Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-04-09
Nucl.Phys.A812:125-139,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 4 figures and 3 tables. Revised Introduction and Conclusions
Scientific paper
10.1016/j.nuclphysa.2008.08.011
We study the line shapes of radiative $\phi$-decays involving virtual
$f_{0}(980)$ and $a_{0}(980)$ mesons which decay, via derivative couplings, to
$\pi^{0}\pi^{0}$ and $\pi^{0}\eta$ respectively. After developing the formalism
for derivative interactions at one-loop level, we show that they can reproduce
the measured peaked line shapes of $\phi$-decays without including kaon loops.
Giacosa Francesco
Pagliara Giuseppe
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