Inclusive pion double charge exchange on O-16 above the delta resonance
A. P. Krutenkova, T. Watanabe, D. Abe, Y. Fujii, O. Hashimoto, V. V. Kulikov, T. Nagae, M. Nakamura, H. Noumi, H. Outa, P. K. Saha, T. Takahashi, H. Tamura
Abstract
The forward inclusive pion double charge exchange reaction, 16O(pi-,pi+)X, at T0 = 0.50 and 0.75 GeV has been studied in the kinematical region where an additional pion production is forbidden by energy-momentum conservation. The experiment was performed with the SKS spectrometer at KEK PS. The measured ratio of double charge exchange cross-section for these energies dsigma(0.50 GeV)/dOmega / dsigma(0.75 GeV)/dOmega = 1.7 +/- 0.2, disagrees with the value of 7.2 predicted within the conventional sequential single charge exchange mechanism. Possible reasons for the disagreement are discussed in connection with the Glauber inelastic rescatterings.
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