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View article: Probing how bright the quark-gluon plasma glows in lattice QCD
Probing how bright the quark-gluon plasma glows in lattice QCD Open
Determining the spectrum of photons emitted by the quark-gluon plasma nonperturbatively remains an open computational challenge. In this paper, we calculate two moments of that spectrum at a tem-perature T≈254 MeV, employing lattice QCD w…
View article: Probing how bright the quark-gluon plasma glows in lattice QCD
Probing how bright the quark-gluon plasma glows in lattice QCD Open
Determining the spectrum of photons emitted by the quark-gluon plasma nonperturbatively remains an open computational challenge. In this paper, we calculate two moments of that spectrum at a tem-perature T ≈ 254 MeV, employing lattice QCD …
View article: The anomalous magnetic moment of the muon in the Standard Model: an update
The anomalous magnetic moment of the muon in the Standard Model: an update Open
We present the current Standard Model (SM) prediction for the muon anomalous magnetic moment, $a_μ$, updating the first White Paper (WP20) [1]. The pure QED and electroweak contributions have been further consolidated, while hadronic contr…
View article: The hyperfine splitting in QCD mesonic screening masses at asymptotically large temperatures
The hyperfine splitting in QCD mesonic screening masses at asymptotically large temperatures Open
A bstract We determine the hyperfine splitting in the QCD flavour non-singlet mesonic screening masses at asymptotically large temperatures. The analytic calculation is carried out in the dimensionally-reduced effective theory where the fi…
View article: The hyperfine splitting in QCD mesonic screening masses at asymptotically large temperatures
The hyperfine splitting in QCD mesonic screening masses at asymptotically large temperatures Open
We determine the hyperfine splitting in the QCD flavour non-singlet mesonic screening masses at asymptotically large temperatures. The analytic calculation is carried out in the dimensionally-reduced effective theory where the first non-ze…
View article: Hot QCD matter around the chiral crossover: a lattice study with $O(a)$-improved Wilson fermions
Hot QCD matter around the chiral crossover: a lattice study with $O(a)$-improved Wilson fermions Open
Using lattice QCD simulations with $O(a)$-improved Wilson quarks and physical up, down and strange quark masses, we investigate the properties of thermal QCD matter at the temperatures $T=\{128,154,192\}\mathrm{MeV}$ with a fixed lattice s…
View article: The thermal photon emissivity at the QCD chiral crossover from imaginary momentum correlators
The thermal photon emissivity at the QCD chiral crossover from imaginary momentum correlators Open
The thermal photon emissivity at the QCD chiral crossover is investigated using imaginary momentum correlators. These have been measured on a newly generated 20 × 963 lattice-QCD ensemble with O(a)-improved Wilson quarks and physical up, d…
View article: Hadronic vacuum polarization in the muon g − 2: the short-distance contribution from lattice QCD
Hadronic vacuum polarization in the muon g − 2: the short-distance contribution from lattice QCD Open
A bstract We present results for the short-distance window observable of the hadronic vacuum polarization contribution to the muon g – 2, computed via the time-momentum representation (TMR) in lattice QCD. A key novelty of our calculation …
View article: Hadronic vacuum polarization in the muon $g-2$: The short-distance contribution from lattice QCD
Hadronic vacuum polarization in the muon $g-2$: The short-distance contribution from lattice QCD Open
We present results for the short-distance window observable of the hadronic vacuum polarization contribution to the muon $g-2$, computed via the time-momentum representation (TMR) in lattice QCD. A key novelty of our calculation is the red…
View article: The thermal photon emissivity at the QCD chiral crossover from imaginary momentum correlators
The thermal photon emissivity at the QCD chiral crossover from imaginary momentum correlators Open
The thermal photon emissivity at the QCD chiral crossover is investigated using imaginary momentum correlators. These have been measured on a newly generated $20 \times 96^3$ lattice-QCD ensemble with $\mathcal{O}(a)$-improved Wilson quark…
View article: Probing the photon emissivity of the quark-gluon plasma without an inverse problem in lattice QCD
Probing the photon emissivity of the quark-gluon plasma without an inverse problem in lattice QCD Open
The thermal photon emissivity of the quark-gluon plasma is determined by the in-medium spectral function of the electromagnetic current at lightlike kinematics, $σ(ω)$. In this work, we present the first lattice QCD results on moments of $…
View article: Exploiting stochastic locality in lattice QCD: hadronic observables and their uncertainties
Exploiting stochastic locality in lattice QCD: hadronic observables and their uncertainties Open
A bstract Because of the mass gap, lattice QCD simulations exhibit stochastic locality: distant regions of the lattice fluctuate independently. There is a long history of exploiting this to increase statistics by obtaining multiple spatial…
View article: Exploiting stochastic locality in lattice QCD: hadronic observables and their uncertainties
Exploiting stochastic locality in lattice QCD: hadronic observables and their uncertainties Open
Because of the mass gap, lattice QCD simulations exhibit stochastic locality: distant regions of the lattice fluctuate independently. There is a long history of exploiting this to increase statistics by obtaining multiple spatially-separat…
View article: Intermediate window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from O$(a)$ improved Wilson quarks
Intermediate window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from O$(a)$ improved Wilson quarks Open
Following the publication of the new measurement of the anomalous magnetic moment of the muon, the discrepancy between experiment and the theory prediction from the $g-2$ theory initiative has increased to $4.2\\,\\sigma$. Recent lattice Q…
View article: Estimation of the photon production rate using imaginary momentum correlators
Estimation of the photon production rate using imaginary momentum correlators Open
The thermal photon emission rate is determined by the spatially transverse, in-medium spectral function of the electromagnetic current. Accessing the spectral function using Euclidean data is, however, a challenging problem due to the ill-…
View article: Hadronic observables from master-field simulations
Hadronic observables from master-field simulations Open
Substantial progress has been made recently in the generation of master-field ensembles.\nThis has to be paired with efficient techniques to compute observables on gauge field configurations with a large volume.\nHere we present the result…
View article: Photon and dilepton production rate in the quark-gluon plasma from lattice QCD
Photon and dilepton production rate in the quark-gluon plasma from lattice QCD Open
The photon emissivity of the quark-gluon plasma (QGP) is an important input to predict the photon yield in heavy-ion collisions, particularly for transverse momenta in the range of 1 to 2 GeV. Photon production in the QGP can be probed non…
View article: The hadronic running of the electromagnetic coupling and electroweak mixing angle
The hadronic running of the electromagnetic coupling and electroweak mixing angle Open
We present results for the hadronic running of the electromagnetic coupling and the weak mixing angle from simulations of lattice QCD with $N_f=2+1$ flavours of $O(a)$-improved Wilson fermions. Using two different discretisations of the ve…
View article: Translating topological benefits in very cold lattice simulations
Translating topological benefits in very cold lattice simulations Open
Master-field simulations offer an approach to lattice QCD in which calculations are performed on a small number of large-volume gauge-field configurations. The latter is advantageous for simulations in which the global topological charge i…
View article: A $(2+1)$-flavor lattice study of the pion quasiparticle in the thermal hadronic phase at physical quark masses
A $(2+1)$-flavor lattice study of the pion quasiparticle in the thermal hadronic phase at physical quark masses Open
We investigate the properties of the pion quasiparticle in the thermal hadronic phase of (2 + 1)-flavor QCD on the lattice at physical quark masses at a temperature T = 128 MeV. We find that the pion quasiparticle mass ω0 = 113(3) MeV is s…
View article: Translating topological benefits in very cold lattice simulations
Translating topological benefits in very cold lattice simulations Open
Master-field simulations offer an approach to lattice QCD in which calculations are performed on a small number of large-volume gauge-field configurations. The latter is advantageous for simulations in which the global topological charge i…
View article: The hadronic running of the electroweak couplings from lattice QCD
The hadronic running of the electroweak couplings from lattice QCD Open
The energy dependency (running) of the strength of electromagnetic interactions $\alpha$ plays an important role in precision tests of the Standard Model. The running of the former to the $Z$ pole is an input quantity for global electrowea…
View article: Estimation of the photon production rate using imaginary momentum correlators
Estimation of the photon production rate using imaginary momentum correlators Open
The thermal photon emission rate is determined by the spatially transverse, in-medium spectral function of the electromagnetic current. Accessing the spectral function using Euclidean data is, however, a challenging problem due to the ill-…
View article: The hadronic running of the electromagnetic coupling and electroweak mixing angle
The hadronic running of the electromagnetic coupling and electroweak mixing angle Open
We present results for the hadronic running of the electromagnetic coupling and the weak mixing angle from simulations of lattice QCD with $N_f=2+1$ flavours of $O(a)$-improved Wilson fermions. Using two different discretisations of the ve…
View article: Intermediate window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from O$(a)$ improved Wilson quarks
Intermediate window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from O$(a)$ improved Wilson quarks Open
Following the publication of the new measurement of the anomalous magnetic moment of the muon, the discrepancy between experiment and the theory prediction from the $g-2$ theory initiative has increased to $4.2\,σ$. Recent lattice QCD calc…
View article: Aspects of chiral symmetry in QCD at T = 128 MeV
Aspects of chiral symmetry in QCD at T = 128 MeV Open
We investigate several aspects of chiral symmetry in QCD at a temperature of $T = 128\,\text{MeV}$. The study is based on a $24\times 96^3$ lattice-QCD ensemble with O($a$)-improved Wilson quarks and physical up, down and strange quark mas…
View article: Photon emissivity of the quark-gluon plasma: A lattice QCD analysis of the transverse channel
Photon emissivity of the quark-gluon plasma: A lattice QCD analysis of the transverse channel Open
We present results for the thermal photon emissivity of the quark-gluon plasma derived from spatially transverse vector correlators computed in lattice QCD at a temperature of 250 MeV. The analysis of the spectral functions, performed at f…
View article: Style-based quantum generative adversarial networks for Monte Carlo events
Style-based quantum generative adversarial networks for Monte Carlo events Open
We propose and assess an alternative quantum generator architecture in the context of generative adversarial learning for Monte Carlo event generation, used to simulate particle physics processes at the Large Hadron Collider (LHC). We vali…
View article: Window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD
Window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD Open
Euclidean time windows in the integral representation of the hadronic vacuum polarization contribution to the muon $g-2$ serve to test the consistency of lattice calculations and may help in tracing the origins of a potential tension betwe…