187 citations · 1.4k across the 60 of their papers we have counts for
6 papers · 1 filter
Nucleon axial and pseudoscalar form factors from lattice QCD at the physical point
C. Alexandrou, S. Bacchio, M. Constantinou +8
We compute the nucleon axial and induced pseudoscalar form factors using three ensembles of gauge configurations, generated with dynamical light quarks with mass tuned to approxima…
Scattering of two and three physical pions at maximal isospin from lattice QCD
Matthias Fischer, Bartosz Kostrzewa, Liuming Liu +3
We present the first direct lattice QCD computation of two- and three- scattering quantities that includes an ensemble at the physical point. We study the quark mass d…
The -resonance with physical pion mass from lattice QCD
Matthias Fischer, Bartosz Kostrzewa, Maxim Mai +5
We present the first-ever lattice computation of pi pi-scattering in the I=1 channel with Nf=2 dynamical quark flavours obtained including an ensemble with physical value of the pi…
On the generalised eigenvalue method and its relation to Prony and generalised pencil of function methods
Matthias Fischer, Bartosz Kostrzewa, Johann Ostmeyer +3
We discuss the relation of three methods to determine energy levels in lattice QCD simulations: the generalised eigenvalue, the Prony and the generalised pencil of function methods…
Quark masses and decay constants in isoQCD with Wilson clover twisted mass fermions
Extended Twisted Mass Collaboration, Georg Bergner, Petros Dimopoulos +8
We present a preliminary study of the pion, kaon and D-meson masses and decay constants in isosymmetric QCD, as well as a preliminary result for the light-quark renormalized mass.…
Ruling Out the Massless Up-Quark Solution to the Strong CP Problem by Computing the Topological Mass Contribution with Lattice QCD
Constantia Alexandrou, Jacob Finkenrath, Lena Funcke +4
The infamous strong CP problem in particle physics can in principle be solved by a massless up quark. In particular, it was hypothesized that topological effects could substantiall…