A Quark Model of Antilambda-Lambda Production in Pbar-P Interactions

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dc.creatorAlberg, M. A.
dc.creatorHenley, E. M.
dc.creatorWilets, L.
dc.creatorKunz, P. D.
dc.date1993-01-12
dc.date.accessioned2026-07-07T12:04:12Z
dc.date.available2026-07-07T12:04:12Z
dc.descriptionA quark model which includes both scalar and vector contributions to the reaction mechanism is used in a DWBA calculation of total and differential cross-sections, polarizations, and spin correlation coefficients for the reaction $\bar p p \rightarrow \bar ΛΛ$ at laboratory momenta from threshold to 1.92 GeV/c. The free parameters of the calculation include the scalar and vector strengths, a quark cluster size parameter, and six parameters in the unknown $\bar ΛΛ$ interaction. Excellent agreement with experiment is found for a constructive interference of scalar and vector terms, and for a $\bar ΛΛ$ potential which differs from that suggested by several authors on the basis of SU(3) arguments. The fit to the data is better than that obtained by other quark models, which use only scalar or vector annihilation terms. The agreement with experiment is as good as that found in meson-exchange models, which use more parameters than the present calculation.
dc.description19 pages of text and tables. 16 pages of figures. DOE/ER/40427-38-N92. Text and tables follow in TeX, figures may be obtained on request from authors
dc.identifierhttps://arxiv.org/abs/nucl-th/9301007
dc.identifierhttp://arxiv.org/abs/nucl-th/9301007
dc.identifierNucl.Phys.A560:365-388,1993
dc.identifierdoi:10.1016/0375-9474(93)90102-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/208052
dc.subjectNuclear Theory
dc.titleA Quark Model of Antilambda-Lambda Production in Pbar-P Interactions
dc.typetext

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