Continuum extrapolation of Ward identities in N=1 supersymmetric SU(3) Yang-Mills theoryIn N=1 supersymmetric Yang-Mills theory, regularised on a space-time lattice, in addition to the breaking by the gluino mass term, supersymmetry is broken explicitly by the lattice…Sajid Ali, Georg Bergner, Henning Gerber et al.·Mar 9, 2020SaveLearn
Consistency of hadronic vacuum polarization between lattice QCD and the R-ratioThere are emerging tensions for theory results of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment both within recent lattice QCD calculations and between some…Christoph Lehner, Aaron S. Meyer·Mar 9, 2020SaveLearn
Real-Time-Evolution of Heavy Quarks in the GlasmaWe introduce a novel real-time formulation of lattice NRQCD designed for simulations in the background of an highly occupied gluon field. By evolving quarks in the background of a dynamically…Alexander Lehmann, Alexander Rothkopf·Mar 5, 2020SaveLearn
Ising model as Wilson-Majorana FermionsWe show the equivalence of the 2D Ising model to standard free Euclidean lattice fermions of the Wilson Majorana type. The equality of the loop representations for the partition functions of both…Ulli Wolff·Mar 3, 2020SaveLearn
Towards Novel Insights in Lattice Field Theory with Explainable Machine LearningMachine learning has the potential to aid our understanding of phase structures in lattice quantum field theories through the statistical analysis of Monte Carlo samples. Available algorithms, in…Stefan Bluecher, Lukas Kades, Jan M. Pawlowski et al.·Mar 3, 2020SaveLearn
Thermal phase structure of a supersymmetric matrix modelWe present initial results from ongoing lattice investigations into the thermal phase structure of the Berenstein--Maldacena--Nastase deformation of maximally supersymmetric Yang--Mills quantum…David Schaich, Raghav G. Jha, Anosh Joseph·Mar 3, 2020SaveLearn
Constraints on charm-anticharm asymmetry in the nucleon from lattice QCDWe present the first lattice QCD calculation of the charm quark contribution to the nucleon electromagnetic form factors GcE,M(Q2) in the momentum transfer range 0≤ Q2 ≤ 1.4 $…Raza Sabbir Sufian, Tianbo Liu, Andrei Alexandru et al.·Mar 2, 2020SaveLearn
Bc Bs(d) form factors from lattice QCDWe present results of the first lattice QCD calculations of Bc Bs and Bc Bd weak matrix elements. Form factors across the entire physical q2 range are then extracted and…Laurence J. Cooper, Christine T. H. Davies, Judd Harrison et al.·Mar 2, 2020SaveLearn
Finite N unitary matrix modelWe consider one-plaquette unitary matrix model at finite N using exact expression of the partition function for both SU(N) and U(N) groups.Raghav G. Jha·Feb 29, 2020SaveLearn
Effects of Dense Quark Matter on Gluon Propagators in Lattice QC2DThe transverse and longitudinal gluon propagators in the Landau gauge are studied in the two-color lattice QCD at nonzero quark chemical potential μq. Parameterization of the momentum dependence…V. G. Bornyakov, V. V. Braguta, A. A. Nikolaev et al.·Feb 29, 2020SaveLearn
Leading hadronic contribution to the muon magnetic moment from lattice QCDWe compute the leading order hadronic vacuum polarization (LO-HVP) contribution to the anomalous magnetic moment of the muon, (gμ-2), using lattice QCD. Calculations are performed with four…Sz. Borsanyi, Z. Fodor, J. N. Guenther et al.·Feb 27, 2020SaveLearn
Parton distribution functions of Δ+ on the latticeWe perform a first calculation for the unpolarized parton distribution function of the Δ+ baryon using lattice QCD simulations within the framework of Large Momentum Effective Theory. Two…Yahui Chai, Yuan Li, Shicheng Xia et al.·Feb 27, 2020SaveLearn
New developments in lattice QCD on equilibrium physics and phase diagramI review recent new lattice QCD results on a few selected topics which are relevant to the heavy ion physics community. Special emphasis is put on the QCD phase diagram towards the chiral limit and…Heng-Tong Ding·Feb 27, 2020SaveLearn
Lattice Gauge Theory for a Quantum ComputerThe quantum link~Brower:1997ha Hamiltonian was introduced two decades ago as an alternative to Wilson's Euclidean lattice QCD with gauge fields represented by bi-linear…Richard C. Brower, David Berenstein, Hiroki Kawai·Feb 24, 2020SaveLearn
Improvement, generalization, and scheme conversion of Wilson-line operators on the lattice in the auxiliary field approachNonlocal quark bilinear operators connected by link paths are used for studying parton distribution functions (PDFs) and transverse momentum-dependent PDFs of hadrons using lattice QCD. The…Jeremy R. Green, Karl Jansen, Fernanda Steffens·Feb 21, 2020SaveLearn
Multi-π+ systems in finite volumeWe present a formalism to describe two-π+ and three-π+ dynamics in finite volume, the formalism is based on combination of a variational approach and the Faddeev method. Both pair-wise and…Peng Guo, Bingwei Long·Feb 21, 2020SaveLearn
Lattice QCD Impact on Determination of CKM Matrix: Status and ProspectsLattice QCD is an important tool for theoretical input for flavor physics. There have been four reviews by the Flavour Lattice Averaging Group (FLAG). This talk will review the current status of the…Steven Gottlieb·Feb 20, 2020SaveLearn
A composite massless vector bosonIn a non-perturbative gauge-invariant formulation of grand-unified theories all low energy vector states need to be composite with respect to the high-scale gauge group, including the photon. We…Vincenzo Afferrante, Axel Maas, Pascal Törek·Feb 19, 2020SaveLearn
Magnetic polarisability of the nucleon using a Laplacian mode projectionConventional hadron interpolating fields, which utilise gauge-covariant Gaussian smearing, are ineffective in isolating ground state nucleons in a uniform background magnetic field. There is evidence…Ryan Bignell, Waseem Kamleh, Derek Leinweber·Feb 18, 2020SaveLearn
Ruling Out the Massless Up-Quark Solution to the Strong CP Problem by Computing the Topological Mass Contribution with Lattice QCDThe infamous strong CP problem in particle physics can in principle be solved by a massless up quark. In particular, it was hypothesized that topological effects could substantially contribute to the…Constantia Alexandrou, Jacob Finkenrath, Lena Funcke et al.·Feb 18, 2020SaveLearn
Strings of diquark-quark (QQ)Q baryon before phase transitionWe explore the limit at which the effective baryonic Y-string model of the junction approaches the mesonic stringlike behavior. We calculate and compare the numerical values of the static potential…A. S. Bakry, M. A. Deliyergiyev, A. A. Galal et al.·Feb 17, 2020SaveLearn
Model-independent determination of the nucleon charge radius from lattice QCDLattice QCD calculations of nucleon form factors are restricted to discrete values of the Euclidean four-momentum transfer. Therefore, the extraction of radii typically relies on parametrizing and…Constantia Alexandrou, Kyriakos Hadjiyiannakou, Giannis Koutsou et al.·Feb 17, 2020SaveLearn
Non-perturbative definition of the QCD energy-momentum tensor on the latticeWe present a strategy to define non-perturbatively the energy-momentum tensor in Quantum Chromodynamics (QCD) which satisfies the appropriate Ward identities and has the right trace anomaly. The…Mattia Dalla Brida, Leonardo Giusti, Michele Pepe·Feb 17, 2020SaveLearn
The nucleon isovector tensor charge from lattice QCD using chiral fermionsIn this work we present the isovector flavor combination for the nucleon tensor charge extracted from lattice QCD simulations using overlap fermions on Nf=2+1 domain-wall configurations. The pion…Derek Horkel, Yujiang Bi, Martha Constantinou et al.·Feb 16, 2020SaveLearn
Avoiding the sign-problem in lattice field theoryIn lattice field theory, the interactions of elementary particles can be computed via high-dimensional integrals. Markov-chain Monte Carlo (MCMC) methods based on importance sampling are normally…Tobias Hartung, Karl Jansen, Hernan Leövey et al.·Feb 15, 2020SaveLearn