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SUMMARY:HET Seminar: "Axion Kinetic Misalignment and Baryogenesis" Keisuke
  Harigaya (CERN)
DTSTART:20211018T140000
DTEND:20211018T150000
DTSTAMP:20260919T215530Z
UID:6a2f779e7bed8a62515553fb2b9f2d9ba360a6eae56545e4bedffb1b
CATEGORIES:Conferences - Seminars
DESCRIPTION:Keisuke Harigaya\n"Axion Kinetic Misalignment and Baryogenesis
 "\n\nWe will introduce new cosmological dynamics of the QCD axion\, where 
 the axion field rotates in field space. Axion dark matter may be produced 
 from the kinetic energy of the axion\, which we call the kinetic misalign
 ment mechanism. The required axion decay constant is much below the predic
 tion of the conventional evolutions. The angular momentum of the rotation 
 is transferred into baryon asymmetry through baryon number violating inte
 ractions. We discuss the electroweak sphaleron process\, Majorana neutrino
  mass\, and R-parity violation and predictions on the parameters of each t
 heory. In supersymmetric theories\, the rotation may dominate the energy d
 ensity of the universe. The resultant kination-dominated era modifies prim
 ordial gravitational wave spectra.
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727 https://epfl.zoom.u
 s/j/69882515383?pwd=cjY4V3BMSWFsNy92M2U0djZiVnlsdz09
STATUS:CONFIRMED
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