The hadronic vacuum polarization contribution to the muon g-2 from lattice QCDWe present a calculation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment, aμ hvp, in lattice QCD employing dynamical up and down quarks. We focus…M. Della Morte, A. Francis, V. Gülpers et al.·May 4, 2017SaveLearn
Topology (and axion's properties) from lattice QCD with a dynamical charmWe present results on QCD with four dynamical flavors in the temperature range 0.9 T/Tc 2. We have performed lattice simulations with Wilson fermions at maximal twist and…Florian Burger, Ernst-Michael Ilgenfritz, Maria Paola Lombardo et al.·May 4, 2017SaveLearn
Axial U(1) current in Grabowska and Kaplan's formulationRecently, Grabowska and Kaplan suggested a non-perturbative formulation of a chiral gauge theory, which consists of the conventional domain-wall fermion and a gauge field that evolves by the gradient…Yu Hamada, Hikaru Kawai·May 3, 2017SaveLearn
Improved lattice computation of proton decay matrix elementsWe present an improved result of lattice computation of the proton decay matrix elements in Nf=2+1 QCD. In this study, the significant improvement of statistical accuracy by adopting the error…Yasumichi Aoki, Taku Izubuchi, Eigo Shintani et al.·May 3, 2017SaveLearn
Using infinite volume, continuum QED and lattice QCD for the hadronic light-by-light contribution to the muon anomalous magnetic momentIn our previous work, the connected and leading disconnected hadronic light-by-light contributions to the muon anomalous magnetic moment (g - 2) have been computed using lattice QCD ensembles…Thomas Blum, Norman Christ, Masashi Hayakawa et al.·May 2, 2017SaveLearn
Chiral behavior of K πl ν decay form factors in lattice QCD with exact chiral symmetryWe calculate the form factors of the K πl ν semileptonic decays in three-flavor lattice QCD, and study their chiral behavior as a function of the momentum transfer and the Nambu-Goldstone boson…JLQCD Collaboration, S. Aoki, G. Cossu et al.·May 2, 2017SaveLearn
Sign problem in Z3-symmetric effective Polyakov-line modelAs an effective model corresponding to Z3-symmetric QCD (Z3-QCD), we construct a Z3-symmetric effective Polyakov-line model (Z3-EPLM) by using the logarithmic fermion effective action.…Takehiro Hirakida, Junpei Sugano, Hiroaki Kouno et al.·May 1, 2017SaveLearn
From deep inelastic scattering to heavy-flavor semi-leptonic decays: Total rates into multi-hadron final states from lattice QCDWe present a new technique for extracting decay and transition rates into final states with any number of hadrons. The approach is only sensitive to total rates, in which all out-states with a given…Maxwell T. Hansen, Harvey B. Meyer, Daniel Robaina·Apr 28, 2017SaveLearn
The Coulomb flux tube on the latticeIn Coulomb gauge a longitudinal electric field is generated instantaneously with the creation of a static quark-antiquark pair. The field due to the quarks is a sum of two contributions, one from the…Kristian Chung, Jeff Greensite·Apr 28, 2017SaveLearn
Spectroscopy with Local Multi-hadron Interpolators in Lattice QCDThe positive-parity nucleon spectrum is studied in 2 + 1 flavour lattice QCD in an attempt to discover novel low-lying energy eigenstates in the region of the Roper resonance. In this work, we employ…Adrian L. Kiratidis, Waseem Kamleh, Derek B. Leinweber et al.·Apr 28, 2017SaveLearn
Lattice Calculations of Heavy Quark Potential at Finite TemperatureWe report on the lattice calculations of the heavy quark potential at T>0 in 2+1 flavor QCD at physical quark masses using the Highly Improved Staggered Quark discretization. We study in detail the…P. Petreczky, J. Weber·Apr 27, 2017SaveLearn
Nucleon Magnetic Properties from Lattice QCD with the Background Field MethodThe magnetic moment and magnetic polarisability of the neutron and proton are investigated using the uniform background-field method and lattice QCD. The results are calculated using 323 x 64…Ryan Bignell, Derek Leinweber, Waseem Kamleh et al.·Apr 27, 2017SaveLearn
Lattice Gluon Propagator and One-Gluon-Exchange PotentialWe consider the interquark potential in the one-gluon-exchange (OGE) approximation, using a fully nonperturbative gluon propagator from large-volume lattice simulations. The resulting VLGP potential…Attilio Cucchieri, Tereza Mendes, Willian M. Serenone·Apr 26, 2017SaveLearn
Taming the Signal-to-Noise Problem in Lattice QCD by Phase ReweightingPath integrals describing quantum many-body systems can be calculated with Monte Carlo sampling techniques, but average quantities are often subject to signal-to-noise ratios that degrade…Michael L. Wagman, Martin J. Savage·Apr 24, 2017SaveLearn
Connected and Disconnected Contractions in Pion-Pion ScatteringWe show that the interplay of chiral effective field theory and lattice QCD can be used in the evaluation of so-called disconnected diagrams, which appear in the study of the isoscalar and isovector…Neramballi Ripunjay Acharya, Feng-Kun Guo, Ulf-G. Meißner et al.·Apr 22, 2017SaveLearn
Leading isospin-breaking corrections to pion, kaon and charmed-meson masses with Twisted-Mass fermionsWe present a lattice computation of the isospin-breaking corrections to pseudoscalar meson masses using the gauge configurations produced by the European Twisted Mass collaboration with $Nf = 2 + 1…D. Giusti, V. Lubicz, G. Martinelli et al.·Apr 21, 2017SaveLearn
Schwinger-Keldysh on the lattice: a faster algorithm and its application to field theoryA new algorithm is developed allowing the Monte Carlo study of a 1 + 1 dimensional theory in real time. The main algorithmic development is to avoid the explicit calculation of the Jacobian matrix…Andrei Alexandru, Gokce Basar, Paulo F. Bedaque et al.·Apr 21, 2017SaveLearn
Lattice calculations and the muon anomalous magnetic momentAnomalous magnetic moment of the muon, aμ=(gμ-2)/2, is one of the most precisely measured quantities in particle physics and it provides a stringent test of the Standard Model. The planned…Marina Krstic Marinkovic·Apr 21, 2017SaveLearn
Chiral Extrapolations of the ρ(770) Meson in Nf=2+1 Lattice QCD SimulationsRecent Nf=2+1 lattice data for meson-meson scattering in p-wave and isospin I=1 are analyzed using a unitarized model inspired by Chiral Perturbation Theory in the inverse-amplitude…B. Hu, R. Molina, M. Döring et al.·Apr 20, 2017SaveLearn
Extraction of HQE parameters from unquenched lattice data on pseudoscalar and vector heavy-light meson massesWe present a precise lattice computation of pseudoscalar and vector heavy-light meson masses for heavy-quark masses ranging from the physical charm mass up to 4 times the physical b-quark…P. Gambino, A. Melis, S. Simula·Apr 20, 2017SaveLearn
The QCD Equation of state and critical end-point estimates at O(μB6)We present results for the QCD Equation of State at non-zero chemical potentials corresponding to the conserved charges in QCD using Taylor expansion upto sixth order in the baryon number, electric…Sayantan Sharma, for Bielefeld-BNL-CCNU collaboration·Apr 20, 2017SaveLearn
P-wave ππ scattering and the ρ resonance from lattice QCDWe calculate the parameters describing elastic I=1, P-wave ππ scattering using lattice QCD with 2+1 flavors of clover fermions. Our calculation is performed with a pion mass of $mπ≈…Constantia Alexandrou, Luka Leskovec, Stefan Meinel et al.·Apr 18, 2017SaveLearn
High statistics study of in-medium S- and P-wave quarkonium states in lattice Non-relativistic QCDMany measurements of quarkonium suppression at the LHC, e.g. the nuclear modification factor RAA of J/Ψ, are well described by a multitude of different models. Thus pinpointing the underlying…Seyong Kim, Peter Petreczky, Alexander Rothkopf·Apr 18, 2017SaveLearn
Topology in the SU(Nf) chiral symmetry restored phase of unquenched QCD and axion cosmology IIWe investigate the physical consequences of the survival of the effects of the U(1)A anomaly in the chiral symmetric phase of QCD, and show that the free energy density is a singular function of the…Vicente Azcoiti·Apr 17, 2017SaveLearn
One-loop perturbative coupling of A and A through the chiral overlap operatorWe study the one-loop effective action defined by the chiral overlap operator in the four-dimensional lattice formulation of chiral gauge theories by Grabowska and Kaplan. In the tree-level continuum…Hiroki Makino, Okuto Morikawa, Hiroshi Suzuki·Apr 17, 2017SaveLearn