Audio / Video

The Origin of Mass of the Visible Universe

  • 01:01:08


More than 99% of the mass of the visible universe is made up of protons and neutrons. Both particles are much heavier than their quark and gluon constituents. The existence and stability of atoms rely on the fact that the mass difference between the neutron and the proton is about 0.14%. A slightly smaller or larger value would have led to a dramatically different universe. I show how theoretical breakthroughs and high-performance computing resources have transitioned to a point where these masses, their differences and similar physics observables can be calculated accurately on space-time lattices directly from Quantum Chromodynamics, the strongly interacting theory of quarks and gluons.



The Origin of Mass of the Visible Universe


University of California, Berkeley. Dept. of Physics


Berkeley, CA, University of California, Berkeley, Dept. of Physics, October 26, 2015

Full Collection Name

Physics Colloquia






1 streaming video file

Other Physical Details

digital, sd., col.


Physics Library


Recorded at a colloquium held on October 26, 2015, sponsored by the Dept. of Physics, University of California, Berkeley.

originally produced as an .mts file in 2016

Speakers: Fodor, Zoltan.

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Physics Colloquia


colloquia/10-26-15Fodor.mp4 01:01:08

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