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The reactions K−p → π∓Σ± at 4.2 GeV/c |
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| Authors: | G.G.G. Massaro S. Barlag A.J. de Groot J.C. Kluyver A.G. Tenner Ph. Gavillet J.B. Gay R.J. Hemingway S.O. Holmgren M.J. Losty F. Marzano E.W. Kittel R.T. Van de Walle H.G. Tiecke P.R. Lamb P. Grossmann J. Wells |
| Affiliation: | CERN, European Organization for Nuclear Research, Geneva, Switzerland;Nuclear Physics Laboratory, Oxford University, Oxford, England |
| Abstract: | We present differential cross sections and the Σ+ polarization for the reactions K?p → π?Σ± using data from a high statistics bubble chamber experiment at 4.2 GeV/c incident momentum. The statistical level allows a detailed analysis of these reactions over the whole t range. Several significant structures are observed. Comparisons are made with SU(3)-related reactions; for backward production of π?Σ+ such a comparison shows good evidence for Δ exchange. The exotic forward peak in K?p → π+Σ? is definitely confirmed. |
| Keywords: | Amsterdam-CERN-Nijmegen-Oxford Collaboration |
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