Production of Λ+c baryons in proton-proton and lead-lead collisions at √snn = 5.02 TeV
The transverse momentum (pT) 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 cen...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repositorio: | Repositório Institucional da UFRGS |
| Idioma: | inglés |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/211688 |
| Acceso en línea: | http://hdl.handle.net/10183/211688 |
| Access Level: | acceso abierto |
| Palabra clave: | Aceleradores de partículas Colisao de ions pesados Colisões proton-proton CMS Physics Lambda(c) baryons Nuclear modification factor Heavy flavor |
| Sumario: | The transverse momentum (pT) 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 Λ+c the rapidity interval /y/ < 1 in the pT range of 5–20 GeV/c in pp and 10–20 GeV/c in PbPb collisions. The observed yields Λ+c of for pT of 10–20 GeV/c suggest a suppression in central PbPb collisions compared to collisions scaled by the number of nucleon-nucleon (NN) interactions. The Λ+c/D0 production ratio in collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from collisions in their common pT range. |
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