Abstract
Charged-pion-interferometry measurements were made with respect to the second- and third-order event plane for Au + Au collisions at √sNN200 GeV. A strong azimuthal-angle dependence of the extracted Gaussian-source radii was observed with respect to both the second- and third-order event planes. The results for the second-order dependence indicate that the initial eccentricity is reduced during the medium evolution, which is consistent with previous results. In contrast, the results for the third-order dependence indicate that the initial triangular shape is significantly reduced and potentially reversed by the end of the medium evolution, and that the third-order oscillations are largely dominated by the dynamical effects from triangular flow.
Original language | American English |
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Article number | 222301 |
Journal | Physical Review Letters |
Volume | 112 |
Issue number | 22 |
DOIs | |
State | Published - 3 Jun 2014 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy