1. FLAG Review 2019
- Author
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Aoki, S., Aoki, Y., Bečirević, D., Blum, T., Colangelo, G., Collins, S., Della Morte, M., Dimopoulos, P., Dürr, S., Fukaya, H., Golterman, M., Gottlieb, Steven, Gupta, R., Hashimoto, S., Heller, U. M., Herdoiza, G., Horsley, R., Jüttner, A., Kaneko, T., Lin, C.-J. D., Lunghi, E., Mawhinney, R., Nicholson, A., Onogi, T., Pena, C., Portelli, A., Ramos, A., Sharpe, S. R., Simone, J. N., Simula, S., Sommer, R., Van de Water, R., Vladikas, A., Wenger, U., Wittig, H., and Flavour Lattice Averaging Group (FLAG)
- Subjects
High Energy Physics::Lattice ,Nuclear Theory ,High Energy Physics::Phenomenology ,High Energy Physics::Experiment - Abstract
We review lattice results related to pion, kaon, D-meson, B-meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communities. More specifically, we report on the determination of the light-quark masses, the form factor f+(0) arising in the semileptonic K→π transition at zero momentum transfer, as well as the decay constant ratio fK/fπ and its consequences for the CKM matrix elements Vus and Vud. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of SU(2)L×SU(2)R and SU(3)L×SU(3)R Chiral Perturbation Theory. We review the determination of the BK parameter of neutral kaon mixing as well as the additional four B parameters that arise in theories of physics beyond the Standard Model. For the heavy-quark sector, we provide results for mc and mb as well as those for D- and B-meson decay constants, form factors, and mixing parameters. These are the heavy-quark quantities most relevant for the determination of CKM matrix elements and the global CKM unitarity-triangle fit. We review the status of lattice determinations of the strong coupling constant αs. Finally, in this review we have added a new section reviewing results for nucleon matrix elements of the axial, scalar and tensor bilinears, both isovector and flavor diagonal.
- Published
- 2020