Year: 2001
Type: article
Abstract: The charged-particle pseudorapidity density ${\mathrm{dN}}_{\mathrm{ch}}/d\ensuremath{\eta}$ has been measured for $\mathrm{Au}+\mathrm{Au}$ collisions at $\sqrt{{s}_{\mathrm{NN}}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}130\mathrm{GeV}$ at RHIC, using the PHOBOS apparatus. The total number of charged particles produced for the $3%$ most-central $\mathrm{Au}+\mathrm{Au}$ collisions for $|\ensuremath{\eta}|\ensuremath{\le}5.4$ is found to be $4200\ifmmode\pm\else\textpm\fi{}470$. The evolution of ${\mathrm{dN}}_{\mathrm{ch}}/d\ensuremath{\eta}$ with centrality is discussed, and compared to model calculations and to data from proton-induced collisions. The data show an enhancement in charged-particle production at midrapidity, while in the fragmentation regions, the results are consistent with expectations from $\mathrm{pp}$ and $\mathrm{pA}$ scattering.
Source: Physical Review Letters
Authors: B. B. Back, M. D. Baker, D. S. Barton, R. R. Betts, R. Bindel, A. Budzanowski, W. Busza, A. Carroll, M. P. Decowski, E. Garcia, N. George, K. Gulbrandsen, S. Gushue, C. Halliwell, G. A. Heintzelman, C. Henderson, D. J. Hofman, R. Hołyński, B. Holzman, E. Johnson, J. L. Kane, J. Katzy, N. Khan, W. Kucewicz, P. Kulinich, W. T. Lin, S. Manly, D. McLeod, J. Michałowski, A. C. Mignerey, J. Mülmenstädt, R. Nouicer, A. Olszewski, R. Pak, I. C. Park, H. Pernegger, C. Reed, L. P. Remsberg, M. Reuter, C. Roland, G. Roland, L. Rosenberg, P. Sarin, P. Sawicki, W. Skulski, S. G. Steadman, P. Steinberg, G. S. F. Stephans, M. Stodulski, A. Sukhanov, J.-L. Tang, R. Teng, A. Trzupek, C. Vale, G. J. van Nieuwenhuizen, R. Verdier, B. Wadsworth, F. L. H. Wolfs, B. Wosiek, K. Woźniak, A. H. Wuosmaa, B. Wysłouch
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2151576812