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Measurement of D-meson production at mid-rapidity in pp collisions at ${\sqrt{s}=7}$  TeV

The ALICE collaboration
Eur.Phys.J. C77 (2017) 550, 2017

Abstract (data abstract)
CERN-LHC. The production cross sections of the prompt charmed mesons $\rm{D}^{0}$, $\rm{D}^{+}$, $\rm D^{*+}$ and $\rm D_{s}$ were measured at mid-rapidity in proton-proton collisions at a centre-of-mass energy $\sqrt{s_{\rm{NN}}}$=7 TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays $\rm{D^{0}}\rightarrow K\pi$, $\rm{D^{+}}\rightarrow K\pi\pi$, $\rm{D}^{*+}\rightarrow \rm{D}^{0}\pi\rightarrow K\pi\pi$, $\rm{D_{s}}\rightarrow\phi\pi\rightarrow K K \pi$ , and their charge conjugates. With respect to previous measurements in the same rapidity region, the coverage in transverse momentum pt is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total c-cbar production cross section is likewise improved. The measured $p_{\rm T}$-differential cross sections are compared with the results of three perturbative QCD calculations.

  • Table 1

    Data from Figure 3

    10.17182/hepdata.78907.v1/t1

    $p_{\rm T}$-differential cross section of prompt $\rm{D}^{0}$ mesons in pp collisions at $\sqrt{s_{\rm{NN}}}$=7 TeV in the rapidity interval $|y|$<0.5. Branching...

  • Table 2

    Data from Figure 3

    10.17182/hepdata.78907.v1/t2

    $p_{\rm T}$-differential cross section of prompt $\rm{D^{+}}$ mesons in pp collisions at $\sqrt{s_{\rm{NN}}}$=7 TeV in the rapidity interval $|y|$<0.5. Branching...

  • Table 3

    Data from Figure 3

    10.17182/hepdata.78907.v1/t3

    $p_{\rm T}$-differential cross section of prompt $\rm D^{*}$ mesons in pp collisions at $\sqrt{s_{\rm{NN}}}$=7 TeV in the rapidity interval $|y|$<0.5....

  • Table 4

    Data from Figure 3

    10.17182/hepdata.78907.v1/t4

    $p_{\rm T}$-differential cross section of prompt $\rm{D_{s}}$ mesons in pp collisions at $\sqrt{s_{\rm{NN}}}$=7 TeV in the rapidity interval $|y|$<0.5. Branching...

  • Table 5

    Data from Figure 8

    10.17182/hepdata.78907.v1/t5

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

  • Table 6

    Data from Figure 8

    10.17182/hepdata.78907.v1/t6

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

  • Table 7

    Data from Figure 8

    10.17182/hepdata.78907.v1/t7

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

  • Table 8

    Data from Figure 8

    10.17182/hepdata.78907.v1/t8

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

  • Table 9

    Data from Table 4, Equation 4,5

    10.17182/hepdata.78907.v1/t9

    Production cross sections per unit of rapidity for prompt $\rm{D}^{0}$ mesons at mid-rapidity in pp collisions at 7 TeV. The...

  • Table 10

    Data from Table4, Equation 4,5

    10.17182/hepdata.78907.v1/t10

    Production cross sections per unit of rapidity for prompt $\rm{D}^{+}$ mesons at mid-rapidity in pp collisions at 7 TeV. The...

  • Table 11

    Data from Table4, Equation 4,5

    10.17182/hepdata.78907.v1/t11

    Production cross sections per unit of rapidity for prompt $\rm D^{*+}$ mesons at mid-rapidity in pp collisions at 7 TeV....

  • Table 12

    Data from Table4, Equation 4,5

    10.17182/hepdata.78907.v1/t12

    Production cross sections per unit of rapidity for prompt $\rm D_{s}$) mesons at mid-rapidity in pp collisions at 7 TeV....

  • Table 13

    Data from Table4, Equation 4,5

    10.17182/hepdata.78907.v1/t13

    Production cross sections per unit of rapidity for charm quarks at mid-rapidity in pp collisions at 7 TeV. The second...

  • Table 14

    Data from Table4, Equation 4,5

    10.17182/hepdata.78907.v1/t14

    value of <$p_{\rm T}$> of prompt $\rm{D}^{0}$ mesons in |$y$|<0.5. The first uncertainty is statistical, the second is the systematic...

  • Table 15

    Data from Equations 6,7

    10.17182/hepdata.78907.v1/t15

    Total production cross sections, extrapolated to the full phase space, for prompt D0 mesons. The second (sys) error is the...

  • Table 16

    Data from Equations 6,7

    10.17182/hepdata.78907.v1/t16

    Total production cross sections, extrapolated to the full phase space, for charm quarks. The second (sys) error is from the...

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