Sirunyan, AM;
Tumasyan, A;
Adam, W;
Ambrogi, F;
Bergauer, T;
Brandstetter, J;
Dragicevic, M;
... Vidal Marono, M; + view all
(2020)
Production of Λ_{c}^{+} baryons in proton-proton and lead-lead collisions at \sqrt{s_{NN}} = 5.02 TeV.
Physics Letters B
, 803
, Article 135328. 10.1016/j.physletb.2020.135328.
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Abstract
The transverse momentum (p_{T}) spectra of inclusively produced Λ_{c}^{+} baryons are measured via the exclusive decay channel Λ_{c}^{+} → pK^{-} π^{+} using the CMS detector at the LHC. Spectra are measured as a function of transverse momentum in proton-proton (pp) and lead-lead (PbPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The measurement is performed within the Λ_{c}^{+} rapidity interval |y| < 1 in the p_{T} range of 5–20 GeV/c in pp and 10–20 GeV/c in PbPb collisions. The observed yields of Λ_{c}^{+} for p_{T} f 10–20 GeV/c suggest a suppression in central PbPb collisions compared to pp collisions scaled by the number of nucleon-nucleon (NN) interactions. The Λ_{c}^{+}/D^{0} production ratio in collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from collisions in their common range.
| Type: | Article |
|---|---|
| Title: | Production of Λ_{c}^{+} baryons in proton-proton and lead-lead collisions at \sqrt{s_{NN}} = 5.02 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.physletb.2020.135328 |
| Publisher version: | http://doi.org/10.1016/j.physletb.2020.135328 |
| Language: | English |
| Additional information: | © 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | CMS Physics, Lambda(c) baryons, Nuclear modification factor, Heavy flavor |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10097472 |
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