Charged meson rapidity distributions in central Au+Au collisions at s(NN)**(1/2) = 200-GeV
By B. C. I. G. Bearden, et al. 2004
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We have measured rapidity densities dN/dy of pi+/- and K+/- over a broad rapidity range (-0.1 < y < 3.5) for central Au + Au collisions at square root(sNN) = 200 GeV. These data have significant implications for the chemistry and dynamics of the dense system that is initially created in the collisions. The full phase-space yields are 1660 +/- 15 +/- 133 (pi+), 1683 +/- 16 +/- 135 (pi-), 286 +/- 5 +/- 23 (K+), and 242 +/- 4 +/- 19 (K-). The systematics of the strange to nonstrange meson ratios are found to track the variation of the baryochemical potential with rapidity and energy. Landau-Carruthers hydrodynamics is found to describe the bulk transport of the pions in the longitudinal direction.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/a7a65d2b35d8ba7425685b9a9f274e9d71827c08
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Citations in the corpus
- Thermal bottomonium suppression at RHIC and LHC (2011, methodology): “For the number density profile in spatial rapidity (ς) we use a Gaussian which successfully describes experimentally observed pion rapidity spectra from AGS to RHIC energies [75–79] and extrapolate this result to LHC energies.”
- Centrality dependence of the pseudorapidity density distribution for charged particles in Pb-Pb collisions at root s(NN)=2.76 TeV (2013, background): “8 of the 〈pT〉 at η = 0 corresponding to approximately twice that seen for pions at RHIC [34].”