Hadronization geometry from net-charge angular correlations on momentum subspace (η,φ) in Au-Au collisions at VsNN = 130 GeV

Y. Bai; M.A.J. Botje; O. Grebenyuk; A. Mischke; T. Peitzmann; M.J. Russcher; R.J.M. Snellings; N. van der Kolk

Hadronization geometry from net-charge angular correlations on momentum subspace (η,φ) in Au-Au collisions at VsNN = 130 GeV

Y. Bai
, M.A.J. Botje
, O. Grebenyuk
, A. Mischke
, T. Peitzmann
, M.J. Russcher
, R.J.M. Snellings
, N. van der Kolk

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

Abstract

We present the first measurements of charge-dependent correlations on angular difference variables η1 − η2 (pseudorapidity) and φ1 − φ2 (azimuth) for primary charged hadrons with transverse momentum 0.15 pt 2 GeV/c and |η| 1.3 from Au–Au collisions at VSNN = 130 GeV. We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings along the beam direction to an at least two-dimensional hadronization geometry along the beam and azimuth directions of a hadron-opaque bulk medium.

Original language	Undefined/Unknown
Pages (from-to)	347-355
Number of pages	13
Journal	Physics Letters B
Volume	637
Issue number	4
Publication status	Published - 2006

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STAR Collaboration

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@article{a3771505da884eaeb3c30a84b7134808,

title = "Hadronization geometry from net-charge angular correlations on momentum subspace (η,φ) in Au-Au collisions at VsNN = 130 GeV",

abstract = "We present the first measurements of charge-dependent correlations on angular difference variables η1 − η2 (pseudorapidity) and φ1 − φ2 (azimuth) for primary charged hadrons with transverse momentum 0.15 pt 2 GeV/c and |η| 1.3 from Au–Au collisions at VSNN = 130 GeV. We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings along the beam direction to an at least two-dimensional hadronization geometry along the beam and azimuth directions of a hadron-opaque bulk medium.",

author = "Y. Bai and M.A.J. Botje and O. Grebenyuk and A. Mischke and T. Peitzmann and M.J. Russcher and R.J.M. Snellings and \{van der Kolk\}, N.",

note = "STAR Collaboration",

year = "2006",

language = "Undefined/Unknown",

volume = "637",

pages = "347--355",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "4",

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TY - JOUR

T1 - Hadronization geometry from net-charge angular correlations on momentum subspace (η,φ) in Au-Au collisions at VsNN = 130 GeV

AU - Bai, Y.

AU - Botje, M.A.J.

AU - Grebenyuk, O.

AU - Mischke, A.

AU - Peitzmann, T.

AU - Russcher, M.J.

AU - Snellings, R.J.M.

AU - van der Kolk, N.

N1 - STAR Collaboration

PY - 2006

Y1 - 2006

N2 - We present the first measurements of charge-dependent correlations on angular difference variables η1 − η2 (pseudorapidity) and φ1 − φ2 (azimuth) for primary charged hadrons with transverse momentum 0.15 pt 2 GeV/c and |η| 1.3 from Au–Au collisions at VSNN = 130 GeV. We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings along the beam direction to an at least two-dimensional hadronization geometry along the beam and azimuth directions of a hadron-opaque bulk medium.

AB - We present the first measurements of charge-dependent correlations on angular difference variables η1 − η2 (pseudorapidity) and φ1 − φ2 (azimuth) for primary charged hadrons with transverse momentum 0.15 pt 2 GeV/c and |η| 1.3 from Au–Au collisions at VSNN = 130 GeV. We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings along the beam direction to an at least two-dimensional hadronization geometry along the beam and azimuth directions of a hadron-opaque bulk medium.

M3 - Article

SN - 0370-2693

VL - 637

SP - 347

EP - 355

JO - Physics Letters B

JF - Physics Letters B

IS - 4

ER -