Suppression Pattern of Neutral Pions at High Transverse Momentum in Au plus Au Collisions at root S-NN=200 GeV and Constraints on Medium Transport Coefficients

Date
2008-12-01
Authors
Adare, Andrew
Ogilvie, Craig
Belikov, Sergey
Constantin, Paul
Grau, Nathan
Hill, John
Lajoie, John
Lebedev, Alexandre
Ogilvie, Craig
Pei, H.
Rak, Jan
Rosati, Marzia
Skutnik, S.
Vale, Carla
et al.
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Authors
Research Projects
Organizational Units
Physics and Astronomy
Organizational Unit
Journal Issue
Series
Department
Physics and Astronomy
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.

Comments

This article is published as Adare, A., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh, J. Alexander et al. "Suppression Pattern of Neutral Pions at High Transverse Momentum in Au+ Au Collisions at s N N= 200 GeV and Constraints on Medium Transport Coefficients." Physical review letters 101, no. 23 (2008): 232301. DOI:10.1103/PhysRevLett.101.232301. Posted with permission.

Description
Keywords
Citation
DOI
Collections