ξ/ξ2nd ratio as a tool to refine Effective Polyakov Loop modelsEffective Polyakov line actions are a powerful tool to study the finite temperature behaviour of lattice gauge theories. They are much simpler to simulate than the original lattice model and are…Michele Caselle, Alessandro Nada·Jul 7, 2017SaveLearn
Three particle quantization condition in a finite volume: 2. general formalism and the analysis of dataWe derive the three-body quantization condition in a finite volume using an effective field theory in the particle-dimer picture. Moreover, we consider the extraction of physical observables from the…H. -W. Hammer, J. -Y. Pang, A. Rusetsky·Jul 7, 2017SaveLearn
Approximate degeneracy of J=1 spatial correlators in high temperature QCDWe study spatial isovector meson correlators in Nf=2 QCD with dynamical domain-wall fermions on 323× 8 lattices at temperatures T=220-380 MeV. We measure the correlators of spin-one…C. Rohrhofer, Y. Aoki, G. Cossu et al.·Jul 6, 2017SaveLearn
Conformal dimensions via large charge expansionWe construct an efficient Monte Carlo algorithm that overcomes the severe signal-to-noise ratio problems and helps us to accurately compute the conformal dimensions of large-Q fields at the…Debasish Banerjee, Shailesh Chandrasekharan, Domenico Orlando·Jul 3, 2017SaveLearn
Feynman-Hellmann theorem for resonances and the quest for QCD exoticaThe generalization of the Feynman-Hellmann theorem for resonance states in quantum field theory is derived. On the basis of this theorem, a criterion is proposed to study the possible exotic nature…J. Ruiz de Elvira, U. -G. Meißner, A. Rusetsky et al.·Jun 27, 2017SaveLearn
Lattice study of continuity and finite-temperature transition in two-dimensional SU(N) x SU(N) Principal Chiral ModelWe present first-principle lattice study of the two-dimensional SU(N) x SU(N) Principal Chiral Model (PCM) on the cylinder R x S1 with variable compactification length L0 of S1 and with both periodic…P. V. Buividovich, S. N. Valgushev·Jun 27, 2017SaveLearn
Nature of chiral phase transition in two-flavor QCDWe investigate the nature of the chiral phase transition in the massless two-flavor QCD using the renormalization group improved gauge action and the Wilson quark action on 323× 16,…K. -I. Ishikawa, Y. Iwasaki, Yu Nakayama et al.·Jun 25, 2017SaveLearn
Three-particle quantization condition in a finite volume: 1. The role of the three-particle forceUsing non-relativistic effective Lagrangians in the particle-dimer picture, we rederive the expression for the energy shift of a loosely bound three-particle bound state of identical bosons in the…H. -W. Hammer, J. -Y. Pang, A. Rusetsky·Jun 23, 2017SaveLearn
The Tetraquark Candidate Zc(3900) from Dynamical Lattice QCD SimulationsThe structure of the tetraquark candidate Zc(3900), which was experimentally reported in e+ e- collisions, is studied by the s-wave meson-meson coupled-channel scattering on the lattice. The…Yoichi Ikeda·Jun 21, 2017SaveLearn
Properties of minimally doubled fermionsMost quark actions in lattice QCD encounter difficulties with chiral symmetry and its spontaneous breakdown. Minimally doubled fermions (MDF) are a category of strictly local chiral lattice fermions,…Johannes Heinrich Weber·Jun 21, 2017SaveLearn
Baryon-Baryon Interactions and Spin-Flavor Symmetry from Lattice Quantum ChromodynamicsLattice quantum chromodynamics is used to constrain the interactions of two octet baryons at the SU(3) flavor-symmetric point, with quark masses that are heavier than those in nature (equal to that…Michael L. Wagman, Frank Winter, Emmanuel Chang et al.·Jun 20, 2017SaveLearn
Non-perturbative renormalization of tensor currents: strategy and results for Nf = 0 and Nf = 2 QCDTensor currents are the only quark bilinear operators lacking a non-perturbative determination of their renormalisation group (RG) running between hadronic and electroweak scales. We develop the…Carlos Pena, David Preti·Jun 20, 2017SaveLearn
Scattering processes and resonances from lattice QCDThe vast majority of hadrons observed in nature are not stable under the strong interaction, rather they are resonances whose existence is deduced from enhancements in the energy dependence of…Raul A. Briceno, Jozef J. Dudek, Ross D. Young·Jun 20, 2017SaveLearn
Domain Wall Fermion QCD with the Exact One Flavor AlgorithmLattice QCD calculations including the effects of one or more non-degenerate sea quark flavors are conventionally performed using the Rational Hybrid Monte Carlo (RHMC) algorithm, which computes the…C. Jung, C. Kelly, R. D. Mawhinney et al.·Jun 19, 2017SaveLearn
Center Vortices and Topological ChargeI review important aspects of the relation between center vortices and topological charge, leading to chiral symmetry breaking.Roman Höllwieser·Jun 16, 2017SaveLearn
Isospin breaking corrections to meson masses and the hadronic vacuum polarization: a comparative studyWe calculate the strong isospin breaking and QED corrections to meson masses and the hadronic vacuum polarization in an exploratory study on a 64×243 lattice with an inverse lattice spacing…P. Boyle, V. Gülpers, J. Harrison et al.·Jun 16, 2017SaveLearn
Supersymmetric QCD on the Lattice: An Exploratory StudyWe perform a pilot study of the perturbative renormalization of a Supersymmetric gauge theory with matter fields on the lattice. As a specific example, we consider Supersymmetric N=1 QCD…M. Costa, H. Panagopoulos·Jun 16, 2017SaveLearn
Power corrections from decoupling of the charm quarkDecoupling of heavy quarks at low energies can be described by means of an effective theory as shown by S. Weinberg in Ref. [1]. We study the decoupling of the charm quark by lattice simulations. We…Francesco Knechtli, Tomasz Korzec, Björn Leder et al.·Jun 15, 2017SaveLearn
Short-distance matrix elements for D0-meson mixing for Nf=2+1 lattice QCDWe calculate in three-flavor lattice QCD the short-distance hadronic matrix elements of all five ΔC=2 four-fermion operators that contribute to neutral D-meson mixing both in and beyond the…A. Bazavov, C. Bernard, C. M. Bouchard et al.·Jun 14, 2017SaveLearn
Fighting topological freezing in the two-dimensional CPN-1 modelWe perform Monte Carlo simulations of the CPN-1 model on the square lattice for N=10, 21, and 41. Our focus is on the severe slowing down related to instantons. To fight this problem we…Martin Hasenbusch·Jun 14, 2017SaveLearn
Note on lattice regularization and equal-time correlators for parton distribution functionsWe show that a recent interesting idea to circumvent the difficulties with the continuation of parton distribution functions to the Euclidean region, that consists in looking at equal time…G. C. Rossi, M. Testa·Jun 14, 2017SaveLearn
Landau-Ginzburg-Wilson approach to critical phenomena in the presence of gauge symmetriesWe critically reconsider the Landau-Ginzburg-Wilson (LGW) approach to critical phenomena in the presence of gauge symmetries. In the LGW framework, to obtain the universal features of a continuous…Andrea Pelissetto, Antonio Tripodo, Ettore Vicari·Jun 14, 2017SaveLearn
A Novel Non-Perturbative Lattice Regularization of an Anomaly-Free 1 + 1d Chiral SU(2) Gauge TheoryWe present a numerical treatment of a novel non-perturbative lattice regularization of a 1+1d SU(2) Chiral Gauge Theory. Our approach follows recent proposals that exploit the newly discovered…Michael DeMarco, Xiao-Gang Wen·Jun 14, 2017SaveLearn
Convergent series for polynomial lattice models with complex actionsLattice models with complex actions are important for the understanding of matter at finite densities, but not accessible by the standard Monte Carlo techniques due to the sign problem. Here we…Vasily Sazonov·Jun 13, 2017SaveLearn
Gradient flows without blow-up for Lefschetz thimblesWe propose new gradient flows that define Lefschetz thimbles and do not blow up in a finite flow time. We study analytic properties of these gradient flows, and confirm them by numerical tests in…Yuya Tanizaki, Hiromichi Nishimura, Jacobus J. M. Verbaarschot·Jun 12, 2017SaveLearn