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SUMMARY:Does the Universe distinguish between left and right? A tantalizin
 g hint of cosmological parity violation
DTSTART:20260423T131500Z
DTEND:20260423T141500Z
DTSTAMP:20260410T131700Z
UID:indico-event-9435@indico.fysik.su.se
DESCRIPTION:Speakers: Eiichiro Komatsu (Max Planck Institute for Astrophys
 ics)\n\nParity symmetry is violated in the weak interaction. Do the physic
 al laws behind unsolved cosmological problems\, such as dark matter and da
 rk energy\, also violate parity symmetry? The polarized light of the cosmi
 c microwave background is sensitive to new physics that violates parity sy
 mmetry. In this presentation\, we present a tantalizing hint of parity vio
 lation in the polarization data from two satellite missions: WMAP and Plan
 ck. This signal has also been observed in recent data from the Atacama Cos
 mology Telescope. Taken together\, these findings suggest a cosmological p
 arity violation with a statistical significance of 4 sigma. If this signal
  is confirmed in the future with higher statistical significance\, it woul
 d have profound implications for the elusive nature of dark matter and dar
 k energy.\nAbout the Speaker:\nProf. Komatsu is Director of the Department
  of Physical Cosmology at the Max Planck Institute for Astrophysics in Gar
 ching\, Germany\, since 2012. Earlier he was a professor in the Department
  of Astronomy and Director of Texas Cosmology Center at the University of 
 Texas at Austin. He obtained his PhD from Tohoku University\, Japan\, in 2
 001 followed by postdoctoral fellowship at Princeton University. He is a F
 ellow of American Physical Society. He has received many awards for his wo
 rk including Alfred P Sloan Fellow\, the Nishinomiya-Yukawa Memorial Prize
 \, the Gruber Cosmology Prize\, the Lancelot M Berkeley Prize of the Ameri
 can Astronomical Society\, the Chushiro Hayashi Prize of the Astronomical 
 Society of Japan\, the Breakthrough Prize in Fundamental Physics\, the Ino
 ue Prize for Science and the Nishina Memorial Prize. Prof. Komatsu uses th
 eoretical physics and observational data to study the origin\, evolution\,
  and constituents of our Universe. His scientific achievements include the
  most stringent test of the physics of the very early Universe known as 
 “cosmic inflation”\, innovative explorations of dark matter\, dark ene
 rgy and neutrinos in cosmology\, and astrophysics of galaxy clusters.\n\nh
 ttps://indico.fysik.su.se/event/9435/
URL:https://indico.fysik.su.se/event/9435/
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