Naslov
Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior

Autori
Aidala, C. ; ... ; Dumancic, Mirta ; ... ; Makek, Mihael ; ... ; Vukman, Nikola ; ... ; Zou, L.

Kolaboracija
PHENIX Collaboration

Izvornik
Physical review letters (0031-9007) 120 (2018), 6; 062302, 8

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Multiparticle Correlations ; d+Au ; p+Au ; 200 GeV ; PHENIX ; RHIC

Sažetak
Recently, multiparticle-correlation measurements of relativistic p/d/He3+Au, p+Pb, and even p+p collisions show surprising collective signatures. Here, we present beam-energy-scan measurements of two-, four-, and six-particle angular correlations in d+Au collisions at sNN=200, 62.4, 39, and 19.6 GeV. We also present measurements of two- and four-particle angular correlations in p+Au collisions at sNN=200 GeV. We find the four-particle cumulant to be real valued for d+Au collisions at all four energies. We also find that the four-particle cumulant in p+Au has the opposite sign as that in d+Au. Further, we find that the six-particle cumulant agrees with the four-particle cumulant in d+Au collisions at 200 GeV, indicating that nonflow effects are subdominant. These observations provide strong evidence that the correlations originate from the initial geometric configuration, which is then translated into the momentum distribution for all particles, commonly referred to as collectivity.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA