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Title
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Production of baryons in proton-proton and lead-lead collisions at =5.02 TeV
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| The transverse momentum (P-T) spectra of inclusively produced A c P baryons are measured via the exclusive decay channel Lambda(+)(c) -> pK(-)pi(+) 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 nucleonnucleon center-of-mass energy of 5.02TeV. The measurement is performed within the Lambda(+)(c) rapidity interval vertical bar Y vertical bar < 1 in the p(T) range of 5-20GeV/c in pp and 10-20GeV/c in PbPb collisions. The observed yields of Lambda(+)(c) for p(T) of 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 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-r range. (C) 2020 The Author(s). Published by Elsevier B.V. |
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Language
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English
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Source (journal)
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Physics letters : B. - Amsterdam, 1967, currens
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Publication
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Amsterdam
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North-Holland
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2020
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ISSN
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0370-2693
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DOI
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10.1016/J.PHYSLETB.2020.135328
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Volume/pages
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803
(2020)
, p. 1-23
, 23 p.
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Article Reference
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135328
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ISI
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000521730300049
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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