Production of $\Lambda_\mathrm{c}^+$ baryons in proton-proton and lead-lead collisions at $\sqrt{s_\mathrm{NN}}=$ 5.02 TeV

The CMS collaboration
2019.

Abstract
The differential cross sections of $\Lambda_\mathrm{c}^+$ baryon production are measured via the exclusive decay channel $\Lambda_\mathrm{c}^+ \to $pK$^-\pi^+$, as a function of transverse momentum ($p_\mathrm{T}$) in proton-proton (pp) and lead-lead (PbPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV with the CMS detector at the LHC. The measurement is performed within the $\Lambda_\mathrm{c}^+$ rapidity interval $|y|<$1.0 in the $p_\mathrm{T}$ range of 5-20 GeV/$c$ in pp and 10-20 GeV/$c$ in PbPb collisions. The observed yields of $\Lambda_\mathrm{c}^+$ for $p_\mathrm{T}$ of 10-20 GeV/$c$ suggest a possible suppression in central PbPb collisions compared to pp collisions. The $\Lambda_\mathrm{c}^+/$D$^0$ production ratio in pp collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from pp collisions in their common $p_\mathrm{T}$ range.

  • Table 1

    Data from Figure 2

    10.17182/hepdata.88290.v1/t1

    The $p_{T}$-differential cross sections for inclusive $\Lambda_{c}^{+}$ production in pp collisions. The uncertainties associated with the $\Lambda_{c}^{+} \to pK^{-}\pi^{+}$ branching...

  • Table 2

    Data from Figure 2

    10.17182/hepdata.88290.v1/t2

    The $T_{AA}$-scaled yields for inclusive $\Lambda_{c}^{+}$ baryon in three centrality regions of PbPb collisions. The uncertainties associated with the $\Lambda_{c}^{+}...

  • Table 3

    Data from Figure 3

    10.17182/hepdata.88290.v1/t3

    The nuclear modification factor $R_{AA}$ versus $\langle N_\text{part} \rangle$ for inclusive $\Lambda_{c}^{+}$ production in the centrality range $0-100\%$, $0-30\%$ and...

  • Table 4

    Data from Figure 4

    10.17182/hepdata.88290.v1/t4

    The ratio of the production cross sections of inclusive $\Lambda_{c}^{+}$ to prompt $D^{0}$ versus $p_{T}$ from pp collisions. The $20\%$...

  • Table 5

    Data from Figure 4

    10.17182/hepdata.88290.v1/t5

    The ratio of the production cross sections of inclusive $\Lambda_{c}^{+}$ to prompt $D^{0}$ versus $p_{T}$ from $0-100\%$ centrality PbPb collisions....

Loading Data...

Ask a Question


Your question will be emailed to those involved with the submission. Please mention the relevant table.


Please log in to HEPData to send a question.