Mostrando 15,741 - 15,760 Resultados de 16,682 Para Buscar '"quarks"', tiempo de consulta: 1.22s Limitar resultados
  1. 15741
    por Pedersen, Maiken
    Publicado 2008
    “…This study looks at signatures of a specific version of supersymmetry: the minimal supergravity model (mSUGRA), and a decay-chain that leads to at least two leptons (electrons or muons) of opposite charge, quark-jets and missing transverse energy from the end-product of the decay-chain: a weakly interacting stable supersymmetric particle. …”
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  2. 15742
    por Kreczko, Lukasz
    Publicado 2009
    “…Precision measurements of the cross section for top-quark pair production are an important test of the Standard Model. …”
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  3. 15743
    por Tawfik, A
    Publicado 2010
    “…A phase transition from quark--gluon plasma to hadrons, a hadronization, has been conjectured in order to allow modifications in the phase space volume and thus in single--particle distribution function. …”
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  4. 15744
    por Bisnovatyi-Kogan, Gennady S
    Publicado 2011
    “…Additional sections have been added on strange quark stars, jet formation and collimation, radiation-driven winds in strong gravitational fields and gamma-ray bursts. …”
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    Enlace del recurso
  5. 15745
    por Miller, D W
    Publicado 2011
    “…Finally, the first boosted hadronic object observed at the LHC -- the decay of the top quark to a single jet -- is presented.…”
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  6. 15746
    “…ALICE is the experiment dedicated to the study of the quark gluon plasma in heavy-ion collisions at the CERN LHC. …”
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    Enlace del recurso
  7. 15747
    por CMS Collaboration
    Publicado 2012
    “…We search for evidence of leptoquarks decaying to a b-quark plus $\nu_{\tau}$, characterized as final state involving events with b-jets and large missing transverse energy. …”
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  8. 15748
    por Walkowiak, W
    Publicado 2012
    “…Slides for the Joint Theory-Experiment Workshop “Searches for New Physics via Heavy Quark Physics at Hadron Colliders” University of Washington, Seattle February 6th - 10th, 2012 This presentation will discuss recent results of the B-physics studies with the ATLAS experiment. …”
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  9. 15749
    por Laycock, Paul
    Publicado 2012
    “…With a hundred times the luminosity that was achieved at HERA, salient expectations for the LHeC include the complete determination of all light and heavy quark parton distributions for the first time, the high precision extraction of the gluon density, the determination of the strong coupling constant to per-mil accuracy and the precision study of the running of the electroweak mixing angle.…”
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  10. 15750
    por CMS Collaboration
    Publicado 2012
    “…Included are the cases %including the cases where the Higgs boson is produced with two forward jets in the vector boson fusion %Higgs boson process (SM search), or with a high-$p_{\mathrm{T}}$ hadronic jet %where the tau pair has large transverse momentum (SM search), or in association with a b-quark jet (MSSM search). No significant excess of events over background expectations is observed and %results of the analysis are translated into 95\% CL upper limits on the cross section of the Higgs boson production in the SM and on model parameters in the MSSM scenarios are presented.…”
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  11. 15751
    por Holzbauer, Jenny
    Publicado 2012
    “…Single-top is electroweak top-quark production and t-channel is one of the standard model production modes. …”
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  12. 15752
    por Jo, Mihee
    Publicado 2012
    “…These modification factors provide stringent constraints on the theoretical models of heavy quark energy loss. Until recently only indirect measurements of this effect existed, through single electrons from semileptonic open heavy-flavor decays. …”
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  13. 15753
    por Mironov, Camelia Maria
    Publicado 2012
    “…These represent the first detailed measurements, in heavy-ion collision, of the b-quark energy loss kinematic dependence.…”
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  14. 15754
    por Becker, Bruce
    Publicado 2012
    “…It will be possible to explore in great detail phenomena discovered or hinted at in the course of experiments at the Relativistic Heavy Ion Collider, in particular the signals of the quark-gluon plasma. One of the most promising signals of the creation of this new state of matter is the anomalous suppression of the Υ (bb) and J/v(cc) families. …”
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  15. 15755
    por Dobrigkeit Chinellato, David
    Publicado 2013
    “…Proton-proton collisions are also used as a reference for nuclear collisions of different multiplicities in the study of Quark-Gluon Plasma (QGP) formation. The increase of strangeness production is considered an important observable of the QGP. …”
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  16. 15756
    “…Astrophys. 473, 11, 2007}] and here it has been upgraded to handle the physics of the Quark-Gluon Plasma. ECHO-QGP features second-order treatment of causal relativistic viscosity effects in both Minkowskian or Bjorken coordinates; partial or complete chemical equilibrium of hadronic species before kinetic freeze-out; initial conditions based on the optical Glauber model, including a Monte-Carlo routine for event-by-event fluctuating initial conditions; a freeze-out procedure based on the Cooper-Frye prescription. …”
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    Enlace del recurso
  17. 15757
    “…ALICE (A Large Ion Collider Experiment) is the heavy-ion detector studying the physics of strongly interacting matter and the quark-gluon plasma at the CERN LHC (Large Hadron Collider). …”
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    Enlace del recurso
  18. 15758
    por MacGregor, Malcolm H
    Publicado 2013
    “…An alpha-quantized mass-generation grid extends accurately from the electron all the way to the top quark t, and leads to a corresponding alpha-quantized particle lifetime grid. …”
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  19. 15759
    por CMS Collaboration
    Publicado 2013
    “…This note presents a search for direct top squark pair production followed by decays to Higgs bosons using events with one or two electrons or muons and several jets, with at least three of them identified as originating from a b quark. The analysis is performed with $19.5~\rm{fb^{-1}}$ of proton-proton collision data at $\sqrt{s}=8$ TeV recorded with the CMS detector at the LHC. …”
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  20. 15760
    por Angerami, Aaron Richard
    Publicado 2014
    “…In particular, they enable the study of QCD at high temperatures and provide accessibility to a medium, the Quark-Gluon Plasma (QGP), containing a high density of unscreened color charges. …”
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