D meson semileptonic form factors in Nf = 3 QCD with Möbius domain-wall quarks

Takashi Kaneko; Brian Colquhoun; Hidenori Fukaya; Shoji Hashimoto

doi:10.1051/epjconf/201817513007

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 175, 13007 (2018)
https://doi.org/10.1051/epjconf/201817513007

D meson semileptonic form factors in N_f = 3 QCD with Möbius domain-wall quarks

Takashi Kaneko¹^,2^*, Brian Colquhoun¹, Hidenori Fukaya³ and Shoji Hashimoto¹^,2

¹ High Energy Accelerator Research Organization (KEK), Ibaraki 305-0801, Japan
² SOKENDAI (The Graduate University for Advanced Studies), Ibaraki 305-0801, Japan
³ Osaka University, Osaka 560-0043, Japan

^* Corresponding author: Speaker, e-mail: takashi.kaneko@kek.jp

Published online: 26 March 2018

Abstract

e present our calculation of D → π and D → K semileptonic form factors in N_f = 2 + 1 lattice QCD. We simulate three lattice cutoffs a^-1 ≃ 2.5, 3.6 and 4.5 GeV with pion masses as low as 230 MeV. The Möbius domain-wall action is employed for both light and charm quarks. We present our results for the vector and scalar form factors and discuss their dependence on the lattice spacing, light quark masses and momentum transfer.

© The Authors, published by EDP Sciences, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).