dorsal/arxiv
View SchemaOn strangeness production in the reactions pp -> p Lambda^0 K^+ and pn -> n Lambda^0 K^+ near threshold
| Authors | A. N. Ivanov, Ya. A. Berdnikov, M. Faber, V. A. Ivanova, J. Marton, N. I. Troitskaya |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0509055 |
| URL | https://arxiv.org/abs/nucl-th/0509055 |
Abstract
The cross sections for the reactions pp -> p Lambda^0K^+ and pn -> n Lambda^0K^+ are calculated near threshold of the final states. The theoretical ratio of the cross sections R = sigma(pn -> n Lambda^0K^+)/ sigma(pp ->p\Lambda^0K^+) = 3 shows the enhancement of the pn interaction with respect to the pp interaction near threshold of the strangeness production N Lambda^0K^+. Such an enhancement is caused by the contribution of the np interaction in the isospin-singlet state, which is stronger than the $pn$ interaction in the isospin-triplet state. For the confirmation of this result we calculate the cross sections for the reactions pp -> pp pi^0, pi^0 p -> Lambda^0 K^+ and pi^-p -> Lambda^0 K^0 near threshold of the final states. The theoretical cross sections agree well with the experimental data.
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"abstract": "The cross sections for the reactions pp -\u003e p Lambda^0K^+ and pn\n -\u003e n Lambda^0K^+ are calculated near threshold of the final states. The\ntheoretical ratio of the cross sections R = sigma(pn -\u003e n Lambda^0K^+)/\nsigma(pp -\u003ep\\Lambda^0K^+) = 3 shows the enhancement of the pn interaction with\nrespect to the pp interaction near threshold of the strangeness production N\nLambda^0K^+. Such an enhancement is caused by the contribution of the np\ninteraction in the isospin-singlet state, which is stronger than the $pn$\ninteraction in the isospin-triplet state. For the confirmation of this result\nwe calculate the cross sections for the reactions pp -\u003e pp pi^0, pi^0 p -\u003e\nLambda^0 K^+ and pi^-p -\u003e Lambda^0 K^0 near threshold of the final states. The\ntheoretical cross sections agree well with the experimental data.",
"arxiv_id": "nucl-th/0509055",
"authors": [
"A. N. Ivanov",
"Ya. A. Berdnikov",
"M. Faber",
"V. A. Ivanova",
"J. Marton",
"N. I. Troitskaya"
],
"categories": [
"nucl-th",
"hep-ex",
"hep-ph",
"nucl-ex"
],
"title": "On strangeness production in the reactions pp -\u003e p Lambda^0 K^+ and pn -\u003e n Lambda^0 K^+ near threshold",
"url": "https://arxiv.org/abs/nucl-th/0509055"
},
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