HEPData

Abstract (data abstract)

We present measurements of net charge fluctuations in Au+Au collisions at $\sqrt{s_{NN}}$= 19.6, 62.4, 130, and 200 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$= 62.4, 200 GeV, and p+p collisions at $\sqrt{s}$= 200 GeV using the dynamical net charge fluctuations measure $\nu_{+−,dyn}$. We observe that the dynamical fluctuations are non-zero 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/$N_{ch}$ scaling, but display approximate 1/$N_{part}$ 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.

Figure 1

Data from Figure 1

10.17182/hepdata.98972.v1/t1

(Color online) Dynamical net charge fluctuations, $\nu_{+−,dyn}$, of particles produced within pseudorapidity $|\eta|$ < 0.5, as function of the number...
https://www.hepdata.net/record/data/846241yaml https://www.hepdata.net/record/data/846241/csvcsv
Figure 2

Data from Figure 2

10.17182/hepdata.98972.v1/t2

(Color online) Corrected values of dynamical net charge fluctuations ($\nu^{corr}_{+−,dyn}$) as a function of $\sqrt{s_{NN}}$. See text for details.
https://www.hepdata.net/record/data/846242yaml https://www.hepdata.net/record/data/846242/csvcsv
Figure 3 a

Data from Figure 3 a

10.17182/hepdata.98972.v1/t3

(Color online) Dynamical net charge fluctuations, $\nu_{+−,dyn}$, of particles produced with pseudorapidity $|\eta|$ < 0.5 scaled by (a) the multiplicity,...
https://www.hepdata.net/record/data/846243yaml https://www.hepdata.net/record/data/846243/csvcsv
Figure 3 b

Data from Figure 3 b

10.17182/hepdata.98972.v1/t4

(Color online) Dynamical net charge fluctuations, $\nu_{+−,dyn}$, of particles produced with pseudorapidity $|\eta|$ < 0.5 scaled by (a) the multiplicity,...
https://www.hepdata.net/record/data/846244yaml https://www.hepdata.net/record/data/846244/csvcsv
Figure 3 c

Data from Figure 3 c

10.17182/hepdata.98972.v1/t5

(Color online) Dynamical net charge fluctuations, $\nu_{+−,dyn}$, of particles produced with pseudorapidity $|\eta|$ < 0.5 scaled by (a) the multiplicity,...
https://www.hepdata.net/record/data/846245yaml https://www.hepdata.net/record/data/846245/csvcsv
Figure 4 a

Data from Figure 4 a

10.17182/hepdata.98972.v1/t6

(Color online) Dynamical fluctuations $\nu_{+−,dyn}$, normalized to their value for |$\eta$| < 1, as function of the integrated pseudorapidity range....
https://www.hepdata.net/record/data/846246yaml https://www.hepdata.net/record/data/846246/csvcsv
Figure 4 b

Data from Figure 4 b

10.17182/hepdata.98972.v1/t7

(Color online) Dynamical fluctuations $\nu_{+−,dyn}$, normalized to their value for |$\eta$| < 1, as function of the integrated pseudorapidity range....
https://www.hepdata.net/record/data/846247yaml https://www.hepdata.net/record/data/846247/csvcsv
Figure 5 a

Data from Figure 5 a

10.17182/hepdata.98972.v1/t8

(Color online) Dynamical fluctuations $\nu_{+−,dyn}$, as a function of the integrated azimuthal range $\phi$ for selected collision centralities for (a)...
https://www.hepdata.net/record/data/846248yaml https://www.hepdata.net/record/data/846248/csvcsv
Figure 5 b

Data from Figure 5 b

10.17182/hepdata.98972.v1/t9

(Color online) Dynamical fluctuations $\nu_{+−,dyn}$, as a function of the integrated azimuthal range $\phi$ for selected collision centralities for (a)...
https://www.hepdata.net/record/data/846249yaml https://www.hepdata.net/record/data/846249/csvcsv
Figure 6

Data from Figure 6

10.17182/hepdata.98972.v1/t10

(Color online) Dynamical fluctuations $\nu_{+−,dyn}$, as a function of the integrated azimuthal range $\phi$ for similar number of participating nucleons...
https://www.hepdata.net/record/data/846250yaml https://www.hepdata.net/record/data/846250/csvcsv

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