6 Citations
Nucleon isovector charges and twist-2 matrix elements with Nf=2+1 dynamical Wilson quarks
- PhysicsPhysical Review D
- 2019
We present results from a lattice QCD study of nucleon matrix elements at vanishing momentum transfer for local and twist-2 isovector operator insertions. Computations are performed on gauge…
Rho resonance, timelike pion form factor, and implications for lattice studies of the hadronic vacuum polarization
- PhysicsPhysical Review D
- 2020
We study isospin-1 P-wave $\pi\pi$ scattering in lattice QCD with two flavours of O($a$) improved Wilson fermions. For pion masses ranging from $m_\pi=265$ MeV to $m_\pi=437$ MeV, we determine the…
Isovector axial form factor of the nucleon from lattice QCD
- PhysicsPhysical Review D
- 2022
The isovector axial form factor of the nucleon plays a key role in interpreting data from long-baseline neutrino oscillation experiments. We perform a lattice-QCD based calculation of this form…
The pion-nucleon sigma term with $N_f=2+1$ $\mathcal{O}(a)$-improved Wilson fermions
- Physics
- 2022
We present an analysis of the pion-nucleon sigma term on the CLS ensembles with 𝑁 𝑓 = 2 + 1 flavors of O( 𝑎 ) -improved Wilson fermions. We perform a chiral interpolation based on ensembles with…
Investigating $\mathbf{N \to N\pi}$ axial matrix elements
- Physics
- 2021
Excited state contamination is one of the most challenging sources of systematics to tackle in the determination of nucleon matrix elements and form factors. The signal-to-noise problem prevents one…
Isovector electromagnetic form factors of the nucleon from lattice QCD and the proton radius puzzle
- PhysicsPhysical Review D
- 2021
We present results for the isovector electromagnetic form factors of the nucleon computed on the coordinated lattice simulations ensembles with N f ¼ 2 þ 1 flavors of O ð a Þ -improved Wilson…
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