Gumaro Rendon

activity

20182021

collaborators

8 papers

hep-lat2021

$Λ_{b} \to Λ_{c}^{*} (2595, 2625) ℓ^{-} ν ˉ$ form factors from lattice QCD

Stefan Meinel, Gumaro Rendon

We present the first lattice-QCD determination of the form factors describing the semileptonic decays $Λ_{b} \to Λ_{c}^{*} (2595) ℓ^{-} ν ˉ$ and $Λ_{b} \to Λ_{c}^{*} (2625) ℓ^{-} ν ˉ$ , where t…

hep-lat2021

P-wave nucleon-pion scattering amplitude in the $Δ (1232)$ channel from lattice QCD

Giorgio Silvi, Srijit Paul, Constantia Alexandrou +9

We determine the $Δ (1232)$ resonance parameters using lattice QCD and the Lüscher method. The resonance occurs in elastic pion-nucleon scattering with $J^{P} = 3/ 2^{+}$ in the isospin $I…

hep-lat2020

$Λ_{b} \to Λ^{*} (1520) ℓ^{+} ℓ^{-}$ form factors from lattice QCD

Stefan Meinel, Gumaro Rendon

We present the first lattice QCD determination of the $Λ_{b} \to Λ^{*} (1520)$ vector, axial vector, and tensor form factors that are relevant for the rare decays $Λ_b \to Λ^*(1520)\ell…

hep-lat2020

$I = 1/2$ $S$ -wave and $P$ -wave $K π$ scattering and the $κ$ and $K^{*}$ resonances from lattice QCD

Gumaro Rendon, Luka Leskovec, Stefan Meinel +6

We present a lattice-QCD determination of the elastic isospin- $1/2$ $S$ -wave and $P$ -wave $K π$ scattering amplitudes as a function of the center-of-mass energy using Lüscher's meth…

hep-lat2018

Towards the P-wave nucleon-pion scattering amplitude in the $Δ (1232)$ channel

Srijit Paul, Giorgio Silvi, Constantia Alexandrou +9

We use lattice QCD and the Lüscher method to study elastic pion-nucleon scattering in the isospin $I = 3/2$ channel, which couples to the $Δ (1232)$ resonance. Our $N_{f} = 2 + 1$ flavor…

hep-lat2018

Calculating the $ρ$ radiative decay width with lattice QCD

Luka Leskovec, Constantia Alexandrou, Stefan Meinel +6

We present the results of our lattice QCD study of the $π γ \to π π$ process, where the $ρ$ resonance appears as an enhancement in the transition amplitude. We use $N_{f} = 2 + 1$ clover fer…

Λb​→Λc∗​(2595,2625)ℓ−νˉ form factors from lattice QCD

P-wave nucleon-pion scattering amplitude in the Δ(1232) channel from lattice QCD

Λb​→Λ∗(1520)ℓ+ℓ− form factors from lattice QCD

I=1/2 S-wave and P-wave Kπ scattering and the κ and K∗ resonances from lattice QCD

Towards the P-wave nucleon-pion scattering amplitude in the Δ(1232) channel