Hadronic Structure – Reactions, Production and DecaysNo Access

THE ω → π⁺π⁻π⁰ PROCESS IN ³H AND ³He PHOTODISINTEGRATION

P. C. MAGALHÃES

Instituto de Física, Universidade de São Paulo, C. P. 66318, 05315-970, São Paulo, SP, Brazil

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D. R. BOITO

Instituto de Física, Universidade de São Paulo, C. P. 66318, 05315-970, São Paulo, SP, Brazil

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M. R. ROBILOTTA

Instituto de Física, Universidade de São Paulo, C. P. 66318, 05315-970, São Paulo, SP, Brazil

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G. R. S. ZARNAUSKAS

Instituto de Física, Universidade de São Paulo, C. P. 66318, 05315-970, São Paulo, SP, Brazil

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https://doi.org/10.1142/S0218301307008689Cited by:0 (Source: Crossref)

Abstract

We study the decay ω(782) → π⁺π⁻π⁰, which can contribute as an intermediate process to the photodisintegration of ³H and of ⁴He. In the calculation of this amplitude, performed by means of chiral effective Lagrangians, we study the role of the contact term and the ρ(770) resonance contributions. Dalitz plots are built with different values for the ρ mass and width. Our best result is obtained without the contact term.

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