First Lattice QCD determination of semileptonic decays of charmed-strange baryons cWhile the standard model is the most successfully theory to describe all interactions and constituents in elementary particle physics, it has been constantly examined for over four decades. Weak…Qi-An Zhang, Jun Hua, Fei Huang et al.·Mar 12, 2021SaveLearn
The de Sitter Instanton from Euclidean Dynamical TriangulationsWe study the emergence of de Sitter space in Euclidean dynamical triangulations (EDT). Working within the semi-classical approximation, it is possible to relate the lattice parameters entering the…Scott Bassler, Jack Laiho, Marc Schiffer et al.·Mar 11, 2021SaveLearn
Real-time quantum calculations of phase shifts using wave packet time delaysWe present a method to extract the phase shift of a scattering process using the real-time evolution in the early and intermediate stages of the collision in order to estimate the time delay of a…Erik Gustafson, Yingyue Zhu, Patrick Dreher et al.·Mar 11, 2021SaveLearn
Monte Carlo evaluation of the continuum limit of the two-point function of the Euclidean free real scalar field subject to affine quantizationWe study canonical and affine versions of the quantized covariant Euclidean free real scalar field-theory on four dimensional lattices through the Monte Carlo method. We calculate the two-point…Riccardo Fantoni, John R. Klauder·Mar 11, 2021SaveLearn
Spectral sum of current correlators from lattice QCDWe propose a method to use lattice QCD to compute the Borel transform of the vacuum polarization function appearing in the Shifman-Vainshtein-Zakharov QCD sum rule. We construct the spectral sum…Tsutomu Ishikawa, Shoji Hashimoto·Mar 11, 2021SaveLearn
Role of axial U(1) anomaly in chiral susceptibility of QCD at high temperatureThe chiral susceptibility, or the first derivative of the chiral condensate with respect to the quark mass, is often used as a probe for the QCD phase transition since the chiral condensate is an…S. Aoki, Y. Aoki, H. Fukaya et al.·Mar 10, 2021SaveLearn
Unusual Features of QCD Low-Energy Modes in IR PhaseIt was recently proposed that there is a phase in thermal QCD (IR phase) at temperatures well above the chiral crossover, featuring elements of scale invariance in the infrared (IR). Here we study…Andrei Alexandru, Ivan Horváth·Mar 9, 2021SaveLearn
Precision Nucleon Charges and Form Factors Using 2+1-flavor Lattice QCDWe present high statistics results for the isovector nucleon charges and form factors using seven ensembles of 2+1-flavor Wilson-clover fermions. The axial and pseudoscalar form factors obtained on…Sungwoo Park, Rajan Gupta, Boram Yoon et al.·Mar 9, 2021SaveLearn
Comparison of Domain Wall Fermion Multigrid MethodsWe present a detailed comparison of several recent and new approaches to multigrid solver algorithms suitable for the solution of 5d chiral fermion actions such as Domain Wall fermions in the Shamir…Peter Boyle, Azusa Yamaguchi·Mar 8, 2021SaveLearn
Self-Renormalization of Quasi-Light-Front Correlators on the LatticeIn applying large-momentum effective theory, renormalization of the Euclidean correlators in lattice regularization is a challenge due to linear divergences in the self-energy of Wilson lines. Based…Yi-Kai Huo, Yushan Su, Long-Cheng Gui et al.·Mar 4, 2021SaveLearn
Quark-gluon vertex from Nf=2 lattice QCDWe study the quark-gluon vertex in the limit of vanishing gluon momentum using lattice QCD with 2 flavors of O(a) improved Wilson fermions, for several lattice spacings and quark masses. We find that…Ayşe Kızılersü, Orlando Oliveira, Paulo J. Silva et al.·Mar 4, 2021SaveLearn
Real-time lattice gauge theory actions: unitarity, convergence, and path integral contour deformationsThe Wilson action for Euclidean lattice gauge theory defines a positive-definite transfer matrix that corresponds to a unitary lattice gauge theory time-evolution operator if analytically continued…Gurtej Kanwar, Michael L. Wagman·Mar 3, 2021SaveLearn
Multicanonical reweighting for the QCD topological susceptibilityWe introduce a reweighting technique which allows for a continuous sampling of temperatures in a single simulation and employ it to compute the temperature dependence of the QCD topological…P. Thomas Jahn, Parikshit M. Junnarkar, Guy D. Moore et al.·Mar 1, 2021SaveLearn
Weakly bound H dibaryon from SU(3)-flavor-symmetric QCDWe present the first study of baryon-baryon interactions in the continuum limit of lattice QCD, finding unexpectedly large lattice artifacts. Specifically, we determine the binding energy of the H…Jeremy R. Green, Andrew D. Hanlon, Parikshit M. Junnarkar et al.·Mar 1, 2021SaveLearn
Multi-particle systems on the lattice and chiral extrapolations: a brief reviewThe extraction of two- and three-body hadronic scattering amplitudes and the properties of the low-lying hadronic resonances from the finite-volume energy levels in lattice QCD represents a rapidly…Maxim Mai, Michael Döring, Akaki Rusetsky·Feb 28, 2021SaveLearn
Overview of external electromagnetism and rotation in lattice QCDThis is an introductory review of lattice QCD with external fields. The study of external magnetic fields is one of the greatest achievements in modern lattice QCD. Large-scale simulations and…Arata Yamamoto·Feb 27, 2021SaveLearn
ZN symmetry in SU(N) gauge theoriesWe study ZN symmetry in SU(N) gauge theories in the presence of matter fields in the fundamental representation, by restricting the lattice partition function integration to matter fields which…Minati Biswal, Sanatan Digal, Vinod Mamale et al.·Feb 25, 2021SaveLearn
Lattice QCD calculation of the electroweak box diagrams for the kaon semileptonic decaysWe present a lattice QCD calculation of the axial γ W-box diagrams relevant for the kaon semileptonic decays. We utilize a recently proposed method, which connects the electroweak radiative…Peng-Xiang Ma, Xu Feng, Mikhail Gorchtein et al.·Feb 24, 2021SaveLearn
Transition in the spectral gap of the massless overlap Dirac operator coupled to abelian fields in three dimensionsThe low lying spectrum of the massless overlap Dirac operator coupled to abelian fields in three dimensions with three different measures are shown to exhibit two phases: a strong coupling gapped…Rajamani Narayanan·Feb 22, 2021SaveLearn
Confinement-Deconfinement transition and Z2 symmetry in Z2+Higgs theoryWe study the Polyakov loop and the Z2 symmetry in the lattice Z2+Higgs theory in 4D Euclidean space using Monte Carlo simulations. The results show that this symmetry is realised in the Higgs…Minati Biswal, Sanatan Digal, Vinod Mamale et al.·Feb 22, 2021SaveLearn
Screening masses towards chiral limitA possible effective restoration of the anomalous UA(1) symmetry would have a non-trivial effect on the global phase diagram of QCD. In this work we investigate the effective restoration of the…Simon Dentinger, Olaf Kaczmarek, Anirban Lahiri·Feb 19, 2021SaveLearn
Determination of mb/mc and mb from nf=4 lattice QCD+QEDWe extend HPQCD's earlier nf=4 lattice-QCD analysis of the ratio of MSB masses of the b and c quark to include results from finer lattices (down to 0.03fm) and a new…D. Hatton, C. T. H. Davies, J. Koponen et al.·Feb 18, 2021SaveLearn
Quantum field-theoretic machine learningWe derive machine learning algorithms from discretized Euclidean field theories, making inference and learning possible within dynamics described by quantum field theory. Specifically, we demonstrate…Dimitrios Bachtis, Gert Aarts, Biagio Lucini·Feb 18, 2021SaveLearn
Peeking into the θ vacuumWe propose a subvolume method to study the θ dependence of the free energy density of the four-dimensional SU(N) Yang-Mills theory on the lattice. As an attempt, the method is first applied…Ryuichiro Kitano, Ryutaro Matsudo, Norikazu Yamada et al.·Feb 17, 2021SaveLearn
Conserving Lattice Gauge Theory for Finite SystemsIn this study I develop a novel action for lattice gauge theory for finite systems, which accommodates non-periodic boundary conditions, implements the proper integral form of Gauss' law and exhibits…Alexander Rothkopf·Feb 17, 2021SaveLearn