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Measurement of ${\rm D^0}$, ${\rm D^+}$, ${\rm D^{*+}}$ and ${{\rm D^+_s}}$ production in pp collisions at $\mathbf{\sqrt{{\textit s}}~=~5.02~TeV}$ with ALICE

The ALICE collaboration
No Journal Information, 2019

Abstract (data abstract)
CERN-LHC. The measurements of the production of prompt $\rm{D}^{0}$, $\rm{D}^{+}$, $\rm D^{*+}$ and $\rm D_{s}$ mesons in proton-proton (pp) collisions at $\sqrt{s_{\rm{NN}}}$=5.02 TeV with the ALICE detector at the Large Hadron Collider (LHC) are reported. D mesons were reconstructed at mid-rapidity ($|y|<0.5$) via their hadronic decay channels $\rm{D^{0}}\rightarrow K\pi$, $\rm{D^{+}}\rightarrow K\pi\pi$, $\rm{D}^{*+}\rightarrow \rm{D}^{0}\pi\rightarrow K\pi\pi$, $\rm{D_{s}}\rightarrow\phi\pi\rightarrow K K \pi$, and their charge conjugates. The production cross sections were measured in the transverse momentum interval 0<$p_{\rm T}$<36 GeV/$c$ for $\rm{D}^{0}$, 1<$p_{\rm T}$<36 GeV/$c$ for $\rm{D}^{+}$ and $\rm D^{*+}$, and in 2<$p_{\rm T}$<24 GeV/$c$ for $\rm D_{s}$ mesons. Thanks to the higher integrated luminosity, an analysis in finer $p_{\rm T}$ bins with respect to the previous measurements at $\sqrt{s}$=7 Tev was performed, allowing for a more detailed description of the cross-section $p_{\rm T}$ shape. The measured $p_{\rm T}$-differential production cross sections are compared to the results at $\sqrt{s}$=7 TeV and to four different perturbative QCD calculations. Its rapidity dependence is also tested combining the ALICE and LHCb measurements in pp collisions at $\sqrt{s}$=5.02 TeV. This measurement will allow for a more accurate determination of the nuclear modification factor in p-Pb and Pb-Pb collisions performed at the same nucleon-nucleon centre-of-mass energy.

  • Table 1

    Data from Figure 7

    10.17182/hepdata.89326.v1/t1

    $p_{\rm T}$-differential cross section of prompt $\rm{D}^{0}$ mesons in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02 TeV in the rapidity interval $|y|$<0.5. Branching...

  • Table 2

    Data from Figure 7

    10.17182/hepdata.89326.v1/t2

    $p_{\rm T}$-differential cross section of prompt $\rm{D^{+}}$ mesons in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02 TeV in the rapidity interval $|y|$<0.5. Branching...

  • Table 3

    Data from Figure 7

    10.17182/hepdata.89326.v1/t3

    $p_{\rm T}$-differential cross section of prompt $\rm D^{*}$ mesons in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02 TeV in the rapidity interval $|y|$<0.5....

  • Table 4

    Data from Figure 7

    10.17182/hepdata.89326.v1/t4

    $p_{\rm T}$-differential cross section of prompt $\rm{D_{s}}$ mesons in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02 TeV in the rapidity interval $|y|$<0.5. Branching...

  • Table 5

    Data from Figure 12

    10.17182/hepdata.89326.v1/t5

    $p_{\rm T}$-differential cross section of inclusive $\rm{D}^{0}$ mesons (including also $\rm{D}^{0}$ mesons from beauty-hadron decays) in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02...

  • Table 6

    Data from Figure 13

    10.17182/hepdata.89326.v1/t6

    Ratio of $\rm {D}^{+}$ to $\rm{D}^{0}$ meson yield in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02 TeV in |y|<0.5 as a function of...

  • Table 7

    Data from Figure 13

    10.17182/hepdata.89326.v1/t7

    Ratio of $\rm {D}^{*+}$ to $\rm{D}^{0}$ meson yield in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02 TeV in |y|<0.5 as a function of...

  • Table 8

    Data from Figure 13

    10.17182/hepdata.89326.v1/t8

    Ratio of $\rm {D}_{s}$ to $\rm{D}^{0}$ meson yield in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02 TeV in |y|<0.5 as a function of...

  • Table 9

    Data from Figure 13

    10.17182/hepdata.89326.v1/t9

    Ratio of $\rm {D}_{s}$ to $\rm {D}^{+}$ meson yield in pp collisions at $\sqrt{\rm{s_{NN}}}$=5.02 TeV in |y|<0.5 as a function...

  • Table 10

    Data from Figure 13

    10.17182/hepdata.89326.v1/t10

    Ratio of $\rm {D}^{+}$ to $\rm{D}^{0}$ meson yield in pp collisions at $\sqrt{\rm{s_{NN}}}$=7 TeV in |y|<0.5 as a function of...

  • Table 11

    Data from Figure 13

    10.17182/hepdata.89326.v1/t11

    Ratio of $\rm {D}^{*+}$ to $\rm{D}^{0}$ meson yield in pp collisions at $\sqrt{\rm{s_{NN}}}$=7 TeV in |y|<0.5 as a function of...

  • Table 12

    Data from Figure 13

    10.17182/hepdata.89326.v1/t12

    Ratio of $\rm {D}_{s}$ to $\rm{D}^{0}$ meson yield in pp collisions at $\sqrt{\rm{s_{NN}}}$=7 TeV in |y|<0.5 as a function of...

  • Table 13

    Data from Figure 13

    10.17182/hepdata.89326.v1/t13

    Ratio of $\rm {D}_{s}$ to $\rm {D}^{+}$ meson yield in pp collisions at $\sqrt{\rm{s_{NN}}}$=7 TeV in |y|<0.5 as a function...

  • Table 14

    Data from Figure 14

    10.17182/hepdata.89326.v1/t14

    Ratios of $\rm {D}^{0}$-mesons production cross sections in pp collisions at $\sqrt{\rm{s_{NN}}}$=7 TeV and $\sqrt{\rm{s_{NN}}}$=5.02 TeV as a function of...

  • Table 15

    Data from Figure 14

    10.17182/hepdata.89326.v1/t15

    Ratios of $\rm {D}^{+}$-mesons production cross sections in pp collisions at $\sqrt{\rm{s_{NN}}}$=7 TeV and $\sqrt{\rm{s_{NN}}}$=5.02 TeV as a function of...

  • Table 16

    Data from Figure 14

    10.17182/hepdata.89326.v1/t16

    Ratios of $\rm {D}^{*+}$-mesons production cross sections in pp collisions at $\sqrt{\rm{s_{NN}}}$=7 TeV and $\sqrt{\rm{s_{NN}}}$=5.02 TeV as a function of...

  • Table 17

    Data from Figure 14

    10.17182/hepdata.89326.v1/t17

    Ratios of $\rm{D_{s}}$-mesons production cross sections in pp collisions at $\sqrt{\rm{s_{NN}}}$=7 TeV and $\sqrt{\rm{s_{NN}}}$=5.02 TeV as a function of $p_{\rm...

  • Table 18

    Data from Table4, Formula 3

    10.17182/hepdata.89326.v1/t18

    First Column: Production cross sections for prompt D mesons (D0, D+, D*+ and D_s) at mid-rapidity in |y|<0.5 and full...

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