MinutePhysics
3429
4.95

How to Detect Antimatter Aliens - CP Violation & The Ozma Problem.

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

Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics
Link to Patreon Supporters: http://www.minutephysics.com/supporters/

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
https://www.seti.org/seti-institute/project/details/early-seti-project-ozma-arecibo-message

Sean Carroll on CP Symmetry (& why we shouldn’t trot out baryogenesis all the time)
https://www.preposterousuniverse.com/blog/2010/06/04/marketing-cp-violation/

Electroweak CP Violation on Scholarpedia
http://www.scholarpedia.org/article/CPviolationinelectroweakinteractions

The Wu Experiment
https://en.wikipedia.org/wiki/Wuexperiment

Martin Gardner, The New Ambidextrous Universe
https://books.google.com/books?id=kdLGa8cPPUC&lpg=PP1&pg=PR2#v=onepage&q&f=false

Lecture notes on CP Violation and the CKM Matrix, Cambridge (Mark Thomson)
https://www.hep.phy.cam.ac.uk/thomson/lectures/partIIIparticles/Handout122009.pdf

Homochirality
https://en.wikipedia.org/wiki/Homochirality

L-glucose (vs D-glucose)
https://en.wikipedia.org/wiki/L-Glucose

Radioactive Nucleus Decay
http://www.radioactivity.eu.com/site/pages/RadioactiveSeries.htm

CP Violation in Semi-Leptonic Decays (SEE PAGE 426 for reference to definition of MATTER)
https://www.hep.phy.cam.ac.uk/thomson/lectures/partIIIparticles/Handout122009.pdf

Kaon Decay Modes
http://pdg.lbl.gov/2012/listings/rpp2012-list-K-zero-L.pdf

Flipped bowling Jesus scene in Big Lebowski
https://www.youtube.com/watch?v=lWz8NGIisMo

Isotopes of Uranium
https://en.wikipedia.org/wiki/Isotopesofuranium

Beta Decay
https://en.wikipedia.org/wiki/Betadecay

The Wu Experiment
https://en.wikipedia.org/wiki/Wuexperiment

Kaons
https://en.wikipedia.org/wiki/Kaon

CP Violation in Symmetry Magazine
https://www.symmetrymagazine.org/article/charge-parity-violation

Physics Stack Exchange on CP Violation
https://physics.stackexchange.com/questions/160511/what-cp-violating-processes-do-we-know-of

MinutePhysics is on twitter - @minutephysics
And facebook - http://facebook.com/minutephysics
And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6

Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Created by Henry Reich

Смотреть новость на канале "MinutePhysics"

Hacking the Periodic Table

MinutePhysics

Do Photons Cast Shadows?

MinutePhysics

The Man Who Corrected Einstein

MinutePhysics

When It's OK to Violate Privacy

MinutePhysics

How The 2020 Census Will Protect Privacy

MinutePhysics

How to Build a Lava Moat (with xkcd)

MinutePhysics

Why Some Days Aren’t 24 Hours

MinutePhysics

Einstein's Biggest Blunder, Explained

MinutePhysics

The Portal Paradox

MinutePhysics

Our Ignorance About Gravity

MinutePhysics

Продолжая просматривать Новости технологий (UAZMI), вы подтверждаете, что ознакомились с Правилами пользования сайтом, и соглашаетесь на использование файлов cookie