Measurement of the e+e−→π+π−π0η cross section below √s = 2 GeV
The process e+e−→π+π−π0η is studied in the center-of-mass energy region below 2 GeV with the SND detector at the VEPP-2000 e+e− collider. The following four intermediate states contribute to this process: ωη, ϕη, a0(980)ρ, and a structureless π+π−π0η state. We measure the total e+e−→π+π−π0η cross se...
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Veröffentlicht in: | Physical review. D 2019-06, Vol.99 (11), p.1 |
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Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | The process e+e−→π+π−π0η is studied in the center-of-mass energy region below 2 GeV with the SND detector at the VEPP-2000 e+e− collider. The following four intermediate states contribute to this process: ωη, ϕη, a0(980)ρ, and a structureless π+π−π0η state. We measure the total e+e−→π+π−π0η cross section and the cross sections for its components: ωη, ϕη, and a sum of a0(980)ρ and the structureless state. Our results are in agreement with previous measurements and have comparable or better accuracies. |
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ISSN: | 2470-0010 2470-0029 |
DOI: | 10.1103/PhysRevD.99.112004 |