Measurement of the g p -> K^0 Sigma^+ reaction with the Crystal Ball/TAPS detectors at the Mainz Microtron
2013
The g p -> K^0
Sigma^+ reaction has been measured from threshold to Eg=1.45 GeV (W_cm=1.9 GeV) using the
Crystal Balland TAPS multiphoton spectrometers together with the photon tagging facility at the Mainz
MicrotronMAMI. In the present experiment, this reaction was searched for in the 3pi^0 p final state, by assuming K^0_S -> pi^0 pi^0 and
Sigma^+ -> pi^0 p. The experimental results include total and differential cross sections as well as the polarization of the recoil
hyperon. The new data significantly improve empirical knowledge about the g p -> K^0
Sigma^+ reaction in the measured energy range. The results are compared to previous measurements and model predictions. It is demonstrated that adding the present g p -> K^0
Sigma^+ results to existing data allowed a better description of this reaction with various models.
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