We present the status of our project to calculate D → πℓν, D → Kℓν and Ds → Kℓν semileptonic form factors using domain wall fermions for both heavy and light quarks. Our computations are performed using RBC/UKQCD's set of 2+1 flavour domain wall fermion and Iwasaki gauge field ensembles. We plan to calculate three-point functions covering the full, physically allowed kinematic range. Given that the signal decays faster than the noise, unambiguously and reliably extracting the ground state is critical for success. We include an analysis of operator diagonalisation within several possible 2 × 2 operator bases and find an admixture of gauged fixed wall and Z (2) wall sources to be acceptable at both zero and non-zero momentum. Initial results for semileptonic form factors are presented for first ensembles.
|Journal||P o S - Proceedings of Science|
|Number of pages||11|
|Publication status||Published - 8. Jul 2022|
|Event||38th International Symposium on Lattice Field Theory, LATTICE 2021 - Virtual, Online, United States|
Duration: 26. Jul 2021 → 30. Jul 2021
|Conference||38th International Symposium on Lattice Field Theory, LATTICE 2021|
|Period||26/07/2021 → 30/07/2021|