title: Energy dependence of particle multiplicities in central Au+Au collisions.
abstract: We present the first measurement of the pseudorapidity density of primary charged particles in Au+Au collisions at root square[s(NN)] = 200 GeV. For the 6% most central collisions, we obtain dN(ch)/d(eta)/(/eta/<1) = 650+/-35(syst). Compared to collisions at root square[s(NN)] = 130 GeV, the highest energy studied previously, an increase by a factor of 1.14+/-0.05 at 90% confidence level, is found. The energy dependence of the pseudorapidity density is discussed in comparison with data from proton-induced collisions and theoretical predictions.
authors.affiliation: Physics Division, Argonne National Laboratory, Argonne, Illinois 60439-4843, USA.
authors.forename: B B
authors.initials: BB
authors.lastname: Back
authors.forename: M D
authors.initials: MD
authors.lastname: Baker
authors.forename: D S
authors.initials: DS
authors.lastname: Barton
authors.forename: R R
authors.initials: RR
authors.lastname: Betts
authors.forename: R
authors.initials: R
authors.lastname: Bindel
authors.forename: A
authors.initials: A
authors.lastname: Budzanowski
authors.forename: W
authors.initials: W
authors.lastname: Busza
authors.forename: A
authors.initials: A
authors.lastname: Carroll
authors.forename: J
authors.initials: J
authors.lastname: Corbo
authors.forename: M P
authors.initials: MP
authors.lastname: Decowski
authors.forename: E
authors.initials: E
authors.lastname: Garcia
authors.forename: N
authors.initials: N
authors.lastname: George
authors.forename: K
authors.initials: K
authors.lastname: Gulbrandsen
authors.forename: S
authors.initials: S
authors.lastname: Gushue
authors.forename: C
authors.initials: C
authors.lastname: Halliwell
authors.forename: J
authors.initials: J
authors.lastname: Hamblen
authors.forename: C
authors.initials: C
authors.lastname: Henderson
authors.forename: D
authors.initials: D
authors.lastname: Hicks
authors.forename: D
authors.initials: D
authors.lastname: Hofman
authors.forename: R S
authors.initials: RS
authors.lastname: Hollis
authors.forename: R
authors.initials: R
authors.lastname: Hołyński
authors.forename: B
authors.initials: B
authors.lastname: Holzman
authors.forename: A
authors.initials: A
authors.lastname: Iordanova
authors.forename: E
authors.initials: E
authors.lastname: Johnson
authors.forename: J
authors.initials: J
authors.lastname: Kane
authors.forename: J
authors.initials: J
authors.lastname: Katzy
authors.forename: N
authors.initials: N
authors.lastname: Khan
authors.forename: W
authors.initials: W
authors.lastname: Kucewicz
authors.forename: P
authors.initials: P
authors.lastname: Kulinich
authors.forename: C M
authors.initials: CM
authors.lastname: Kuo
authors.forename: W T
authors.initials: WT
authors.lastname: Lin
authors.forename: S
authors.initials: S
authors.lastname: Manly
authors.forename: D
authors.initials: D
authors.lastname: McLeod
authors.forename: J
authors.initials: J
authors.lastname: Michałowski
authors.forename: A
authors.initials: A
authors.lastname: Mignerey
authors.forename: J
authors.initials: J
authors.lastname: Mülmenstädt
authors.forename: R
authors.initials: R
authors.lastname: Nouicer
authors.forename: A
authors.initials: A
authors.lastname: Olszewski
authors.forename: R
authors.initials: R
authors.lastname: Pak
authors.forename: I C
authors.initials: IC
authors.lastname: Park
authors.forename: H
authors.initials: H
authors.lastname: Pernegger
authors.forename: M
authors.initials: M
authors.lastname: Rafelski
authors.forename: M
authors.initials: M
authors.lastname: Rbeiz
authors.forename: C
authors.initials: C
authors.lastname: Reed
authors.forename: L P
authors.initials: LP
authors.lastname: Remsberg
authors.forename: M
authors.initials: M
authors.lastname: Reuter
authors.forename: C
authors.initials: C
authors.lastname: Roland
authors.forename: G
authors.initials: G
authors.lastname: Roland
authors.forename: L
authors.initials: L
authors.lastname: Rosenberg
authors.forename: J
authors.initials: J
authors.lastname: Sagerer
authors.forename: P
authors.initials: P
authors.lastname: Sarin
authors.forename: P
authors.initials: P
authors.lastname: Sawicki
authors.forename: W
authors.initials: W
authors.lastname: Skulski
authors.forename: S G
authors.initials: SG
authors.lastname: Steadman
authors.forename: P
authors.initials: P
authors.lastname: Steinberg
authors.forename: G S F
authors.initials: GS
authors.lastname: Stephans
authors.forename: M
authors.initials: M
authors.lastname: Stodulski
authors.forename: A
authors.initials: A
authors.lastname: Sukhanov
authors.forename: J-L
authors.initials: JL
authors.lastname: Tang
authors.forename: R
authors.initials: R
authors.lastname: Teng
authors.forename: A
authors.initials: A
authors.lastname: Trzupek
authors.forename: C
authors.initials: C
authors.lastname: Vale
authors.forename: G J
authors.initials: GJ
authors.lastname: van Nieuwenhuizen
authors.forename: R
authors.initials: R
authors.lastname: Verdier
authors.forename: B
authors.initials: B
authors.lastname: Wadsworth
authors.forename: F L H
authors.initials: FL
authors.lastname: Wolfs
authors.forename: B
authors.initials: B
authors.lastname: Wosiek
authors.forename: K
authors.initials: K
authors.lastname: Woźniak
authors.forename: A H
authors.initials: AH
authors.lastname: Wuosmaa
authors.forename: B
authors.initials: B
authors.lastname: Wysłouch