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
1. Verfasser: Achasov, M N
Format: Artikel
Sprache:eng
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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.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.99.112004