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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-1288
DTSTART:20081030T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260423T010346Z
LAST-MODIFIED:20081029T143032Z
LOCATION:4274 Chamberlin
SUMMARY:Thermal inflation\, gravitational waves\, baryogenesis and dar
 k matter\, NPAC (Nuclear/Particle/Astro/Cosmo) Forum\, Wan-Il Park\, K
 AIST
DESCRIPTION:We propose a simple extension of the Minimal Supersymmetri
 c Standard Model which<br>
\ngives rise to thermal inflation\, baryoge
 nesis and dark matter in a natural and<br>
\nremarkably consistent way
 .<br>
\nWe consider the $lambda_phi = 0$ special case of our previous 
 model\, which is the<br>
\nminimal way to incorporate a Peccei-Quinn s
 ymmetry.<br>
\nThe axino becomes the lightest supersymmetric particle 
 with $m_{	ilde{a}} sim 1<br>
\n	extrm{ to } 10 GeV$ and is typically o
 ver-produced during the flaton decay.<br>
\nInterestingly though\, the
  dark matter abundance is minimized for $m_{	ilde{a}} sim<br>
\n1 GeV$
 \,  $f_a sim 10^{11} 	extrm{ to } 10^{12} GeV$ and $|mu| sim 400 GeV<b
 r>
\n	extrm{ to } 1 TeV$ at an abundance coincident with the observed 
 abundance and<br>
\nwith significant amounts of both axions and axinos
 .<br>
\nFuthermore\, for these values the baryon abundance naturally m
 atches the observed<br>
\nabundance.<br>
\nAs an observable\, thermal 
 inflation which is the key idea of the model produces a<br>
\nbackgrou
 nd of gravitational waves.<br>
\nIt is likely to be detected at BBO an
 d DECIGO style direct detection experiments.<br>
\n
URL:https://www.physics.wisc.edu/events/?id=1288
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