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SUMMARY:Evolving Dark Energy DESIderata
DTSTART:20260909T120000Z
DTEND:20260909T140000Z
DTSTAMP:20260903T114500Z
UID:indico-event-1673419@indico.cern.ch
DESCRIPTION:Speakers: George Efstathiou (University of Cambridge)\n\nThe L
 ambda Cold Dark Matter model has emerged as the standard model of Cosmolo
 gy. It provides an extremely accurate description of the temperature\, pol
 arization and lensing fluctuations in the cosmic microwave background rad
 iation and also of  a wide range of early and late time obervables. In th
 is model\, dark energy is described by a cosmological constant. However\, 
 recent observation with the Dark Energy Spectrosopic Instrument (DESI) hav
 e been interpreted as evidence for evolving dark energy. As a result  hu
 ndreds of papers have been written  exploring extensions to the Lambda CD
 M cosmology. I will deconstruct the arguments of the DESI collaboration an
 d show that the evidence for evolving dark energy is extraordinarily weak.
  Dark energy desiderata do not yet break the Lambda CDM model.\n\nhttps:/
 /indico.cern.ch/event/1673419/\n\nZoom: https://cern.zoom.us/j/67346292748
 ?pwd=ZnRkQWh0ZXVFQTc5K256QW5NcEcrdz09
LOCATION:503/1-001 - Council Chamber (CERN)
URL:https://indico.cern.ch/event/1673419/
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