Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-HIN-18-009 | ||
| Production of $\Lambda_C^{+}$ baryons in proton-proton and lead-lead collisions at ${\sqrt {\smash [b]{s_{_{\mathrm {NN}}}}}}= $ 5.02 TeV | ||
| CMS Collaboration | ||
| May 2019 | ||
| Abstract: The differential cross sections of $\Lambda_C^{+}$ baryon production are measured via the exclusive decay channel $\Lambda_C^{+}\to \mathrm{p} \mathrm{K}^{-}\pi^{+}$, 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 $\Lambda_C^{+}$ 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 $\Lambda_C^{+}$ for $p_{\mathrm{T}}$ of 10-20 GeV/$c$ suggest a possible suppression in central PbPb collisions compared to pp collisions. The $\Lambda_C^{+} / D^0$ 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. | ||
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Links:
CDS record (PDF) ;
inSPIRE record ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, PLB 803 (2020) 135328. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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