APS » PROLA » Phys. Rev. Lett. » Volume 78 » Issue 11

Phys. Rev. Lett. 78, 2080 - 2083 (1997)

Collective Expansion in High Energy Heavy Ion Collisions
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I. G. Bearden et al. (The NA44 Collaboration)
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Received 4 November 1996

Transverse mass spectra of pions, kaons, and protons from the symmetric heavy-ion collisions 200 A GeV S+S and 158 A GeV Pb+Pb, measured in the NA44 focusing spectrometer at CERN, are presented. The mass dependence of the slope parameters provides evidence of collective transverse flow from expansion of the system in heavy-ion induced central collisions.


©1997 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v78/p2080
DOI: 10.1103/PhysRevLett.78.2080
PACS: 25.75.Ld

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