Stochastic reconstructions of spectral functions: Application to lattice QCDWe present a detailed study of the applications of two stochastic approaches, stochastic optimization method (SOM) and stochastic analytical inference (SAI), to extract spectral functions from…Heng-Tong Ding, Olaf Kaczmarek, Swagato Mukherjee et al.·Dec 9, 2017SaveLearn
Nuclear modification of scalar, axial and tensor charges from lattice QCDComplete flavour decompositions of the scalar, axial and tensor charges of the proton, deuteron, diproton and 3He at SU(3)-symmetric values of the quark masses corresponding to a pion mass…Emmanuel Chang, Zohreh Davoudi, William Detmold et al.·Dec 8, 2017SaveLearn
Mesonic String of Diquark-Quark Configuration at Finite TemperatureWe investigate the distance and temperatures scale for which the string in baryonic quark configuration approaches the limiting behavior of mesonic strings in pure Yang-Mills SU(3) lattice gauge…A. Bakry, X. Chen, M. Deliyergiyev et al.·Dec 8, 2017SaveLearn
Duals of U(N) LGT with staggered fermionsVarious approaches to construction of dual formulations of non-abelian lattice gauge theories are reviewed. In the case of U(N) LGT we use a theory of the Weingarten functions to construct a dual…O. Borisenko, V. Chelnokov, S. Voloshyn·Dec 8, 2017SaveLearn
Lattice study of area law for double-winding Wilson loopsWe study the double-winding Wilson loops in the SU(N) Yang-Mills theory on the lattice. We discuss how the area law falloff of the double-winding Wilson loop average is modified by changing the…Akihiro Shibata, Seikou Kato, Kei-Ichi Kondo et al.·Dec 8, 2017SaveLearn
Simulation of Scalar Field Theories with Complex ActionsWe develop a method for the simulation of scalar field theories with complex actions which is local, simple to implement and can be used in any number of space-time dimensions. For model systems…Leandro Medina, Michael C. Ogilvie·Dec 7, 2017SaveLearn
Lattice QCD at finite baryon density using analytic continuationWe simulate lattice QCD with two flavors of Wilson fermions at imaginary baryon chemical potential. Results for the baryon number density computed in the confining and deconfining phases at imaginary…V. G. Bornyakov, D. L. Boyda, V. A. Goy et al.·Dec 7, 2017SaveLearn
I=0 ππ s-wave scattering length from lattice QCDWe deliver lattice results for the I=0 ππ elastic s-wave scattering length calculated with the MILC Nf=3 flavors of the Asqtad-improved staggered fermions. The scattering phase shifts are…Ziwen Fu, Xu Chen·Dec 6, 2017SaveLearn
Abelian and non-Abelian Berry curvatures in lattice QCDWe studied the Berry curvature of the massive Dirac fermion in 3+1 dimensions. For the non-interacting Dirac fermion, the Berry curvature is non-Abelian because of the degeneracy of positive and…Shi Pu, Arata Yamamoto·Dec 6, 2017SaveLearn
Plasmon mass scale in two dimensional classical nonequilibrium gauge theoryWe study the plasmon mass scale in weakly coupled strongly interacting nonabelian gauge theory in a two dimensional configuration that mimics the boost invariant initial color fields in a heavy ion…Tuomas Lappi, Jarkko Peuron·Dec 6, 2017SaveLearn
The Chiral Separation Effect in quenched finite-density QCDWe present results of a study of the Chiral Separation Effect (CSE) in quenched finite-density QCD. Using a recently developed numerical method we calculate the conserved axial current for exactly…M. Puhr, P. V. Buividovich·Dec 5, 2017SaveLearn
Restoring canonical partition functions from imaginary chemical potentialUsing GPGPU techniques and multi-precision calculation we developed the code to study QCD phase transition line in the canonical approach. The canonical approach is a powerful tool to investigate…V. G. Bornyakov, D. Boyda, V. Goy et al.·Dec 5, 2017SaveLearn
Practical Implementation of Lattice QCD Simulation on Intel Xeon Phi Knights LandingWe investigate implementation of lattice Quantum Chromodynamics (QCD) code on the Intel Xeon Phi Knights Landing (KNL). The most time consuming part of the numerical simulations of lattice QCD is a…Issaku Kanamori, Hideo Matsufuru·Dec 5, 2017SaveLearn
Topological Susceptibility under Gradient FlowWe study the impact of the Gradient Flow on the topology in various models of lattice field theory. The topological susceptibility χ t is measured directly, and by the slab method, which is…Héctor Mejía-Díaz, Wolfgang Bietenholz, Krzysztof Cichy et al.·Dec 4, 2017SaveLearn
Spinorial flux tubes in SO(N) gauge theories in 2+1 dimensionsWe investigate whether one can observe in SO(3) and SO(4) (lattice) gauge theories the presence of spinorial flux tubes, i.e. ones that correspond to the fundamental representation of SU(2); and…Michael Teper·Dec 4, 2017SaveLearn
Path optimization method for the sign problemWe propose a path optimization method (POM) to evade the sign problem in the Monte-Carlo calculations for complex actions. Among many approaches to the sign problem, the Lefschetz-thimble…Akira Ohnishi, Yuto Mori, Kouji Kashiwa·Dec 4, 2017SaveLearn
Heavy Domain Wall Fermions: The RBC and UKQCD charm physics programWe review the domain wall charm physics program of the RBC and UKQCD collaborations based on simulations including ensembles with physical pion mass. We summarise our current set-up and present a…P. A. Boyle, L. Del Debbio, A. Juttner et al.·Dec 4, 2017SaveLearn
Hadronic light-by-light scattering amplitudes from lattice QCD versus dispersive sum rulesThe hadronic contribution to the eight forward amplitudes of light-by-light scattering (γ*γ* γ*γ*) is computed in lattice QCD. Via dispersive sum rules, the amplitudes are compared to a…Antoine Gérardin, Jeremy Green, Oleksii Gryniuk et al.·Dec 1, 2017SaveLearn
MILC Code Performance on High End CPU and GPU Supercomputer ClustersWith recent developments in parallel supercomputing architecture, many core, multi-core, and GPU processors are now commonplace, resulting in more levels of parallelism, memory hierarchy, and…Ruizi Li, Carleton DeTar, Steven Gottlieb et al.·Dec 1, 2017SaveLearn
Multi-scale methods in quantum field theoryDaubechies wavelets are used to make an exact multi-scale decomposition of quantum fields. For reactions that involve a finite energy that take place in a finite volume, the number of relevant…W. N. Polyzou, Tracie Michlin, Fatih Bulut·Nov 30, 2017SaveLearn
Computing the nucleon charge and axial radii directly at Q2=0 in lattice QCDWe describe a procedure for extracting momentum derivatives of nucleon matrix elements on the lattice directly at Q2=0. This is based on the Rome method for computing momentum derivatives of quark…Nesreen Hasan, Jeremy Green, Stefan Meinel et al.·Nov 30, 2017SaveLearn
D meson semileptonic form factors in Nf=3 QCD with Möbius domain-wall quarksWe present our calculation of D pi and D K semileptonic form factors in Nf = 2+1 lattice QCD. We simulate three lattice cutoffs 1/a 2.5, 3.6 and 4.5 GeV with pion masses as low as 230…Takashi Kaneko, Brian Colquhoun, Hidenori Fukaya et al.·Nov 30, 2017SaveLearn
Charmonium-nucleon interactions from the time-dependent HAL QCD methodThe charmonium-nucleon effective central interactions have been computed by the time-dependent HAL QCD method. This gives an updated result of a previous study based on the time-independent method,…Takuya Sugiura, Yoichi Ikeda, Noriyoshi Ishii·Nov 30, 2017SaveLearn
Lattice QCD calculation of the B(s) D(s)*ν form factors at zero recoil and implications for |Vcb|We present results of a lattice QCD calculation of B D* and Bs Ds* axial vector matrix elements with both states at rest. These zero recoil matrix elements provide the normalization…Judd Harrison, Christine Davies, Matthew Wingate·Nov 29, 2017SaveLearn
Two- and three-point functions at criticality: Monte Carlo simulations of the improved three-dimensional Blume-Capel modelWe compute two- and three-point functions at criticality for the three-dimensional Ising universality class. To this end we simulate the improved Blume-Capel model at the critical temperature on…Martin Hasenbusch·Nov 29, 2017SaveLearn