Observation of correlated azimuthal anisotropy fourier harmonics in pp and p+Pb collisions at the LHC

The azimuthal anisotropy Fourier coefficients (vn) in 8.16 TeV p+Pb data are extracted via long-range two-particle correlations as a function of the event multiplicity and compared to corresponding results in pp and PbPb collisions. Using a four-particle cumulant technique, vn correlations are measu...

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Bibliographic Details
Main Authors: Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
Format: Article
Language:English
English
English
Published: American Physical Society 2018
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Online Access:http://irep.iium.edu.my/65070/
http://irep.iium.edu.my/65070/
http://irep.iium.edu.my/65070/
http://irep.iium.edu.my/65070/1/65070_Observation%20of%20Correlated%20Azimuthal%20Anisotropy_article.pdf
http://irep.iium.edu.my/65070/2/65070_Observation%20of%20Correlated%20Azimuthal%20Anisotropy_scopus.pdf
http://irep.iium.edu.my/65070/13/65070_Observation%20of%20correlated%20azimuthal%20anisotropy_WoS.pdf
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Summary:The azimuthal anisotropy Fourier coefficients (vn) in 8.16 TeV p+Pb data are extracted via long-range two-particle correlations as a function of the 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 p+Pb collisions. The v2 and v4 coefficients are found to be positively correlated in all collision systems. For high-multiplicity p+Pb 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 p+Pb and PbPb collisions in the measured multiplicity range.