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About low-energy expansion of two-current amplitudes

О раэложении двух-токовых амплитуд при ниэких знергиях

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Il Nuovo Cimento A (1965-1970)

Summary

An alternative technique to deal with processes in which two isospin-carrying electromagnetic or weak currents appear is developed to predict the amplitude up to nontrivial structure terms by means of the divergence conditions. Applications are made to isovector Compton scattering and radiative muon capture by a free proton.

Riassunto

Si sviluppa una tecnica alternativa per trattare processi con due correnti deboli od elettromagnetiche, in modo da predire l’ampiezza fino a termini di struttura non banali, per mezzo delle condizioni di divergenza. Si considerano applicazioni alla diffuzione Compton isovettoriale e alla cattura μ radiativa da protone libero.

Реэюме

Раэвивается альтернативная техника для рассмотрения процессов, в которых появляются два иэоспина, несуших злектромагнитный или слабый токи, чтобы предскаэать амплитуду вплоть до нетривиальных структурных членов с помошью условий расходимости. Рассматриваются применения предложенной техники к иэовекторному комптоновскому рассеянию и радиационному эахвату мюона свободным протоном.

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Christillin, P., Servadio, S. About low-energy expansion of two-current amplitudes. Nuov Cim A 42, 165–188 (1977). https://doi.org/10.1007/BF02724581

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  • DOI: https://doi.org/10.1007/BF02724581

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