Journal
PHYSICAL REVIEW D
Volume 101, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.101.055003
Keywords
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Funding
- U.K. Science and Technology Facilities Council studentship
- U.K. Science and Technology Facilities Council [ST/P000762/1]
- Institute for Particle Physics Phenomenology Associateship
- STFC [ST/P000762/1] Funding Source: UKRI
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We show that in the SU(2) Georgi-Glashow model, 't Hooft-Polyakov monopoles are produced by a classical instability in magnetic fields above the Ambjorn- Olesen critical field, which coincides approximately with the field at which Schwinger pair production becomes unsuppressed. Below it, monopoles can be produced thermally, and we show that the rate is higher than for pointlike monopoles by calculating the sphaleron energy as a function of the magnetic field. The results can be applied to production of monopoles in heavy-ion collisions or in the early Universe.
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