Angular asymmetries in the reactions and and a0-f0 mixing View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2003-10

AUTHORS

A. E. Kudryavtsev, V. E. Tarasov, J. Haidenbauer, C. Hanhart, J. Speth

ABSTRACT

The reactions pp → dπ+η and pn → dπ0η are of special interest for investigating the a0(980) (JP=0+) resonance in the process NN → da0 → dπη. We study some aspects of those reactions within a general formalism and also in a concrete phenomenological model. In particular, it is shown that the presence of nonresonant (i.e., without excitation of the a0 resonance) contributions to these reactions yields nonvanishing values for specific polarization observables, i.e., to effects like those generated by a00-f0 mixing. An experimental determination of these observables for the reaction would provide concrete information on the magnitude of those nonresonant contributions to πη production. We also discuss the possibility of extracting information about a00-f0 mixing from the reaction with a polarized proton beam. More... »

PAGES

1946-1952

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/1.1619506

DOI

http://dx.doi.org/10.1134/1.1619506

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1014778831


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