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SUMMARY:IFIC Seminar: Explaining the electroweak scale hierarchy with conf
 ormal and custodial symmetry
DTSTART;VALUE=DATE-TIME:20250506T100000Z
DTEND;VALUE=DATE-TIME:20250506T110000Z
DTSTAMP;VALUE=DATE-TIME:20260312T234443Z
UID:indico-event-8004@indico.ific.uv.es
DESCRIPTION:I will introduce the idea of "Custodial Naturalness" to explai
 n the origin of the electroweak scale hierarchy. Custodial Naturalness is 
 based on classical scale invariance as well as an extension of the Standar
 d Model (SM) scalar sector custodial symmetry to SO(6). This requires a si
 ngle new complex scalar field charged under a new U(1) gauge symmetry whic
 h partially overlaps with B-L. Classical scale invariance and the high-sca
 le scalar sector custodial symmetry are radiatively broken by quantum effe
 cts that generate a new intermediate scale by dimensional transmutation. T
 he little hierarchy problem is solved because the Higgs boson arises as ps
 eudo-Nambu-Goldstone boson of the spontaneously broken SO(6) custodial sym
 metry. The minimal realization of Custodial Naturalness has the same numbe
 r of parameters as the SM and predicts testable new physics in the form of
  a heavy Z' as well as a light but close-to invisible dilaton. Simple exte
 nsions furthermore allow to explain neutrino masses and Dark Matter - in a
  region of parameter space that can be completely excluded by future colli
 ders.\n\n \n\n"This IFIC Seminar has received funding/support from the Co
 nselleria de Educación\, Cultura\, Universidades y Empleo Research Projec
 t CIESGT2024/7”\n\n\n\nhttps://indico.ific.uv.es/event/8004/
LOCATION:IFIC Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/8004/
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