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A Search for Neutral Baryon Resonances Below Pion Threshold

X. Jiang·R. Gilman·R. Ransome·P. Markowitz·T. -H. Chang·C. -C. Chang·G. A. Peterson·D. W. Higinbotham·M. K. Jones·N. Liyanage·J. Mitchell·B. Wojtsekhowski
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Abstract

The reaction p(e,e^{prime}pi^+)X^0 was studied with two high resolution magnetic spectrometers to search for narrow baryon resonances. A missing mass resolution of 2.0 MeV was achieved. A search for structures in the mass region of 0.97 < M_{X^0} < 1.06 GeV yielded no significant signal. The yield ratio of p(e,e^{prime}pi^+)X^0/p(e,e^{prime}pi^+)n was determined to be (-0.35 +/- 0.35) times 10^{-3} at 1.004 GeV and (0.34 +/- 0.42) times 10^{-3} at 1.044 GeV.

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X. Jiang, R. Gilman, R. Ransome, P. Markowitz, T. -H. Chang, C. -C. Chang, G. A. Peterson, D. W. Higinbotham, M. K. Jones, N. Liyanage, J. Mitchell, B. Wojtsekhowski. 2002-08-12. A Search for Neutral Baryon Resonances Below Pion Threshold. https://doi.org/10.1103/physrevc.67.028201

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