010 (122567)

    International audience; We report on the observation of new properties of secondary cosmic rays Li, Be, and B measured in the rigidity (momentum per unit charge) range 1.9 GV to 3.3 TV with a total of $5.4 \times 10^6$ nuclei collected by AMS during the first five years...

  • publication . Article . Other literature type . Preprint . 2016
    Open Access English
    Authors:
    Joao Penedones; Miguel S Costa;
    Publisher: Springer Nature
    Project: FCT | CERN/FP/83508/2008 (83508), FCT | SFRH/BPD/34052/2006 (SFRH/BPD/34052/2006), FCT | SFRH/BSAB/870/2008 (SFRH/BSAB/870/2008)

    We consider the Regge limit of a CFT correlation function of two vector and two scalar operators, as appropriate to study small-x deep inelastic scattering in N=4 SYM or in QCD assuming approximate conformal symmetry. After clarifying the nature of the Regge limit for a...

  • publication . Other literature type . Article . Conference object . 2014
    Open Access English
    Authors:
    Susana Amor Santos;
    Project: FCT | SFRH/BD/73438/2010 (SFRH/BD/73438/2010)

    The top quark is the heaviest known fundamental particle. As it is the only quark that decays before it hadronizes, this allows the unique opportunity to probe the properties of bare quarks. In this paper the most recent precision measurements of the top quark propertie...

  • publication . Article . Preprint . Other literature type . 2012
    Open Access English
    Authors:
    Ana Sofia Nunes; Jan Friedrich; Márcia Quaresma; Aram Kotzinian; Boris Grube; Alexander Korzenev; Bakur Parsamyan; Alexander Austregesilo; M. Stolarski; Krzysztof Zaremba; ...
    Publisher: HAL CCSD
    Project: FCT | CERN/FP/123600/2011 (123600), FCT | CERN/FP/116376/2010 (116376), FCT | CERN/FP/109323/2009 (109323)

    The COMPASS Collaboration at CERN has measured the transverse spin azimuthal asymmetry of charged hadrons produced in semi-inclusive deep inelastic scattering using a 160 GeV positive muon beam and a transversely polarised NH_3 target. The Collins asymmetry of the proto...

  • publication . Other literature type . Article . Preprint . 2012
    Open Access English
    Authors:
    José Guilherme Milhano;
    Project: FCT | CERN/FP/116379/2010 (116379)

    Medium-induced parton energy loss, resulting from gluon exchanges between the QCD matter and partonic projectiles, is expected to underly the strong suppression of jets and high-pT hadron spectra observed in ultra-relativistic heavy ion collisions. Here, we present the ...

  • publication . Article . Preprint . Other literature type . 2014
    Open Access
    Authors:
    Juan Antonio Aguilar Saavedra;
    Publisher: Springer Nature
    Project: FCT | EXPL/FIS-NUC/0460/2013 (133482)

    Comment: LATeX 17 pages. Added a fit for a heavy octet. Final version to appear in JHEP

195 research outcomes, page 1 of 20
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