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X-ORIGINAL-URL:https://w3.lnf.infn.it
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TZID:Europe/Rome
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
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TZNAME:CEST
DTSTART:20170326T010000
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TZOFFSETFROM:+0200
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TZNAME:CET
DTSTART:20171029T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20170711T143000
DTEND;TZID=Europe/Rome:20170711T160000
DTSTAMP:20260508T162736
CREATED:20171026T122535Z
LAST-MODIFIED:20171026T122535Z
UID:6917-1499783400-1499788800@w3.lnf.infn.it
SUMMARY:Composite Accidental Axions
DESCRIPTION:One of the main problems of axion scenarios is to explain the origin of an almost exact Peccei-Quinn symmetry only broken by the QCD anomaly.\nIn this talk I will  present several models  where the QCD axion arises accidentally. This can be realised in confining gauge theories where the Peccei-Quinn symmetry can emerge accidentally if the representations are chiral. In some cases these models can be understood as the deconstruction of 5-dimensional gauge theories\nbut more general constructions are possible. Phenomenological features will be discussed.
URL:/event/composite-accidental-axions/
LOCATION:Aula A-1\, Via Enrico Fermi\, 40\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari teorici
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