William I. Jay
YOU?
Author Swipe
View article: Bayesian analysis and analytic continuation of scattering amplitudes from lattice QCD
Bayesian analysis and analytic continuation of scattering amplitudes from lattice QCD Open
We present a novel procedure for analyzing the lattice QCD spectrum via the finite-volume formalism to obtain constraints on multihadron scattering amplitudes at both real and complex energies. This approach combines a Bayesian reconstruct…
View article: Moment problems and bounds for matrix-valued smeared spectral functions
Moment problems and bounds for matrix-valued smeared spectral functions Open
Numerical analytic continuation arises frequently in lattice field theory, particularly in spectroscopy problems. This work shows the equivalence of common spectroscopic problems to certain classes of moment problems that have been studied…
View article: Constraints on the finite volume two-nucleon spectrum at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>m</mml:mi><mml:mi>π</mml:mi></mml:msub><mml:mo>≈</mml:mo><mml:mn>806</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>MeV</mml:mi></mml:math>
Constraints on the finite volume two-nucleon spectrum at Open
The low-energy, finite-volume spectrum of the two-nucleon system at a quark mass corresponding to a pion mass of mπ≈806 MeV is studied with lattice quantum chromodynamics (LQCD) using variational methods. The interpolating-operator sets u…
View article: Hadronic Vacuum Polarization for the Muon <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> from Lattice QCD: Long-Distance and Full Light-Quark Connected Contribution
Hadronic Vacuum Polarization for the Muon from Lattice QCD: Long-Distance and Full Light-Quark Connected Contribution Open
We present results for the dominant light-quark connected contribution to the long-distance window of the hadronic vacuum polarization (HVP) contribution to the muon g−2 from lattice quantum chromodynamics. Specifically, with a new determi…
View article: Hadronic vacuum polarization for the muon <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> from lattice QCD: Complete short and intermediate windows
Hadronic vacuum polarization for the muon from lattice QCD: Complete short and intermediate windows Open
We present complete results for the hadronic vacuum polarization (HVP) contribution to the muon anomalous magnetic moment aμ in the short- and intermediate-distance window regions, which account for roughly 10% and 35% of the total HVP con…
View article: $B\rightarrow D^{(*)}$ decays from $N_f=2+1+1$ highly improved staggered quarks and clover $b$-quark in the Fermilab interpretation
$B\rightarrow D^{(*)}$ decays from $N_f=2+1+1$ highly improved staggered quarks and clover $b$-quark in the Fermilab interpretation Open
We present an update on the analysis of semileptonic $B\rightarrow D^{(*)}$ decays at non-zero recoil. Our computation employs $2 + 1 + 1$ FNAL-MILC ensembles with highly improved staggered quark (HISQ) action for sea and light valence qua…
View article: Theoretical tools for neutrino scattering: interplay between lattice QCD, EFTs, nuclear physics, phenomenology, and neutrino event generators
Theoretical tools for neutrino scattering: interplay between lattice QCD, EFTs, nuclear physics, phenomenology, and neutrino event generators Open
Maximizing the discovery potential of increasingly precise neutrino experiments will require an improved theoretical understanding of neutrino-nucleus cross sections over a wide range of energies. Low-energy interactions are needed to reco…
View article: Approaching the Inverse Problem: Toward Lattice QCD Calculations of Inclusive Hadronic Quantities
Approaching the Inverse Problem: Toward Lattice QCD Calculations of Inclusive Hadronic Quantities Open
In this talk, I describe some recent ideas relating to the spectral reconstruction inverse problem, which arises frequently in lattice QCD calculations of inclusive hadronic quantities, and provide some physical context for this work. Part…
View article: Hadronic vacuum polarization for the muon $g-2$ from lattice QCD: Long-distance and full light-quark connected contribution
Hadronic vacuum polarization for the muon $g-2$ from lattice QCD: Long-distance and full light-quark connected contribution Open
We present results for the dominant light-quark connected contribution to the long-distance window (LD) of the hadronic vacuum polarization contribution (HVP) to the muon $g-2$ from lattice quantum chromodynamics (QCD). Specifically, with …
View article: Toward inclusive observables with staggered quarks: the smeared $R$~ratio
Toward inclusive observables with staggered quarks: the smeared $R$~ratio Open
Inclusive hadronic observables are ubiquitous in particle and nuclear physics. Computation of these observables using lattice QCD is challenging due the presence of a difficult inverse problem. As a stepping stone to more complicated obser…
View article: Hadronic vacuum polarization for the muon $g-2$ from lattice QCD: Complete short and intermediate windows
Hadronic vacuum polarization for the muon $g-2$ from lattice QCD: Complete short and intermediate windows Open
We present complete results for the hadronic vacuum polarization (HVP) contribution to the muon anomalous magnetic moment $a_μ$ in the short- and intermediate-distance window regions, which account for roughly 10% and 35% of the total HVP …
View article: Long-distance nuclear matrix elements for neutrinoless double-beta decay from lattice QCD
Long-distance nuclear matrix elements for neutrinoless double-beta decay from lattice QCD Open
Neutrinoless double-beta (0νββ) decay is a heretofore unobserved process which, if observed, would imply that neutrinos are Majorana particles. Interpretations of the stringent experimental constraints on 0νββ-decay half-lives require calc…
View article: Multiparticle interpolating operators in quantum field theories with cubic symmetry
Multiparticle interpolating operators in quantum field theories with cubic symmetry Open
Numerical studies of lattice quantum field theories are conducted in finite spatial volumes, typically with cubic symmetry in the spatial coordinates. Motivated by these studies, this work presents a general algorithm to construct multipar…
View article: B-meson semileptonic decays from highly improved staggered quarks
B-meson semileptonic decays from highly improved staggered quarks Open
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 highly improvedaction, combined with the MILC collaboration’s gau…
View article: Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation
Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation Open
We compute the vector, scalar, and tensor form factors for the $B\\to \\pi$, $B\\to K$, and $B_s\\to K$ amplitudes, which are needed to describe semileptonic $B$-meson decay rates for both the charged and neutral current cases. We use the …
View article: Update on the gradient flow scale on the 2+1+1 HISQ ensembles
Update on the gradient flow scale on the 2+1+1 HISQ ensembles Open
We report on the ongoing effort of improving the determination of the gradient flow scale on the (2+1+1)-flavor HISQ ensembles generated by the MILC collaboration. We compute the scales $\sqrt{t_0}/a$ and $w_0/a$ with the Wilson and Symanz…
View article: Constraints on the finite volume two-nucleon spectrum at $m_π\approx 806$ MeV
Constraints on the finite volume two-nucleon spectrum at $m_π\approx 806$ MeV Open
The low-energy finite-volume spectrum of the two-nucleon system at a quark mass corresponding to a pion mass of $m_π\approx 806$ MeV is studied with lattice quantum chromodynamics (LQCD) using variational methods. The interpolating-operato…
View article: Summary of the CKM 2023 Working Group on $V_{ub}$, $V_{cb}$ and semileptonic/leptonic B decays including $τ$
Summary of the CKM 2023 Working Group on $V_{ub}$, $V_{cb}$ and semileptonic/leptonic B decays including $τ$ Open
This work summarizes recent results, both theoretical and experimental, in $B$-meson leptonic and semileptonic decays and metrology of $V_{ub}$ and $V_{cb}$, which were presented at the CKM 2023 workshop. We place these results in context …
View article: Multi-angular airborne observations for simulating thermal directionality at the satellite scale
Multi-angular airborne observations for simulating thermal directionality at the satellite scale Open
Viewing and illumination geometry are known to have significant impacts on remotely sensed retrieval of land surface temperature (LST), particularly for heterogeneous regions with mixed components. Disregarding directional effects can have…
View article: Multi-particle interpolating operators in quantum field theories with cubic symmetry
Multi-particle interpolating operators in quantum field theories with cubic symmetry Open
Numerical studies of lattice quantum field theories are conducted in finite spatial volumes, typically with cubic symmetry in the spatial coordinates. Motivated by these studies, this work presents a general algorithm to construct multi-pa…
View article: Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation
Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation Open
We compute the vector, scalar, and tensor form factors for the $B\to π$, $B\to K$, and $B_s\to K$ amplitudes, which are needed to describe semileptonic $B$-meson decay rates for both the charged and neutral current cases. We use the highly…
View article: $B$-meson semileptonic decays from highly improved staggered quarks
$B$-meson semileptonic decays from highly improved staggered quarks Open
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 highly improved action, combined with the MILC collaboration's …
View article: Update on the gradient flow scale on the 2+1+1 HISQ ensembles
Update on the gradient flow scale on the 2+1+1 HISQ ensembles Open
We report on the ongoing effort of improving the determination of the gradient flow scale on the (2+1+1)-flavor HISQ ensembles generated by the MILC collaboration. We compute the scales $\sqrt{t_0}/a$ and $w_0/a$ with the Wilson and Symanz…
View article: Nuclear Matrix Elements for Neutrinoless Double-Beta Decay from Lattice QCD
Nuclear Matrix Elements for Neutrinoless Double-Beta Decay from Lattice QCD Open
Neutrinoless double-beta decay (0vbb) is a hypothetical nuclear decay that is only possible if the neutrino is a Majorana fermion. Experimental searches for this process with ever-increasing sensitivity have placed strong constraints on th…
View article: Hadronic structure, conformal maps, and analytic continuation
Hadronic structure, conformal maps, and analytic continuation Open
We present a method for analytic continuation of retarded Green's functions, including Euclidean Green's functions computed using lattice QCD. The method is based on conformal maps and construction of an interpolation function which is ana…
View article: Light-quark connected intermediate-window contributions to the muon <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn></mml:math> hadronic vacuum polarization from lattice QCD
Light-quark connected intermediate-window contributions to the muon hadronic vacuum polarization from lattice QCD Open
We present a lattice-QCD calculation of the light-quark connected contribution to window observables
\nassociated with the leading-order hadronic vacuum polarization contribution to the anomalous magnetic
\nmoment of the muon, aHVP;LO
\nμ …
View article: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>D</mml:mi></mml:math>-meson semileptonic decays to pseudoscalars from four-flavor lattice QCD
-meson semileptonic decays to pseudoscalars from four-flavor lattice QCD Open
We present lattice-QCD calculations of the hadronic form factors for the semileptonic decays D→πℓν, D→Kℓν, and Ds→Kℓν. Our calculation uses the highly improved staggered quark (HISQ) action for all valence and sea quarks and includes Nf=2+…
View article: Hadronic Structure, Conformal Maps, and Analytic Continuation
Hadronic Structure, Conformal Maps, and Analytic Continuation Open
We present a method for analytic continuation of retarded Green functions, including Euclidean Green functions computed using lattice QCD. The method is based on conformal maps and construction of an interpolation function which is analyti…