Lorentz symmetry violation in the fermion number anomaly with the chiral overlap operatorRecently, Grabowska and Kaplan proposed a four-dimensional lattice formulation of chiral gauge theories on the basis of a chiral overlap operator. We compute the classical continuum limit of the…Hiroki Makino, Okuto Morikawa·Sep 27, 2016SaveLearn
Position-space approach to hadronic light-by-light scattering in the muon g-2 on the latticeThe anomalous magnetic moment of the muon currently exhibits a discrepancy of about three standard deviations between the experimental value and recent Standard Model predictions. The theoretical…Nils Asmussen, Jeremy Green, Harvey B. Meyer et al.·Sep 27, 2016SaveLearn
Nambu-Jona-Lasinio model with Wilson fermionsWe present a lattice study of a Nambu Jona-Lasinio (NJL) model using Wilson fermions. Four fermion interactions are a natural part of several extensions of the Standard Model, appearing as a low…Jarno Rantaharju, Vincent Drach, Claudio Pica et al.·Sep 26, 2016SaveLearn
Coulomb Artifacts and Bottomonium Hyperfine Splitting in Lattice NRQCDWe study the role of the lattice artifacts associated with the Coulomb binding effects in the analysis of the heavy quarkonium within lattice NRQCD. We find that a "naive" perturbative…Tao Liu, Alexander A. Penin, Ahmed Rayyan·Sep 22, 2016SaveLearn
Numerical study of tree-level improved lattice gradient flows in pure Yang-Mills theoryWe study several types of tree-level improvement in the Yang-Mills gradient flow method in order to reduce the lattice discretization errors in line with Fodor et al. [arXiv:1406.0827]. The…Norihiko Kamata, Shoichi Sasaki·Sep 22, 2016SaveLearn
Lines of Constant Physics in a Five-Dimensional Gauge-Higgs Unification ScenarioWe report on the progress in the study of a five-dimensional SU(2) Gauge-Higgs Unification model. In this non-perturbative study, the Higgs mechanism is triggered by the spontaneous breaking of a…Maurizio Alberti, Nikos Irges, Francesco Knechtli et al.·Sep 22, 2016SaveLearn
Induced QCD I: TheoryWe explore an alternative discretization of continuum SU(Nc) Yang-Mills theory on a Euclidean spacetime lattice, originally introduced by Budzcies and Zirnbauer. In this discretization the…Bastian B. Brandt, Robert Lohmayer, Tilo Wettig·Sep 21, 2016SaveLearn
Asymptotic behavior of large polygonal Wilson loops in confining gauge theoriesIn the framework of effective string theory (EST), the asymptotic behavior of a large Wilson loop in confining gauge theories can be expressed via Laplace determinant with Dirichlet boundary…P. V. Pobylitsa·Sep 19, 2016SaveLearn
The QCD deconfinement critical point for Nτ=8 with Nf=2 flavours of unimproved Wilson fermionsQCD at zero baryon density in the limit of infinite quark mass undergoes a first order deconfinement phase transition at a critical temperature Tc corresponding to the breaking of the global…Christopher Czaban, Owe Philipsen·Sep 19, 2016SaveLearn
Staggered domain wall fermionsWe construct domain wall fermions with a staggered kernel and investigate their spectral and chiral properties numerically in the Schwinger model. In some relevant cases we see an improvement of…Christian Hoelbling, Christian Zielinski·Sep 16, 2016SaveLearn
The A2 asymmetry and propagators in lattice SU(2) gluodynamics at T>TcWe study numerically the chromoelectric-chromomagnetic asymmetry of the dimension two A2 gluon condensate as well as the transverse and longitudinal gluon propagators at T>Tc in the…V. G. Bornyakov, V. K. Mitrjushkin, R. N. Rogalyov·Sep 16, 2016SaveLearn
The complex Langevin analysis of spontaneous symmetry breaking induced by complex fermion determinantIn many interesting physical systems, the determinant which appears from integrating out fermions becomes complex, and its phase plays a crucial role in the determination of the vacuum. An example of…Yuta Ito, Jun Nishimura·Sep 15, 2016SaveLearn
Applying the relativistic quantization condition to a three-particle bound state in a periodic boxUsing our recently developed relativistic three-particle quantization condition, we study the finite-volume energy shift of a spin-zero three-particle bound state. We reproduce the result obtained…Maxwell T. Hansen, Stephen R. Sharpe·Sep 14, 2016SaveLearn
Universal Distribution of Would-be Topological Zero Modes in Coupled Chiral SystemsWe consider two quenched, chiral ensembles which are coupled in such a way that a combined chiral symmetry is preserved. The coupling also links the topology of the two systems such that the number…Adam Mielke, K. Splittorff·Sep 14, 2016SaveLearn
Octet Baryon Magnetic Moments from Lattice QCD: Approaching Experiment from a Three-Flavor Symmetric PointLattice QCD calculations with background magnetic fields are used to determine the magnetic moments of the octet baryons. Computations are performed at the physical value of the strange quark mass,…Assumpta Parreno, Martin J. Savage, Brian C. Tiburzi et al.·Sep 13, 2016SaveLearn
SU(N) gauge theories in 2+1 dimensions: glueball spectra and k-string tensionsWe calculate the low-lying glueball spectrum and various string tensions in SU(N) lattice gauge theories in 2+1 dimensions, and extrapolate the results to the continuum limit. We do so for for the…Andreas Athenodorou, Michael Teper·Sep 13, 2016SaveLearn
Neutral Kaon Mixing Beyond the Standard Model with nf=2+1 Chiral Fermions Part 1: Bare Matrix Elements and Physical ResultsWe compute the hadronic matrix elements of the four-quark operators relevant for K0- K0 mixing beyond the Standard Model. Our results are from lattice QCD simulations with nf=2+1…Nicolas Garron, Renwick J. Hudspith, Andrew T. Lytle·Sep 12, 2016SaveLearn
Applying polynomial filtering to mass preconditioned Hybrid Monte CarloThe use of mass preconditioning or Hasenbusch filtering in modern Hybrid Monte Carlo simulations is common. At light quark masses, multiple filters (three or more) are typically used to reduce the…Taylor Haar, Waseem Kamleh, James Zanotti et al.·Sep 9, 2016SaveLearn
A local factorization of the fermion determinant in lattice QCDWe introduce a factorization of the fermion determinant in lattice QCD with Wilson-type fermions that leads to a bosonic action which is local in the block fields. The interaction among gauge fields…Marco Cè, Leonardo Giusti, Stefan Schaefer·Sep 8, 2016SaveLearn
A dilaton-pion mass relationRecently, Golterman and Shamir presented an effective field theory which is supposed to describe the low-energy physics of the pion and the dilaton in an SU(Nc) gauge theory with Nf Dirac…Aya Kasai, Ken-ichi Okumura, Hiroshi Suzuki·Sep 8, 2016SaveLearn
Casimir effect on the lattice: U(1) gauge theory in two spatial dimensionsWe propose a general numerical method to study the Casimir effect in lattice gauge theories. We illustrate the method by calculating the energy density of zero-point fluctuations around two parallel…M. N. Chernodub, V. A. Goy, A. V. Molochkov·Sep 8, 2016SaveLearn
Flavor structure of Λ baryons from lattice QCD: From strange to charm quarksWe study Λ baryons of spin-parity 12 with either a strange or charm valence quark in full 2+1 flavor lattice QCD. Multiple SU(3) singlet and octet operators are employed to…Philipp Gubler, Toru T. Takahashi, Makoto Oka·Sep 7, 2016SaveLearn
Practical quasi parton distribution functionsA completely new strategy to calculate parton distribution functions on the lattice has recently been proposed. In this method, lattice calculable observables, called quasi distributions, are related…Tomomi Ishikawa, Yan-Qing Ma, Jian-Wei Qiu et al.·Sep 7, 2016SaveLearn
Monte Carlo calculations of the finite density Thirring modelWe present results of the numerical simulation of the two-dimensional Thirring model at finite density and temperature. The severe sign problem is dealt with by deforming the domain of integration…Andrei Alexandru, Gokce Basar, Paulo F. Bedaque et al.·Sep 6, 2016SaveLearn
Connected, Disconnected and Strange Quark Contributions to HVPWe calculate all neutral vector two-point functions in Chiral Perturbation Theory (ChPT) to two-loop order and use these to estimate the ratio of disconnected to connected contributions as well as…Johan Bijnens, Johan Relefors·Sep 6, 2016SaveLearn