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dc.contributorVirginia Tech
dc.contributor.authorDavoudiasl, H.
dc.contributor.authorHuber, P.
dc.date.accessioned2013-12-18T19:46:39Z
dc.date.available2013-12-18T19:46:39Z
dc.date.issued2009-05
dc.identifier.citationDavoudiasl, Hooman ; Huber, Patrick, MAY 2009. “Thermal production of axions in the Earth,” PHYSICAL REVIEW D 79(9): 095024. DOI: 10.1103/PhysRevD.79.095024en_US
dc.identifier.issn1550-7998
dc.identifier.urihttp://hdl.handle.net/10919/24742
dc.description.abstractWe estimate the production rate of axion-type particles in the core of the Earth, at a temperature T approximate to 5000 K. We constrain thermal geo-axion emission by demanding a core-cooling rate less than O(100) K/Gyr, as suggested by geophysics. This yields a "nonstellar" (unaffected by extreme stellar temperatures or densities) bound on the axion-electron (ae) fine structure constant, alpha(ae)less than or similar to 10(-18), stronger than the existing accelerator (vacuum) bound by 4 orders of magnitude. We consider the prospects for measuring the geo-axion flux through conversion into photons in a geoscope; such measurements can further constrain alpha(ae).en_US
dc.description.sponsorshipU. S. Department of Energy DE-AC02-98CH10886
dc.language.isoen_US
dc.publisherAmerican Physical Society
dc.subjectinvisible axion
dc.subjectcp conservation
dc.subjectconstraints
dc.subjectmantle
dc.subjectcore
dc.subjectAstronomy & Astrophysics
dc.subjectPhysics
dc.titleThermal production of axions in the Earth
dc.typeArticle - Refereed
dc.identifier.urlhttp://link.aps.org/doi/10.1103/PhysRevD.79.095024
dc.date.accessed2013-12-16
dc.title.serialPhysical Review D
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.79.095024


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