Bethe-Salpeter wave functions of ηc(2S) and ψ(2S) states from full lattice QCDWe discuss the internal structure of radially excited charmonium mesons based on the equal-time and Coulomb gauge Bethe-Salpeter (BS) amplitudes, which are obtained in lattice QCD. Our simulations…Kazuki Nochi, Taichi Kawanai, Shoichi Sasaki·Aug 8, 2016SaveLearn
Fermion number anomaly with the fluffy mirror fermionQuite recently, Grabowska and Kaplan presented a 4-dimensional lattice formulation of chiral gauge theories based on the chiral overlap operator. We study this formulation from the perspective of the…Ken-ichi Okumura, Hiroshi Suzuki·Aug 7, 2016SaveLearn
Supergravity from Gauge TheoryGauge/gravity duality is the conjecture that string theories have dual descriptions as gauge theories. Weakly-coupled gravity is dual to strongly-coupled gauge theories, ideal for lattice…Evan Berkowitz·Aug 5, 2016SaveLearn
Systematic study of the completeness of two-dimensional classical ϕ4 theoryThe completeness of some classical statistical mechanical (SM) models is a recent result that has been developed by quantum formalism for the partition functions. In this paper, we consider a 2D…Mohammad Hossein Zarei, Yahya Khalili·Aug 3, 2016SaveLearn
Lattice Field Theory Study of Magnetic Catalysis in GrapheneWe discuss the simulation of the low-energy effective field theory (EFT) for graphene in the presence of an external magnetic field. Our fully nonperturbative calculation uses methods of lattice…Carleton DeTar, Christopher Winterowd, Savvas Zafeiropoulos·Aug 2, 2016SaveLearn
Lattice calculation of the pion transition form factor π0 γ* γ*We calculate the π0 γ*γ* transition form factor Fπ0γ*γ*(q12,q22) in lattice QCD with two flavors of quarks. Our main motivation is to provide the input to calculate the…Antoine Gérardin, Harvey B. Meyer, Andreas Nyffeler·Jul 27, 2016SaveLearn
Doubled Lattice Chern-Simons-Yang-Mills Theories with Discrete Gauge GroupWe construct doubled lattice Chern-Simons-Yang-Mills theories with discrete gauge group G in the Hamiltonian formulation. Here, these theories are considered on a square spatial lattice and the…Stephan Caspar, David Mesterházy, Therkel Z. Olesen et al.·Jul 27, 2016SaveLearn
Magnetic field effects on the static quark potential at zero and finite temperatureWe investigate the static QQ potential at zero and finite temperature in the presence of a constant and uniform external magnetic field B, for several values of the lattice spacing…Claudio Bonati, Massimo D'Elia, Marco Mariti et al.·Jul 27, 2016SaveLearn
Strong dynamics, composite Higgs and the conformal windowWe review recent progress in the lattice investigations of near-conformal non-abelian gauge theories relevant for dynamical symmetry breaking and model building of composite Higgs models. The…Daniel Nogradi, Agostino Patella·Jul 26, 2016SaveLearn
Developing and testing the density of states FFA method in the SU(3) spin modelThe Density of States Functional Fit Approach (DoS FFA) is a recently proposed modern density of states technique suitable for calculations in lattice field theories with a complex action problem. In…Mario Giuliani, Christof Gattringer, Pascal Törek·Jul 25, 2016SaveLearn
Coupled-Channel Dπ, Dη and DsK Scattering from Lattice QCDWe present the first lattice QCD study of coupled-channel Dπ, Dη and DsK scattering in isospin-1/2 in three partial waves. Using distillation, we compute matrices of correlation…Graham Moir, Michael Peardon, Sinéad M. Ryan et al.·Jul 24, 2016SaveLearn
Non-perturbative determination of improvement coefficients using coordinate space correlators in Nf=2+1 lattice QCDWe determine quark mass dependent order a improvement terms of the form bJam for non-singlet scalar, pseudoscalar, vector and axialvector currents using correlators in coordinate space on a set…Piotr Korcyl, Gunnar S. Bali·Jul 24, 2016SaveLearn
Lattice operators for scattering of particles with spinWe construct operators for simulating the scattering of two hadrons with spin on the lattice. Three methods are shown to give the consistent operators for PN, PV, VN and NN scattering, where P, V and…S. Prelovsek, U. Skerbis, C. B. Lang·Jul 22, 2016SaveLearn
SU(2) Gauge Theory with Two Fundamental Flavours: Scalar and Pseudoscalar SpectrumWe investigate the scalar and pseudoscalar spectrum of the SU(2) gauge theory with Nf=2 flavours of fermions in the fundamental representation using non perturbative lattice simulations. We…Rudy Arthur, Vincent Drach, Ari Hietanen et al.·Jul 22, 2016SaveLearn
Mirage in Temporal Correlation functions for Baryon-Baryon Interactions in Lattice QCDSingle state saturation of the temporal correlation function is a key condition to extract physical observables such as energies and matrix elements of hadrons from lattice QCD simulations. A method…Takumi Iritani, Takumi Doi, Sinya Aoki et al.·Jul 21, 2016SaveLearn
θ dependence of 4D SU(N) gauge theories in the large-N limitWe study the large-N scaling behavior of the θ dependence of the ground-state energy density E(θ) of four-dimensional (4D) SU(N) gauge theories and two-dimensional (2D) CPN-1 models,…Claudio Bonati, Massimo D'Elia, Paolo Rossi et al.·Jul 21, 2016SaveLearn
Slow running of the Gradient Flow coupling from 200 MeV to 4 GeV in N f=3 QCDUsing a finite volume Gradient Flow (GF) renormalization scheme with Schrödinger Functional (SF) boundary conditions, we compute the non-perturbative running coupling in the range $2.2 …Mattia Dalla Brida, Patrick Fritzsch, Tomasz Korzec et al.·Jul 21, 2016SaveLearn
Fate of the conformal fixed point with twelve massless fermions and SU(3) gauge groupWe report new results on the conformal properties of an important strongly coupled gauge theory, a building block of composite Higgs models beyond the Standard Model. With twelve massless fermions in…Zoltan Fodor, Kieran Holland, Julius Kuti et al.·Jul 20, 2016SaveLearn
Predicting the singlet vector channel in a partially Higgsed gauge theoryWe study a toy version of a grand-unified theory on the lattice: An SU(3) gauge theory, which experiences a Brout-Englert-Higgs effect due to a single Higgs field in the fundamental representation.…A. Maas, P. Törek·Jul 20, 2016SaveLearn
The topological susceptibility in the large-N limit of SU(N) Yang-Mills theoryWe compute the topological susceptibility of the SU(N) Yang-Mills theory in the large-N limit with a percent level accuracy. This is achieved by measuring the gradient-flow definition of the…Marco Cè, Miguel García Vera, Leonardo Giusti et al.·Jul 20, 2016SaveLearn
Complex Langevin in Lattice QCD: dynamic stabilisation and the phase diagramComplex Langevin simulations provide an alternative to sample path integrals with complex weights and therefore are suited to determine the phase diagram of QCD from first principles. We use our…Gert Aarts, Felipe Attanasio, Benjamin Jäger et al.·Jul 19, 2016SaveLearn
Analytical studies of the complex Langevin equation with a Gaussian Ansatz and multiple solutions in the unstable regionWe investigate a simple model using the numerical simulation in the complex Langevin equation (CLE) and the analytical approximation with the Gaussian Ansatz. We find that the Gaussian Ansatz…Yuya Abe, Kenji Fukushima·Jul 19, 2016SaveLearn
Lattice Prediction for Deeply Bound Doubly Heavy TetraquarksWe investigate the possibility of qq b b tetraquark bound states using nf=2+1 lattice QCD ensembles with pion masses 164, 299, and 415 MeV. Motivated by…Anthony Francis, Renwick J. Hudspith, Randy Lewis et al.·Jul 18, 2016SaveLearn
Finite Temperature Lattice QCD - Baryons in the Quark-Gluon PlasmaBaryonic correlation functions provide an ideal tool to study parity doubling and chiral symmetry using lattice simulations. We present a study using 2+1 flavors of anisotropic Wilson clover…Gert Aarts, Chris Allton, Davide De Boni et al.·Jul 18, 2016SaveLearn
Exact Lattice Supersymmetry at the Quantum Level for N=2 Wess-Zumino Models in 1- and 2-DimensionsSupersymmetric lattice Ward-Takahashi identities are investigated perturbatively up to two-loop corrections for super doubler approach of N=2 lattice Wess-Zumino models in 1- and 2-dimensions. In…Keisuke Asaka, Alessandro D'Adda, Noboru Kawamoto et al.·Jul 15, 2016SaveLearn