Mostrando 3,461 - 3,480 Resultados de 5,152 Para Buscar '"gluones"', tiempo de consulta: 1.30s Limitar resultados
  1. 3461
    por Thoma, Markus H.
    Publicado 2000
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    Collisional Energy Loss of Fast Charged Particles in Relativistic Plasmas
  2. 3462
    por Foka, P Y
    Publicado 1999
    “…Their relevance concerning the observation and characterisation of an extended equilibrated deconfined state of partonic matter, the quark gluon plasma (QGP) is discussed. Available data support that sufficient energy density for a phase transition of normal hadronic matter to a deconfined state is reached at the early stage of such collisions. …”
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    Overview of hadronic observables measured by NA49 at the CERN/SPS in central $^{208}$Pb+Pb collisions at 158 GeV/nucleon
  3. 3463
    por Schükraft, Jürgen
    Publicado 2000
    “…This overview, which is the combined write-up of talks given at this conference will sketch a rough picture of the heavy ion program at current and future machines and concentrate on a few important topics, in particular the question if current results show any of the signs predicted for the phase transition between normal hadronic matter and the quark-gluon plasma. (14 refs).…”
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    Little bang at big accelerators: heavy ion physics from AGS to LHC
  4. 3464
    por Fanebust, K
    Publicado 2002
    “…In particular the onset of a Quark-Gluon Plasma phase in a heavy ion collision is expected to enhance the hyperon yield with respect to normal hadronic interactions. \\ \\WA97 aims to measure the spectra of strange particles and in particular of hyperons and antihyperons produced in ultrarelativistic lead-lead interactions and to compare them with those from proton initiated reactions. …”
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    Study of Baryon and Antibaryon Spectra in Lead Lead Interactions at 160 GeV/c per Nucleon
  5. 3465
    por Bradamante, Franco
    Publicado 2004
    “…From measurements of various hadron asymmetries in polarized muon - nucleon scattering it will be possible to determine the contribution of the gluons to the nucleon spin. Main objective of the hadron program is the search of exotic states, and glueballs in particular. …”
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    Spin Physics at COMPASS
  6. 3466
    por Buras, Andrzej J
    Publicado 1977
    “…The effects of asymptotic freedom in charm and b quark production are studied, as well as the sensitivity of the results to the shape of the gluon distribution. The importance of comparing theory with data excluding low Q/sup 2/ values (say Q/sup 2/>or=2 GeV /sup 2/) in attempting to resolve the high y anomaly controversy, is emphasised. (29 refs).…”
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    Asymptotic freedom effects in nu and nu inelastic scattering
  7. 3467
    por Mastroserio, Annalisa
    Publicado 2014
    “…The charmonium states provide essential information on the properties of a new state of matter predicted to be formed at extreme energy densities and temperatures, the Quark Gluon Plasma (QGP). ALICE is an experiment at LHC dedicated to the study of the QGP state in heavy ion collisions. …”
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    $J/\psi$ production measurement at midrapidity from pp to Pb-Pb collisions with ALICE
  8. 3468
    por St Denis, Richard
    Publicado 2015
    “…Evidence for production of the Higgs boson by vector boson fusion is obtained in a model-independent approach by comparing the signal strengths μ of vector boson fusion and production associated with a vector boson to that for gluon fusion including associated production of top quark pairs: which is 3.3 Gaussian standard deviations from zero.…”
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    Higgs Boson Physics at ATLAS
  9. 3469
    por Kouznetsov, Oleg M
    Publicado 2014
    “…The COMPASS results on quark and gluon helicities are discussed, as well as results on transverse spin and transverse momentum effects in semi-inclusive deeply inelastic scattering. …”
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    The COMPASS experiment at CERN
  10. 3470
    por Meninno, Elisa
    Publicado 2017
    “…A Large Ion Collider Experiment (ALICE) was designed to study the strongly interacting medium created in heavy-ion collisions at LHC energies, the Quark Gluon Plasma (QGP). Heavy quarks (charm and beauty), produced in the early stages of the collisions, are among the most powerful probes to study this state of matter. …”
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    Studies of $\Lambda_{c}$ production in pp and p-Pb collisions with ALICE at the LHC
  11. 3471
    por Lakomov, Igor
    Publicado 2016
    “…ALICE is dedicated to the study of the strongly interacting matter, the so-called Quark-Gluon Plasma (QGP), formed in heavy-ion collisions at the LHC. …”
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    Correlations in small systems with ALICE
  12. 3472
    por Bombara, Marek
    Publicado 2018
    “…Over the last three decades, proton-proton (pp) collisions have successfully provided a reference sample for the study of nucleus-nucleus collisions and have helped to unveil features attributed there to the formation of Quark Gluon Plasma. The results from the LHC pp program revealed some intriguing features in pp collisions that resemble those of nucleus-nucleus collisions and therefore bring into question the reference sample paradigm at the TeV scale. …”
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    Strangeness production in high multiplicity pp collisions
  13. 3473
    por Terrevoli, Cristina
    Publicado 2018
    “…Heavy flavours are sensitive probes of the hot and dense quark-gluon plasma formed in high-energy nucleus-nucleus collisions. …”
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    Open heavy-flavour production in p-Pb collisions measured with ALICE at the LHC
  14. 3474
    por Kašpar, J
    Publicado 2018
    “…In particular, in perturbative QCD it could be realised as $t$-channel exchange of a colourless bound state of 3 gluons.…”
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    First measurement of elastic, inelastic and total cross-section, determination of the $ρ$ parameter at $\sqrt{s} =$ 13 TeV by TOTEM and an evidence for odderon
  15. 3475
    por Hamblen, Joshua
    Publicado 2009
    “…The propagation and energy loss of heavy quarks through the dense medium have been shown at RHIC energies to provide valuable information on gluon densities and viscosity. ALICE will be able to study heavy quark production through both muons and electrons from semi-leptonic decay of heavy quarks. …”
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    Prospects of heavy flavor physics at ALICE using the electromagnetic calorimeter
  16. 3476
    “…Several of these phenomena provide clean signatures of the onset of the new high gluon density QCD regime. The LHC is in the kinematic range where nonlinear effects are several times larger than at HERA. …”
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    The Physics of Ultraperipheral Collisions at the LHC
  17. 3477
    “…The formation of hadrons from the quarks and gluons produced in the parton shower is described using the cluster hadronization model. …”
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    Herwig++ Physics and Manual
  18. 3478
    “…In particular, we show that the gluon fusion process gg -> ttbar which remains largely unconstrained at the Tevatron is affected by only one top-philic dimension-six operator, the chromo-magnetic moment of the top quark. …”
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    info:eu-repo/semantics/article
    Non-resonant New Physics in Top Pair Production at Hadron Colliders
  19. 3479
    por Ali-Akbari, Mohammad, Gursoy, Umut
    Publicado 2011
    “…We study the energy lost by an accelerating quark probe in the quark-gluon plasma produced in the heavy ion collisions in an approximate setting where the acceleration of the probe is due to uniform circular motion. …”
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    Rotating strings and energy loss in non-conformal holography
  20. 3480
    “…The latter reveal that, similarly to the D=3+1 case, the bulk equilibrium thermodynamic quantities (pressure, trace of the energy-momentum tensor, energy density and entropy density) exhibit nearly perfect proportionality to the number of gluons, and can be successfully compared with the holographic predictions in a broad range of temperatures. …”
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    Thermodynamics of SU(N) Yang-Mills theories in 2+1 dimensions II. The Deconfined phase
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