Axion

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Georg Raffelt, Max-Planck-Institut für Physik, München, Germany <strong>Axion</strong>s from Cosmic Strings PONT d‘Avignon, 21-25 April 2008, Avignon, France Strings form by Kibble mechanism after break-down of U PQ (1) Small loops form by self-intersection Paul Shellard
Georg Raffelt, Max-Planck-Institut für Physik, München, Germany <strong>Axion</strong> Mini Clusters PONT d‘Avignon, 21-25 April 2008, Avignon, France The inhomogeneities of the axion field are large, leading to bound objects, “axion mini clusters”. . [Hogan & Rees, PLB 205 (1988) 228.] Self-coupling of axion field crucial for dynamics. Typical mini cluster properties: Mass ~ 10 −12 M sun Radius ~ 10 10 cm Mass fraction up to several 10% Potentially detectable with gravitational femtolensing Distribution of axion energy density. 2-dim slice of comoving length 0.25 pc [Kolb & Tkachev, ApJ 460 (1996) L25]
Page 1 and 2: Georg G. Raffelt, Max-Planck Planck
Page 3 and 4: Georg Raffelt, Max-Planck-Institut
Page 5 and 6: Peccei-Quinn Mechanism Proposed in
Page 17 and 18: Supernova 1987A Energy-Loss Argumen
Page 19 and 20: Series of Papers on Axion Cosmology
Page 21 and 22: Series of Papers on Axion Cosmology
Page 23: Production of Cold Axion Population
Page 27 and 28: Axion Hot Dark Matter from Thermali
Page 29 and 30: Axion Hot Dark Matter Limits from P
Page 31 and 32: Experimental Tests of the Invisible
Page 43 and 44: Results and Plans of Tokyo Axion He
Page 45 and 46: LHC Magnet Mounted as a Telescope t
Page 53 and 54: Dimming of Supernovae without Cosmi
Page 59: Technological Applications of PVLAS

Axion

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