Discovery of a new type of particle beam instability

Published on: December 4, 2019
Recent measurements at the Fermilab Booster accelerator confirmed existence of a certain kind of particle beam instability. More measurements are planned for the near future to examine new methods proposed to mitigate it.

Accelerated, charged particle beams do what light does for microscopes: illuminate matter. The more intense the beams, the more easily scientists can examine the object they are looking at. But intensity comes with a cost: the more intense the beams, the more they become prone to instabilities.

By Alexey Burov . You can read the entire article at the Fermilab News web site.

Theorists discover the “Rosetta Stone” for neutrino physics

Categories: Intensity Frontier
Published on: October 9, 2019
From left: Xining Zhang of the University of Chicago, Peter Denton of Brookhaven National Laboratory and Stephen Parke of Fermilab have discovered a new mathematical identity that had eluded mathematicians for centuries. Photo: Reidar Hahn

The physics usage case of this result stems from our investigations of neutrino oscillation probabilities in matter, which involve finding eigenvectors and eigenvalues, both of which are rather complicated expressions. While the eigenvalues are somewhat unavoidably tricky, this new result shows that the eigenvectors can be written down in a simple, compact, and easy-to-remember form, once the eigenvalues are calculated. For this reason, we called the eigenvalues “the Rosetta Stone” for neutrino oscillations in our original publication — once you have them, you know everything you want to know.

By Stephen Parke. You can read this article at the Fermilab web site.

Neutrino mixing and masses

Categories: Intensity Frontier
Published on: October 13, 2015

A brief accounting of what we know about Neutrino Mixing and their masses.

http://www.fnal.gov/pub/today/archive/archive_2015/today15-10-02.html, by Stephen Parke.

Higgs boson a la carte?

Published on: March 25, 2015

SuperNova-graphic

The theory folks report that discovering additional Higgs bosons may be our next window to a new world.
http://www.fnal.gov/pub/today/archive/archive_2015/today15-03-06.html, by Marcela Carena

Lattice QCD at the frontiers

Published on: September 26, 2013

An update on the impact of the activities of the Fermilab Theory Group for the various topics for the Frontiers of Physics.

http://www.fnal.gov/pub/today/archive/archive_2013/today13-09-13.html, by Ruth Van de Water

Theoretical predictions at LHC

Categories: Energy Frontier
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Published on: April 5, 2013

The NLO simulation, MCFM, that theorists at Fermilab created for the Tevatron and the LHC.

http://www.fnal.gov/pub/today/archive/archive_2013/today13-04-04.html, by John Campbell.

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