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arXiv · 1809.06123

Meson resonances in forward-angle $π^+π^-$ photoproduction

Ł. Bibrzycki·P. Bydžovský·R. Kamiński·A. P. Szczepaniak
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Abstract

Assuming that the $π^+π^-$ photoproduction at forward angles and high energies is dominated by one pion exchange we calculate the $π^+π^-$ mass distributions for low partial waves. Predictions of the model agree well Assuming that the $π^+π^-$ photoproduction at forward angles and high energies is dominated by one pion exchange we calculate the $π^+π^-$ mass distributions for low partial waves. Predictions of the model agree well with the experimental data which indicate that the $S$, $P$ and $D$ waves are dominated by the $f_0(980)$, $ρ(770)$ and $f_2(1270)$, resonances respectively.

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Ł. Bibrzycki, P. Bydžovský, R. Kamiński, A. P. Szczepaniak. 2019-01-19. Meson resonances in forward-angle $π^+π^-$ photoproduction. https://doi.org/10.1016/j.physletb.2018.12.045

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