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SUMMARY:IFIC Seminar: Constraints on fundamental constant variations from 
 atomic clocks
DTSTART;VALUE=DATE-TIME:20230620T100000Z
DTEND;VALUE=DATE-TIME:20230620T110000Z
DTSTAMP;VALUE=DATE-TIME:20260618T171458Z
UID:indico-event-7099@indico.ific.uv.es
DESCRIPTION:The fine-structure constant and other dimensionless fundamenta
 l constants can vary as a function of spacetime if an ultralight scalar f
 ield  couples to the standard model. Detecting such variations may be pos
 sible by  utilising the exceptional sensitivity of atomic clocks. Using d
 ata on strontium\,  ytterbium and caesium clock transitions collected by 
 the National  Physical Laboratory in the UK\, the fine-structure constant
  and electron-to-proton mass ratio variations have been measured over appr
 oximately two  weeks. Using these data\, the first model-independent cons
 traints on low-dimensional scalar-SM couplings have been placed. As specia
 l cases\, new  constraints are also extracted on models of ultralight sca
 lar and axion-like  dark matter.\n\nhttps://indico.ific.uv.es/event/7099/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/7099/
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