Beam-energy and system-size dependence of dynamical net charge fluctuations

B.I. Abelev; Y. Bai; R.J.M. Snellings; M. van Leeuwen; M.J. Russcher; T. Peitzmann; A. Mischke; F. Benedosso; E Braidot; M.A.J. Botje; N. van der Kolk

Beam-energy and system-size dependence of dynamical net charge fluctuations

Translated title of the contribution: Beam-energy and system-size dependence of dynamical net charge fluctuations

B.I. Abelev, Y. Bai, R.J.M. Snellings, M. van Leeuwen, M.J. Russcher, T. Peitzmann, A. Mischke, F. Benedosso, E Braidot, M.A.J. Botje, N. van der Kolk

Medical Physics Group

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

We present measurements of net charge fluctuations in Au+Au collisions at √sNN=19.6, 62.4, 130, and 200 GeV, Cu+Cu collisions at √sNN=62.4 and 200 GeV, and p+p collisions at √s=200 GeV using the dynamical net charge fluctuations measure ν+-,dyn. We observe that the dynamical fluctuations are nonzero at all energies and exhibit a modest dependence on beam energy. A weak system size dependence is also observed. We examine the collision centrality dependence of the net charge fluctuations and find that dynamical net charge fluctuations violate 1/Nch scaling but display approximate 1/Npart scaling. We also study the azimuthal and rapidity dependence of the net charge correlation strength and observe strong dependence on the azimuthal angular range and pseudorapidity widths integrated to measure the correlation.

Translated title of the contribution	Beam-energy and system-size dependence of dynamical net charge fluctuations
Original language	Undefined/Unknown
Pages (from-to)	024906/1-024906/14
Number of pages	14
Journal	Physical Review. C, Nuclear physics
Volume	79
Issue number	2
Publication status	Published - 2009

Cite this

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title = "Beam-energy and system-size dependence of dynamical net charge fluctuations",

abstract = "We present measurements of net charge fluctuations in Au+Au collisions at √sNN=19.6, 62.4, 130, and 200 GeV, Cu+Cu collisions at √sNN=62.4 and 200 GeV, and p+p collisions at √s=200 GeV using the dynamical net charge fluctuations measure ν+-,dyn. We observe that the dynamical fluctuations are nonzero at all energies and exhibit a modest dependence on beam energy. A weak system size dependence is also observed. We examine the collision centrality dependence of the net charge fluctuations and find that dynamical net charge fluctuations violate 1/Nch scaling but display approximate 1/Npart scaling. We also study the azimuthal and rapidity dependence of the net charge correlation strength and observe strong dependence on the azimuthal angular range and pseudorapidity widths integrated to measure the correlation.",

author = "B.I. Abelev and Y. Bai and R.J.M. Snellings and {van Leeuwen}, M. and M.J. Russcher and T. Peitzmann and A. Mischke and F. Benedosso and E Braidot and M.A.J. Botje and {van der Kolk}, N.",

year = "2009",

language = "Undefined/Unknown",

volume = "79",

pages = "024906/1--024906/14",

journal = "Physical Review. C, Nuclear physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

T1 - Beam-energy and system-size dependence of dynamical net charge fluctuations

AU - Abelev, B.I.

AU - Bai, Y.

AU - Snellings, R.J.M.

AU - van Leeuwen, M.

AU - Russcher, M.J.

AU - Peitzmann, T.

AU - Mischke, A.

AU - Benedosso, F.

AU - Braidot, E

AU - Botje, M.A.J.

AU - van der Kolk, N.

PY - 2009

Y1 - 2009

N2 - We present measurements of net charge fluctuations in Au+Au collisions at √sNN=19.6, 62.4, 130, and 200 GeV, Cu+Cu collisions at √sNN=62.4 and 200 GeV, and p+p collisions at √s=200 GeV using the dynamical net charge fluctuations measure ν+-,dyn. We observe that the dynamical fluctuations are nonzero at all energies and exhibit a modest dependence on beam energy. A weak system size dependence is also observed. We examine the collision centrality dependence of the net charge fluctuations and find that dynamical net charge fluctuations violate 1/Nch scaling but display approximate 1/Npart scaling. We also study the azimuthal and rapidity dependence of the net charge correlation strength and observe strong dependence on the azimuthal angular range and pseudorapidity widths integrated to measure the correlation.

AB - We present measurements of net charge fluctuations in Au+Au collisions at √sNN=19.6, 62.4, 130, and 200 GeV, Cu+Cu collisions at √sNN=62.4 and 200 GeV, and p+p collisions at √s=200 GeV using the dynamical net charge fluctuations measure ν+-,dyn. We observe that the dynamical fluctuations are nonzero at all energies and exhibit a modest dependence on beam energy. A weak system size dependence is also observed. We examine the collision centrality dependence of the net charge fluctuations and find that dynamical net charge fluctuations violate 1/Nch scaling but display approximate 1/Npart scaling. We also study the azimuthal and rapidity dependence of the net charge correlation strength and observe strong dependence on the azimuthal angular range and pseudorapidity widths integrated to measure the correlation.

M3 - Article

SN - 0556-2813

VL - 79

SP - 024906/1-024906/14

JO - Physical Review. C, Nuclear physics

JF - Physical Review. C, Nuclear physics

IS - 2

ER -