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Triple (and quadruple) soft-gluon radiation in QCD hard scattering
Published 2020-01-01“…Abstract We consider the radiation of three soft gluons in a generic process for multi- parton hard scattering in QCD. …”
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Are in-medium quark-gluon showers strongly coupled? results in the large-N f limit
Published 2025-01-01Subjects: Get full text
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3
Towards an unbiased jet energy loss measurement
Published 2025-01-01Subjects: Get full text
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4
Statistical production of Bc mesons in heavy-ion collisions at the LHC energy
Published 2025-02-01Subjects: Get full text
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Nonlinear Langevin dynamics via holography
Published 2020-01-01Subjects: “…Holography and quark-gluon plasmas…”
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Girth and groomed radius of jets recoiling against isolated photons in lead-lead and proton-proton collisions at sNN=5.02 TeV
Published 2025-02-01Subjects: Get full text
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7
Analytic two-loop four-point form factor of the stress-tensor supermultiplet in N $$ \mathcal{N} $$ = 4 SYM
Published 2025-02-01“…This form factor is analogous to the Higgs plus four-gluon amplitudes in the heavy-top limit of QCD when translated to the N $$ \mathcal{N} $$ = 4 SYM context. …”
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A fragmentation-based study of heavy quark production
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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Simulating toponium formation signals at the LHC
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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Thermal axion production at hard and soft momenta
Published 2025-01-01“…In this paper we quantify the contribution to N eff and its uncertainty in models with axion-gluon couplings from thermal dynamics above the QCD transition. …”
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Infrared and transcendental structure of two-loop supersymmetric QCD amplitudes
Published 2020-01-01“…Abstract Using a careful choice of infrared (IR) subtraction scheme, we demonstrate cancellation of all terms with transcendental weights 0, 1, 2 from the finite part of the full-color two-loop four-gluon N $$ \mathcal{N} $$ = 2 supersymmetric QCD amplitude, with Nf massless supersymmetric quarks. …”
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The impact of data from future lepton colliders on light hadrons fragmentation functions
Published 2025-02-01“…Abstract In this work, we study the constraining power of future lepton colliders on fragmentation functions (FFs) to light charged hadrons from quarks and gluon in the framework of QCD collinear factorization. …”
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Fully charmed tetraquark production at the LHC experiments
Published 2025-01-01“…Prompted by the recent LHCb, ATLAS and CMS data, we perform a pQCD calculation of O $$ \mathcal{O} $$ ( α s 5 $$ {\alpha}_s^5 $$ ) short-distance factors in the dominant channel of gluon fusion, and match these to the four-body T 4c wave functions in order to obtain the unpolarized T 4c (0++ , 1+− , 2++) cross-sections. …”
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Two-colour QCD phases and the topology at low temperature and high density
Published 2020-01-01“…This is a contrast to the case of 0.89Tc in which the topological susceptibility becomes small as the hadronic phase changes into the quark-gluon plasma phase.…”
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Lévy walk of pions in heavy-ion collisions
Published 2025-02-01“…In high-energy collisions of heavy nuclei, the strongly interacting Quark Gluon Plasma is created, which, similarly to the early Universe, undergoes a rapid expansion and transition back to hadronic matter. …”
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NNLO PDFs driven by top-quark data
Published 2025-02-01“…It includes recent high-statistics data on absolute total inclusive cross sections for $$t\bar{t}+X$$ t t ¯ + X , the sum of $$(t + X)$$ ( t + X ) and $$(\bar{t} + X)$$ ( t ¯ + X ) hadroproduction, and normalized inclusive data double-differential in the invariant mass and rapidity of the $$t\bar{t}$$ t t ¯ pair at $$\sqrt{S}=13$$ S = 13 TeV. The gluon PDF at large x and the top-quark mass value derived from these data are well compatible with the previous ABMP16 results, but with significantly smaller uncertainties, reduced by up to a factor of two. …”
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Uncovering new Higgses in the LHC analyses of differential t t ¯ $$ t\overline{t} $$ cross sections
Published 2025-01-01“…In this article, we use the differential lepton distributions from the latest ATLAS t t ¯ $$ t\overline{t} $$ analysis to study a new physics benchmark model motivated by existing indications for new Higgses: a new scalar H is produced via gluon fusion and decays to S ′ (95 GeV) and S (152 GeV), which subsequently decay to b b ¯ $$ b\overline{b} $$ and WW, respectively. …”
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Polarization of thermal dilepton radiation
Published 2025-02-01“…While the low- and high-mass regions exhibit the expected limits of transverse and unpolarized photons, respectively, baryon-driven medium effects in the ρ-meson mass region create a marked longitudinal polarization that transits into a largely unpolarized emission from the quark-gluon plasma, thus providing a sensitive test of microscopic emission processes in QCD matter. …”
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Moments of axial-vector GPD from lattice QCD: quark helicity, orbital angular momentum, and spin-orbit correlation
Published 2025-01-01“…We consider both the iso-vector and iso-scalar cases, utilizing next-to-leading-order perturbative matching while omitting the disconnected contributions and gluon mixing in the iso-scalar case. For the first time, we determine the Mellin moments of H ~ $$ \overset{\sim }{H} $$ up to the fifth order. …”
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ν-point energy correletors with FastEEC: Small-x physics from LHC jets
Published 2025-02-01“…In recent years, energy correlators have emerged as a powerful tool for studying jet substructure, with promising applications such as probing the hadronization transition, analyzing the quark-gluon plasma, and improving the precision of top quark mass measurements. …”
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