Showing 41 - 60 results of 88 for search '"gluon"', query time: 0.04s Refine Results
  1. 41

    LHC Signals of the Next-to-Lightest Scalar Higgs State of the NMSSM in the 4τ Decay Channel by M. M. Almarashi

    Published 2021-01-01
    “…We study the a1a1 and Za1 decay channels of the next-to-lightest CP-even Higgs boson h2 of the NMSSM at the LHC, where the h2 is produced in gluon fusion. It is found that while the h2 discovery is impossible through the latter channel, the former one in the 4τ final state is a promising channel to discover the h2 with masses up to around 250 GeV at the LHC. …”
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  2. 42

    A fragmentation-based study of heavy quark production by Giovanni Ridolfi, Maria Ubiali, Marco Zaro

    Published 2020-01-01
    “…In this work, we critically reconsider the validity of the widely-adopted approximation in which heavy quarks are generated at the matrix-element level, with special emphasis on the impact of the collinear logarithms associated with final-state heavy quark and gluon splittings. Our study, based on a perturbative fragmentation-function approach, explicitly shows that neglecting the resummation of collinear logarithms may yield inaccurate predictions, in particular when observables exclusive in the heavy quark degrees of freedom are considered. …”
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  3. 43

    Recent results on heavy flavours and quarkonia from ALICE by Fionda Fiorella

    Published 2025-01-01
    “…Heavy-flavour hadrons, containing at least one charm or beauty quark, are excellent probes of the deconfined medium created in ultrarelativistic heavy-ion collisions, known as quark–gluon plasma. Results in smaller collision systems, such as proton–proton and p–Pb collisions, besides representing an important baseline for interpreting heavy-ion measurements, are crucial to test perturbative QCD calculations and hadronisation mechanisms in the absence of hot medium effects, as well as to search for commonalities with heavy-ion systems. …”
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  4. 44

    Generalized Gribov-Lipatov Reciprocity and AdS/CFT by Matteo Beccaria, Valentina Forini, Guido Macorini

    Published 2010-01-01
    “…Planar 𝒩=4 SYM theory and QCD share the gluon sector, suggesting the investigation of Gribov-Lipatov reciprocity in the supersymmetric theory. …”
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  5. 45

    First measurement of heavy flavour femtoscopy in Au+Au collisions at √sNN = 200 GeV by STAR by Roy Chowdhury Priyanka

    Published 2025-01-01
    “…In the very beginning stages of heavy-ion collisions, hard partonic scatterings yield heavy quarks, which go through the entire Quark-Gluon Plasma medium evolution. Femtoscopic correlation is characterized as a two particle correlation at low relative momentum that depends on the size of the region from which the correlated particles are emitted and on the final-state interaction. …”
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  6. 46

    Composite Higgs at high transverse momentum by Andrea Banfi, Barry M. Dillon, Wissarut Ketaiam, Sandra Kvedaraitė

    Published 2020-01-01
    “…The pseudo-Goldstone boson nature of the Higgs field means that single-Higgs production via gluon fusion is insensitive to the mass spectrum of the top-partners. …”
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  7. 47

    The Mixed Phase of Charged AdS Black Holes by Piyabut Burikham, Chatchai Promsiri

    Published 2016-01-01
    “…In the dual gauge picture, they correspond to the mixed phase of quark-gluon plasma (QGP) and hadron gas in the fixed chemical potential and density ensemble, respectively. …”
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  8. 48

    The Rapidity Distributions and the Thermalization Induced Transverse Momentum Distributions in Au-Au Collisions at RHIC Energies by Zhi-Jin Jiang, Jia-Qi Hui, Yu Zhang

    Published 2017-01-01
    “…It is widely believed that the quark-gluon plasma (QGP) might be formed in the current heavy ion collisions. …”
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  9. 49

    Multiplicity and Rapidity Dependent Study of (Multi)-strange Hadrons in d+Au collisions using the STAR detector by Aggarwal Ishu

    Published 2025-01-01
    “…Strangeness enhancement has long been considered as a signature of the quark-gluon plasma formation in heavy-ion collisions. Strangeness enhancement has also been observed in small systems at the Large Hadron Collider (LHC), but the underlying physics still needs to be fully understood. …”
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  10. 50

    Simulating toponium formation signals at the LHC by Benjamin Fuks, Kaoru Hagiwara, Kai Ma, Ya-Juan Zheng

    Published 2025-02-01
    “…As an example, we study the formation of $$\eta _t$$ η t toponium states in the gluon fusion channel at the LHC, combining the re-weighted matrix elements with parton showering.…”
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  11. 51

    Transverse momentum dependent parton densities in a proton from the generalized DAS approach by A. V. Kotikov, A. V. Lipatov, B. G. Shaikhatdenov, P. Zhang

    Published 2020-02-01
    “…Abstract We use the Bessel-inspired behavior of parton densities at small Bjorken x values, obtained in the case of the flat initial conditions for DGLAP evolution equations in the double scaling QCD approximation (DAS), to evaluate the transverse momentum dependent (TMD, or unintegrated) quark and gluon distribution functions in a proton. The calculations are performed analytically using the Kimber-Martin-Ryskin (KMR) prescription with different implementation of kinematical constraint, reflecting the angular and strong ordering conditions. …”
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  12. 52

    Learning the simplicity of scattering amplitudes by Clifford Cheung, Aurélien Dersy, Matthew D. Schwartz

    Published 2025-02-01
    “…Starting from lengthy input expressions, our networks can generate the Parke-Taylor formula for five-point gluon scattering, as well as new compact expressions for five-point amplitudes involving scalars and gravitons. …”
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  13. 53

    Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium by Hluf Negash, Shashank Bhatnagar

    Published 2017-01-01
    “…These input parameters so fixed were found to give good agreements with data on mass spectra of ground and excited states of pseudoscalar and vector quarkonia, leptonic decay constants of pseudoscalar and vector quarkonia, two-photon decays, and two-gluon decays of pseudoscalar quarkonia in our recent paper. …”
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  14. 54

    Predictions for the Isolated Prompt Photon Production at the LHC at s = 13 TeV by Muhammad Goharipour, Hossein Mehraban

    Published 2017-01-01
    “…Some valuable information about the parton densities in the nucleon and nuclei, especially of the gluon, can also be achieved by analysing the measurements of the prompt photon production cross section whether inclusively or in association with heavy quarks or jets. …”
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  15. 55

    Probing a new regime of ultra-dense gluonic matter using high-energy photons with the CMS experiment by Verma Pranjal

    Published 2025-01-01
    “…Overall these studies focus on the dominance of gluons in nuclear matter probed at higher energies.…”
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  16. 56

    Balance Function in High-Energy Collisions by A. Tawfik, Asmaa G. Shalaby

    Published 2015-01-01
    “…The chemical evolution of the new-state-of-matter, the quark-gluon plasma, and its temporal-spatial evolution, femtoscopy of two-particle correlations, are accessible. …”
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  17. 57

    A Multiquark Approach to Excited Hadrons and Regge Trajectories by S. S. Afonin

    Published 2019-01-01
    “…As a byproduct a certain relation expressing the constituent quark mass via the gluon and quark condensate is put forward. We show that our approach leads to an effective mass counting scheme for meson spectrum and results in the linear Regge and radial Regge trajectories by construction. …”
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  18. 58

    Quarkonium Production and Proposal of the New Experiments on Fixed Target at the LHC by A. B. Kurepin, N. S. Topilskaya

    Published 2015-01-01
    “…The dissociation of quarkonium resonances produced in heavy ion collisions was suggested as a possible signal of the Quark-Gluon Plasma formation. At the CERN SPS, the anomalous suppression of the J/ψ production was observed in central Pb-Pb collisions by the NA50 collaboration. …”
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  19. 59

    Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy by Fu-Hu Liu, Li-Na Gao, Roy A. Lacey

    Published 2016-01-01
    “…This knee point should be related to the searching for the onset of quark deconfinement and the critical point of quark-gluon plasma (QGP) phase transition.…”
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  20. 60

    First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE by Merzlaya Anastasia

    Published 2025-01-01
    “…In particular, charm mesons are of vivid interest in the context of the study of the nature of the phasetransition between confined hadronic matter and the quark-gluon plasma. Recently, the NA61/SHINE experimental setup was upgraded with a high spatial resolution Vertex Detector which enables the reconstruction of secondary vertices from open charm meson decays. …”
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