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000478849 005__ 20230510114024.0
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000478849 0247_ $$2arXiv$$aarXiv:2206.01129
000478849 0247_ $$2datacite_doi$$a10.3204/PUBDB-2022-02799
000478849 037__ $$aPUBDB-2022-02799
000478849 041__ $$aEnglish
000478849 088__ $$2DESY$$aDESY-22-094
000478849 088__ $$2arXiv$$aarXiv:2206.01129
000478849 088__ $$2Other$$aCTPU-PTC-22-11
000478849 088__ $$2Other$$aMS-TP-22-17
000478849 088__ $$2CERN$$aCERN-TH-2022-091
000478849 1001_ $$aPapageorgiou, A.$$b0
000478849 245__ $$aAxion dark matter from frictional misalignment
000478849 260__ $$c2022
000478849 3367_ $$0PUB:(DE-HGF)25$$2PUB:(DE-HGF)$$aPreprint$$bpreprint$$mpreprint$$s1678800801_12312
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000478849 500__ $$a17 pages, 6 figures and 2 tables
000478849 520__ $$aWe study the impact of sphaleron-induced thermal friction on the axion dark-matter abundance due to the interaction of an axion-like particle (ALP) with a dark non-Abelian gauge sector in a secluded thermal bath. Thermal friction can either enhance the axion relic density by delaying the onset of oscillations or suppress it by damping them. We derive an analytical formula for the $frictional$ $adiabatic$ $invariant$, which remains constant along the axion evolution and which allows us to compute the axion relic density in a general set-up. Even in the most minimal scenario, in which a single gauge group is responsible for both the generation of the ALP mass and the friction force, we find that the resulting dark-matter abundance from the misalignment mechanism deviates from the standard scenario for axion masses  $m_a\gtrsim 100 \; {\rm eV}$. We also generalize our analysis to the case where the gauge field that induces friction and the gauge sector responsible for the ALP mass are distinct and their couplings to the axion have a large hierarchy as can be justified by means of alignment or clockwork scenarios. We find that it is easy to open up the ALP parameter space where the resulting axion abundance matches the observed dark-matter relic density both in the traditionally over- and underabundant regimes. This conclusion also holds for the QCD axion.
000478849 536__ $$0G:(DE-HGF)POF4-611$$a611 - Fundamental Particles and Forces (POF4-611)$$cPOF4-611$$fPOF IV$$x0
000478849 588__ $$aDataset connected to INSPIRE
000478849 650_7 $$2INSPIRE$$aaxion, dark matter
000478849 650_7 $$2INSPIRE$$aaxion, relic density
000478849 650_7 $$2INSPIRE$$adark matter, relic density
000478849 650_7 $$2INSPIRE$$aquantum chromodynamics, axion
000478849 650_7 $$2INSPIRE$$agauge, nonabelian
000478849 650_7 $$2INSPIRE$$aaxion, mass
000478849 650_7 $$2INSPIRE$$ainvariance, adiabatic
000478849 650_7 $$2INSPIRE$$athermal
000478849 650_7 $$2INSPIRE$$aalignment
000478849 650_7 $$2INSPIRE$$aoscillation
000478849 650_7 $$2INSPIRE$$ahierarchy
000478849 650_7 $$2INSPIRE$$agauge field theory
000478849 650_7 $$2INSPIRE$$aaxion-like particles
000478849 693__ $$0EXP:(DE-MLZ)NOSPEC-20140101$$5EXP:(DE-MLZ)NOSPEC-20140101$$eNo specific instrument$$x0
000478849 7001_ $$0P:(DE-H253)PIP1091190$$aQuilez Lasanta, Pablo$$b1$$eCorresponding author
000478849 7001_ $$aSchmitz, K.$$b2
000478849 8564_ $$uhttps://bib-pubdb1.desy.de/record/478849/files/HTML-Approval_of_scientific_publication.html
000478849 8564_ $$uhttps://bib-pubdb1.desy.de/record/478849/files/PDF-Approval_of_scientific_publication.pdf
000478849 8564_ $$uhttps://bib-pubdb1.desy.de/record/478849/files/2206.01129v1.pdf$$yOpenAccess
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000478849 9101_ $$0I:(DE-588b)2008985-5$$6P:(DE-H253)PIP1091190$$aDeutsches Elektronen-Synchrotron$$b1$$kDESY
000478849 9131_ $$0G:(DE-HGF)POF4-611$$1G:(DE-HGF)POF4-610$$2G:(DE-HGF)POF4-600$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lMatter and the Universe$$vFundamental Particles and Forces$$x0
000478849 9141_ $$y2022
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