Published March 1993 | Version v1
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The breathing mode in extended Skyrme model

Description

An extended Skyrme model was studied which includes fourth and sixth-order terms. Some static properties were explored like the Δ-nucleon mass splitting and investigate the Skyrmion breathing mode in the framework of the linear response theory. It was found that the monopole response function has a pronounced peak located at ∼400 MeV, which was identified as the Roper resonance N(1440). The extended Skyrme model provides a more accurate description of baryon properties compared to the standard one. (author) 30 refs.; 3 figs.; 1 tab

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Additional details

Publishing Information

Imprint Pagination
15 p.
Report number
IPNO-TH--93-08

Optional Information

Notes
Submitted to Physical Review., D (Particles Fields) (US).