Abstract
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.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 416 |
| Tidsskrift | P o S - Proceedings of Science |
| Vol/bind | 396 |
| Antal sider | 11 |
| ISSN | 1824-8039 |
| DOI | |
| Status | Udgivet - 8. jul. 2022 |
| Begivenhed | 38th International Symposium on Lattice Field Theory, LATTICE 2021 - Virtual, Online, USA Varighed: 26. jul. 2021 → 30. jul. 2021 |
Konference
| Konference | 38th International Symposium on Lattice Field Theory, LATTICE 2021 |
|---|---|
| Land/Område | USA |
| By | Virtual, Online |
| Periode | 26/07/2021 → 30/07/2021 |
Bibliografisk note
Funding Information:Kind thanks to the RBC/UKQCD collaboration for many invaluable discussions and helpful suggestions. Results presented here were produced using Grid [23] and Hadrons [24]. This work used the DiRAC Extreme Scaling service at the University of Edinburgh, operated by the Edinburgh Parallel Computing Centre on behalf of the STFC DiRAC HPC Facility (https://www.dirac.ac.uk). This equipment was funded by BEIS capital funding via STFC capital grant ST/R00238X/1 and STFC DiRAC Operations grant ST/R001006/1. DiRAC is part of the National e-Infrastructure. P.B. has been supported in part by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under the Contract No. DE-SC-0012704 (BNL). P.B. has also received support from the Royal Society Wolfson Research Merit award WM/60035. L.D.D. is supported by the U.K. Science and Technology Facility Council (STFC) grant ST/P000630/1. F.E. and A.P. are supported in part by UK STFC grant ST/P000630/1. F.E. and A.P. also received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme under grant agreement No 757646 and A.P. additionally under grant agreement No 813942. A.J. and J.F. acknowledge funding from STFC consolidated grant ST/P000711/1 and A.J. from ST/T000775/1. M.M. gratefully acknowledges support from the STFC in the form of a fully funded PhD studentship. J.T.T.: the project leading to this application has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 894103.
Funding Information:
P.B. has been supported in part by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under the Contract No. DE-SC-0012704 (BNL). P.B. has also received support from the Royal Society Wolfson Research Merit award WM/60035. L.D.D. is supported by the U.K. Science and Technology Facility Council (STFC) grant ST/P000630/1. F.E. and A.P. are supported in part by UK STFC grant ST/P000630/1. F.E. and A.P. also received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No 757646 and A.P. additionally under grant agreement No 813942. A.J. and J.F. acknowledge funding from STFC consolidated grant ST/P000711/1 and A.J. from ST/T000775/1. M.M. gratefully acknowledges support from the STFC in the form of a fully funded PhD studentship. J.T.T.: the project leading to this application has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 894103.
Funding Information:
This work used the DiRAC Extreme Scaling service at the University of Edinburgh, operated by the Edinburgh Parallel Computing Centre on behalf of the STFC DiRAC HPC Facility (https://www.dirac. ac.uk). This equipment was funded by BEIS capital funding via STFC capital grant ST/R00238X/1 and STFC DiRAC Operations grant ST/R001006/1. DiRAC is part of the National e-Infrastructure.
Publisher Copyright:
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