Complex heavy-quark potential and Debye mass in a gluonic medium from lattice QCDWe improve and extend our study of the complex in-medium heavy quark potential and its Debye mass mD in a gluonic medium with a finer scan around the deconfinement transition and newly generated…Yannis Burnier, Alexander Rothkopf·Jul 14, 2016SaveLearn
Bilinear condensate in three-dimensional large-Nc QCDWe find clear numerical evidence for a bilinear condensate in three-dimensional QCD in the 't Hooft limit. We use a non-chiral random matrix model to extract the value of the condensate Σ from…Nikhil Karthik, Rajamani Narayanan·Jul 13, 2016SaveLearn
Further Evidence For Zero Crossing On The Three Gluon VertexThe three gluon one particle irreducible function is investigated using lattice QCD simulations over a large region of momentum in the Landau gauge for four dimensional pure Yang-Mills equations and…Anthony G. Duarte, Orlando Oliveira, Paulo J. Silva·Jul 13, 2016SaveLearn
Bsπ+ scattering and search for X(5568) with lattice QCDWe investigate Bsπ+ scattering in s-wave using lattice QCD in order to search for an exotic resonance X(5568) with flavor b s d u; such a state was recently reported by D0 but was not…C. B. Lang, D. Mohler, S. Prelovsek·Jul 11, 2016SaveLearn
Magnetic Catalysis in Graphene Effective Field TheoryWe report on the first observation of magnetic catalysis at zero temperature in a fully nonperturbative simulation of the graphene effective field theory. Using lattice gauge theory, a…Carleton DeTar, Christopher Winterowd, Savvas Zafeiropoulos·Jul 11, 2016SaveLearn
One spatial dimensional finite volume three-body interaction for a short-range potentialIn this work, we use McGuire's model to describe scattering of three spinless identical particles in one spatial dimension, we first present analytic solutions of Faddeev's equation for…Peng Guo·Jul 11, 2016SaveLearn
The two-dimensional O(3) model at nonzero density: from dual lattice simulations to repulsive bosonsWe discuss the thermodynamics of the O(3) nonlinear sigma model in 1+1 dimensions at nonzero chemical potential (equivalent to a magnetic field). In its conventional field theory representation the…Falk Bruckmann, Christof Gattringer, Thomas Kloiber et al.·Jul 8, 2016SaveLearn
The QCD equation of state at finite density from analytical continuationWe determine the equation of state of QCD at finite chemical potential, to order (μB/T)6, for a system of 2+1 quark flavors. The simulations are performed at the physical mass for the light and…J. Gunther, R. Bellwied, S. Borsanyi et al.·Jul 8, 2016SaveLearn
Progress and prospects for heavy flavour physics on the latticeI review recent progress in lattice computations relevant for B- and charm physics, focusing on decay and mixing amplitudes with a direct impact on CKM analysis. Emphasis is put on the interplay…Carlos Pena·Jul 5, 2016SaveLearn
Stochastic calculation of the Dirac spectrum on the lattice and a determination of chiral condensate in 2+1-flavor QCDWe compute the chiral condensate in 2+1-flavor QCD through the spectrum of low-lying eigenmodes of Dirac operator. The number of eigenvalues of the Dirac operator is evaluated using a stochastic…Guido Cossu, Hidenori Fukaya, Shoji Hashimoto et al.·Jul 5, 2016SaveLearn
Recent progress in lattice supersymmetry: from lattice gauge theory to black holesSupersymmetry (SUSY) is a fascinating topic in theoretical physics, because of its unique and counterintuitive properties. It is expected to emerge as new physics beyond the standard model, and it is…Daisuke Kadoh·Jul 5, 2016SaveLearn
Pseudoscalar mesons in a finite cubic volume with twisted boundary conditionsWe study the effects of a finite cubic volume with twisted boundary conditions on pseudoscalar mesons. We first apply chiral perturbation theory in the p-regime and calculate the corrections for…Gilberto Colangelo, Alessio Vaghi·Jul 4, 2016SaveLearn
Review of lattice results concerning low-energy particle physicsWe review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle physics community. More specifically, we report on the…S. Aoki, Y. Aoki, D. Becirevic et al.·Jul 1, 2016SaveLearn
Nucleon-pion-state contribution in lattice calculations of the nucleon charges gA,gT and gSWe employ leading order covariant chiral perturbation theory to compute the nucleon-pion-state contribution to the 3-point correlation functions one typically measures in lattice QCD to extract the…Oliver Bar·Jun 30, 2016SaveLearn
Lattice simulations with Nf=2+1 improved Wilson fermions at a fixed strange quark massThe explicit breaking of chiral symmetry of the Wilson fermion action results in additive quark mass renormalization. Moreover, flavour singlet and non-singlet scalar currents acquire different…Gunnar S. Bali, Enno E. Scholz, Jakob Simeth et al.·Jun 29, 2016SaveLearn
Lattice field theory applications in high energy physicsLattice gauge theory was formulated by Kenneth Wilson in 1974. In the ensuing decades, improvements in actions, algorithms, and computers have enabled tremendous progress in QCD, to the point where…Steven Gottlieb·Jun 29, 2016SaveLearn
Quark masses and strong coupling constant in 2+1 flavor QCDWe present a determination of the strange, charm and bottom quark masses as well as the strong coupling constant in 2+1 flavor lattice QCD simulations using highly improved staggered quark action.…Y. Maezawa, P. Petreczky·Jun 28, 2016SaveLearn
Chiral Effective Theory Methods and their Application to the Structure of Hadrons from Lattice QCDFor many years chiral effective theory (ChEFT) has enabled and supported lattice QCD calculations of hadron observables by allowing systematic effects from unphysical lattice parameters to be…P. E. Shanahan·Jun 28, 2016SaveLearn
Finite volume effects on the electric polarizability of neutral hadrons in lattice QCDWe study the finite volume effects on the electric polarizability for the neutron, neutral pion, and neutral kaon using eight dynamically generated two-flavor nHYP-clover ensembles at two different…M. Lujan, A. Alexandru, W. Freeman et al.·Jun 25, 2016SaveLearn
The argument for justification of the complex Langevin method and the condition for correct convergenceThe complex Langevin method is a promising approach to the complex-action problem based on a fictitious time evolution of complexified dynamical variables under the influence of a Gaussian noise.…Keitaro Nagata, Jun Nishimura, Shinji Shimasaki·Jun 24, 2016SaveLearn
Encoding field theories into gravitiesWe propose a method to give a d+1 geometry from a d dimensional quantum field theory in the large N expansion. We first construct a d+1 dimensional field from the d dimensional one using the…Sinya Aoki, Kengo Kikuchi, Tetsuya Onogi·Jun 24, 2016SaveLearn
Lattice QCD for CosmologyWe present a full result for the equation of state (EoS) in 2+1+1 (up/down, strange and charm quarks are present) flavour lattice QCD. We extend this analysis and give the equation of state in…Sz. Borsanyi, Z. Fodor, K. H. Kampert et al.·Jun 23, 2016SaveLearn
Topological susceptibility at high temperature on the latticeQCD topological susceptibility at high temperature, χt(T), provides an important input for the estimate of the axion abundance in the present Universe. While the model independent determination of…J. Frison, R. Kitano, H. Matsufuru et al.·Jun 23, 2016SaveLearn
Axial, Scalar and Tensor Charges of the Nucleon from 2+1+1-flavor Lattice QCDWe present results for the isovector axial, scalar and tensor charges gu-dA, gu-dS and gu-dT of the nucleon needed to probe the Standard Model and novel physics. The axial charge is…Tanmoy Bhattacharya, Vincenzo Cirigliano, Saul Cohen et al.·Jun 22, 2016SaveLearn
A model of random center vortex lines in continuous 2+1-dimensional space-timeA picture of confinement in QCD based on a condensate of thick vortices with fluxes in the center of the gauge group (center vortices) is studied. Previous concrete model realizations of this picture…Derar Altarawneh, Michael Engelhardt, Roman Höllwieser·Jun 22, 2016SaveLearn