Gumaro Rendon

activity

20162025

most cited

P

-wave

π π

scattering and the

ρ

resonance from lattice QCD

101 citations · 365 across the 22 of their papers we have counts for

collaborators

Showing hep-latShow all

15 papers · 1 filter

hep-lat2024

Lattice outlook on $B \to ρ ℓ ν ˉ$ and $B \to K^{⋆} ℓℓ$

Luka Leskovec, Stefan Meinel, Marcus Petschlies +4

Lattice Quantum Chromodynamics (QCD) has significantly contributed to our understanding of the CKM matrix through precise determinations of hadronic matrix elements. With advanceme…

hep-lat2022★ 1 cited

A lattice QCD study of the $B \to π π ℓ ν ˉ$ transition

Luka Leskovec, Stefan Meinel, Marcus Petschlies +4

$V_{u b}$ is the smallest and least known of all CKM matrix elements; the community currently determines its magnitude primarily through the exclusive process $B \to π ℓ ν ˉ$ . Here…

hep-lat2021★ 37 cited

$Λ_{c} \to Λ^{} (1520)$ form factors from lattice QCD and improved analysis of the $Λ_{b} \to Λ^{} (1520)$ and $Λ_{b} \to Λ_{c}^{*} (2595, 2625)$ form factors

Stefan Meinel, Gumaro Rendon

We present the first lattice-QCD calculation of the form factors governing the charm-baryon semileptonic decays $Λ_{c} \to Λ^{*} (1520) ℓ^{+} ν_{ℓ}$ . As in our previous calculation of t…

hep-lat2021★ 25 cited

$Λ_{b} \to Λ_{c}^{*} (2595, 2625) ℓ^{-} ν ˉ$ 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★ 34 cited

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★ 30 cited

$Λ_{b} \to Λ^{*} (1520) ℓ^{+} ℓ^{-}$ 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★ 27 cited

$I = 1/2$ $S$ -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…

hep-lat2018★ 1 cited

$K π$ scattering and the $K^{*} (892)$ resonance in 2+1 flavor QCD

Gumaro Rendon, Luka Leskovec, Stefan Meinel +6

In this project, we will compute the form factors relevant for $B \to K^{*} (\to K π) ℓ^{+} ℓ^{-}$ decays. To map the finite-volume matrix elements computed on the lattice to the infi…

hep-lat2018★ 1 cited

A Lattice QCD study of the $ρ$ resonance

Luka Leskovec, Constantia Alexandrou, Stefan Meinel +6

We present a lattice QCD study of the $ρ$ resonance with $N_{f} = 2 + 1$ clover fermions at a pion mass of approximately $320$ MeV and lattice size $3.6$ fm. We consider two processes in…

hep-lat2018★ 54 cited

The $π γ \to π π$ transition and the $ρ$ radiative decay width from lattice QCD

Constantia Alexandrou, Luka Leskovec, Stefan Meinel +6

We report a lattice QCD determination of the $π γ \to π π$ transition amplitude for the $P$ -wave, $I = 1$ two-pion final state, as a function of the photon virtuality and $π π$ invariant…

hep-lat2017★ 101 cited

$P$ -wave $π π$ scattering and the $ρ$ resonance from lattice QCD

Constantia Alexandrou, Luka Leskovec, Stefan Meinel +6

We calculate the parameters describing elastic $I = 1$ , $P$ -wave $π π$ scattering using lattice QCD with $2 + 1$ flavors of clover fermions. Our calculation is performed with a pion mas…

hep-lat2016★ 1 cited

A study of the radiative transition $π π \to π γ^{*}$ with lattice QCD

Luka Leskovec, Constantia Alexandrou, Giannis Koutsou +7

Lattice QCD calculations of radiative transitions between hadrons have in the past been limited to processes of hadrons stable under the strong interaction. Recently developed meth…

hep-lat2016★ 2 cited

Lattice QCD calculation of form factors for $Λ_{b} \to Λ (1520) ℓ^{+} ℓ^{-}$ decays

Stefan Meinel, Gumaro Rendon

Experimental results for mesonic $b \to s μ^{+} μ^{-}$ decays show a pattern of deviations from Standard-Model predictions, which could be due to new fundamental physics or due to an i…

Lattice outlook on B→ρℓνˉ and B→K⋆ℓℓ

A lattice QCD study of the B→ππℓνˉ transition

Λc​→Λ∗(1520) form factors from lattice QCD and improved analysis of the Λb​→Λ∗(1520) and Λb​→Λc∗​(2595,2625) form factors

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

Calculating the ρ radiative decay width with lattice QCD

Kπ scattering and the K∗(892) resonance in 2+1 flavor QCD

A Lattice QCD study of the ρ resonance

The πγ→ππ transition and the ρ radiative decay width from lattice QCD

P-wave ππ scattering and the ρ resonance from lattice QCD

A study of the radiative transition ππ→πγ∗ with lattice QCD

Lattice QCD calculation of form factors for Λb​→Λ(1520)ℓ+ℓ− decays

Lattice outlook on $B \to ρ ℓ ν ˉ$ and $B \to K^{⋆} ℓℓ$

A lattice QCD study of the $B \to π π ℓ ν ˉ$ transition

$Λ_{c} \to Λ^{} (1520)$ form factors from lattice QCD and improved analysis of the $Λ_{b} \to Λ^{} (1520)$ and $Λ_{b} \to Λ_{c}^{*} (2595, 2625)$ form factors

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

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

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

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

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

Calculating the $ρ$ radiative decay width with lattice QCD

$K π$ scattering and the $K^{*} (892)$ resonance in 2+1 flavor QCD

A Lattice QCD study of the $ρ$ resonance

The $π γ \to π π$ transition and the $ρ$ radiative decay width from lattice QCD

$P$ -wave $π π$ scattering and the $ρ$ resonance from lattice QCD

A study of the radiative transition $π π \to π γ^{*}$ with lattice QCD

Lattice QCD calculation of form factors for $Λ_{b} \to Λ (1520) ℓ^{+} ℓ^{-}$ decays