K- meson production in the proton proton reaction at 3.67-GeV/c
- Balestra, F.
- Bedfer, Y.
- Bertini, R.
- Bland, L.C.
- Brenschede, A.
- Brochard, F.
- Bussa, M.P.
- Chalyshev, V.
- Choi, Seonho
- Debowski, M.
- Dzemidzic, M.
- Faivre, J.C.
- Falomkin, I.V.
- Fava, L.
- Ferrero, L.
- Foryciarz, J.
- Frohlich, I.
- Frolov, V.
- Garfagnini, R.
- Gill, D.
- Grasso, A.
- Grosse, E.
- Heinz, S.
- Ivanov, V.V.
- Jacobs, W.W.
- Kuhn, W.
- Maggiora, A.
- Maggiora, M.
- Manara, A.
- Panzieri, D.
- Pfaff, H.W.
- Piragino, G.
- Pontecorvo, G.B.
- Popov, A.
- Ritman, J.
- Salabura, P.
- Tosello, F.
- Vigdor, S.E.
- Zosi, G.
DOIAbstract
The total cross section of the reaction $pp\to ppK^+K^-$ has been determined for proton--proton reactions with $p_{beam}=3.67 GeV/c$. This represents the first cross section measurement of the $pp \to ppK^-K^+$ channel near threshold, and is equivalent to the inclusive $pp\to ppK^-X$ cross section at this beam momentum. The cross section determined at this beam momentum is about a factor 20 lower than that for inclusive $pp\to ppK^+X$ meson production at the same CM energy above the corresponding threshold. This large difference in the $K^+$ and $K^-$ meson inclusive production cross sections in proton-proton reactions is in strong contrast to cross sections measured in sub-threshold heavy ion collisions, which are similar in magnitude at t...
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