Inclusive pion double charge exchange on O-16 above the delta resonance

Details Inclusive pion double charge exchange on O-16 above the delta resonance Inclusive pion double charge exchange on O-16 above the delta resonance

2005-02-21

arxiv.org/abs/nucl-ex/0502017v2

Phys.Rev.C72:037602,2005

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 5 figures

Scientific paper

10.1103/PhysRevC.72.037602

The forward inclusive pion double charge exchange reaction, ^{16}O(pi^-,pi^+)X, at T_0 = 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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