Experimental study of the inclusive η-spectrum from proton-antiproton annihilations at rest in liquid hydrogen
1989 (English)In: Zeitschrift für Physik C Particles and Fields, ISSN 0170-9739, Vol. 42, 49-58 p.Article in journal (Refereed) Published
The inclusive Î·-momentum spectrum from Mathematical expression annihilations at rest in liquid hydrogen was measured at LEAR. Branching ratios were obtained for Mathematical expression, and Î·Î·(8.1Â±3.1)Ã10-5. An upper limit for Mathematical expression of 1.8Ã10-4 at 95% CL was found. The ratio of the branching ratios is BR(Î·Ïvariant)/BR(Î·Ï)=0.51-0.06+0.20. For the ratio of branching ratios into two pseudoscalar mesons, we have BR(Î·Ï0)/BR(Ï0Ï0)=0.65Â±0.14, BR(Î·Î·)/BR(Ï0Ï0), BR(Î·Î·â²)/BR(Ï0Ï0) at 95% CL, and BR(Î·Î·)/BR(Î·Ï0). Â© 1989 Springer-Verlag.
Place, publisher, year, edition, pages
1989. Vol. 42, 49-58 p.
IdentifiersURN: urn:nbn:se:su:diva-46060DOI: 10.1007/BF01565127OAI: oai:DiVA.org:su-46060DiVA: diva2:371451
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