B_s → Kℓν form factors from lattice QCD with domain-wall heavy quarks

2024/01/03 by Protick Mohanta, T. Kaneko, Mohanta, Protick +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2401.01570

openalex publication_date 2024/01/03 · openalex created_date 2024/01/05 · openalex updated_date 2026/07/28

Abstract

We report on our on-going study of the B_s → Kℓν decay in N_f=2+1 lattice QCD. We employ fully relativistic setup in which the Möbius domain-wall action is used for all quark flavors. The lattice cutoff is a^-1 ∼ 2.5 GeV, where we take bottom quark masses up to m_Q < 0.7a^-1 in order to control discretization errors. We present preliminary results for the relevant form factors extracted from correlator ratios by inspecting their ground state saturation.

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