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Title page for ETD etd-07212016-131747

Type of Document Dissertation
Author Schaefer, Brennan Christopher
URN etd-07212016-131747
Title Measurements of directed, elliptic, and triangular flow of charged hadrons from Cu+Au collisions at sqrt(sNN) = 200 GeV with PHENIX at RHIC
Degree PhD
Department Physics
Advisory Committee
Advisor Name Title
Professor Julia A. Velkovska Committee Chair
Professor Andreas A. Berlind Committee Member
Professor Charles F. Maguire Committee Member
Professor Sait A. Umar Committee Member
  • RHIC
  • Heavy Ion
  • Physics
  • Nuclear
Date of Defense 2016-04-26
Availability restricted
Measurements of anisotropic flow of inclusive charged hadrons and identified +-p, +-K,

p and ¯ p produced at midrapidity in asymmetric Cu+Au collisions at sqrt(sNN) = 200 GeV are

presented. The data were collected by the PHENIX experiment at the Relativistic Heavy

Ion Collider in 2012. The first three Fourier coefficients in the particles’ azimuthal distributions,

v1, v2, and v3 characterizing directed, elliptic, and triangular flow are studied over

a broad range of transverse momentum and collision centrality. System comparisons are

made with Cu+Cu and Au+Au collisions at the same center-of-mass energy and varying

scaling parameters are used to investigate the effects of the initial geometry. The slopes

of the measured vn distributions are ordered by particle mass as expected in a system with

global flow. The results are well described by viscous hydrodynamics calculations with

shear viscosity over entropy density values close to the quantum minimum.

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