Production of φ Mesons in Central S28i + A196u Collisions at 14.6A GeV/c

Phys. Rev. Lett. 76, 2021 – Published 18 March 1996
Y. Akiba et al. (E-802 Collaboration)


Production of the φ meson in central Si+Au collisions has been measured by E859 at the Brookhaven Alternating Gradient Synchrotron by selecting events with identified K+K- pairs. The mass and width of the φ, obtained from the invariant mass distribution of kaon pairs, are consistent with those of free φ mesons. The transverse mass and rapidity distributions are presented. The inverse slope parameter for an exponential fit to the invariant transverse mass distribution is 179±10±17 MeV.


  • Received 13 October 1995
  • Published in the issue dated 18 March 1996

© 1996 The American Physical Society

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