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SUMMARY:Flavour from the Axion: Predictive DFSZ Textures and Their Phenome
 nology
DTSTART:20260803T020000Z
DTEND:20260803T033000Z
DTSTAMP:20260804T000500Z
UID:indico-event-428@indico.kias.re.kr
DESCRIPTION:Speakers: Maaz Hayat (University of Melbourne)\n\nTitle: Flavo
 ur from the Axion: Predictive DFSZ Textures and Their Phenomenology\nSpeak
 er: Maaz Hayat\nAbstract:\nThe Peccei–Quinn symmetry that solves the str
 ong CP problem need not be flavour-blind. If it acts horizontally on the S
 tandard Model quarks\, a single anomalous $U(1)_{PQ}$  can simultaneously
  address the strong CP problem\, supply a QCD axion dark matter candidate\
 , and shape the fermion mass matrices. I will present the Minimal F-DFSZ f
 ramework: a class of flavoured DFSZ models in which the PQ symmetry is ful
 ly horizontal and the domain wall number is unity\, allowing for a cosmolo
 gically viable post-inflationary axion. The horizontal charges enforce pre
 dictive texture-zero Yukawa matrices\, so that the axion- and Higgs-mediat
 ed flavour-changing couplings are fixed in terms of Standard Model observa
 bles. I will discuss the phenomenology that follows — spanning axion\, H
 iggs\, and precision-flavour observables — and show how the predictivity
  of the framework translates into concrete constraints on the scale of new
  physics.\n\n\nhttps://indico.kias.re.kr/event/428/
LOCATION:Room 1423 (KIAS)
URL:https://indico.kias.re.kr/event/428/
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