Dynamically-coupled partial-waves in ρπ isospin-2 scattering from lattice QCDWe present the first determination of ρπ scattering, incorporating dynamically-coupled partial-waves, using lattice QCD, a first-principles numerical approach to QCD. Considering the case of…Antoni J. Woss, Christopher E. Thomas, Jozef J. Dudek et al.·Feb 15, 2018SaveLearn
Gauge invariant determination of charged hadron massesIn this paper we show, for the first time, that charged-hadron masses can be calculated on the lattice without relying on gauge fixing at any stage of the calculations. In our simulations we follow a…Martin Hansen, Biagio Lucini, Agostino Patella et al.·Feb 15, 2018SaveLearn
Non-perturbative quark mass renormalisation and running in Nf=3 QCDWe determine from first principles the quark mass anomalous dimension in Nf=3 QCD between the electroweak and hadronic scales. This allows for a fully non-perturbative connection of the perturbative…Isabel Campos, Patrick Fritzsch, Carlos Pena et al.·Feb 14, 2018SaveLearn
Gradient-flowed thermal correlators: how much flow is too much?Gradient flow has been proposed in the lattice community as a tool to reduce the sensitivity of operator correlation functions to noisy UV fluctuations. We test perturbatively under what conditions…Alexander M. Eller, Guy D. Moore·Feb 13, 2018SaveLearn
Up-, down-, strange-, charm-, and bottom-quark masses from four-flavor lattice QCDWe calculate the up-, down-, strange-, charm-, and bottom-quark masses using the MILC highly improved staggered-quark ensembles with four flavors of dynamical quarks. We use ensembles at six lattice…A. Bazavov, C. Bernard, N. Brambilla et al.·Feb 12, 2018SaveLearn
Vector particle scattering on the latticeIn this work, we present an explicit form of the Luescher equation and consider the construction of the operators in different irreducible representations for the case of scattering of two vector…Fernando Romero-López, Akaki Rusetsky, Carsten Urbach·Feb 9, 2018SaveLearn
Three-body spectrum in a finite volume: the role of cubic symmetryThe three-particle quantization condition is partially diagonalized in the center-of-mass frame by using cubic symmetry on the lattice. To this end, instead of spherical harmonics, the kernel of the…M. Döring, H. -W. Hammer, M. Mai et al.·Feb 9, 2018SaveLearn
Determination of s- and p-wave I=1/2 Kπ scattering amplitudes in Nf=2+1 lattice QCDThe elastic I=1/2, s- and p-wave kaon-pion scattering amplitudes are calculated using a single ensemble of anisotropic lattice QCD gauge field configurations with Nf = 2+1 flavors…Ruairí Brett, John Bulava, Jacob Fallica et al.·Feb 9, 2018SaveLearn
Surface operator study in SU(2) gauge field theoryThe surface operator in an SU(2) gauge field theory is studied. We analyze Abelian projection of the SU(2) symmetry to the U(1) group calculating the surface parameter. The surface parameter…Valdimir Goy, Kseniia Durman, Alexander Molochkov·Feb 9, 2018SaveLearn
Disordered fermions, extra dimensions and a solvable Yang-Mills theoryGeneralizing disorder couplings of the SYK model by means of SU(N) matrices we formulate a lattice model of fermions in d+1 dimensions. Integration of fermions yields an effective theory of…Artan Borici·Feb 7, 2018SaveLearn
Perturbative matching of continuum and lattice quasi-distributionsMatching of the quasi parton distribution functions between continuum and lattice is addressed using lattice perturbation theory specifically with Wilson-type fermions. The matching is done for…Tomomi Ishikawa·Feb 7, 2018SaveLearn
Lee-Yang zeros in lattice QCD for searching phase transition pointsWe report Lee-Yang zeros behavior at finite temperature and density. The quark number densities, <n>, are calculated at the pure imaginary chemical potential, where no sign problem occurs. Then, the…M. Wakayama, V. G. Bornyakov, D. L. Boyda et al.·Feb 6, 2018SaveLearn
Testing the criterion for correct convergence in the complex Langevin methodRecently the complex Langevin method (CLM) has been attracting attention as a solution to the sign problem, which occurs in Monte Carlo calculations when the effective Boltzmann weight is not real…Keitaro Nagata, Jun Nishimura, Shinji Shimasaki·Feb 6, 2018SaveLearn
Instanton dominance over αs at low momenta from lattice QCD simulations at Nf=0, Nf=2+1 and Nf=2+1+1We report on an instanton-based analysis of the gluon Green functions in the Landau gauge for low momenta; in particular we use lattice results for αs in the symmetric momentum subtraction scheme…Andreas Athenodorou, Philippe Boucaud, Feliciano de Soto et al.·Feb 5, 2018SaveLearn
Non-perturbative evaluation for anomalous dimension in 2-dimensional O(3) sigma modelWe calculate the wave-function renormalization in 2-dimensional O(3) sigma model, non- perturbatively. It is evaluated in a box with a finite spatial extent. We determine the anomalous dimension in…Sergio Calle Jimenez, Makoto Oka, Kiyoshi Sasaki·Feb 4, 2018SaveLearn
Nature of the chiral phase transition of two flavour QCD from imaginary chemical potential with HISQ fermionsThe nature of the thermal phase transition of two flavor QCD in the chiral limit has an important implication for the QCD phase diagram. We carry out lattice QCD simulations in an attempt to address…Liang-Kai Wu, Fa-Ling Zhang·Feb 2, 2018SaveLearn
Bayesian study of relativistic open and hidden charm in anisotropic lattice QCDWe present the first combined study of correlators and spectral properties of charmonium and open-charm-mesons at finite temperature using a fully relativistic lattice QCD approach. The QCD medium is…Aoife Kelly, Alexander Rothkopf, Jon-Ivar Skullerud·Feb 2, 2018SaveLearn
Automated lattice data generationThe process of generating ensembles of gauge configurations (and measuring various observables over them) can be tedious and error-prone when done "by hand". In practice, most of this…Venkitesh Ayyar, Daniel C. Hackett, William I. Jay et al.·Feb 2, 2018SaveLearn
On the zero-crossing of the three-gluon Green's function from lattice simulationsWe report on some efforts recently made in order to gain a better understanding of some IR properties of the 3-point gluon Green's function by exploiting results from large-volume quenched…A. Athenodorou, Ph. Boucaud, F. De Soto et al.·Feb 2, 2018SaveLearn
On chiral extrapolations of charmed meson masses and coupled-channel reaction dynamicsWe perform an analysis of QCD lattice data on charmed meson masses. The quark-mass dependence of the data set is used to gain information on the size of counter terms of the chiral Lagrangian…Xiao-Yu Guo, Yonggoo Heo, Matthias F. M. Lutz·Jan 30, 2018SaveLearn
Instanton liquid properties from lattice QCDWe examined the instanton contribution to the QCD configurations generated from lattice QCD for NF=0, NF=2+1 and NF=2+1+1 dynamical quark flavors from two different and complementary…A. Athenodorou, Ph. Boucaud, F. De Soto et al.·Jan 30, 2018SaveLearn
Strange nucleon electromagnetic form factors from lattice QCDWe evaluate the strange nucleon electromagnetic form factors using an ensemble of gauge configurations generated with two degenerate maximally twisted mass clover-improved fermions with mass tuned to…C. Alexandrou, M. Constantinou, K. Hadjiyiannakou et al.·Jan 29, 2018SaveLearn
Non-Perturbative Renormalisation and Running of BSM Four-Quark Operators in Nf = 2 QCDWe perform a non-perturbative study of the scale-dependent renormalisation factors of a complete set of dimension-six four-fermion operators. The renormalisation-group (RG) running is determined in…Petros Dimopoulos, Gregorio Herdoíza, Mauro Papinutto et al.·Jan 29, 2018SaveLearn
The fate of UA(1) and topological features of QCD at finite temperatureThe nature of chiral phase transition for QCD with two light quark flavors is not yet completely resolved. This is primarily because one has to understand whether or not the anomalous U(1) symmetry…Sayantan Sharma·Jan 25, 2018SaveLearn
The light bound states of N=1 supersymmetric SU(3) Yang-Mills theory on the latticeIn this article we summarise our results from numerical simulations of N=1 supersymmetric Yang-Mills theory with gauge group SU(3). We use the formulation of Curci and Veneziano with…Sajid Ali, Georg Bergner, Henning Gerber et al.·Jan 24, 2018SaveLearn