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Title: | Direct calculation of the K-matrix for pion electro-production in the delta channel | Authors: | Alberto, P. Amoreira, L. Fiolhais, M. Golli, B. Širca, S. |
Issue Date: | 2005 | Citation: | The European Physical Journal A - Hadrons and Nuclei. 26:1 (2005) 99-106 | Abstract: | We present a method to calculate directly the K-matrix for the pion electro-production processes in the framework of chiral quark models which allows for a clean separation of the resonant amplitudes from the background. The method is applied to the calculation of the multipole amplitudes M1+, E1+, and S1+ in the ? channel within the Cloudy Bag Model. A good overall description is found in a broad energy range. | URI: | https://hdl.handle.net/10316/7704 | DOI: | 10.1140/epja/i2005-10160-9 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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