par Tumasyan, A.;Beghin, Diego
;Bilin, Bugra
;Clerbaux, Barbara
;De Lentdecker, Gilles
;Favart, Laurent
;Grebenyuk, Anastasia
;Kalsi, Amandeep Kaur
;Lee, Kyeongpil
;Mahdavikhorrami, Mostafa
;Makarenko, Inna
;Moureaux, Louis
;Pétré, Laurent
;Popov, Andrey
;Postiau, Nicolas
;Starling, Elizabeth Rose
;Thomas, Laurent
;Vanden Bemden, Max
;Vander Velde, Catherine
;Vanlaer, Pascal
;Malara, Andrea
; [et al.]
Référence The Journal of high energy physics, 2023, 05, 007
Publication Publié, 2023-01-01




















Référence The Journal of high energy physics, 2023, 05, 007
Publication Publié, 2023-01-01
Article révisé par les pairs
Résumé : | The collective behavior of and strange hadrons is studied by measuring the elliptic azimuthal anisotropy (v2) using the scalar-product and multiparticle correlation methods. Proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy = 8.16 TeV and lead-lead (PbPb) collisions at = 5.02 TeV collected by the CMS experiment at the LHC are investigated. Nonflow effects in the pPb collisions are studied by using a subevent cumulant analysis and by excluding events where a jet with transverse momentum greater than 20 GeV is present. The strange hadron v2 values extracted in pPb collisions via the four- and six-particle correlation method are found to be nearly identical, suggesting the collective behavior. Comparisons of the pPb and PbPb results for both strange hadrons and charged particles illustrate how event-by-event flow fluctuations depend on the system size. |