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  1. 14761
    por Chung, Hee Sok
    Publicado 2016
    “…We also resum leading logarithms of the transverse momentum divided by the charm-quark mass to all orders in αs . We find that the fragmentation corrections have a significant impact on the hadroproduction cross section of charmonia. …”
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    Fragmentation contributions to hadroproduction of prompt $J/\psi$, $\chi_{cJ}$, and $\psi(2S)$ states
  2. 14762
    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
  3. 14763
    por Kahn, J
    Publicado 2017
    “…Taking everything learned from the previous Belle experiment, which ran from 1998 to 2010, Belle II aims to probe deeper than ever before into the field of heavy quark physics. By achieving an integrated luminosity of 50 ab−1 and accumulating 50 times more data than the previous experiment across its lifetime, along with a rewritten analysis framework, the Belle II experiment will push the high precision frontier of high energy physics. …”
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    The Belle II Experiment
  4. 14764
    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
  5. 14765
    “…The Standard Model involves several heavy particles: the Z- and W-bosons, the Higgs boson and the top quark. Precision studies of these particles require on the theoretical side quantum corrections at the two-loop order and beyond. …”
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    Numerics for elliptic Feynman integrals
  6. 14766
    por Ellis, John, Olive, Keith A.
    Publicado 2010
    “…In the latter case, the next-to-lightest supersymmetric particle is expected to be long-lived, and possible candidates include spartners of the tau lepton, top quark and neutrino. We then discuss the roles of the renormalization-group equations and electroweak symmetry breaking in delimiting the supersymmetric parameter space. …”
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    info:eu-repo/semantics/article
    Supersymmetric Dark Matter Candidates
  7. 14767
    “…The precise description of this background process is a prerequisite to observe associated top anti-top Higgs production in the Higgs -> bottom anti-bottom decay channel and to directly measure the top-quark Yukawa coupling at the LHC. The leading-order cross section is extremely sensitive to scale variations. …”
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    NLO QCD corrections to top anti-top bottom anti-bottom production at the LHC: 2. full hadronic results
  8. 14768
    “…The D0 lepton charge asymmetry data imply a fairly large change to the down-quark distribution and/or large nuclear corrections to be applied when fitting to deuterium structure function data, while the CDF W charge asymmetry data are more consistent with the existing PDFs. …”
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    The Effects of combined HERA and recent Tevatron W - > l $\nu$ charge asymmetry data on the MSTW PDFs
  9. 14769
    por Boer, Daniel, Pisano, Cristian
    Publicado 2012
    “…They lead to a characteristic modulation of the differential cross section in Higgs production and to azimuthal asymmetries in, for instance, heavy quark pair production. Here we study the effect on charmonium and bottomonium production in hadronic collisions, such as at LHCb and at the proposed fixed target experiment AFTER at LHC. …”
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    Polarized gluon studies with charmonium and bottomonium at LHCb and AFTER
  10. 14770
    por Zvyagin, A
    Publicado 2012
    “…The underlying process in this D meson production is supposed to be the Photon-Gluon Fusion (PGF), where a virtual photon emitted by the muon interacts with a gluon from the target nucleon, producing a charm-anticharm quark pair. Fragmentation of a charm (anticharm) quark leads with high probability to the creation of a D0 or D meson, which COMPASS detects via the D0 ! …”
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    D-meson production by muons in the COMPASS experiment at CERN
  11. 14771
    por Aaij, R, Albrecht, J, Alessio, F, Amato, S, Aslanides, E, Belyaev, I, van Beuzekom, M, Bonaccorsi, E, Bonnefoy, R, Brarda, L, Callot, O, Cattaneo, M, Chanal, H, Chebbi, M, Cid Vidal, X, Clemencic, M, Closier, J, Coco, V, Cogan, J, Deschamps, O, Dijkstra, H, Drancourt, C, Dzhelyadin, R, Frank, M, Gandelman, M, Gaspar, C, Gligorov, V V, Göbel, C, Granado Cardoso, L A, Guz, Yu, Haen, C, He, J, van Herwijnen, E, Hulsbergen, W, Jacobsson, R, Jost, B, Karbach, T M, Kerzel, U, Koppenburg, P, Krocker, G, Langenbruch, C, Lax, I, Le Gac, R, Lefèvre, R, Lefrançois, J, Leroy, O, Li Gioi, L, Liu, G, Machefert, F, Machikhiliyan, I V, Magne, M, Mancinelli, G, Marconi, U, Martín Sánchez, A, Minard, M-N, Monteil, S, Neufeld, N, Niess, V, Oggero, S, Pérez-Calero Yzquierdo, A, Perret, P, Perrin-Terrin, M, Pietrzyk, B, Puig Navarro, A, Raven, G, Robbe, P, Ruiz, H, Schune, M-H, Schwemmer, R, Serrano, J, Shapoval, I, Skwarnicki, T, Souza De Paula, B, Spradlin, P, Stahl, S, Subbiah, V K, T'Jampens, S, Teubert, F, Thomas, C, Vesterinen, M, Williams, M, Witek, M, Zvyagin, A
    Publicado 2012
    “…A principal goal of LHCb is to perform flavour physics measurements, and the trigger is designed to distinguish charm and beauty decays from the light quark background. Using a combination of lepton identification and measurements of the particles’ transverse momenta the trigger selects particles originating from charm and beauty hadrons, which typically fly a finite distance before decaying. …”
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    The LHCb Trigger and its Performance in 2011
  12. 14772
    por Zhang, Yanxi
    Publicado 2013
    “…Heavy quarkonium is the bound state of heavy quark and its anti-quark, and its production cross section and polarization can be used to test the theory models in the framework of QCD. …”
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    Measurement of Charmonium Polarization with the LHCb Detector
  13. 14773
    por Rosenthal, Oliver
    Publicado 2013
    “…The cross section measurement of top quark pair production with an additional prompt photon in the final state ($t\bar{t}\gamma$) is presented. …”
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    Evidence and cross section measurement of the process $pp\rightarrow t\bar{t}\gamma$ at a center-of-mass energy of 7 TeV with the ATLAS experiment
  14. 14774
    “…Using the well-known low-energy effective Lagrangian of QCD — valid for small (non-vanishing) quark masses and a large number of colors — we study in detail the regions of parameter space where CP is spontaneously broken/unbroken for a vacuum angle θ = π. …”
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    Spontaneous $CP$ breaking in QCD and the axion potential: an effective Lagrangian approach
  15. 14775
    “…In the unstable cases, we parametrize the time when such instability develops. For a top-quark mass mt≈173.3  GeV, the Higgs vacuum instability is triggered for ξ≳4–5, although a slightly lower mass of mt≈172.1  GeV pushes up this limit to ξ≳11–12. …”
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    Higgs-curvature coupling and post-inflationary vacuum instability
  16. 14776
    “…We present a determination of the strong coupling constant $\alpha _s(m_Z)$ based on the NNPDF3.1 determination of parton distributions, which for the first time includes constraints from jet production, top-quark pair differential distributions, and the Z $p_T$ distributions using exact NNLO theory. …”
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    Precision determination of the strong coupling constant within a global PDF analysis
  17. 14777
    por Brylinski, Wojciech
    Publicado 2018
    “…- How does the formation of quark-gluon plasma impact $J/\psi$ production? To answer these questions, one need to know the mean number of charm quark pairs $\langle c\bar{c}\rangle$ produced in a full phase space in heavy-ion collisions. …”
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    Optimalisation of track reconstruction using vertex detector in the NA61/SHINE experiment
  18. 14778
    “…In turn, we perform a Bayesian-reweighting analysis for each particle data sample which shows that each of the existing heavy-quark(onium) data set clearly points --with a minimal statistical significance of 7 $\sigma$-- to a shadowed gluon distribution at small $x$ in the lead. …”
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    Gluon Shadowing in Heavy-Flavor Production at the LHC
  19. 14779
    “…This is illustrated by computing the radiative corrections to the decay of the top quark.…”
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    Goldstone Equivalence and High Energy Electroweak Physics
  20. 14780
    “…We can introduce a sizable expansion parameter ε = $ {e}^{-\frac{2}{3}{kz}_c} $ for the realistic flavor structure in the quark sector without a fine-tuning in the bulk mass parameters, but at the expense of a large 5D Planck scale. …”
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    The Clockwork Standard Model
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