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in subjects: "Breit-Wigner Formula"

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Extension of the Application of the generalized pole representation to the treatment of resonance cross sections.

One reliable and convenient way of processing the cross sections in the resolved energy region is by use of the generalized pole representation, whereby the Doppler-broadening calculation can be carried out rigorously using the analytical approach. So far, its applications have been limited to cases with resonance parameters specified by the Reich-Moore formalism. Although such an approach, in principle, can be extended to all three remaining representations of resolved resonance parameters spe… more

Date: March 12, 1999

Creator: Hwang, R. N. & Jammes, C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Production of {phi} mesons in Au-Au collisions at the AGS.

The first measurements of {phi} meson production in Au-Au collisions at AGS energies are presented via the decay to K{sup +} K{sup {minus}}. A measurement of the centrality dependence of the yield shows an increase similar to that seen for the K{sup {minus}} 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 determinati… more

Date: August 10, 1999

Creator: Back, B. B.; Betts, R. R.; Chang, J.; Collaboration, E917; Gillitzer, A.; Henning, W. F. et al.