Nathan Isgur

TL;DR: The three quark system is studied in a relativized version of the quark potential model with chromodynamics and the spectrum of baryons is described with parameters consistent with those of an analogous study of meson spectroscopy.

TL;DR: In this paper, the authors exploit these static quark symmetries to derive model-independent normalizations of some weak hadronic matrix elements involving heavy quarks, as well as many relationships between such matrix elements.

TL;DR: In this paper, the authors present an extension of their earlier observations on symmetries in operation in the weak decays of heavy mesons containing a single heavy quark, which allow them to obtain absolutely normalized model-independent predictions in the heavy quarks limit of all of the form factors for the Q1 → Q2 induced weak pseudoscalar and pseudoscalar to vector transitions in terms of a single universal function ξ(t) with ξ (0) = 1.

TL;DR: In this article, the spectrum and mixing angles of negative-parity baryons in a quark-model framework inspired by quantum chromodynamics were discussed, and good agreement with experiment in the $S = 0$ and $S=\ensuremath{-}1$ sectors were obtained.

TL;DR: It is argued that in the high-energy electron end-point region in B decay the usual inclusive ("quark decay") calculations are unjustified and must be replaced by explicit sums over decays of the original meson into low-mass exclusive hadronic final states.