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Production of $\pi^0 \pi^0$ and $\pi^0 \eta$ in Photon - Photon Collisions

Edwards, C. ; Partridge, Richard ; Peck, C. ; et al.

Phys.Lett.B 110 (1982) 82-86, 1982.

Inspire Record 168793 DOI 10.17182/hepdata.30959

We investigate the four-photon final state produced in γγ colissions. In the π 0 π 0 channel we observe f(1270) production with predominantly helicity 2 and measure a partial width Γ γγ 2.9 +0.6 −0.4 ± keV (independent of assumptions on the helicity). We observe A 2 (1310) production in the π 0 η channel and find a partial width Γ γγ = 0.77 ± 0.18 ± 0.27 KeV (assuming helicity 2). We give an upper limit for f ≈ ηη .

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rivet Analysis
A Summary of Recent Experimental Results From Mark-$J$: High-energy $e^+ e^-$ Collisions at {PETRA}

The Mark-J collaboration Adeva, B. ; Barber, D.P. ; Becker, U. ; et al.

Phys.Rept. 109 (1984) 131, 1984.

Inspire Record 196567 DOI 10.17182/hepdata.30997

None

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Comparison of Meson Jet Behavior in $\pi^- p$ Collisions at 40-{GeV}/$c$ With the Data on $e^+ e^-$ Annihilation

Grishin, V.G. ; Didenko, L.A. ; Kanarek, T. ; et al.

Sov.J.Nucl.Phys. 38 (1983) 581, 1983.

Inspire Record 183320 DOI 10.17182/hepdata.39047

None

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Production of $\pi^0 \pi^0$ and $\pi^0 \eta$ in Photon - Photon Collisions

rivet Analysis
A Summary of Recent Experimental Results From Mark-$J$: High-energy $e^+ e^-$ Collisions at {PETRA}

Comparison of Meson Jet Behavior in $\pi^- p$ Collisions at 40-{GeV}/$c$ With the Data on $e^+ e^-$ Annihilation

Date

Collaboration

Subject_areas

Phrases Reset

Reactions

Observables Reset

CM Energies (GeV)

Authors

Production of $\pi^0 \pi^0$ and $\pi^0 \eta$ in Photon - Photon Collisions

rivet Analysis A Summary of Recent Experimental Results From Mark-$J$: High-energy $e^+ e^-$ Collisions at {PETRA}

Comparison of Meson Jet Behavior in $\pi^- p$ Collisions at 40-{GeV}/$c$ With the Data on $e^+ e^-$ Annihilation

rivet Analysis
A Summary of Recent Experimental Results From Mark-$J$: High-energy $e^+ e^-$ Collisions at {PETRA}