Excitation function of < p(t) > and net charge fluctuations at RHIC
Jan, 200412 pages
Published in:
- Acta Phys.Hung.A 24 (2005) 85-90
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- nucl-ex/0401016 [nucl-ex]
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Abstract:
We present measurements of net charge and transverse momentum fluctuations in Au + Au collisions at ?sNN = 20, 130, and 200 GeV reported in our QM 2004 poster using measures ?+-,dyn and . We observe the dynamical fluctuations are finite at all three energies and exhibit a rather modest dependence on beam energy. We also find both net charge and pt fluctuations violate the trivial 1/N scaling expected for nuclear collisions consisting of independent nucleon-nucleon interactions. We speculate the observed centrality dependence arises due to radial flow and might provide insight on the width and shape of the radial flow profile.Note:
- 11 pages, 7 figures, Poster presented at Quark Matter 2004
- talk: Oakland 2004/01/11
- p p: colliding beams
- nucleus nucleus: colliding beams
- scattering: heavy ion
- gold
- hadron: multiple production
- transverse momentum: fluctuation
- charge: fluctuation
- energy dependence
- scaling: violation
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