Observation of correlated azimuthal anisotropy Fourier harmonics in pp and p+Pb сollisions at the LHCстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 17 апреля 2018 г.
Аннотация:The azimuthal anisotropy Fourier coefficients (vn) in 8.16 TeV pPb data are extracted via long-range two-particle correlations as a function of event multiplicity and compared to corresponding results in pp and PbPb collisions. Using a four-particle cumulant technique, vn correlations are measured for the first time in pp and pPb collisions. The v2 and v4 coefficients are found to be positively correlated in all collision systems. For high multiplicity pPb collisions an anticorrelation of v2 and v3 is observed, with a similar correlation strength as in PbPb data at the same multiplicity. The new correlation results strengthen the case for a common origin of the collectivity seen in pPb and PbPb collisions in the measured multiplicity range.