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SUMMARY:Weakly interacting slim particles in astrophysics\, cosmology and 
 the laboratory - Redondo\, J (Max-Planck-Institut fr Physik\, Mnchen)
DTSTART:20120625T141000Z
DTEND:20120625T144500Z
UID:TALK38626@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Weakly interacting slim particles (WISPs) appear often in exte
 nsions of the standard model\, string theory in particular. This is the ca
 se of pseudo Nambu Goldstone Bosons\, stringy axions\, moduli\, hidden pho
 tons\, mini-charged particles and a long etc. The strongest bounds on thei
 r existence come frequently from cosmology and astrophysics but\, in parti
 cular cases\, laboratory experiments at the low energy\, high intensity fr
 ontier\, are more relevant. In this talk we review the most relevant astro
 /cosmo arguments and laboratory experiments used to constrain the existenc
 e of WISPs\, focusing on the most discussed cases of axion-like particles 
 (ALPs) and Hidden Photons. We will also pay attention to the recent anomal
 ies which could be pointing to the existence of WISPs: the anomalous cooli
 ng rate of white dwarfs and the transparency of the Universe to gamma-rays
 . Finally\, we will conclude discussing WISPs as testable cold dark matter
  candidates. \n\n
LOCATION:Seminar Room 1\, Newton Institute
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