Classical behaviour of Q-balls in the Wick–Cutkosky model

In this paper, we continue discussing Q-balls in the Wick–Cutkosky model. Despite Q-balls in this model are composed of two scalar fields, they turn out to be very useful and illustrative for examining various important properties of Q-balls. In particular, in the present paper we study in detail (a...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2019-02, Vol.79 (2), p.1-12, Article 150
Main Authors: Panin, A. G., Smolyakov, M. N.
Format: Article
Language:English
Subjects:
Analysis
Astronomy
Astrophysics and Cosmology
Elementary Particles
Hadrons
Heavy Ions
Mathematical models
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Nuclear research
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
Stability analysis
String Theory
Technology
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Summary:In this paper, we continue discussing Q-balls in the Wick–Cutkosky model. Despite Q-balls in this model are composed of two scalar fields, they turn out to be very useful and illustrative for examining various important properties of Q-balls. In particular, in the present paper we study in detail (analytically and numerically) the problem of classical stability of Q-balls, including the nonlinear evolution of classically unstable Q-balls, as well as the behaviour of Q-balls in external fields in the non-relativistic limit.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-019-6638-2