Production of [phi] Mesons in Central Si + Au Collisions at 14.6 A·GeV/c

Production of [phi] Mesons in Central Si + Au Collisions at 14.6 A·GeV/c
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Total Pages: 4
Release: 1993
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The production of [phi] mesons from, central Si + Au collisions has been measured by E859 at the BNL-AGS by selecting events with identified KK− pairs. The values for the mass and width of the [phi] obtained from the invariant mass of the kaon pairs are consistent with those of the Particle Data Book. Preliminary results for the invariant 1/2[pi]m{sub T} d2n/dm{sub T}dy distribution and dN/dy are presented.

Production of [phi] Mesons in Central Si + Au Collisions at 14.6 A[center-dot]GeV/c

Production of [phi] Mesons in Central Si + Au Collisions at 14.6 A[center-dot]GeV/c
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Release: 2005
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The production of [phi] mesons from, central Si + Au collisions has been measured by E859 at the BNL-AGS by selecting events with identified K[sup +]K[sup [minus]] pairs. The values for the mass and width of the [phi] obtained from the invariant mass of the kaon pairs are consistent with those of the Particle Data Book. Preliminary results for the invariant 1/2[pi]m[sub T] d[sup 2]n/dm[sub T]dy distribution and dN/dy are presented.

Production of [phi] Mesons in Au-Au Collisions at the AGS.

Production of [phi] Mesons in Au-Au Collisions at the AGS.
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Total Pages: 6
Release: 1999
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The first measurements of [phi] meson production in Au-Au collisions at AGS energies are presented via the decay to K K−. A measurement of the centrality dependence of the yield shows an increase similar to that seen for the K− with a spectral shape consistent with a relativistic Breit-Wigner distribution within the statistical errors of the present data set. Future analysis using the full data set with 4 times the statistics will allow a more accurate determination of the yields, slopes and spectral shapes.

Production Of[phi] Meson in Au+Au Collisions at 11.7 A GeV/c

Production Of[phi] Meson in Au+Au Collisions at 11.7 A GeV/c
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Release: 2001
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First Measurement of[phi] meson production in Au+Au collisions has been conducted by E917 at BNL-AGS via selecting events with identified K[sup+]K[sup[minus]] pairs. Preliminary results on the invariant mass spectra of K[sup+]K[sup[minus]] pairs and the m[sub T] spectra are presented. Also, the inverse slope T, dN/dy, the ratio of[phi]/K[sup[minus]], ratio of[phi]/K[sup+]K[sup[minus]] and their centrality dependences are extracted in a rapidity range of y= 0.9-1.4. Indications on the possible mechanisms of[phi] production are discussed.