Yield correlations and $p_T$ dependence of charm hadrons in Pb + Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV

Abstract

Recently the ALICE Collaboration has published a few data of charm hadrons in Pb + Pb collisions at the CERN Large Hadron Collider (LHC). We extend the quark combination to the charm sector and point out that the measurement of charm hadron yields can provide important insights into charm quark hadronization mechanism and properties of the hot and dense matter produced in high energy reactions. We propose several types of yield ratios, e.g. $D^{\ast +}/D^0$, $D_s^{+}/D^{+}$ and ${\Lambda }_c^{+}/D_s^{+}$, to measure various properties of low $p_T$ charm quark hadronization. We argue that ratios $D_s^{+}/D^0$ and $2D_s^{+}/(D^0+D^{+})$ as the function of transverse momentum can serve as good probes for the dynamics of charm quark hadronization. We further make predictions for the yields and $p_T$ spectra of identified charm hadrons in central Pb + Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV.

7 pages,2 figs

References in corpus (14)

• K${}_{\mathrm{S}}^0$ and $\mathrm{\Lambda }$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Multi-strange baryon production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• 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
• Heavy quark dynamics and hadronization in ultra-relativistic heavy-ion collisions: collisional versus radiative energy loss
• Color Screening Melts Quarkonium
• ${\mathbf{D}}_{\mathbf{s}}$-Meson as Quantitative Probe of Diffusion and Hadronization in Nuclear Collisions
• $\varphi$ and $\Omega$ production in relativistic heavy ion collisions in a dynamical quark coalescence model
• Thermal Charm Production in Quark-Gluon Plasma at LHC
• Hadron production by quark combination in central Pb+Pb collisions at $\sqrt{s_{NN}}=17.3$ GeV
• B_c meson enhancement and the momentum dependence in Pb+Pb collisions at LHC energy
• Charged-particle rapidity density in Au+Au collisions in a quark combination model
• Tests of the Quark-Gluon Plasma Coupling Strength at Early Times with Heavy Quarks
• Charm hadron production in relativistic heavy ion collisions within a quark combination model
• $K^{\ast 0}$ and ${\Sigma }^{\ast }$ production in Au+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV and 62.4 GeV

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