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SUMMARY:Topological Portals to the Dark Sector - Nudžeim Selimović (INFN
 \, Padua)
DTSTART:20251121T160000Z
DTEND:20251121T170000Z
UID:TALK240577@talks.cam.ac.uk
CONTACT:Terry Generet
DESCRIPTION:I will present the construction and phenomenology of novel por
 tals between the Standard Model and dark sectors\, arising from topologica
 l operators in chiral perturbation theory. The first example is based on a
  mixed Wess–Zumino–Witten term that uniquely connects three QCD pions 
 to two dark pions\, leading to a consistent framework for light thermal in
 elastic dark matter with suppressed direct and indirect detection\, but di
 stinctive collider signatures. The second example is a minimal model in wh
 ich gauging the topological Skyrme current naturally links a QCD-like dark
  sector to the Standard Model\, allowing a semi-annihilation process that 
 sets the relic abundance. The purely p-wave nature of these interactions e
 nsures compatibility with existing constraints while offering discovery pr
 ospects at colliders and beam-dump experiments.
LOCATION:MR19 (Potter Room\, Pavilion B)\, CMS
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