Suppression Pattern of Neutral Pions at High Transverse Momentum in Au + Au Collisions at square root of sNN = 200 GeV and Constraints on Medium Transport Coefficients

Authors

Andrew Marshall Adare
Sergey V. Afanasiev
Christine A. Aidala
N. N. Ajitanand
Yasuyuki Akiba
Gyöngyi Baksay
László A. Baksay
Marcus Hohlmann
S. Rembeczki
Klaus Dehmelt

Document Type

Article

Publication Title

Physical Review Letters

Abstract

For Au þ Au collisions at 200 GeV, we measure neutral pion production with good statistics for transverse momentum, pT, up to 20 GeV=c. A fivefold suppression is found, which is essentially constant for 5 < pT < 20 GeV=c. Experimental uncertainties are small enough to constrain any model-dependent parametrization for the transport coefficient of the medium, e.g., hq^i in the parton quenching model. The spectral shape is similar for all collision classes, and the suppression does not saturate in Au þ Au collisions.

DOI

10.1103/PhysRevLett.101.232301

Publication Date

12-3-2008

Recommended Citation

Adare, A., Afanasiev, S., Aidala, C., Ajitanand, N. N., Akiba, Y., Al-Bataineh, H., . . . Zolin, L. (2008). Suppression pattern of neutral pions at high transverse momentum in Au+Au collisions at sNN=200GeV and constraints on medium transport coefficients. Physical Review Letters, 101(23)