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PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-6278
DTSTART:20210305T200000Z
DTEND:20210305T210000Z
DTSTAMP:20260415T003632Z
LAST-MODIFIED:20210304T015308Z
LOCATION:For zoom link\, sign up at: https://groups.google.com/a/g-gro
 ups.wisc.edu/d/forum/theoryseminars/join
SUMMARY:Long Range Interactions in Cosmology: Implications for Neutrin
 os\, Theory Seminar (High Energy/Cosmology)\, Jordi Salvadó\, Univers
 ity of Barcelona
DESCRIPTION:Cosmology is well suited to study the effects of long rang
 e interactions due to the large densities in the early Universe. In th
 is talk\, we will explore how the energy density and equation of state
  of a fermion system diverge from the commonly assumed ideal gas form 
 under the presence of scalar long range interactions with a range much
  smaller than cosmological scales. In this scenario\, “small”-scal
 e physics can impact our largest-scale observations. We will apply the
  formalism to self-interacting neutrinos\, performing an analysis to p
 resent and future cosmological data. The results will show that the cu
 rrent cosmological neutrino mass bound is fully avoided in the presenc
 e of a long range interaction\, opening the possibility for a laborato
 ry neutrino mass detection in the near future. We will also see an int
 eresting complementarity between neutrino laboratory experiments and t
 he future EUCLID survey.
URL:https://www.physics.wisc.edu/events/?id=6278
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