On the β- and quark mass dependence of the nuclear transition in the strong coupling regimeLattice QCD in a dual formulation with staggered fermions is well established in the strong coupling limit and allows to perform Monte Carlo simulations at finite baryon chemical potential. We have…Jangho Kim, Owe Philipsen, Wolfgang Unger·Dec 2, 2019SaveLearn
Nucleon isovector couplings from 2+1 flavor lattice QCD at the physical pointWe present results on the axial, scalar and tensor isovector-couplings of the nucleon from 2+1 flavor lattice QCD with physical light quarks (mπ = 135 MeV) in large spatial volume of (10.8…Natsuki Tsukamoto, Yasumichi Aoki, Ken-Ichi Ishikawa et al.·Dec 2, 2019SaveLearn
Exploring the QCD phase diagram at finite density by the complex Langevin method on a 163× 32 latticeWe explore the QCD phase diagram at finite density with four-flavor staggered fermions using the complex Langevin method, which is a promising approach to overcome the sign problem. In our previous…Shoichiro Tsutsui, Yuta Ito, Hideo Matsufuru et al.·Dec 1, 2019SaveLearn
Lattice QCD estimate of the quark-gluon plasma photon emission rateWe present a computation of the photon emission rate of the quark-gluon plasma from two-flavor lattice QCD at a temperature of 254 MeV, which follows up on the work presented in [1]. We perform a…Bastian B. Brandt, Marco Cè, Anthony Francis et al.·Dec 1, 2019SaveLearn
Nucleon axial structure from lattice QCDWe present a new analysis method that allows one to understand and model excited state contributions in observables that are dominated by a pion pole. We apply this method to extract axial and…Gunnar S. Bali, Lorenzo Barca, Sara Collins et al.·Nov 29, 2019SaveLearn
Transverse momentum broadening from the latticeWe present a calculation of the transverse momentum broadening of a high-energy fundamental-representation particle, as calculated nonperturbatively within EQCD using the technique proposed by…Guy D. Moore, Niels Schlusser·Nov 29, 2019SaveLearn
Phase transition of four-dimensional Ising model with tensor network schemeWe investigate the phase transition of the four-dimensional Ising model with two types of tensor network scheme, one is the higher-order tensor renormalization group and the other is the anisotropic…Shinichiro Akiyama, Yoshinobu Kuramashi, Takumi Yamashita et al.·Nov 29, 2019SaveLearn
Nucleon and Ω Baryon Masses with All-HISQ Fermions at the Physical PointWe present the results of the nucleon and Ω baryon masses using staggered action for both valence and sea quarks. Three ensembles with the physical pion mass at approximate lattice spacings of…Ciaran Hughes, Yin Lin, Aaron S. Meyer·Nov 29, 2019SaveLearn
The energy-momentum tensor in lattice QCD and the Equation of StateWe present a new theoretical and practical strategy to renormalize non-perturbatively the energy-momentum tensor in lattice QCD based on the framework of shifted boundary conditions. As a preparatory…Mattia Dalla Brida, Leonardo Giusti, Michele Pepe·Nov 29, 2019SaveLearn
Exploring the worldline formulation of the Potts modelWe revisit the issue of worldline formulations for the q-state Potts model and discuss a worldline representation in arbitrary dimensions which also allows for magnetic terms. For vanishing magnetic…Christof Gattringer, Daniel Göschl, Pascal Törek·Nov 28, 2019SaveLearn
Study of the pion-pion scatterings with a combination of all-to-all propagators and the HAL QCD methodIn this paper, we report recent developments of the HAL QCD method for two hadron systems which contain quark annihilation processes using all-to-all quark propagators. We employ the hybrid method…Yutaro Akahoshi, Sinya Aoki, Tatsumi Aoyama et al.·Nov 28, 2019SaveLearn
Spectroscopy of a1 mesons from lattice QCD with the truncated overlap fermionsWe study the ground state and next radial excitation of the a1 mesons from a quenched lattice QCD simulation with the truncated overlap fermions formalism based on domain wall fermions. Our…Masayuki Wakayama, Yuko Murakami, Atsushi Nakamura et al.·Nov 28, 2019SaveLearn
Qubit regularized O(N) nonlinear sigma modelsMotivated by the prospect of quantum simulation of quantum field theories, we formulate the O(N) nonlinear sigma model as a "qubit" model with an (N+1)-dimensional local Hilbert space at each…Hersh Singh·Nov 27, 2019SaveLearn
Nucleon Mass with Highly Improved Staggered QuarksWe present the first computation in a program of lattice-QCD baryon physics using staggered fermions for sea and valence quarks. For this initial study, we present a calculation of the nucleon mass,…Yin Lin, Aaron S. Meyer, Ciaran Hughes et al.·Nov 27, 2019SaveLearn
Evading the model sign problem in the PNJL model with repulsive vector-type interaction via path optimizationWe discuss the sign problem in the Polyakov loop extended Nambu--Jona-Lasinio model with repulsive vector-type interaction by using the path optimization method. In this model, both of the Polyakov…Akira Ohnishi, Yuto Mori, Kouji Kashiwa·Nov 27, 2019SaveLearn
Exploring the QCD phase diagram via reweighting from isospin chemical potentialWe investigate the QCD phase diagram for small values of baryon and strange quark chemical potentials from simulations at non-zero isospin chemical potential. Simulations at pure isospin chemical…Bastian B. Brandt, Francesca Cuteri, Gergely Endrodi et al.·Nov 27, 2019SaveLearn
Continuous β function for the SU(3) gauge systems with two and twelve fundamental flavorsThe gradient flow transformation can be interpreted as continuous real-space renormalization group transformation if a coarse-graining step is incorporated as part of calculating expectation values.…Anna Hasenfratz, Oliver Witzel·Nov 26, 2019SaveLearn
Study of thermal SU(3) supersymmetric Yang-Mills theory and near-conformal theories from the gradient flowWe compute the renormalization group flow of the mass anomalous dimension in adjoint QCD with Nf=1, 3/2, and 2 Dirac fermions, using the gradient flow. Preliminary results are in agreement…Georg Bergner, Camilo López, Stefano Piemonte·Nov 26, 2019SaveLearn
Partial deconfinement in gauge theoriesWe provide the evidence for the existence of partially deconfined phase in large-N gauge theory. In this phase, the SU(M) subgroup of SU(N) gauge group deconfines, where MN changes…Masanori Hanada, Goro Ishiki, Hiromasa Watanabe·Nov 26, 2019SaveLearn
Influence of Fermions on Vortices in SU(2)-QCDGauge fields control the dynamics of fermions, also a back reaction of fermions on the gauge field is expected. This back reaction is investigated within the vortex picture of the QCD vacuum. We show…Sedigheh Deldar, Zeinab Dehghan, Manfried Faber et al.·Nov 25, 2019SaveLearn
On the infinite gradient-flow for the domain-wall formulation of chiral lattice gauge theoriesWe examine the proposal by Grabowska and Kaplan (GK) to use the infinite gradient flow in the domain-wall formulation of chiral lattice gauge theories. We consider the case of Abelian theories in…Taichi Ago, Yoshio Kikukawa·Nov 25, 2019SaveLearn
Towards a composite Higgs and a partially composite top quarkWe have calculated quantities of interest to a theory of compositeness. The lattice model, approximating the candidate theory, is the SU(4) gauge theory coupled to fermions in two color…B. Svetitsky, V. Ayyar, T. DeGrand et al.·Nov 25, 2019SaveLearn
Free caloron gas in high temperature quenched QCDAcross the finite temperature transition to the quark-gluon plasma, the QCD topological susceptibility decreases sharply. Thus in the high temperature phase the remaining topological objects…Reka A. Vig, Tamas G. Kovacs·Nov 22, 2019SaveLearn
I=3/2 nucleon-pion scattering and the Delta(1232) resonance on 2+1 flavor CLS ensembles using the stochastic LapH methodCalculations of the elastic I=32 nucleon-pion scattering phase shifts on two lattice QCD ensembles with mπ=200MeV and 280MeV are presented. The ensembles both employ…Christian Walther Andersen, John Bulava, Ben Hörz et al.·Nov 22, 2019SaveLearn
Three pion spectrum in the I=3 channel from lattice QCDThree-body states are critical to the dynamics of many hadronic resonances. We show that lattice QCD calculations have reached a stage where these states can be accurately resolved. We perform a…Chris Culver, Maxim Mai, Ruairí Brett et al.·Nov 20, 2019SaveLearn