T
Thomas DeGrand
Researcher at University of Colorado Boulder
Publications - 284
Citations - 40163
Thomas DeGrand is an academic researcher from University of Colorado Boulder. The author has contributed to research in topics: Quantum chromodynamics & Quark. The author has an hindex of 42, co-authored 281 publications receiving 35263 citations. Previous affiliations of Thomas DeGrand include University of Helsinki.
Papers
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Journal ArticleDOI
Semileptonic Decays of Heavy Mesons with the Fat Clover Action
Claude Bernard,Thomas DeGrand,Carleton DeTar,Steven Gottlieb,Urs M. Heller,James Edward Hetrick,Craig McNeile,Kostas Orginos,Robert L. Sugar,Doug Toussaint +9 more
TL;DR: In this paper, a variety of semileptonic decays of heavy-light mesons were studied in an effort to improve the determination of the heavy-quark Standard-Model CKM matrix elements.
Journal ArticleDOI
Studying the role of the 't Hooft interaction in QCD, by means of lattice simulations
Pietro Faccioli,Thomas DeGrand +1 more
TL;DR: In this article, a recent investigation on the dynamics of light quarks, at intermediate and low energy, is presented, where it is possible to probe the Dirac and flavor structure of the nonperturbative quark-quark interaction and look directly for signatures of the t Hooft Lagrangian.
Proceedings ArticleDOI
Dynamical overlap fermions: simulation and physics results
Stefan Schaefer,Thomas DeGrand +1 more
TL;DR: In this paper, the double-lock member (42a) is in an incompletely inserted state, and the contacting part projects from the plug housing (20) to the cap housing (30).
Journal ArticleDOI
The role of heavy fermions
Anna Hasenfratz,Thomas DeGrand +1 more
TL;DR: In this paper, the authors studied how light the heavy fermions have to be to cause more than a trivial renormalization of the gauge coupling and showed that heavy dynamical Fermions with masses around the cut-off do not change the low energy physics apart from a finite renormalisation.
Journal ArticleDOI
Mass dependence of finite size effects on the hadron spectrum
Claude Bernard,Thomas DeGrand,Carleton DeTar,Steven Gottlieb,Leo Kärkkäinen,Robert L. Sugar,Doug Toussaint +6 more
TL;DR: In this paper, a new quark mass over a wider range of lattice volumes than previously studied was introduced, which allowed the authors to study how the finite volume effects change as the quarkmass is decreased and to compare with weaker coupling results.