Antimatter and other deep mysteries – Public lecture by Dr. Gerald Gabrielse

Our universe is made of matter. Yet the Big Bang produced essentially equal amounts of matter and antimatter according to our most fundamental understanding of the building blocks of nature. The inability of our fundamental theory to describe this basic feature of our universe is the great frustration of modern physics. In this one-hour lecture, held on Feb. 19, 2021, Dr. Gerald Gabrielse, Northwestern University, gives an introduction to antimatter and matter, explains the theoretical framework that explains particle interactions, and gives examples of attempts to solve the mystery of antimatter.

Dr. Gerald Gabrielse, a member of the National Academy of Science and the American Academy of the Arts and Sciences, is a Trustees Professor at Northwestern University. His vision, techniques and measurements started low-energy antiproton and antihydrogen research at the European laboratory CERN. He has made the most precise measurement of a property of an elementary particle, the electron’s magnet, to test the Standard Model’s most precise prediction. His test of whether the electron charge is spherical is one of the most sensitive tests for physics beyond the Standard Model.


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[fps]

Awesome. An opportunity to hear the wonders of physics from the people doing the work. Thanks for this Fermilab.

[Grandunifiedcelery]

*Congratulations on 500, 000 subscribers!*

[TheJdawg]

I'm only a college graduate but I watch this stuff because its free and i like it.

[ccuny]

This is brilliant. I am not well educated in either physics or maths (though I am trying...very trying) but this makes a lot of sense and it is explained in such a way that I really do think I have grasped the concept. I anyone reading comments takes pity on a weak soul like like me, please help me work out the units of of energy shown at 16:00. I get really confused with going from metres per second and kilograms to kilowatt--hours. Thank you.

[kagannasuhbeyoglu]

Great public lecture, very informative. Thanks a lot Fermilab👍

[anthemptedits]

What a great lecture, his passion really comes across and he did a fantastic job helping a layman like me understand the surface level of what was going on. Thank you so much to everyone involved

[onebylandtwoifbysearunifby]

"I Don't have Time to Discuss That"...
...everything i wanted to hear about.
You need 2 lecture versions:
1) People have never heard of...
2) People that want more clarity on...

[theultimatereductionist]

Does antimatter "travel backwards in time" (mathematically)?

[OldGamerNoob]

If the electron's magnetic moment were an actual current loop, I think the smallest it could be would be if all its charge were flowing through the loop at the speed of light.
I wonder if that size is smaller than that "largest electron size limit" threshold permitted by the limits of our current measurement capability...or if the accuracy of our measurements so far have already definitely disproven this possibility.

[timveseli]

This was great. Thank you for sharing.

[theultimatereductionist]

Do NOT bring up unnecessary garbage like entertainment (Star Trek).
Entertainers never do hard work like science research.
But HUGE praise to Dr Gabrielse at the end for emphasizing the fact of the BB and AGW.

[remoteviewer]

Space is not empty, hydrogen coherence backbones bind, resembling a vacuum but are the complete opposite.. induction is charge capacitance, cold contracts, heat expands, polar fields are based on cavitation, induction creates static polarization.

[NothingMaster]

This is at best a junior high school level lecture; probably suited for the layperson or the green science fiction crowds. Has Fermilab returned to the kindergarten in the pandemic days?

[donaldjacobson]

I went to Northwestern. Loved it. The winter of 1977 was dreadfully cold on the lake. One day it was -75 degrees. Brrr

[SalesforceUSA]

scientists are excited in proving themselves wrong - this should be an example to follow..

[jamesruscheinski]

How does propogation of electric field and magnetic field bring about light wave / photon particle?

[merlepatterson]

Are antimatter hydrogen atoms made from pre-existing normal matter quarks? Where do the "anti-quarks" come from if it is known that quarks cannot exist independently?

[tobuslieven]

11:46 Given it's so hard to distinguish antimatter, how do we know that relatively isolated parts of the universe aren't made of antimatter? For example isolated galaxies, or the diffuse matter in the gaps between the cosmic network.

[jamesruscheinski]

When the matter and anti-matter particle meet and destroy each other, are any particles released such as photons?

[michaelpudina]

Love this. You guys don't get enough praise.