Česky
English
Committee for collaboration of Czech Republic with Joint Institute for Nuclear Research in Dubna Login
Long-range collectivity in small collision systems with two- and four-particle correlations at STAR

Author

Year
2019

Scientific journal
NUCLEAR PHYSICS A 982 475-478

Web


Abstract
New STAR measurements of two- and four-particle (c(2){4}) azimuthal angle correlations are reported for p+Au collisions at 200 GeV and d+Au collisions from 19.6 to 200 GeV. A negative c(2){4), consistent with collective anisotropic flow, is observed in high multiplicity d+Au events at 62.4 and 200 GeV where the statistical significance of the data allows an analysis. A template fitting method, employed to subtract non-flow contributions to the two-particle correlations, allows the extraction of the anisotropy coefficients (v(2)) for these systems at their respective energies. The v(2) results for different energies show a common dependence on the charged particle multiplicity density << dN(ch)/d eta >>, which provide important insight on the nature of collective behavior in small collision systems.

Cite article as:
L. Adamczyk, R. Lednický, "Long-range collectivity in small collision systems with two- and four-particle correlations at STAR ", NUCLEAR PHYSICS A 982 475-478 (2019)