Suppression Pattern of Neutral Pions at High Transverse Momentum in Au plus Au Collisions at root S-NN=200 (Article Number: 232301)

Abstract

For Au Au collisions at 200 GeV, we measure neutral pion production with good statistics for transverse momentum, p(T), up to 20 GeV/c. A fivefold suppression is found, which is essentially constant for 5 { p(T) { 20 GeV/c.

Experimental uncertainties are small enough to constrain any model-dependent parametrization for the transport coefficient of the medium, e. g., {(q) over cap } in the parton quenching model. The spectral shape is similar for all collision classes, and the suppression does not saturate in Au Au collisions.

Keywords

• Suppression
• Pattern
• Neutral
• Pions
• Transverse
• Momentum
• Collisions
• S-NN=200
• Article
• Number
• 232301