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SUMMARY:“Quirks Live in Cool Universes"
DTSTART:20260330T140000
DTSTAMP:20260527T061553Z
UID:7941c4a196697aa26d57fd1b6924bdabb2b274e29532e433af294e92
CATEGORIES:Conferences - Seminars
DESCRIPTION:Graham Kribs (CERN and Oregon U)\n“Quirks” arise when a ne
 w dark sector contains matter that transforms under both the SM and a new 
 non-Abelian confining force. When the confinement scale is much smaller th
 an the mass of the matter\, quirks exhibit exotic macroscopic behavior tha
 t is completely unlike other new physics signals. The lightest state of th
 e theory is a glueball\, which can be exceptionally long-lived.  If the l
 ong-lived glueballs are produced in the early Universe\, they can dramatic
 ally alter cosmology.  I'll discuss the abundance of dark glue and dark g
 lueballs\, how they decay\, and the (dangerous) astrophysical signals that
  they produce.  The result will be that if quirks were observed at the LH
 C\, avoiding the glueball constraints requires the reheat temperature of t
 he universe to be highly constrained\, less than 100 GeV\, and in some reg
 ions of parameter space\, less than 100 MeV. \n 
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727
STATUS:CONFIRMED
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