New limits for the exotic exchange reaction π−p → K +Σ− at 5 and 8 GeV

Measurement of the exotic exchange reaction π −p → K + Σ − has been performed at 5 and 8 GeV, in the −0.015 to −0.13 and −0.009 to −0.15 (GeV/ c) 2 range of t repectively. We give the value near t = 0 of the differential cross section at 5 GeV, 21 −21 +76 nb/(GeV/ c) 2, and an upper limit (< 37 n...

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Bibliographic Details
Published in:Nuclear physics. B 1977-01, Vol.131 (1), p.72-79
Main Authors: Dekkers, D., Guillaud, J.P., Lepeltier, V., Minard, M.N., Pessard, H., Willitts, T.R., Yvert, M.
Format: Article
Language:English
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Summary:Measurement of the exotic exchange reaction π −p → K + Σ − has been performed at 5 and 8 GeV, in the −0.015 to −0.13 and −0.009 to −0.15 (GeV/ c) 2 range of t repectively. We give the value near t = 0 of the differential cross section at 5 GeV, 21 −21 +76 nb/(GeV/ c) 2, and an upper limit (< 37 nb/GeV/ c) 2) at 8 GeV. As a check the measured differential cross section is given at both energies for the reaction π +p → K + Σ + in the same range of t ★★ ★★ Results presented here were included in the thesis of Doctorat d′Etat by M.N. Minard, Orsay, France, 1976. .
ISSN:0550-3213
1873-1562
DOI:10.1016/0550-3213(77)90185-7