Formation ofdelta(980) and $A_{2}$ (1320) in photon-photon collisions

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1 April 1986

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 33 (7) , 1847-1851
https://doi.org/10.1103/physrevd.33.1847

Abstract

The reaction γγ→

π^{0}

η has been investigated with the Crystal Ball detector at the DESY storage ring DORIS II. Formation of δ(980) and

A_{2}

(1320) has been observed with γγ partial widths

Γ_{γ γ}

(

A_{2}

)=1.14±0.20±0.2 6 keV and

Γ_{γ γ}

(δ)B(δ→πη)=0.19±0.07

{}_{- 0.07}^{+ 0.10}

keV.

Keywords

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