SU(3) Symmetry Breaking Effects in $\gamma \gamma \to$ Two Mesons Processes

Benayoun, Maurice; Chernyak, V.L.

doi:10.1016/0550-3213(90)90143-2

SU(3) Symmetry Breaking Effects in $\gamma \gamma \to$ Two Mesons Processes

Jan, 1989

25 pages

Published in:

Nucl.Phys.B 329 (1990) 285-309

Published: 1990

DOI:

10.1016/0550-3213(90)90143-2

Report number:

LPC-89-01

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Abstract: (Elsevier)

The hard scattering processes γγ → PP, VV and PV (P and V denoting any member of respectively the pseudoscalar and vector nonets) are calculated in view of investigating in detail the consequences of SU(3) symmetry breaking effects. Our results greatly differ from those derived earlier. Comparison is done with the available experimental data on γγ → π + π − and γγ → K + K − cross sections. Some other predictions are also given.

photon photon: exclusive reaction
pseudoscalar meson: photoproduction
vector meson: photoproduction
meson: pair production
hard scattering
scattering amplitude
meson: wave function
channel cross section: energy dependence
symmetry breaking: SU(3)
pi: pair production

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