L. Leskovec

activity

20122026

most cited

D_{s 0}^{*} (2317)

Meson and

D

-Meson-Kaon Scattering from Lattice QCD

204 citations · 1.6k across the 41 of their papers we have counts for

collaborators

43 papers

hep-lat2026

Electromagnetic form factors and structure of the $T_{bb}$ tetraquark

Ivan Vujmilovic, Sara Collins, Luka Leskovec +1

We present the first lattice QCD calculation of electromagnetic form factors of a tetraquark, focusing on the $T_{bb} = bb u ˉ d ˉ$ with quantum numbers $I (J^{P}) = 0 (1^{+})$ . The…

hep-lat2025

Electromagnetic form factors and structure of the $T_{bb}$ tetraquark from lattice QCD

Ivan Vujmilovic, Sara Collins, Luka Leskovec +1

We present the first lattice QCD determination of the electromagnetic form factors of the exotic tetraquark $T_{bb} (bb u ˉ d ˉ)$ with quantum numbers $I (J^{P}) = 0 (1^{+})$ …

hep-lat2025

Doubly heavy tetraquarks from lattice QCD: incorporating diquark-antidiquark operators and the left-hand cut

S. Prelovsek, E. Ortiz-Pacheco, S. Collins +3

Lattice studies of the doubly-charm tetraquark $T_{cc} = cc u ˉ d ˉ$ require the determination of the $D D^{*}$ scattering amplitude, which most often incorporate only meson-meson i…

hep-lat2025★ 11 cited

$B \to ρ ℓ ν ˉ$ resonance form factors from $B \to π π ℓ ν ˉ$ in lattice QCD

Luka Leskovec, Stefan Meinel, Marcus Petschlies +3

The decay $B \to ρ ℓ ν ˉ$ is an attractive process for determining the magnitude of the smallest CKM matrix element, $∣ V_{u b} ∣$ , and can provide new insights into the origin of…

hep-lat2024

$T_{cc}^{+}$ via the plane wave approach and including diquark-antidiquark operators

Ivan Vujmilovic, Sara Collins, Luka Leskovec +3

The determination of the $D D^{*}$ scattering amplitude from lattice QCD is complicated by long-range interactions. In particular, the Lüscher method is no longer applicable in the…

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-lat2024★ 1 cited

Electroweak Transitions Involving Resonances

Luka Leskovec

The increasing importance of hadronic resonances in our understanding of the Standard Model is underscored by recent advancements in lattice Quantum Chromodynamics (QCD) calculatio…

hep-lat2023★ 7 cited

Doubly charmed tetraquark: isospin channels and diquark-antidiquark interpolators

Emmanuel Ortiz-Pacheco, Sara Collins, Luka Leskovec +2

We perform a lattice simulation to investigate the doubly charmed tetraquark $T_{cc}^{+}$ observed by the LHCb collaboration, slightly below the $D^{*+} D^{0}$ threshold, with flavor co…

nucl-ex2023★ 19 cited

Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab

A. Accardi, P. Achenbach, D. Adhikari +441

This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a…

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★ 9 cited

Existence and Non-Existence of Doubly Heavy Tetraquark Bound States

Martin Pflaumer, Luka Leskovec, Stefan Meinel +1

In this work we investigate the existence of bound states for doubly heavy tetraquark systems $Q ˉ Q ˉ^{'} q q^{'}$ in a full lattice-QCD computation, where heavy bottom quarks ar…

hep-lat2021★ 30 cited

Constraining $1 + J \to 2$ coupled-channel amplitudes in finite-volume

Raul A. Briceno, Jozef J. Dudek, Luka Leskovec

Whether one is interested in accessing the excited spectrum of hadrons or testing the standard model of particle physics, electroweak transition processes involving multi-hadron ch…

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★ 1 cited

Investigation of Doubly Heavy Tetraquark Systems using Lattice QCD

Martin Pflaumer, Luka Leskovec, Stefan Meinel +1

We search for possibly existent bound states in the heavy-light tetraquark channels with quark content $b ˉ b ˉ u d$ , $b ˉ b ˉ u s$ and $b ˉ c ˉ u d$ using lat…

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-lat2019★ 128 cited

Lattice QCD investigation of a doubly-bottom $b ˉ b ˉ u d$ tetraquark with quantum numbers $I (J^{P}) = 0 (1^{+})$

Luka Leskovec, Stefan Meinel, Martin Pflaumer +1

We use lattice QCD to investigate the spectrum of the $b ˉ b ˉ u d$ four-quark system with quantum numbers $I (J^{P}) = 0 (1^{+})$ . We use five different gauge-link ensembles wit…

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★ 5 cited

A lattice QCD study of pion-nucleon scattering in the Roper channel

Luka Leskovec, Christian B. Lang, M. Padmanath +1

We present a lattice QCD study of the puzzling positive-parity nucleon channel, where the Roper resonance $N^{*} (1440)$ resides in experiment. The study is based on an ensemble of ga…

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★ 3 cited

$N π$ scattering in the Roper channel

M. Padmanath, C. B. Lang, Luka Leskovec +1

We present results from our recent lattice QCD study of $N π$ scattering in the positive-parity nucleon channel, where the puzzling Roper resonance $N^{*} (1440)$ resides in experiment…

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…

Electromagnetic form factors and structure of the Tbb​ tetraquark

Electromagnetic form factors and structure of the Tbb​ tetraquark from lattice QCD

Doubly heavy tetraquarks from lattice QCD: incorporating diquark-antidiquark operators and the left-hand cut

B→ρℓνˉ resonance form factors from B→ππℓνˉ in lattice QCD

Tcc+​ via the plane wave approach and including diquark-antidiquark operators

Lattice outlook on B→ρℓνˉ and B→K⋆ℓℓ

Electroweak Transitions Involving Resonances

Doubly charmed tetraquark: isospin channels and diquark-antidiquark interpolators

Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab

A lattice QCD study of the B→ππℓνˉ transition

Existence and Non-Existence of Doubly Heavy Tetraquark Bound States

Constraining 1+J→2 coupled-channel amplitudes in finite-volume

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

Investigation of Doubly Heavy Tetraquark Systems using Lattice QCD

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

Lattice QCD investigation of a doubly-bottom bˉbˉud tetraquark with quantum numbers I(JP)=0(1+)

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