Production of $a_0$-mesons in pp and pn reactions

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dc.creatorBratkovskaya, E. L.
dc.creatorGrishina, V. Yu.
dc.creatorKondratyuk, L. A.
dc.creatorBuescher, M.
dc.creatorCassing, W.
dc.date2001-07-27
dc.date2002-07-12
dc.date.accessioned2026-07-07T10:54:41Z
dc.date.available2026-07-07T10:54:41Z
dc.descriptionWe investigate the cross section for the reaction $NN \to NNa_0$ near threshold and at medium energies. An effective Lagrangian approach with one-pion exchange is applied to analyze different contributions to the cross section for different isospin channels. The Reggeon exchange mechanism is also considered. The results are used to calculate the contribution of the $a_0$ meson to the cross sections and invariant $K \bar K$ mass distributions of the reactions $pp\to pn K^+\bar K^0$ and $pp\to pp K^+K^-$. It is found that the experimental observation of $a_0^+$ mesons in the reaction $pp\to pn K^+\bar K^0$ is much more promising than the observation of $a_0^0$ mesons in the reaction $pp\to pp K^+K^-$.
dc.description26 pages, including 11 eps figures, to be bublished in J. Phys. G
dc.identifierhttps://arxiv.org/abs/nucl-th/0107071
dc.identifierhttp://arxiv.org/abs/nucl-th/0107071
dc.identifierJ.Phys.G28:2423-2442,2002
dc.identifierdoi:10.1088/0954-3899/28/9/307
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185873
dc.subjectNuclear Theory
dc.titleProduction of $a_0$-mesons in pp and pn reactions
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