Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-03-10
Eur.Phys.J.C69,103-118,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages, 12 Figures, 4 Tables; LaTeX svjour style; update to the version accepted for publication in the European Physical Jo
Scientific paper
10.1140/epjc/s10052-010-1394-3
We present a general framework for the model-independent decomposition of the fully differential cross section of the reactions e+e- -> gamma* -> (pi0 pi0 gamma) and e+e- -> gamma* -> (pi0 eta gamma), which can provide important information on the properties of scalar mesons: f0(600), f0(980) and a0(980). For the model-dependent ingredients in the differential cross section, an approach is developed, which relies on Resonance Chiral Theory with vector and scalar mesons. Numerical results are compared to data. The framework is convenient for development of a Monte Carlo generator and can also be applied to the reaction e+e- -> gamma* -> (pi+ pi- gamma).
Eidelman Shmuel
Ivashyn Sergiy
Korchin Alexandr
Pancheri Giulia
Shekhovtsova Olga
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