Constraints on Coupling Constants through Charged $Σ$ Photoproduction

Details Constraints on Coupling Constants through Charged $Σ$ Photoproduction Constraints on Coupling Constants through Charged $Σ$ Photoproduction

1995-02-06

arxiv.org/abs/nucl-th/9502016v1

Phys.Rev.C51:1074-1077,1995

Physics

Nuclear Physics

Nuclear Theory

12 pages RevTeX-file, 2 postscript figures available upon request, to appear in Phys. Rev. C, March 1995 (Rapid Comm.).

Scientific paper

10.1103/PhysRevC.51.R1074

The few available data for the reactions $\gamma p \rightarrow K^{0} \Sigma^{+}$ and $\gamma n \rightarrow K^{+} \Sigma^{-}$ are compared to models developed for the processes $\gamma p \rightarrow K^{+} \Sigma^{0}$ and $\gamma p \rightarrow K^{+} \Lambda$. It is found that some of these phenomenological models overpredict the measurements by up to a factor of 100. Fitting the data for all of these reactions leads to drastically reduced Born coupling constants.

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