Andrew Lytle

Nucleon structure from 2+1-flavor dynamical DWF ensembles

Michael Abramczyk, Meifeng Lin, Andrew Lytle +1

Nucleon isovector vector- and axialvector-current form factors, the renormalized isovector transversity and scalar charge, and the bare quark momentum and helicity moments of isove…

Using Wilson flow to study the SU(3) deconfinement transition

Saumen Datta, Sourendu Gupta, Andrew Lytle

We explore the use of Wilson flow to study the deconfinement transition in SU(3) gauge theory. We use the flowed Polyakov loop as a renormalized order parameter for the transition,…

Renormalization $&$ improvement of the tensor operator for $N_{f} = 3$ QCD in a $I ¨ $ SF setup

Isabel Campos Plasencia, Mattia Dalla Brida, Giulia Maria de Divitiis +4

We present preliminary results of the non-perturbative renormalization group (RG) running of the flavor non-singlet tensor operator. We employ the $I ¨ $ SF scheme for $N_{f} = 3$ QCD usi…

Nucleon mass and isovector couplings in 2+1-flavor dynamical domain-wall lattice QCD near physical mass

Michael Abramczyk, Thomas Blum, Taku Izubuchi +5

We report nucleon mass, isovector vector and axial-vector charges, and tensor and scalar couplings, calculated using two recent 2+1-flavor dynamical domain-wall fermions lattice-QC…

hep-lat2024

Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation

Hwancheol Jeong, Carleton DeTar, Aida El-Khadra +7

We compute the vector, scalar, and tensor form factors for the $B \to I ¨ $ , $B \to K$ , and $B_{s} \to K$ amplitudes, which are needed to describe semileptonic $B$ -meson decay rates for b…

hep-lat2025

$B \to D^{(*)}$ decays from $N_{f} = 2 + 1 + 1$ highly improved staggered quarks and clover $b$ -quark in the Fermilab interpretation

Pietro Butti, Carleton DeTar, Aida El-Khadra +9

We present an update on the analysis of semileptonic $B \to D^{(*)}$ decays at non-zero recoil. Our computation employs $2 + 1 + 1$ FNAL-MILC ensembles with highly improved…

Semileptonic $B_{c}$ decays from full lattice QCD

Andrew Lytle, Brian Colquhoun, Christine Davies +2

We present first lattice QCD results for semileptonic form factors for the decays $B_{c} \to I^\cdot_{c} l I^½$ and $B_{c} \to J / I ¨ l I^½$ over the full $q^{2}$ range, using both improved non-rela…

hep-lat2025

Quantum Circuits for SU(3) Lattice Gauge Theory

Praveen Balaji, CianÃ¡n Conefrey-Shinozaki, Patrick Draper +5

Lattice gauge theories in varying dimensions, lattice volumes, and truncations offer a rich family of targets for Hamiltonian simulation on quantum devices. In return, formulating…

Lattice $B \to D^{()}$ form factors, $R (D^{()})$ , and $∣ V_{c b} ∣$

Andrew Lytle

I discuss recent progress in lattice calculations of $B \to D^{(*)} ℓ I^½$ form factors, important for the precision determination of $∣ V_{c b} ∣$ in the Standard Model (SM), and f…

$R (J / I ¨ )$ and $B_{c}^{-} \to J / I ¨ ℓ^{-} I^ˉ ½_{ℓ}$ Lepton Flavor Universality Violating Observables from Lattice QCD

Judd Harrison, Christine T. H. Davies, Andrew Lytle

We use our lattice QCD computation of the $B_{c} \to J / I ¨ $ form factors to determine the differential decay rate for the semitauonic decay channel and construct the ratio of b…

hep-lat2025

Using AI for Efficient Statistical Inference of Lattice Correlators Across Mass Parameters

Octavio Vega, Andrew Lytle, Jiayu Shen +1

Lattice QCD is notorious for its computational expense. Modern lattice simulations require large-scale computational resources to handle the large number of Dirac operator inversio…

hep-lat2023

Nonperturbative running of the tensor operator for $N_\rm{f}=3$ QCD from the chirally rotated SchrÃ¶dinger Functional

Isabel Campos Plasencia, Mattia Dalla Brida, Giulia Maria de Divitiis +4

We study the Renormalisation Group (RG) running of the non-singlet tensor operator, for $N_{f} = 3$ QCD with Wilson fermions in a mixed action setup, with standar…

B- and D-meson semileptonic decays with highly improved staggered quarks

William I Jay, Andrew Lytle, Carleton DeTar +7

We present results for $B_{(s)}$ - and $D_{(s)}$ -meson semileptonic decays from ongoing calculations by the Fermilab Lattice and MILC Collaborations. Our calculation employs the hig…

hep-lat2017

The $B_{(s)} \to D_{(s)} l I^½$ Decay with Highly Improved Staggered Quarks and NRQCD

Euan McLean, Christine T. H. Davies, Brian Colquhoun +1

We report on progress of a lattice QCD calculation of the $B \to D l I^½$ and $B_{s} \to D_{s} l I^½$ semileptonic form factors. We use a relativistic staggered action (HISQ) for light and ch…

hep-lat2018

$B_{c}$ spectroscopy using highly improved staggered quarks

Andrew Lytle, Brian Colquhoun, Christine Davies +1

We report on a calculation of $B_{c}$ ground state and radial excitation energies, obtained from heavy-charm highly improved staggered quark (HISQ) correlators computed on MILC gauge…

Looking at the deconfinement transition using Wilson flow

Saumen Datta, Sourendu Gupta, Andrew Lytle

Wilson flow is an effective tool for constructing renormalized composite operators. We explore use of the Wilson flow to construct renormalized order parameters for the deconfineme…

Quark mass RG-running for $N_{f}$ =3 QCD in a $I ¨ S F$ setup

Isabel Campos Plasencia, Mattia Dalla Brida, Giulia Maria de Divitiis +4

We compute the nonperturbative quark mass RG-running in the range $I^_{QC D} ⪅ I^¼ ⪅ M_{W}$ for $N_{f} = 3$ massless QCD with a mixed action approach: sea quarks are regul…

hep-lat2026

$B \to I ¨ $ , $B_{(s)} \to D_{(s)}$ from 2+1+1 Flavor Lattice QCD

Nicholas Cassar, Akhil Chauhan, Carleton DeTar +8

We present a lattice-QCD calculation of the hadronic form factors for $B$ -meson semileptonic decays computed using the highly improved staggered quark action for both valence and s…

Nonperturbative running of the quark mass for $N_{f} = 3$ QCD from the chirally rotated SchrÃ¶dinger Functional

Isabel Campos Plasencia, Mattia Dalla Brida, Giulia Maria de Divitiis +4

We study the Renormalisation Group (RG) running of the quark mass, for $N_{f} = 3$ QCD with Wilson fermions in a mixed action setup, with standard SchrÃ¶dinger Functional (SF) boundary…

hep-lat2024

$B$ -meson semileptonic decays from highly improved staggered quarks

Andrew Lytle, Carleton DeTar, Aida El-Khadra +7

We present an update for results on $B$ -meson semileptonic decays using the highly improved staggered quark (HISQ) action for both valence and 2+1+1 sea quarks. The use of the high…

hep-lat2019

$I ¨ $ SF near the electroweak scale

Isabel Campos, Mattia Dalla Brida, Giulia Maria de Divitiis +3

We employ the chirally rotated SchrÃ¶dinger functional ( $I ¨ $ SF) to study two-point fermion bilinear correlation functions used in the determination of $Z_{A, V, S, P, T}$ on a series o…

hep-lat2017

Light meson form factors at high $Q^{2}$ from lattice QCD

Measurements and theoretical calculations of meson form factors are essential for our understanding of internal hadron structure and QCD, the dynamics that bind the quarks in hadro…

hep-lat2015

Wilson flow with naive staggered quarks

Saumen Datta, Sourendu Gupta, Anirban Lahiri +2

Scale setting for QCD with two flavours of staggered quarks is examined using Wilson flow over a factor of four change in both the lattice spacing and the pion mass. The statistics…

hep-lat2026

Untangling the heavy-flavor mess: status of the Fermilab-MILC calculation of the $B_{(s)} \to D_{(s)}^{(*)} ℓ I^½$ form factors

Alejandro Vaquero, Carleton DeTar, Aida El-Khadra +6

We present the status of calculations of the form factors of the most relevant heavy-to-heavy and heavy-to-light decay channels. Using seven $N_{f} = 2 + 1 + 1$ HISQ ensembles, with latt…

hep-lat2023

$B$ -meson semileptonic decays with highly improved staggered quarks

Andrew Lytle, Carleton DeTar, Aida El-Khadra +6

We present an update of the Fermilab Lattice and MILC Collaborations project to compute the form factors for semileptonic $B_{(s)}$ -meson decays. Our calculation uses the highly im…

$B_{c}$ decays from highly improved staggered quarks and NRQCD

Brian Colquhoun, Christine Davies, Jonna Koponen +2

We calculate semileptonic form factors for the decays $B_{c} \to I^\cdot_{c} l I^½$ and $B_{c} \to J / I ¨ l I^½$ over the entire $q^{2}$ range, using a highly improved lattice quark action for…

quant-ph2024

Fast Partitioning of Pauli Strings into Commuting Families for Optimal Expectation Value Measurements of Dense Operators

Ben Reggio, Nouman Butt, Andrew Lytle +1

The Pauli strings appearing in the decomposition of an operator can be can be grouped into commuting families, reducing the number of quantum circuits needed to measure the expecta…

hep-lat2022

RG-running of the tensor currents for $N_{f}$ =3 QCD in a $I ¨ S F$ setup

Isabel Campos Plasencia, Mattia Dalla Brida, Giulia Maria de Divitiis +4

We present the preliminary results of the non-perturbative running of the flavour non-singlet tensor operator in the high-energy range $2 GeV ≲ I^¼ ≲ 128 GeV$ …

hep-lat2026

Perturbation theory, irrep truncations, and state preparation methods for quantum simulations of SU(3) lattice gauge theory

Praveen Balaji, Cianan Conefrey-Shinozaki, Patrick Draper +4

We study methods for efficient preparation of approximate ground states of $S U (3)$ lattice gauge theory on quantum hardware. Working in a variant of the electric basis, we introduc…