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Review of lattice results concerning low-energy particle physics

Review of lattice results concerning low-energy particle physics
Review of lattice results concerning low-energy particle physics
We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0), arising in the semileptonic K -> pi transition at zero momentum transfer, as well as the decay constant ratio fK/fpi 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)LxSU(2)R and SU(3)LxSU(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. The latter quantities are an addition compared to the previous review. For the heavy-quark sector, we provide results for mc and mb (also new compared to the previous review), 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. Finally, we review the status of lattice determinations of the strong coupling constant alpha_s.
1434-6044
Juttner, Andreas
a90ff7c5-ae8f-4c8e-9679-b5a95b2a6247
Flavour Lattice Averaging Group (FLAG)
Juttner, Andreas
a90ff7c5-ae8f-4c8e-9679-b5a95b2a6247

Juttner, Andreas , Flavour Lattice Averaging Group (FLAG) (2017) Review of lattice results concerning low-energy particle physics. The European Physical Journal C, 77. (doi:10.1140/epjc/s10052-016-4509-7).

Record type: Review

Abstract

We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0), arising in the semileptonic K -> pi transition at zero momentum transfer, as well as the decay constant ratio fK/fpi 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)LxSU(2)R and SU(3)LxSU(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. The latter quantities are an addition compared to the previous review. For the heavy-quark sector, we provide results for mc and mb (also new compared to the previous review), 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. Finally, we review the status of lattice determinations of the strong coupling constant alpha_s.

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Accepted/In Press date: 11 November 2016
e-pub ahead of print date: 17 February 2017
Organisations: Theory Group

Identifiers

Local EPrints ID: 410729
URI: https://eprints.soton.ac.uk/id/eprint/410729
ISSN: 1434-6044
PURE UUID: 5e67c263-7631-4826-aa3d-df7e0ca64b18

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Date deposited: 09 Jun 2017 09:31
Last modified: 13 Mar 2019 20:03

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Author: Andreas Juttner

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