Charmed hadron production in an improved quark coalescence model

Abstract

We study the production of charmed hadrons $D^0$ and ${\Lambda }_c^{+}$ in relativistic heavy-ion collisions using an improved quark coalescence model. In particular, we extend the usual coalescence model by letting a produced hadron to have the same velocity as the center-of-mass velocity of coalesced constituent quarks during hadronization to take into account the effect of collective flow in produced quark-gluon plasma. This results in a shift of charmed resonances of higher masses to larger transverse momenta ($p_T^{}$). Requiring all charm quarks of very low $p_T^{}$ to be converted to hadrons via coalescence and letting charm quarks not undergoing coalescence to hadronize by independent fragmentation, we obtain a good description of the measured yield ratio ${\Lambda }_c^{+}/D^0$ as a function of $p_T^{}$ in $\text{Au}+\text{Au}$ collisions at ${\sqrt{s_{NN}}}^{}=200$~GeV by the STAR Collaboration at the Relativistic Heavy Ion Collider.

arXiv comment7 pages, 5 figures

References in corpus (43)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Big-Bang Nucleosynthesis
• Hadronization in heavy ion collisions: Recombination and fragmentation of partons
• Parton coalescence and antiproton/pion anomaly at RHIC
• Parton coalescence at RHIC
• K${}_{\mathrm{S}}^0$ and $\mathrm{\Lambda }$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Heavy Ion Collisions: Achievements and Challenges
• Linearized Boltzmann transport model for jet propagation in the quark-gluon plasma: Heavy quark evolution
• Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Coalescence Models For Hadron Formation From Quark Gluon Plasma
• Heavy-Quark Diffusion and Hadronization in Quark-Gluon Plasma
• ${\mathbf{D}}_{\mathbf{s}}$-Meson as Quantitative Probe of Diffusion and Hadronization in Nuclear Collisions
• Directed Flow of Charm Quarks as a Witness of the Initial Strong Magnetic Field in Ultra-Relativistic Heavy Ion Collisions
• Toward a solution to the $R_{AA}$ and $v_2$ puzzle for heavy quarks
• Heavy-flavour spectra in high energy nucleus-nucleus collisions
• Open heavy flavor in Pb+Pb collisions at sqrt(s)=2.76 TeV within a transport model
• Charmed Hadrons from Coalescence plus Fragmentation in relativistic nucleus-nucleus collisions at RHIC and LHC
• Energy loss, hadronization and hadronic interactions of heavy flavors in relativistic heavy-ion collisions
• Heavy baryon/meson ratios in relativistic heavy ion collisions
• Hadronization and Charm-Hadron Ratios in Heavy-Ion Collisions
• Charm-Baryon Production in Proton-Proton Collisions
• Strangeness Enhancement in Cu+Cu and Au+Au Collisions at \sqrt{s_{NN}} = 200 GeV
• Heavy Flavor in Medium Momentum Evolution: Langevin vs Boltzmann
• Combined analysis of charm-quark fragmentation-fraction measurements
• Centrality and transverse momentum dependence of $D^0$-meson production at mid-rapidity in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200\mathrm{GeV}$
• Quark Coalescence based on a Transport Equation
• Identified hadron compositions in p+p and Au+Au collisions at high transverse momenta at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Elliptic and triangular flow of heavy flavor in heavy-ion collisions
• Heavy flavours in heavy-ion collisions: quenching, flow and correlations
• ${\Lambda }_{\mathrm{c}}^{+}$ production in pp collisions at $\sqrt{s}=7$ TeV and in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Heavy Flavor Hadrons in Statistical Hadronization of Strangeness-rich QGP
• Open and hidden charm in proton-nucleus and heavy-ion collisions
• Charmonium and open charm production in nuclear collisions at SPS/FAIR energies and the possible influence of a hot hadronic medium
• Charge radii of light and heavy mesons
• Λ_{c} enhancement from strongly coupled quark-gluon plasma
• Effect of pre-equilibrium phase on $R_{AA}$ and $v_2$ of heavy quarks in heavy ion collisions
• Development of heavy-flavour flow-harmonics in high-energy nuclear collisions
• Measurements of ${\Lambda }_c^{+}$ and $D_s^{+}$ productions in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV from STAR
• Transport coefficients of heavy baryons
• Heavy quark(onium) at LHC: the statistical hadronization case
• ${\Lambda }_c$ Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV measured by the STAR experiment
• Measurements of open charm hadron production in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV at STAR

Cited by in corpus (19)

• 50 Years of Quantum Chromodynamics
• Jet quenching and medium response in high-energy heavy-ion collisions: a review
• Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective
• First measurement of ${\Lambda }_c$ baryon production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV
• The Present and Future of QCD
• Charmed hadron chemistry in relativistic heavy-ion collisions
• ${\mathrm{\Lambda }}_{\mathrm{c}}^{+}$ production in pp and in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Probing the initial longitudinal density profile and electromagnetic field in ultrarelativistic heavy-ion collisions with heavy quarks
• $X(3872)$ and $T_{cc}$: structures and productions in heavy ion collisions
• Scaling behaviors of heavy flavor meson suppression and flow in different nuclear collision systems at the LHC
• Multi-charmed and singled charmed hadrons from coalescence: yields and ratios in different collision systems at LHC
• Heavy flavor quenching and flow: the roles of initial condition, pre-equilibrium evolution and in-medium interaction
• Charm and beauty isolation from heavy flavor decay electrons in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV at RHIC
• Charmed hadron production via equal-velocity quark combination in ultra-relativistic heavy ion collisions
• Measurement of the ${\Lambda }_c^{+}$ to $D^0$ production cross-section ratio in peripheral PbPb collisions
• Production of doubly charmed hadron ${\Xi }_{cc}^{++}$ and $T_{cc}^{+}$ in relativistic heavy ion collisions
• Interactions between heavy quarks and tilted QGP fireballs in 200 AGeV Au+Au collisions
• Constraining input parameters of AMPT model with $\varphi$ meson production
• Production of Strange and Charm Hadrons in Pb+Pb Collisions at $\sqrt{s_{NN}}=$ 5.02 TeV