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Cited by 166

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Centrality dependence of the charged particle multiplicity near midrapidity inAu+Aucollisions atsNN=130and 200 GeV

Open access
Back, B. B., Ballintijn, M., Baker, M. D., Barton, D. S., Betts, R. R., Bickley, A., Bindel, R., Budzanowski, A., Busza, W., Carroll, A., Corbo, J., Decowski, M. P., Garcia, E., George, N., Gulbrandsen, K., Gushue, S., Halliwell, C., Hamblen, J., Heintzelman, G., Henderson, C., Hicks, D., Hofman, D., Hollis, R. S., Hołyński, R., Holzman, B., Iordanova, A., Johnson, E., Kane, J., Katzy, J., Khan, N., Kucewicz, W., Kulinich, P., Kuo, C. M., Lin, W. T., Manly, S., McLeod, D., Michałowski, J., Mignerey, A., Mülmenstädt, J., Nouicer, R., Olszewski, A., Pak, R., Park, I. C., Pernegger, H., Rafelski, M., Rbeiz, M., Reed, C., Remsberg, L. P., Reuter, M., Roland, C., Roland, G., Rosenberg, L., Sagerer, J., Sarin, P., Sawicki, P., Skulski, W., Steadman, S. G., Steinberg, P., Stephans, G. S. F., Stodulski, M., Sukhanov, A., Tang, J.-L., Teng, R., Trzupek, A., Vale, C., van Nieuwenhuizen, G. J., Verdier, R., Wadsworth, B., Wolfs, F. L. H., Wosiek, B., Woźniak, K., Wuosmaa, A. H., Wysłouch, B.·2002·Physical Review C

Abstract

The PHOBOS experiment has measured the charged particle multiplicity at midrapidity in $\mathrm{Au}+\mathrm{Au}$ collisions at $\sqrt{{s}_{\mathrm{NN}}}=200 \mathrm{GeV}$ as a function of the collision centrality. Results on ${\mathrm{dN}}_{\mathrm{ch}}/d\ensuremath{\eta}{|}_{|\ensuremath{\eta}|<1}$ divided by the number of participating nucleon pairs $〈{N}_{\mathrm{part}}〉/2$ are presented as a function of $〈{N}_{\mathrm{part}}〉.$ As was found from similar data at $\sqrt{{s}_{\mathrm{NN}}}=130 \mathrm{GeV},$ the data can be equally well described by parton saturation models and two-component fits, which include contributions that scale as ${N}_{\mathrm{part}}$ and the number of binary collisions ${N}_{\mathrm{coll}}.$ We compare the data at the two energies by means of the ratio ${R}_{200/130}$ of the charged particle multiplicity for the two different energies as a function of $〈{N}_{\mathrm{part}}〉.$ For events with $〈{N}_{\mathrm{part}}〉>100,$ we find that this ratio is consistent with a constant value of $1.14\ifmmode\pm\else\textpm\fi{}0.01(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.05(\mathrm{syst}).$

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Authors
Back, B. B., Ballintijn, M., Baker, M. D., Barton, D. S., Betts, R. R., Bickley, A., Bindel, R., Budzanowski, A., Busza, W., Carroll, A., Corbo, J., Decowski, M. P., Garcia, E., George, N., Gulbrandsen, K., Gushue, S., Halliwell, C., Hamblen, J., Heintzelman, G., Henderson, C., Hicks, D., Hofman, D., Hollis, R. S., Hołyński, R., Holzman, B., Iordanova, A., Johnson, E., Kane, J., Katzy, J., Khan, N., Kucewicz, W., Kulinich, P., Kuo, C. M., Lin, W. T., Manly, S., McLeod, D., Michałowski, J., Mignerey, A., Mülmenstädt, J., Nouicer, R., Olszewski, A., Pak, R., Park, I. C., Pernegger, H., Rafelski, M., Rbeiz, M., Reed, C., Remsberg, L. P., Reuter, M., Roland, C., Roland, G., Rosenberg, L., Sagerer, J., Sarin, P., Sawicki, P., Skulski, W., Steadman, S. G., Steinberg, P., Stephans, G. S. F., Stodulski, M., Sukhanov, A., Tang, J.-L., Teng, R., Trzupek, A., Vale, C., van Nieuwenhuizen, G. J., Verdier, R., Wadsworth, B., Wolfs, F. L. H., Wosiek, B., Woźniak, K., Wuosmaa, A. H., & Wysłouch, B.
Venue
Physical Review C
Published
2002-06-11
Volume
65
Issue
6
ISSN
  • 0556-2813 (ISSN-L)
  • 1089-490X
OpenAlex
W2100963359
Cited by
166
References
1
FWCI
9.92
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Centrality dependence of the charged particle multiplicity near midrapidity inAu+Aucollisions atsNN=130and 200 GeV. https://app.cochat.ai/papers/10.1103/physrevc.65.061901
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Back, B. B., Ballintijn, M., Baker, M. D., Barton, D. S., Betts, R. R., Bickley, A., Bindel, R., Budzanowski, A., Busza, W., Carroll, A., Corbo, J., Decowski, M. P., Garcia, E., George, N., Gulbrandsen, K., Gushue, S., Halliwell, C., Hamblen, J., Heintzelman, G., . . . Wysłouch, B. (2002). Centrality dependence of the charged particle multiplicity near midrapidity inAu+Aucollisions atsNN=130and 200 GeV. Physical Review C. https://doi.org/10.1103/physrevc.65.061901

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