Open Charm Production in $p+p$ and Pb + Pb collisions at the CERN Large Hadron Collider

Abstract

Effects of strong longitudinal colour electric fields (SCF), shadowing, and quenching on the open prompt charm mesons (D${}^0$, D${}^{+}$, D${}^{\ast +}$, D${}_s{}^{+}$) production in central Pb + Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV are investigated within the framework of the {\small HIJING/BB v2.0} model. We compute the nuclear modification factor $R_{\mathrm{PbPb}}^{\mathrm{D}}$, and show that the above nuclear effects constitute important dynamical mechanisms in the description of experimental data. The strength of colour fields (as characterized by the string tension $\kappa$), partonic energy loss and jet quenching process lead to a suppression factor consistent with recent published data. Predictions for future beauty mesons measurements have been included. Ratios of strange to non-strange prompt charm mesons in central Pb + Pb and minimum bias (MB) $p+p$ collisions at 2.76 TeV are also discussed. Minimum bias $p+p$ collisions which constitute theoretical baseline in our calculations are studied at the centre of mass energies $\sqrt{s}$ = 2.76 TeV and 7 TeV.

34 pages, 10 figures, revtex4

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Cited by in corpus (4)

• K*(892)${}^0$ and $\Phi$(1020) production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Measurement of D${}^0$-meson + hadron two-dimensional angular correlations in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=$ 200 GeV
• Analysis of identified particle transverse momentum spectra produced in pp, p--Pb and Pb--Pb collisions at the LHC using Tsallis--Pareto-type function
• Multiplicity dependent $p_T$ distributions of identified particles in pp collisions at 7 TeV within HIJING/$B\bar{B}$ v2.0 model