Publication: Production of lambda(+)(c) baryons in proton-proton and lead-lead collisions at root S-NN=5.02 TeV
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Abstract
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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Fizik, Astronomi ve Astrofizik, Temel Parçacıklar ve Alanlar, Temel Bilimler, Physics, Astronomy and Astrophysics, Basic Particles and Areas, Natural Sciences, ASTRONOMİ VE ASTROFİZİK, Uzay bilimi, Temel Bilimler (SCI), FİZİK, NÜKLEER, FİZİK, PARÇACIKLAR VE ALANLAR, ASTRONOMY & ASTROPHYSICS, SPACE SCIENCE, Natural Sciences (SCI), PHYSICS, NUCLEAR, PHYSICS, PHYSICS, PARTICLES & FIELDS, Nükleer ve Yüksek Enerji Fiziği, Fizik ve Astronomi (çeşitli), Genel Fizik ve Astronomi, Uzay ve Gezegen Bilimi, Fizik Bilimleri, Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous), General Physics and Astronomy, Space and Planetary Science, Physical Sciences, CMS, Lambda(c) baryons, Nuclear modification factor, Heavy flavor, PB-PB COLLISIONS, J/PSI SUPPRESSION, RAPIDITY, Physics, Lambda(c) baryons, Nuclear modification factor, Heavy flavor
Citation
Sirunyan A. M., Tumasyan A., Adam W., Ambrogi F., Bergauer T., Brandstetter J., Dragicevic M., Eroe J., Del Valle A. E., Flechl M., et al., "Production of Lambda(+)(c) baryons in proton-proton and lead-lead collisions at root S-NN=5.02 TeV", PHYSICS LETTERS B, cilt.803, 2020