Production of Λc+ baryons in proton-proton and lead-lead collisions at sNN=5.02TeV
Abstract
The transverse momentum (pT) spectra of inclusively produced Λc + baryons are measured via the exclusive decay channel Λc +→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 Λc + rapidity interval |y|<1 in the pT range of 5–20GeV/c in pp and 10–20GeV/c in PbPb collisions. The observed yields of Λc + for pT of 10–20GeV/c suggest a suppression in central PbPb collisions compared to pp collisions scaled by the number of nucleon-nucleon (NN) interactions. The Λc +/D0 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 pT range. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000403812Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy PhysicsBand
Seiten / Artikelnummer
Verlag
ElsevierThema
CMS; Physics; Lambda(c) baryons; Nuclear modification factor; Heavy flavorOrganisationseinheit
03593 - Dissertori, Günther / Dissertori, Günther
03904 - Wallny, Rainer / Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)
09720 - de Cosa, Annapaola / de Cosa, Annapaola