212 citations · 851 across the 30 of their papers we have counts for
4 papers · 1 filter
On the Feynman-Hellmann Theorem in Quantum Field Theory and the Calculation of Matrix Elements
Chris Bouchard, Chia Cheng Chang, Thorsten Kurth +2
The Feynman-Hellmann theorem can be derived from the long Euclidean-time limit of correlation functions determined with functional derivatives of the partition function. Using this…
Matrix elements from moments of correlation functions
Chris Bouchard, Chia Cheng Chang, Kostas Orginos +1
Momentum-space derivatives of matrix elements can be related to their coordinate-space moments through the Fourier transform. We derive these expressions as a function of momentum…
Neutrinoless double beta decay from lattice QCD
Amy Nicholson, Evan Berkowitz, Chia Cheng Chang +7
While the discovery of non-zero neutrino masses is one of the most important accomplishments by physicists in the past century, it is still unknown how and in what form these masse…
-mixing matrix elements from lattice QCD for the Standard Model and beyond
A. Bazavov, C. Bernard, C. M. Bouchard +17
We calculate---for the first time in three-flavor lattice QCD---the hadronic matrix elements of all five local operators that contribute to neutral - and -meson mixing in…