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Ubiquity of gauged <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Q</mml:mi></mml:math> -shells
Nontopological gauged soliton solutions called $Q$-balls arise in many scalar field theories that are invariant under a $U(1)$ gauge symmetry. The related, but qualitatively distinct, $Q$-shell solitons have only been shown to exist for special potentials. We investigate gauged solitons in a generic sixth-order polynomial potential (that contains the leading …