Article
Suppressed pi(0) production at large transverse momentum in central Au plus Au collisions at root s(NN)=200 GeV
Physical Review Letters
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
8-1-2003
DOI
10.1103/PhysRevLett.91.072301
Abstract
Transverse momentum spectra of neutral pions in the range 1 < p(T) < 10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in Au+Au collisions at roots(NN)=200 GeV. The pi(0) multiplicity in central reactions is significantly below the yields measured at the same roots(NN) in peripheral Au+Au and p+p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is similar to 2.5 at p(T)=2 GeV/c and increases to similar to 4-5 at p(T) approximate to 4 GeV/c. At larger p(T), the suppression remains constant within errors. The deficit is already apparent in semiperipheral reactions and increases smoothly with centrality.
Copyright Owner
American Physical Society
Copyright Date
2003
Language
en
File Format
application/pdf
Citation Information
S. S. Adler, Sergey Belikov, S. Bhagavatula, Paul Constantin, et al.. "Suppressed pi(0) production at large transverse momentum in central Au plus Au collisions at root s(NN)=200 GeV" Physical Review Letters Vol. 91 Iss. 7 (2003) p. 072301 Available at: http://works.bepress.com/craig-ogilvie/216/
This article is published as Adler, Stephen Scott, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas et al. "Suppressed π0 Production at Large Transverse Momentum in Central Au+ Au Collisions at sNN = 200 GeV." Physical Review Letters 91, no. 7 (2003): 072301. DOI:10.1103/PhysRevLett.91.072301. Posted with permission.