Measurements of prompt charm production cross-sections in $pp$ collisions at $\sqrt{s}=5$TeV

Abstract

Production cross-sections of prompt charm mesons are measured using data from $pp$ collisions at the LHC at a centre-of-mass energy of $5$TeV. The data sample corresponds to an integrated luminosity of $8.60\pm 0.33$pb${}^{-1}$ collected by the LHCb experiment. The production cross-sections of $D^0$, $D^{+}$, $D_s^{+}$, and $D^{\ast +}$ mesons are measured in bins of charm meson transverse momentum, $p_{\text{T}}$, and rapidity, $y$. They cover the rapidity range $2.0<y<4.5$ and transverse momentum ranges $0<p_{\text{T}}<10\text{GeV}/c$ for $D^0$ and $D^{+}$ and $1<p_{\text{T}}<10\text{GeV}/c$ for $D_s^{+}$ and $D^{\ast +}$ mesons. The inclusive cross-sections for the four mesons, including charge-conjugate states, within the range of $1<p_{\text{T}}<8\text{GeV}/c$ are determined to be σ(pp\rightarrow D^0 X) = 1004 \pm 3 \pm 54\,μ\text{b} σ(pp\rightarrow D^+ X) = 402 \pm 2 \pm 30\,μ\text{b} σ(pp\rightarrow D_s^+ X) = 170 \pm 4 \pm 16\,μ\text{b} σ(pp\rightarrow D^{*+} X)= 421 \pm 5 \pm 36\,μ\text{b} where the uncertainties are statistical and systematic, respectively.

All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-042.html

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