Luchang Jin

activity

20232026

most cited

K_{L} \to μ^{+} μ^{-}

from lattice QCD

1 citations · 1 across the 7 of their papers we have counts for

collaborators

7 papers

hep-lat2026

First Lattice QCD Determination of Lepton-Flavor-Universality Ratios in Light-Meson Leptonic Decays

Peter Boyle, Norman H. Christ, Xu Feng +4

The ratio of electronic to muonic leptonic decay widths, $R_{e / μ}$ , for the light mesons $π$ and $K$ , provides a clean test of lepton flavor universality (LFU) and a sensitive prob…

hep-lat2025

Lattice Calculation of Light Meson Radiative Leptonic Decays

Peter Boyle, Norman H. Christ, Xu Feng +4

In this work, we perform a lattice QCD calculation of the branching ratios and the form factors of radiative leptonic decays $P \to ℓ ν_{ℓ} γ$ ( $P = π, K$ ) using $N_{f} = 2 + 1$ doma…

hep-lat2025

Using lattice chiral effective theory to study pi-pi scattering

Cameron Cianci, Luchang Jin, Joshua Swaim

We use lattice field theory to study the finite-volume energy spectrum of the $π π$ system in $S U (2)$ chiral effective field theory (ChEFT) at leading order in the chiral expansion.…

hep-lat2025

An exploratory calculation of $K_{L} \to μ^{+} μ^{-}$ decay from Lattice QCD at physical pion mass

Peter Boyle, En-Hung Chao, Norman Christ +3

We compute the complex, long-distance two-photon-exchange amplitude which contributes to the rare $K_{L} \to μ^{+} μ^{-}$ decay from lattice QCD. We use a $2 4^{3} \times 64$ phys…

hep-lat2025

Lattice Calculation of Short-Range Contributions to Neutrinoless Double-Beta Decay $π^{-} \to π^{+} ee$ at Physical Pion Mass

Peter Boyle, Felix Erben, Xu Feng +7

Neutrinoless double-beta ( $0 ν β β$ ) decays provide an excellent probe for determining whether neutrinos are Dirac or Majorana fermions. The short-range matrix elements associated wit…

hep-lat2024

Lattice calculation of electromagnetic corrections to $K ℓ 3$ decay

Norman H. Christ, Xu Feng, Luchang Jin +2

We describe a first-principles method to apply lattice QCD to compute the order $α_{EM}$ corrections to $K \to π ℓ ν_{ℓ}$ decay. This method formulates the calculation in…

hep-lat2023★ 1 cited

$K_{L} \to μ^{+} μ^{-}$ from lattice QCD

En-Hung Chao, Norman H. Christ, Xu Feng +1

We propose a lattice-QCD-suitable framework for computing the two-photon long-distance contribution to the complex $K_{L} \to μ^{+} μ^{-}$ decay amplitude, where QED is treate…

First Lattice QCD Determination of Lepton-Flavor-Universality Ratios in Light-Meson Leptonic Decays

Lattice Calculation of Light Meson Radiative Leptonic Decays

Using lattice chiral effective theory to study pi-pi scattering

An exploratory calculation of KL​→μ+μ− decay from Lattice QCD at physical pion mass

Lattice Calculation of Short-Range Contributions to Neutrinoless Double-Beta Decay π−→π+ee at Physical Pion Mass

Lattice calculation of electromagnetic corrections to Kℓ3 decay

KL​→μ+μ− from lattice QCD

An exploratory calculation of $K_{L} \to μ^{+} μ^{-}$ decay from Lattice QCD at physical pion mass

Lattice Calculation of Short-Range Contributions to Neutrinoless Double-Beta Decay $π^{-} \to π^{+} ee$ at Physical Pion Mass

Lattice calculation of electromagnetic corrections to $K ℓ 3$ decay

$K_{L} \to μ^{+} μ^{-}$ from lattice QCD