Measurement of the double-charge-exchange reactions pi- p ---> k+ sigma- and k- p ---> pi+ sigma -

Akerlof, C.W. ; Caldwell, P.K. ; Coffin, C.T. ; et al.
Phys.Rev.Lett. 27 (1971) 539-542, 1971.
Inspire Record 68930 DOI 10.17182/hepdata.21463

The forward cross sections for the reactions π−p→K+Σ− and K−p→π+Σ− have been determined for incident particle momenta in the range of 2.75 to 3.50 GeV/c, and an upper limit was established at 5.00 GeV/c. These measurements show that the double-charge-exchange process π−p→K+Σ− is suppressed by a factor of 1500 at 3 GeV/c relative to the single-exchange reaction π+p→K+Σ+.

2 data tables

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