Abstract
We study the annihilation of electroweak dumbbells and the dependence of their dynamics on initial dumbbell length and twist. Untwisted dumbbells decay rapidly while maximally twisted dumbbells collapse to form a compact sphaleron-like object, before decaying into radiation. The decay products of a dumbbell include electromagnetic magnetic fields with energy that is a few percent of the initial energy. The magnetic field from the decay of twisted dumbbells carries magnetic helicity with magnitude that depends on the twist, and handedness that depends on the decay pathway.
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Acknowledgments
This work was supported by the U.S. Department of Energy, Office of High Energy Physics, under Award No. DE-SC0019470. The authors acknowledge Research Computing at Arizona State University for providing access to high performance computing and storage resources on the Sol Supercomputer that have contributed to the research results reported within this paper.
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Patel, T., Vachaspati, T. Annihilation of electroweak dumbbells. J. High Energ. Phys. 2024, 164 (2024). https://doi.org/10.1007/JHEP02(2024)164
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DOI: https://doi.org/10.1007/JHEP02(2024)164