How to Tell Matter From Antimatter | CP Violation & The Ozma Problem

Опубликовано 26 февраля 2020, 13:55

This video was made with the support of the Heising Simons Foundation.

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This video is about the Ozma problem of distinguishing the chirality (ie left-handedness or right-handedness) of matter using weak interaction processes like beta decay (for example in uranium), or neutral kaon/k-meson decay. This is wrapped up in the phenomenon of CP violation, by which charge and parity are both violated by certain weak interaction processes - this enables antimatter to be unambiguously distinguished from matter, and left handed chirality from right handed.

REFERENCES

The Ozma Search for Extraterrestrial Intelligence (SETI) Project
seti.org/seti-institute/projec...

Sean Carroll on CP Symmetry (& why we shouldn’t trot out baryogenesis all the time)
preposterousuniverse.com/blog/...

Electroweak CP Violation on Scholarpedia
scholarpedia.org/article/CPvio...

The Wu Experiment
en.wikipedia.org/wiki/Wuexperi...

Martin Gardner, The New Ambidextrous Universe
books.google.com/books?id=kdLG...

Lecture notes on CP Violation and the CKM Matrix, Cambridge (Mark Thomson)
hep.phy.cam.ac.uk/thomson/lect...

Homochirality
en.wikipedia.org/wiki/Homochir...

L-glucose (vs D-glucose)
en.wikipedia.org/wiki/L-Glucos...

Radioactive Nucleus Decay
radioactivity.eu.com/site/page...

CP Violation in Semi-Leptonic Decays (SEE PAGE 426 for reference to definition of MATTER)
hep.phy.cam.ac.uk/thomson/lect...

Kaon Decay Modes
pdg.lbl.gov/2012/listings/rpp2...

Flipped bowling Jesus scene in Big Lebowski
youtube.com/watch?v=lWz8NGIisM...

Isotopes of Uranium
en.wikipedia.org/wiki/Isotopes...

Beta Decay
en.wikipedia.org/wiki/Betadeca...

The Wu Experiment
en.wikipedia.org/wiki/Wuexperi...

Kaons
en.wikipedia.org/wiki/Kaon

CP Violation in Symmetry Magazine
symmetrymagazine.org/article/c...

Physics Stack Exchange on CP Violation
physics.stackexchange.com/ques...

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