Open charm production at the LHC - $k_t$-factorization approach

Abstract

We discuss inclusive production of open charm in proton-proton scattering at LHC. The calculation is performed within the $k_t$-factorization approach. Different models of unintegrated gluon distributions (UGDF) from the literature are used. The theoretical transverse momentum as well as (pseudo)rapidity distributions of charmed mesons are compared with recent experimental data of ATLAS, ALICE and LHCb collaborations. Only the calculation with Kimber-Martin-Ryskin (KMR) UGDF gives results comparable to experimental ones. All other popular models of UGDF significantly underpredict experimental data. Several sources of uncertainties of the theoretical predictions are also studied in details. In addition we discuss correlations between $D$ and $\bar{D}$ mesons. Good description of experimental distribution in invariant mass and in relative azimuthal angle between $D$ and $\bar{D}$ mesons is achieved for the KMR UGDF. The considered correlation observables measured by the LHCb experiment were not discussed in other approaches in the literature.

27 pages, 33 figures

References in corpus (15)

• Parton distributions for the LHC
• Dynamical parton distributions of the nucleon and very small-x physics
• Charmed-Meson Fragmentation Functions with Finite-Mass Corrections
• Measurement of the Bottom contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s}$=200 GeV
• Multi-gluon helicity amplitudes with one off-shell leg within high energy factorization
• Open charm hadroproduction and the charm content of the proton
• Production of $c\bar{c}c\bar{c}$ in double-parton scattering within $k_t$-factorization approach -- meson-meson correlations
• Heavy Flavour Production at Tevatron and Parton Shower Effects
• Inclusive b and b anti-b production with quasi-multi-Regge kinematics at the Tevatron
• Nonphotonic electrons at RHIC within $k_t$-factorization approach and with experimental semileptonic decay functions
• A new correlation method to identify and separate charm and bottom production processes at RHIC
• Open charm production at high energies and the quark Reggeization hypothesis
• Kinematical correlations of dielectrons from semileptonic decays of heavy mesons and Drell-Yan processes at BNL RHIC
• Dijet correlations at RHIC, leading-order $k_t$-factorization approach versus next-to-leading order collinear approach
• Charm photoproduction at HERA: kt-factorization versus experimental data

Cited by in corpus (68)

• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Open Heavy Flavor in QCD Matter and in Nuclear Collisions
• The ALICE experiment: a journey through QCD
• Heavy quark pair production in high energy pA collisions: Open heavy flavors
• Measurement of D-meson production at mid-rapidity in pp collisions at $\sqrt{\mathbf{s}}=7$ TeV
• Measurement of prompt D-meson production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• D-meson production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV and in pp collisions at $\sqrt{s}=7$ TeV
• Revisiting the D-meson hadroproduction in general-mass variable flavour number scheme
• ${\Lambda }_{\mathrm{c}}^{+}$ production in pp collisions at $\sqrt{s}=7$ TeV and in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at $\sqrt{\text{s}}=7$ TeV
• Measurement of ${\mathrm{D}}^0$, ${\mathrm{D}}^{+}$, ${\mathrm{D}}^{\ast +}$ and ${{\mathrm{D}}^{+}}_s$ production in pp collisions at $\sqrt{\text{s}}=5.02\mathbf{TeV}$ with ALICE
• Conventional versus single-ladder-splitting contributions to double parton scattering production of two quarkonia, two Higgs bosons and $c\bar{c}c\bar{c}$
• Measurement of electrons from semileptonic heavy-flavor hadron decays in pp collisions at $\sqrt{s}=2.76$ TeV
• Shadowing Effects on $J/\psi$ and ${\rm Y}$ Production at the LHC
• Beauty production in pp collisions at $\sqrt{s}$ = 2.76 TeV measured via semi-electronic decays
• Consistent treatment of charm production in higher-orders at tree-level within $k_T$-factorization approach
• Measurement of azimuthal correlations of D mesons and charged particles in pp collisions at $\sqrt{s}=7$ TeV and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• New mechanisms for double charmed meson production at the LHCb
• Single-parton scattering versus double-parton scattering in the production of two $c\bar{c}$ pairs and charmed meson correlations at the LHC
• Far-forward production of charm mesons and neutrinos at Forward Physics Facilities at the LHC and the intrinsic charm in the proton
• First measurement of ${\Xi }_{\mathrm{c}}^0$ production in pp collisions at $\sqrt{\mathbf{s}}$ = 7 TeV
• Measurement of D-meson production versus multiplicity in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Central ${\mu }^{+}{\mu }^{-}$ production via photon-photon fusion in proton-proton collisions with proton dissociation
• Production of two charm quark-antiquark pairs in single-parton scattering within the $k_t$-factorization approach
• Measurement of the production of charm jets tagged with D${}^0$ mesons in pp collisions at $\sqrt{s}$= 7 TeV
• Production of ${\Lambda }_c$ baryons at the LHC within the $k_T$-factorization approach and independent parton fragmentation picture
• Heavy Flavor Azimuthal Correlations in Cold Nuclear Matter
• $J/\psi$-meson production within improved color evaporation model with the $k_T$-factorization approach for $c\bar{c}$ production
• Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s}=13$ TeV
• Large-p_T production of D mesons at the LHCb in the parton Reggeization approach
• Mapping the dominant regions of the phase space associated with $c\bar{c}$ production relevant for the Prompt Atmospheric Neutrino Flux
• Single- and central-diffractive production of open charm and bottom mesons at the LHC: theoretical predictions and experimental capabilities
• Double scattering production of two positron-electron pairs in ultraperipheral heavy-ion collisions
• Open charm production in the parton Reggeization approach: from Tevatron to LHC
• Low mass Drell-Yan production of lepton pairs at forward directions at the LHC: a hybrid approach
• Prompt inclusive production of $J/\psi$, ${\psi }^{\prime }$ and ${\chi }_c$ mesons at the LHC in forward directions within the NRQCD $k_t$-factorization approach - search for the onset of gluon saturation
• Structure and production mechanism of the enigmatic $X(3872)$ in high-energy hadronic reactions
• D meson production asymmetry, unfavoured fragmentation and consequences for prompt atmospheric neutrino production
• $D$ - meson production at very forward rapidities: estimating the intrinsic charm contribution
• Exploring minijets beyond the leading power
• Charm quark and meson production in association with single-jet at the LHC
• Open charm meson production at BNL RHIC within $k_t$-factorization approach and revision of their semileptonic decays
• Can the triple-parton scattering be observed in open charm meson production at the LHC?
• Inclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at Run 2 LHC energies
• Energy Dependence of Intrinsic Charm Production: What is the Best Energy for Observation?
• Measurement of the production of charm jets tagged with ${\mathrm{D}}^0$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV
• Independent quark/antiquark fragmentation to massive particles in proton-proton collisions
• Heavy-quark production with $k_t$-factorization: The importance of the sea-quark distribution
• Double-parton scattering effects in associated production of charm mesons and dijets at the LHC
• Impact of intrinsic charm amount in the nucleon and saturation effects on the prompt atmospheric ${\nu }_{\mu }$ flux for IceCube
• Inclusive production of Higgs boson in the two-photon channel at the LHC within $k_t$-factorization approach and with the Standard Model couplings
• From $D_s^{\pm }$ production asymmetry at the LHC to prompt ${\nu }_{\tau }$ at IceCube
• Recombination mechanism for $D^0$-meson production and $D^0-\overline{D^0}$ production asymmetry in the LHCb $p+{}^{20}Ne$ fixed-target experiment
• QCD predictions for open charm meson production at the LHCb in fixed-target experiment
• $D$-meson production in high energy $pA$ collisions within the QCD color dipole transverse momentum representation
• Double-parton scattering effects in $D^0{B}^{+}$ and $B^{+}{B}^{+}$ meson-meson pair production in proton-proton collisions at the LHC
• Open Charm Production in $p+p$ and Pb + Pb collisions at the CERN Large Hadron Collider
• Production of forward heavy-flavour dijets at the LHCb within $k_T$-factorization approach
• Hadronization studies at the LHC with ALICE
• Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton$-$proton collisions at $\sqrt{s}=13$ TeV
• Strangeness production in high-multiplicity events
• Open-charm production as a function of charged particle multiplicity in pp collisions at \sqrt{s}=7 TeV with ALICE
• A new parton fragmentation procedure for heavy hadron production in proton-proton collisions
• Measurement of D-meson production in pp, p-Pb, and Pb-Pb collisions at the LHC with the ALICE detector
• Multiplicity, transverse momentum and pseudorapidity dependence of open-heavy flavored hadron production in proton+proton collisions at $\sqrt{s}$= 13 TeV using PYTHIA8
• Open-charm measurements in pp and Pb-Pb collisions at central rapidity with ALICE
• Single-diffractive production of dijets within the $k_t$-factorization approach
• New vistas in charm production