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High Energy Physics - Phenomenology

arXiv:hep-ph/0510078 (hep-ph)
[Submitted on 6 Oct 2005 (v1), last revised 4 Jul 2006 (this version, v6)]

Title:Particle production from Q-balls

Authors:Stephen Clark (ITP/LPPC)
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Abstract: Non topological solitons, Q-balls can arise in many particle theories with U(1) global symmetries. As was shown by Cohen et al. \cite{Qballscohen}, if the corresponding scalar field couples to massless fermions, large Q-balls are unstable and evaporate, producing a fermion flux proportional to the Q-ball's surface. In this paper we analyse Q-ball instabilities as a function of Q-ball size ans fermion mass. In particular, we construct an exact quantum-mechanical description of the evaporating Q-ball. This new construction provides an alternative method to compute Q-Ball's evaporation rates. We shall also find the new expression for the upper bound on evaporation as a function of the produced fermion mass and study the effects of Q ball's size on particle production.
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:hep-ph/0510078
  (or arXiv:hep-ph/0510078v6 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0510078
Journal reference: Nucl.Phys. B756 (2006) 38-70
Related DOI: https://doi.org/10.1016/j.nuclphysb.2006.08.019

Submission history

From: Stephen Clark [view email] [via CCSD proxy]
[v1] Thu, 6 Oct 2005 15:43:01 UTC (227 KB)
[v2] Sun, 20 Nov 2005 19:42:01 UTC (228 KB)
[v3] Thu, 12 Jan 2006 17:31:47 UTC (381 KB)
[v4] Tue, 24 Jan 2006 10:57:51 UTC (382 KB)
[v5] Mon, 27 Mar 2006 08:59:04 UTC (381 KB)
[v6] Tue, 4 Jul 2006 11:30:13 UTC (381 KB)
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