433 citations · 3.3k across the 72 of their papers we have counts for
4 papers · 2 filters
Emerging understanding of the ΔI = 1/2 Rule from Lattice QCD
P. A. Boyle, N. H. Christ, N. Garron +8
There has been much speculation as to the origin of the ΔI = 1/2 rule (Re A_0/Re A_2 \simeq 22.5). We find that the two dominant contributions to the ΔI=3/2, K \to ππ correlation f…
Automated lattice perturbation theory and relativistic heavy quarks in the Columbia formulation
Christoph Lehner
We introduce a new computer algebra system optimized for use in lattice perturbation theory as well as continuum perturbation theory and a new framework to perform automated pertur…
Lattice determination of the Decay Amplitude
T. Blum, P. A. Boyle, N. H. Christ +13
We describe the computation of the amplitude A_2 for a kaon to decay into two pions with isospin I=2. The results presented in the letter Phys.Rev.Lett. 108 (2012) 141601 from an a…
Nonperturbative tuning of an improved relativistic heavy-quark action with application to bottom spectroscopy
Yasumichi Aoki, Norman H. Christ, Jonathan M. Flynn +7
We calculate the masses of bottom mesons using an improved relativistic action for the b-quarks and the RBC/UKQCD Iwasaki gauge configurations with 2+1 flavors of dynamical domain-…