The Breathing Mode in Extended Skyrme Model
Abstract
We study an extended Skyrme model which includes fourth and sixth-order terms. We explore some static properties like the -nucleon mass splitting and investigate the Skyrmion breathing mode in the framework of the linear response theory. We find that the monopole response function has a pronounced peak located at 400 MeV, which we identify to the Roper resonance N(1440). As compared to the standard one, the extended Skyrme model provides a more accurate description of baryon properties.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.