Author Info

Abstract

We present the first measurements of charge-dependent correlations on angular difference variables η1−η2 (pseudorapidity) and ϕ1−ϕ2 (azimuth) for primary charged hadrons with transverse momentum 0.15⩽pt⩽2 GeV/c and |η|⩽1.3 from Au–Au collisions at . We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings along the beam direction to an at least two-dimensional hadronization geometry along the beam and azimuth directions of a hadron-opaque bulk medium.

Disciplines

Physics

Number of Pages

8

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This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society.

NOTE: At the time of publication, the author Thomas Gutierrez was not yet affiliated with Cal Poly.

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URL: https://digitalcommons.calpoly.edu/phy_fac/523