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The p_T Spectrum in Heavy-Flavour Photoproduction
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We consider the transverse-momentum distribution of heavy flavours in photon-hadron collisions. We present a formalism in which large transverse-momentum logarithms are resummed to the next-to-leading level, and mass effects are included exactly up to order alpha_em alpha_s^2, so as to retain predictivity at both small and large transverse momenta. Phenomenological applications relevant to charm photoproduction at HERA are given.
Forward citations
Cited by 13 Pith papers
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Measurement of D$^0$ meson photoproduction in ultraperipheral heavy ion collisions
First measurement of photonuclear D0 production cross section in ultraperipheral PbPb collisions as a function of pT and rapidity, compared to NLO pQCD with nuclear PDFs and CGC predictions.
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Long-lived Axion-Like Particles from Tau Decays
Leptophilic long-lived ALPs produced in tau decays are shown to yield new CHARM/BEBC constraints and improved future sensitivity, particularly at SHiP, extending reach to fa up to 10^8-10^9 GeV in LFV scenarios.
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Studying charm hadronisation into baryons with azimuthal correlations of $\Lambda_{\rm c}^{+}$ with charged particles in pp collisions at $\mathbf{\sqrt{\it s} = 13}$ TeV
First measurement of azimuthal correlations between prompt Lambda_c baryons and charged particles in pp collisions at 13 TeV shows a hint of larger low-pT associated yields than for D mesons.
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Stochastic Dynamics of Heavy Quarks in Strongly Coupled Plasma
Kolmogorov dynamics for heavy quarks in hot plasma shows significantly delayed large-momentum equilibration compared to Fokker-Planck with matched drag, due to rare low-momentum-loss events.
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Energy loss and theoretical uncertainties in small quark-gluon plasmas
A pQCD energy loss model with short-pathlength corrections shows the large formation time approximation fails self-consistently and, after a one-parameter fit, describes RHIC small systems while failing LHC small systems.
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Differential cross-section measurements of $D^{\pm}$ and $D_{s}^{\pm}$ meson production in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
ATLAS reports the first differential D_s± meson cross-section measurement and extends D±/D_s± data to pT = 100 GeV at 13 TeV, finding consistency with NLO QCD within uncertainties.
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Flavor at FASER: Discovering Light Scalars Beyond Minimal Flavor Violation
Flavored scalar models with a Froggatt-Nielsen symmetry make D-meson decays a major production source for long-lived scalars at FASER/FASER2, with reach presented model-independently in branching fraction and lifetime...
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Model-independent method for measuring the angular coefficients of $B^0 \to D^{*-} \tau^+ \nu_{\tau}$ decays
A multidimensional template fit recovers the B0 to D*- tau+ nu_tau angular coefficients unbiasedly and model-independently despite missing neutrino information.
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Nuclear modification of $B_c$ mesons in relativistic heavy-ion collisions based on a linear Boltzmann transport model
A linear Boltzmann transport model with Yukawa and string interactions reproduces the measured B_c nuclear modification in Pb+Pb collisions and predicts larger low-pT B_c R_AA in Au+Au at RHIC than at the LHC.
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Charmonium production at SPS and FAIR energies
Remler formalism with in-medium heavy-quark potential describes charmonium yields at SPS energies and supplies estimates for FAIR energies after calibration on p+p and p+A collisions.
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Study of anisotropic flow of heavy hadrons in Au + Au collisions at $\sqrt{s_{NN}} =$ 200 GeV using HYDJET++ framework
A centrality-tuned HYDJET++ simulation matches STAR charm-hadron elliptic and triangular flow up to pT around 4 GeV/c and predicts v2-v4 for D± and Lambda_c.
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Dissociation and regeneration of charmonia within microscopic Langevin simulations
Charm quarks treated as Brownian particles in a hot medium form, dissociate, and reform charmonia, and the resulting elliptic flow roughly matches ALICE measurements once the strong coupling is tuned to the statistica...
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Charm production and hadronisation in pp and p--Pb collisions at $\sqrt{s_{\rm NN}} = $ 5.02 TeV at the LHC with ALICE
A proceedings summary of already published ALICE charm production measurements in pp and p-Pb collisions, with no new data or analysis.
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