[Triumf-seminars] TRIUMF Journal Club Seminar today at 12:00
postmaster@admin.triumf.ca
postmaster@admin.triumf.ca
Mon, 5 Jun 2006 05:00:05 -0700
---------------------- multipart/mixed attachment
Date/Time: Mon 2006-06-05 at 12:00
Location: MOB Boardroom
Speaker: John Behr (TRIUMF)
Title: Relic keV Sterile Neutrinos and Reionization
Abstract: P.L. Beirmann and A. Kusenko,
Phys. Rev. Lett. 96 (2006) 091301 (March 10),
"Relic keV Sterile Neutrinos and Reionization"
"A sterile neutrino with a mass of several keV can account for
cosmological dark matter, as well as explain the observed velocities
of pulsars. We show that x rays produced by the decays of these relic
sterile neutrinos can boost the production of molecular hydrogen, which
can speed up the cooling of gas and the early star formation, which can,
in turn, lead to a reionization of the Universe at a high enough redshift
to be consistent with the Wilkinson Microwave Anisotropy Probe results."
See Also:
www.cerncourier.com/main/article/46/4/5
"Sterile neutrinos unravel astrophysics"
A possible proposal for direct detection via electron capture will be discussed afterwards,
cheerfully violating ground rules :)
Please bring your own lunch.
______________________________
Subscription information available at http://admin.triumf.ca/netdata/seminars/list
---------------------- multipart/mixed attachment--