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Journal articles
Charged meson rapidity distributions in central Au+Au collisions at $\sqrt{s_{NN}$ = 200 GeV
I.G. Bearden
D. Beavis
C. Besliu
B. Budick
H. Boggild
C. Chasman
C.H. Christensen
P. Christiansen
J. Cibor
R. Debbe
E. Enger
J.J. Gaardhoje
M. Germinario
K. Hagel
O. Hansen
A. Holm
A.K. Holme
H. Ito
A. Jipa
F. Jundt
1
J.I. Jordre
C.E. Jorgensen
R. Karabowicz
E.J. Kim
T. Kozik
T.M. Larsen
J.H. Lee
Y.K. Lee
G. Lovhoiden
Z. Majka
A. Makeev
M. Mikelsen
M. Murray
J. Natowitz
B.S. Nielsen
J. Norris
K. Olchanski
D. Ouerdane
R. Planeta
F. Rami
1
C. Ristea
D. Röhrich
B.H. Samset
D. Sandberg
S.J. Sanders
R.A. Sheetz
P. Staszel
T.S. Tveter
F. Videbaek
R. Wada
Z. Yin
I.S. Zgura
1
IReS - Institut de Recherches Subatomiques (23 rue du Loess - BP 28 - 67037 Strasbourg Cedex 2 - France)
Abstract : We have measured rapidity densities $dN/dy$ of $\pi^{\pm}$ and $K^{\pm}$ over a broad rapidity range (-0.1 < y < 3.5) for central Au+Au collisions at $\sqrt{^{s}NN}$ = 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 $1660\pm15\pm133(\pi^{+})$, $1683\pm16\pm135(\pi^{-})$, $286\pm5\pm23(K^{+})$ and $242\pm4\pm19(K^{-})$. The systematics of the strange to non--strange meson ratios are found to track the variation of the baryo-chemical potential with rapidity and energy. Landau--Carruthers hydrodynamic is found to describe the bulk transport of the pions in the longitudinal direction.
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http://hal.in2p3.fr/in2p3-00023208
Contributor : Yvette Heyd Connect in order to contact the contributor
Submitted on : Tuesday, October 12, 2004 - 10:18:19 AM
Last modification on : Thursday, April 23, 2020 - 2:26:21 PM
Contributor : Yvette Heyd Connect in order to contact the contributor
Submitted on : Tuesday, October 12, 2004 - 10:18:19 AM
Last modification on : Thursday, April 23, 2020 - 2:26:21 PM
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- HAL Id : in2p3-00023208, version 1
- ARXIV : nucl-ex/0403050
- DOI : 10.1103/PhysRevLett.94.162301
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I.G. Bearden, D. Beavis, C. Besliu, B. Budick, H. Boggild, et al.. Charged meson rapidity distributions in central Au+Au collisions at $\sqrt{s_{NN}$ = 200 GeV. Physical Review Letters, American Physical Society, 2005, 94, pp.162301-1-162301-4. ⟨10.1103/PhysRevLett.94.162301⟩. ⟨in2p3-00023208⟩
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