Journal
PHYSICAL REVIEW D
Volume 90, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.90.085002
Keywords
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Funding
- Fondecyt [1120352, 11121651, 1140155]
- Conicyt [79112034]
- Chilean Government through the Centers of Excellence Base Financing Program of Conicyt
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Exact analytic solutions of the Skyrme model defined on a spherically symmetric R-(1,R-1) x S-2 geometry, chosen to mimic finite volume effects, are presented. The static and spherically symmetric configurations have nontrivial winding number and finite soliton mass. These configurations possess an extra topological charge, allowing for a novel BPS bound which can be saturated, unlike what happens in the standard case. Such solutions include exact multi-Skyrmions of arbitrary winding number, composed by interacting elementary Skyrmions. The values of the coupling constants and the compression modulus are found in good agreement with experiments by fitting the masses M-N and M-Delta.
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