Relative particle yield fluctuations in Pb–Pb collisions at √sNN = 2.76 TeV
dc.contributor.author | Acharya, Shreyasi | pt_BR |
dc.contributor.author | Gay Ducati, Maria Beatriz | pt_BR |
dc.contributor.author | Pereira, Luis Gustavo | pt_BR |
dc.contributor.author | Pezzi, Rafael Peretti | pt_BR |
dc.contributor.author | ALICE Collaboration | pt_BR |
dc.date.accessioned | 2019-06-01T02:40:01Z | pt_BR |
dc.date.issued | 2019 | pt_BR |
dc.identifier.issn | 1434-6044 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/194954 | pt_BR |
dc.description.abstract | First results on K/π, p/π and K/p fluctuations are obtained with the ALICE detector at the CERN LHC as a function of centrality in Pb–Pb collisions at √ sNN = 2.76 TeV. The observable νdyn, which is defined in terms of the moments of particle multiplicity distributions, is used to quantify the magnitude of dynamical fluctuations of relative particle yields and also provides insight into the correlation between particle pairs. This study is based on a novel experimental technique, called the Identity Method, which allows one to measure the moments of multiplicity distributions in case of incomplete particle identification. The results for p/π show a change of sign in νdyn from positive to negative towards more peripheral collisions. For central collisions, the results follow the smooth trend of the data at lower energies and νdyn exhibits a change in sign for p/π and K/p. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The European physical journal. C, Particles and fields. Berlin. Vol. 79, no. 3 (Mar. 2019), 236, 14 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Colisao de ions pesados | pt_BR |
dc.subject | Quarks | pt_BR |
dc.title | Relative particle yield fluctuations in Pb–Pb collisions at √sNN = 2.76 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001091439 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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