Strong-isospin-breaking correction to the muon anomalous magnetic moment from lattice QCD at the physical pointAll lattice-QCD calculations of the hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment to-date have been performed with degenerate up- and down-quark masses. Here…Bipasha Chakraborty, C. T. H. Davies, C. DeTar et al.·Oct 30, 2017SaveLearn
Why is the mission impossible? -- Decoupling the mirror Ginsparg-Wilson fermions in the lattice models for two-dimensional abelian chiral gauge theoriesIn the mirror fermion approach with Ginsparg-Wilson fermions, it has been argued that the mirror fermions do not decouple: in the 345 model with Dirac- and Majorana-Yukawa couplings to XY-spin field,…Yoshio Kikukawa·Oct 30, 2017SaveLearn
Lattice calculation of hadronic tensor of the nucleonWe report an attempt to calculate the deep inelastic scattering structure functions from the hadronic tensor calculated on the lattice. We used the Backus-Gilbert reconstruction method to address the…Jian Liang, Keh-Fei Liu, Yi-Bo Yang·Oct 30, 2017SaveLearn
Lattice QCD Application Development within the US DOE Exascale Computing ProjectIn October, 2016, the US Department of Energy launched the Exascale Computing Project, which aims to deploy exascale computing resources for science and engineering in the early 2020's. The…Richard Brower, Norman Christ, Carleton DeTar et al.·Oct 30, 2017SaveLearn
SU(2) with fundamental fermions and scalarsWe present preliminary results on the lattice simulation of an SU(2) gauge theory with two fermion flavors and one strongly interacting scalar field, all in the fundamental representation of SU(2).…Martin Hansen, Tadeusz Janowski, Claudio Pica et al.·Oct 30, 2017SaveLearn
Life Outside the Golden Window: Statistical Angles on the Signal-to-Noise ProblemLattice QCD simulations of multi-baryon correlation functions can predict the structure and reactions of nuclei without encountering the baryon chemical potential sign problem. However, they suffer…Michael L. Wagman·Oct 30, 2017SaveLearn
Nucleon structure from 2+1 flavor lattice QCD near the physical pointWe present an update on our results of nucleon form factors measured on a large-volume lattice (8.1fm)4 at almost the physical point in 2+1 flavor QCD. The configurations are generated with…Natsuki Tsukamoto, Ken-Ichi Ishikawa, Yoshinobu Kuramashi et al.·Oct 30, 2017SaveLearn
Pion mass dependence of the HVP contribution to muon g-2One of the systematic errors in some of the current lattice computations of the HVP contribution to the muon anomalous magnetic moment g-2 is that associated with the extrapolation to the physical…Maarten Golterman, Kim Maltman, Santiago Peris·Oct 28, 2017SaveLearn
The pion vector form factor from Lattice QCD at the physical pointWe present an investigation of the electromagnetic pion form factor, Fπ(Q2), at small values of the four-momentum transfer Q2 ( 0.25 GeV2), based on the gauge configurations…C. Alexandrou, S. Bacchio, P. Dimopoulos et al.·Oct 28, 2017SaveLearn
Testing a non-perturbative mechanism for elementary fermion mass generation: lattice setupIn this contribution we lay down a lattice setup that allows for the non-perturbative study of a field theoretical model where a SU(2) fermion doublet, subjected to non-Abelian gauge interactions, is…Stefano Capitani, Giulia Maria de Divitiis, Petros Dimopoulos et al.·Oct 27, 2017SaveLearn
Testing a non-perturbative mechanism for elementary fermion mass generation: numerical resultsBased on a recent proposal according to which elementary particle masses could be generated by a non-perturbative dynamical phenomenon, alternative to the Higgs mechanism, we carry out lattice…Stefano Capitani, Giulia Maria de Divitiis, Petros Dimopoulos et al.·Oct 27, 2017SaveLearn
Influence of magnetic fields on the color screening massesWe present some recent results obtained in the study of the color magnetic and electric screening masses in the QCD plasma. In particular, we discuss how the masses get modified by strong external…Claudio Bonati, Massimo D'Elia, Michele Mesiti et al.·Oct 27, 2017SaveLearn
A lattice calculation of the hadronic vacuum polarization contribution to (g-2)μWe present results of calculations of the hadronic vacuum polarisation contribution to the muon anomalous magnetic moment. Specifically, we focus on controlling the infrared regime of the vacuum…M. Della Morte, A. Francis, A. Gérardin et al.·Oct 27, 2017SaveLearn
Equation of state in (2+1)-flavor QCD at physical point with improved Wilson fermion action using gradient flowWe study the energy-momentum tensor and the equation of state as well as the chiral condensate in (2+1)-flavor QCD at the physical point applying the method of Makino and Suzuki based on the gradient…QCD Collaboration, Kazuyuki Kanaya, Shinji Ejiri et al.·Oct 27, 2017SaveLearn
Tensor Network study of the (1+1)-dimensional Thirring ModelTensor Network methods have been established as a powerful technique for simulating low dimensional strongly-correlated systems for over two decades. Employing the formalism of Matrix Product States,…Mari Carmen Bañuls, Krzysztof Cichy, Ying-Jer Kao et al.·Oct 27, 2017SaveLearn
Lattice Formulation of N = 2* Yang-MillsWe formulate N = 2* supersymmetric Yang-Mills theory on a Euclidean spacetime lattice using the method of topological twisting. The lattice formulation preserves one scalar supersymmetry…Anosh Joseph·Oct 26, 2017SaveLearn
Pushing Memory Bandwidth Limitations Through Efficient Implementations of Block-Krylov Space Solvers on GPUsLattice quantum chromodynamics simulations in nuclear physics have benefited from a tremendous number of algorithmic advances such as multigrid and eigenvector deflation. These improve the time to…M. A. Clark, Alexei Strelchenko, Alejandro Vaquero et al.·Oct 26, 2017SaveLearn
HQE parameters from unquenched lattice data on pseudoscalar and vector heavy-light meson massesWe present a new lattice determination of some of the parameters appearing both in the Operator Product Expansion (OPE) analysis of the inclusive semileptonic B-meson decays and in the Heavy Quark…Paolo Gambino, Aurora Melis, Silvano Simula·Oct 26, 2017SaveLearn
B→ Dν at non-zero recoilWe present preliminary results from our analysis of the form factors for the B→ Dν decay at non-zero recoil. Our analysis includes 15 MILC asqtad ensembles…A. Vaquero Avilés-Casco, C. DeTar, D. Du et al.·Oct 26, 2017SaveLearn
Loop-TNR analysis of CP(1) model with theta termThe phase structure of the two dimensional lattice CP(1) model in the presence of the θ term is analyzed by tensor network methods. The tensor renormalization group, which is a standard…Hikaru Kawauchi, Shinji Takeda·Oct 26, 2017SaveLearn
Topology in the SU(Nf) chiral symmetry restored phase of unquenched QCD and axion cosmologyThe axion is one of the more interesting candidates to make the dark matter of the universe, and the axion potential plays a fundamental role in the determination of the dynamics of the axion field.…Vicente Azcoiti·Oct 26, 2017SaveLearn
Higgs-Yukawa model on the latticeWe present results from two projects on lattice calculations for the Higgs-Yukawa model. First we report progress on the search of first-order thermal phase transitions in the presence of a…David Y. -J. Chu, Karl Jansen, Bastian Knippschild et al.·Oct 26, 2017SaveLearn
Mass Preconditioning for the Exact One-Flavor Action in Lattice QCD with Domain-Wall FermionThe mass-preconditioning (MP) technique has become a standard tool to enhance the efficiency of the hybrid Monte-Carlo simulation (HMC) of lattice QCD with dynamical quarks, for 2-flavors QCD with…Yu-Chih Chen, Ting-Wai Chiu·Oct 26, 2017SaveLearn
Topological charge and cooling scales in pure SU(2) lattice gauge theoryUsing Monte Carlo simulations with overrelaxation, we have equilibrated lattices up to β=2.928, size 604, for pure SU(2) lattice gauge theory with the Wilson action. We calculate topological…Bernd A. Berg, David A. Clarke·Oct 25, 2017SaveLearn
Multi-boson block factorization of fermionsThe numerical computations of many quantities of theoretical and phenomenological interest are plagued by statistical errors which increase exponentially with the distance of the sources in the…Leonardo Giusti, Marco Cè, Stefan Schaefer·Oct 25, 2017SaveLearn