학술논문
Recent results from PHOBOS at RHIC
Document Type
article
Author
Back, B.B.; Baker, M.D.; Ballintijn, M.; Barton, D.S.; Becker, B.; Betts, R.R.; Bickley, A.A.; Bindel, R.; Budzanowski, A.; Busza, W.; Carroll, A.; Decowski, M.P.; García, E.; Gburek, T.; George, N.; Gulbrandsen, K.; Gushue, S.; Halliwell, C.; Hamblen, J.; Harrington, A.S.; Heintzelman, G.A.; Henderson, C.; Hofman, D.J.; Hollis, R.S.; Hoynski, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J.L.; Katzy, J.; Khan, N.; Kucewicz, W.; Kulinich, P.; Kuo, C.M.; Lee, J.W.; Lin, W.T.; Manly, S.; McLeod, D.; Mignerey, A.C.; Nouicer, R.; Olszewski, A.; Pak, R.; Park, I.C.; Pernegger, H.; Reed, C.; Remsberg, L.P.; Reuter, M.; Roland, C.; Roland, G.; Rosenberg, L.; Sagerer, J.; Sarin, P.; Sawicki, P.; Sedykh, I.; Skulski, W.; Smith, C.E.; Steinberg, P.; Stephans, G.S.F.; Sukhanov, A.; Tang, J.- L.; Tonjes, M.B.; Trzupek, A.; Vale, C.; Nieuwenhuizen, G.J.van; Verdier, R.; Veres, G.I.; Wolfs, F.L.H.; Wosiek, B.; Wozniak, K.; Wuosmaa, A.H.; Wysouch, B.; Zhang, J.
Source
Brazilian Journal of Physics. September 2004 34(3a)
Subject
Language
English
ISSN
0103-9733
Abstract
PHOBOS is one of the four heavy ion experiments currently running at the Relativistic Heavy Ion Collider (RHIC). In this paper we will present some of the current results from PHOBOS: the study of charged multiplicity distribution as function of pseudorapidity and centrality at or = 19.6, 130 and 200 GeV, a discussion of multiplicity scaling, and a measurement of transverse momentum spectra (pT) of charged hadrons produced in d+Au and Au+Au interactions at or = 200 GeV. The dependence of the Au+Au yields as function of centrality is found to be independent of pT. A strong suppression in the Au+Au hadron spectra relative to p at high pT is observed. The spectral shape for d+Au collisions is significantly different from the observations in Au+Au, the yield suppression is not observed in d+Au.