The analytic structure of the Landau gauge quark propagator from Pad\'e analysisThe analytic structure of the 2 flavour full QCD lattice Landau gauge quark propagator is investigated with Pad\'e approximants applied to its vector and scalar form factors. No poles at complex…Alexandre F. Falcão, Orlando Oliveira·Sep 29, 2022SaveLearn
Open charm mesons at nonzero temperature: results in the hadronic phase from lattice QCDWe study what happens to D and Ds mesons as the temperature increases, using lattice QCD simulations with Nf=2+1 dynamical flavours on anistropic lattices. We have access to five temperatures in…Gert Aarts, Chris Allton, Ryan Bignell et al.·Sep 29, 2022SaveLearn
Weak universality induced by Q= 2e charges at the deconfinement transition of a (2+1)-d U(1) lattice gauge theoryMatter-free lattice gauge theories (LGTs) provide an ideal setting to understand confinement to deconfinement transitions at finite temperatures, which is typically due to the spontaneous breakdown…Indrajit Sau, Arnab Sen, Debasish Banerjee·Sep 29, 2022SaveLearn
pyerrors: a python framework for error analysis of Monte Carlo dataWe present the pyerrors python package for statistical error analysis of Monte Carlo data. Linear error propagation using automatic differentiation in an object oriented framework is combined with…Fabian Joswig, Simon Kuberski, Justus T. Kuhlmann et al.·Sep 28, 2022SaveLearn
Gradient flow step-scaling function for SU(3) with Nf = 6 or 4 fundamental flavorsNonperturbative determinations of the renormalization group (RG) β function are crucial to understand properties of gauge-fermion systems at strong coupling and connect lattice simulations and…Anna Hasenfratz, Claudio Rebbi, Oliver Witzel·Sep 28, 2022SaveLearn
Determination of αs(mZ) by the non-perturbative decoupling methodWe present the details and first results of a new strategy for the determination of αs(mZ). By simultaneously decoupling 3 fictitious heavy quarks we establish a relation between the…Mattia Dalla Brida, Roman Höllwieser, Francesco Knechtli et al.·Sep 28, 2022SaveLearn
On fits to correlated and auto-correlated dataObservables in particle physics and specifically in lattice QCD calculations are often extracted from fits. Standard 2 tests require a reliable determination of the covariance matrix and its…Mattia Bruno, Rainer Sommer·Sep 28, 2022SaveLearn
Nonperturbative renormalization of the supercurrent in N = 1 Supersymmetric Yang-Mills TheoryIn this work, we study the nonperturbative renormalization of the supercurrent operator in N = 1 Supersymmetric Yang-Mills (SYM) theory, using a gauge-invariant renormalization scheme…Georg Bergner, Marios Costa, Haralambos Panagopoulos et al.·Sep 28, 2022SaveLearn
First results on QCD+QED with C* boundary conditionsAccounting for isospin-breaking corrections is critical for achieving subpercent precision in lattice computations of hadronic observables. A way to include QED and strong-isospin-breaking…Lucius Bushnaq, Isabel Campos, Marco Catillo et al.·Sep 27, 2022SaveLearn
Lattice regularizations of θ vacua: Anomalies and qubit modelsAnomalies are a powerful way to gain insight into possible lattice regularizations of a quantum field theory. In this work, we argue that the continuum anomaly for a given symmetry can be matched by…Mendel Nguyen, Hersh Singh·Sep 26, 2022SaveLearn
Determination of Lattice QCD Equation of state at a finite chemical potentialExponential resummation to all orders in μB is a promising scheme which can capture contributions to all orders in μB by considering only the first few Taylor coefficients in the Taylor…Sabarnya Mitra·Sep 24, 2022SaveLearn
Report of the Snowmass 2021 Topical Group on Lattice Gauge TheoryLattice gauge theory continues to be a powerful theoretical and computational approach to simulating strongly interacting quantum field theories, whose applications permeate almost all disciplines of…Zohreh Davoudi, Ethan T. Neil, Christian W. Bauer et al.·Sep 22, 2022SaveLearn
Complex Langevin study of spontaneous symmetry breaking in IKKT matrix modelThe IKKT matrix model, in the large-N limit, is conjectured to be a non-perturbative definition of the ten-dimensional type IIB superstring theory. In this work, we investigate the possibility of…Arpith Kumar, Anosh Joseph, Piyush Kumar·Sep 21, 2022SaveLearn
Chiral spin symmetry and hot/dense QCDAbove the chiral symmetry restoration crossover around Tch ~ 155 MeV a new regime arises in QCD, a stringy fluid, which is characterized by an approximate chiral spin symmetry of the thermal…L. Ya. Glozman·Sep 21, 2022SaveLearn
Large-Momentum Effective Theory vs. Short-Distance Operator Expansion: Contrast and ComplementarityAlthough equivalent in the infinite-momentum limit, large-momentum effective theory (LaMET) and short-distance operator product expansion (SD-OPE) are two different approaches to extract parton…Xiangdong Ji·Sep 19, 2022SaveLearn
Perturbative computation in a QED3-inspired conformal abelian gauge model on the latticeWe perform perturbative computations in a lattice gauge theory with a conformal measure that is quadratic in a non-compact abelian gauge field and is nonlocal, as inspired by the induced gauge action…Nikhil Karthik, Matthew Klein, Rajamani Narayanan·Sep 16, 2022SaveLearn
Lattice Quantum Gravity: EDT and CDTThis article is an overview of the use of so-called Euclidean Dynamical Triangulations (EDT) and Causal Dynamical Triangulations (CDT) as lattice regularizations of quantum gravity. The lattice…Jan Ambjorn·Sep 14, 2022SaveLearn
Generalized Parton Distributions from Lattice QCD with Asymmetric Momentum Transfer: Unpolarized QuarksTraditionally, lattice QCD computations of generalized parton distributions (GPDs) have been carried out in a symmetric frame, where the transferred momentum is symmetrically distributed between the…Shohini Bhattacharya, Krzysztof Cichy, Martha Constantinou et al.·Sep 12, 2022SaveLearn
Electromagnetic Structure of Spin-12 Doubly Charmed Baryons in Lattice QCDWe compute the electromagnetic properties of spin-12 doubly charmed baryons on 2+1 flavor lattices that have a pion mass of 156 MeV. The Tsukuba action is employed for the charm quark…H. Bahtiyar·Sep 12, 2022SaveLearn
Detecting critical points from Lee-Yang edge singularities in lattice QCDA new approach is presented to explore the singularity structure of lattice QCD in the complex chemical potential plane. Our method can be seen as a combination of the Taylor expansion and analytic…Christian Schmidt, David A. Clarke, Petros Dimopoulos et al.·Sep 9, 2022SaveLearn
Moments and power corrections of longitudinal and transverse proton structure functions from lattice QCDWe present a simultaneous extraction of the moments of F2 and FL structure functions of the proton for a range of photon virtuality, Q2. This is achieved by computing the forward Compton…M. Batelaan, K. U. Can, A. Hannaford-Gunn et al.·Sep 9, 2022SaveLearn
't Hooft anomalies for staggered fermionsWe show that the phase structure of certain staggered fermion theories can be understood on the basis of exact anomalies. These anomalies arise when staggered fermions are coupled to gravity which…Simon Catterall·Sep 8, 2022SaveLearn
Forward light-by-light scattering and electromagnetic correction to hadronic vacuum polarizationLattice QCD calculations of the hadronic vacuum polarization (HVP) have reached a precision where the electromagnetic (e.m.) correction can no longer be neglected. This correction is both…Volodymyr Biloshytskyi, En-Hung Chao, Antoine Gérardin et al.·Sep 5, 2022SaveLearn
The static energy of a quark-antiquark pair from Laplacian eigenmodesWe test a method for computing the static quark-antiquark potential in lattice QCD, which is not based on Wilson loops, but where the trial states are formed by eigenvector components of the…Roman Höllwieser, Francesco Knechtli, Mike Peardon·Sep 2, 2022SaveLearn
Strategies for quantum-optimized construction of interpolating operators in classical simulations of lattice quantum field theoriesIt has recently been argued that noisy intermediate-scale quantum computers may be used to optimize interpolating operator constructions for lattice quantum field theory (LQFT) calculations on…A. Avkhadiev, P. E. Shanahan, R. D. Young·Sep 2, 2022SaveLearn