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001     437512
005     20250729150217.0
024 7 _ |a Fonseca:2019ypl
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024 7 _ |a inspire:1766039
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024 7 _ |a arXiv:1911.08472
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024 7 _ |a 10.1007/JHEP04(2020)010
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088 _ _ |a arXiv:1911.08472
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100 1 _ |a Fonseca de Sa, Nayara
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245 _ _ |a Axion fragmentation
260 _ _ |a [Trieste]
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336 7 _ |a ARTICLE
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336 7 _ |a Journal Article
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500 _ _ |a 29 pages and 17 figures in main text, 24 pages and 7 figures in appendices, v2: published version
520 _ _ |a We investigate the production of axion quanta during the early universe evolution of an axion-like field rolling down a wiggly potential. We compute the growth of quantum fluctuations and their back-reaction on the homogeneous zero-mode. We evaluate the transfer of kinetic energy from the zero mode to the quantum fluctuations and the conditions to decelerate the axion zero-mode as a function of the Hubble rate, the slope of the potential, the size of the barriers and the initial field velocity. We discuss how these effects impact the relaxion mechanism.
536 _ _ |a 611 - Fundamental Particles and Forces (POF3-611)
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536 _ _ |a DFG project 390833306 - EXC 2121: Quantum Universe (390833306)
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650 _ 7 |a fluctuation: quantum
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650 _ 7 |a axion: production
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650 _ 7 |a potential: slope
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650 _ 7 |a energy: kinetic
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650 _ 7 |a zero mode
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650 _ 7 |a Hubble constant
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650 _ 7 |a fragmentation
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650 _ 7 |a back reaction
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650 _ 7 |a axion-like particles
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693 _ _ |0 EXP:(DE-MLZ)NOSPEC-20140101
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700 1 _ |a Morgante, Enrico
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700 1 _ |a Sato, Ryosuke
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700 1 _ |a Servant, Géraldine
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773 _ _ |a 10.1007/JHEP04(2020)010
|g Vol. 2020, no. 4, p. 10
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|t Journal of high energy physics
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|y 2020
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787 0 _ |a Fonseca de Sa, Nayara et.al.
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|t Axion Fragmentation
856 4 _ |u https://bib-pubdb1.desy.de/record/437512/files/Fonseca2020_Article_AxionFragmentation.pdf
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