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Ultra-relativistic Au+Au and d+Au collisions:: Experimental studies by PHOBOS.

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Title: Ultra-relativistic Au+Au and d+Au collisions:: Experimental studies by PHOBOS.
Authors: Back, B. B.1, Baker, M. D.2, Ballintijn, M.3, Barton, D. S.2, Betts, R. R.4, Bickley, A. A.5, Bindel, R.5, Budzanowski, A.6, Busza, W.3, Carroll, A.2, Chai, Z.2, Decowski, M. P.3, García, E.4, Gburek, T.6, George, N.1,2, Gulbrandsen, K.3, Gushue, S.2, Halliwell, C.4, Hamblen, J.7, Hauer, M.2
Source: International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics. 7/30/2005, Vol. 20 Issue 19, p4405-4411. 7p.
Subjects: Particles (Nuclear physics), Phobos (Satellite), Gold, Collisions (Nuclear physics), Nuclear fragmentation, Distribution (Probability theory)
Abstract: In this talk I will review PHOBOS data on charged particle multiplicities, obtained in Au+Au and d+Au collisions at RHIC. The general features of the Au+Au pseudorapidity distributions results will be discussed and compared to those of $\overline{p}p$ collisions. The total charged particle multiplicity, scaled by the number of participant pairs, is observed to be about 40% higher in Au+Au collisions than in $\overline{p}p$ and d+Au systems, but, surprisingly at the same level of e+e- collisions. Limiting fragmentation scaling is seen to be obeyed in Au+Au collisions. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:In this talk I will review PHOBOS data on charged particle multiplicities, obtained in Au+Au and d+Au collisions at RHIC. The general features of the Au+Au pseudorapidity distributions results will be discussed and compared to those of $\overline{p}p$ collisions. The total charged particle multiplicity, scaled by the number of participant pairs, is observed to be about 40% higher in Au+Au collisions than in $\overline{p}p$ and d+Au systems, but, surprisingly at the same level of e+e- collisions. Limiting fragmentation scaling is seen to be obeyed in Au+Au collisions. [ABSTRACT FROM AUTHOR]
ISSN:0217751X