Two-loop renormalization and mixing of gluon and quark energy-momentum tensor operatorsIn this paper, we present one- and two-loop results for the renormalization of the gluon and quark gauge-invariant operators which appear in the definition of the QCD energy-momentum tensor, in…George Panagopoulos, Haralambos Panagopoulos, Gregoris Spanoudes·Oct 5, 2020SaveLearn
Low-energy constant L10 in a two-representation lattice theoryWe calculate the low-energy constant L10 in a two-representation SU(4) lattice gauge theory that is close to a composite-Higgs model. From this we obtain the contribution of the new strong…Maarten Golterman, William I. Jay, Ethan T. Neil et al.·Oct 5, 2020SaveLearn
Color Screening in Quantum ChromodynamicsWe review lattice studies of the color screening in the quark-gluon plasma. We put the phenomena related to the color screening into the context of similar aspects of other physical systems…Alexei Bazavov, Johannes Heinrich Weber·Oct 5, 2020SaveLearn
The negative-parity spin-1/2 baryon spectrum from lattice QCD and effective theoryThe spectrum of the negative-parity spin-1/2 baryons is studied using lattice QCD and hadronic effective theory in a unitarized coupled-channel framework. A direct comparison between the…Rafael Pavao, Philipp Gubler, Pedro Fernandez-Soler et al.·Oct 3, 2020SaveLearn
Towards fully non-perturbative computation of inelastic N scattering cross sections from lattice QCDWe propose a fully non-perturbative method to compute inelastic lepton-nucleon ( N) scattering cross sections using lattice QCD. The method is applicable even at low energies, such as the…Hidenori Fukaya, Shoji Hashimoto, Takashi Kaneko et al.·Oct 3, 2020SaveLearn
N=1 Super-Yang-Mills theory on the lattice with twisted mass fermionsSuper-Yang-Mills theory (SYM) is a central building block for supersymmetric extensions of the Standard Model of particle physics. Whereas the weakly coupled subsector of the latter can be treated…Marc Steinhauser, André Sternbeck, Björn Wellegehausen et al.·Oct 2, 2020SaveLearn
Apparent convergence of Pad\'e approximants for the crossover line in finite density QCDWe propose a novel Bayesian method to analytically continue observables to real baryochemical potential μB in finite density QCD. Taylor coefficients at μB=0 and data at imaginary chemical…Attila Pásztor, Zsolt Szép, Gergely Markó·Oct 1, 2020SaveLearn
Adding machine learning within Hamiltonians: Renormalization group transformations, symmetry breaking and restorationWe present a physical interpretation of machine learning functions, opening up the possibility to control properties of statistical systems via the inclusion of these functions in Hamiltonians. In…Dimitrios Bachtis, Gert Aarts, Biagio Lucini·Sep 30, 2020SaveLearn
Nonperturbative infrared finiteness in super-renormalisable scalar quantum field theoryWe present a study of the IR behaviour of a three-dimensional super-renormalisable quantum field theory (QFT) consisting of a scalar field in the adjoint of SU(N) with a 4 interaction. A…Guido Cossu, Luigi Del Debbio, Andreas Juttner et al.·Sep 30, 2020SaveLearn
Renormalization of the energy-momentum tensor in three-dimensional scalar SU(N) theories using the Wilson flowA nonperturbative determination of the energy-momentum tensor is essential for understanding the physics of strongly coupled systems. The ability of the Wilson flow to eliminate divergent contact…Luigi Del Debbio, Elizabeth Dobson, Andreas Jüttner et al.·Sep 30, 2020SaveLearn
θ-dependence in the small-N limit of 2d CPN-1 modelsWe present a systematic numerical study of θ-dependence around θ=0 in the small-N limit of 2d CPN-1 models, aimed at clarifying the possible presence of a divergent topological…Mario Berni, Claudio Bonanno, Massimo D'Elia·Sep 29, 2020SaveLearn
Deconfinement critical point of lattice QCD with N f=2 Wilson fermionsThe SU(3) pure gauge theory exhibits a first-order thermal deconfinement transition due to spontaneous breaking of its global Z3 center symmetry. When heavy dynamical quarks are added,…Francesca Cuteri, Owe Philipsen, Alena Schön et al.·Sep 29, 2020SaveLearn
Cold Atom Quantum Simulator for String and Hadron Dynamics in Non-Abelian Lattice Gauge TheoryWe propose an analog quantum simulator for simulating real time dynamics of (1+1)-d non-Abelian gauge theory well within the existing capacity of ultracold atom experiments. The scheme calls for…Raka Dasgupta, Indrakshi Raychowdhury·Sep 29, 2020SaveLearn
Explorations beyond dilaton chiral perturbation theory in the eight-flavor SU(3) gauge theoryWe continue our study of spectroscopy data for the SU(3) gauge theory with eight fundamental fermions, motivated by the effective field theory framework of dilaton chiral perturbation theory (dChPT).…Maarten Golterman, Yigal Shamir·Sep 29, 2020SaveLearn
Heavy quark momentum diffusion from the lattice using gradient flowWe apply the gradient flow on a color-electric two-point function that encodes the heavy quark momentum diffusion coefficient. The simulations are done on fine isotropic lattices in the quenched…Luis Altenkort, Alexander M. Eller, Olaf Kaczmarek et al.·Sep 28, 2020SaveLearn
Ising model as a U(1) Lattice Gauge Theory with a θ-termWe discuss a gauged XY model a θ-term on an arbitrary lattice in 1+1 dimensions, and show that the theory reduces exactly to the 2d Ising model on the dual lattice in the limit of the strong…Tin Sulejmanpasic·Sep 28, 2020SaveLearn
Flavor decomposition for the proton helicity parton distribution functionsWe present, for the first time, an ab initio calculation of the individual up, down and strange quark helicity parton distribution functions for the proton. The calculation is performed…C. Alexandrou, M. Constantinou, K. Hadjiyiannakou et al.·Sep 28, 2020SaveLearn
Finite-volume energy spectrum of the K-K-K- systemThe dynamics of multi-kaon systems are of relevance for several areas of nuclear physics. However, even the simplest systems, two and three kaons, are hard to prepare and study experimentally. Here…Andrei Alexandru, Ruairí Brett, Chris Culver et al.·Sep 25, 2020SaveLearn
Low-energy Scattering and Effective Interactions of Two Baryons at mπ 450 MeV from Lattice Quantum ChromodynamicsThe interactions between two octet baryons are studied at low energies using lattice QCD (LQCD) with larger-than-physical quark masses corresponding to a pion mass of mπ 450 MeV and a kaon…Marc Illa, Silas R. Beane, Emmanuel Chang et al.·Sep 25, 2020SaveLearn
Visualisations of Centre VorticesThe centre vortex structure of the vacuum is visualised through the use of novel 3D visualisation techniques. These visualisations allow for a hands-on examination of the centre-vortex matter present…James C. Biddle, Waseem Kamleh, Derek B. Leinweber·Sep 25, 2020SaveLearn
Emergent Structure in QCDThe structure of the SU(3) gauge-field vacuum is explored through visualisations of centre vortices and topological charge density. Stereoscopic visualisations highlight interesting features of the…James C. Biddle, Waseem Kamleh, Derek B. Leinweber·Sep 25, 2020SaveLearn
Two-nucleon S-wave interactions at the SU(3) flavor-symmetric point with mud ms phys: a first lattice QCD calculation with the stochastic Laplacian Heaviside methodWe report on the first application of the stochastic Laplacian Heaviside method for computing multi-particle interactions with lattice QCD to the two-nucleon system. Like the Laplacian Heaviside…Ben Hörz, Dean Howarth, Enrico Rinaldi et al.·Sep 24, 2020SaveLearn
Search for Efficient Formulations for Hamiltonian Simulation of non-Abelian Lattice Gauge TheoriesHamiltonian formulation of lattice gauge theories (LGTs) is the most natural framework for the purpose of quantum simulation, an area of research that is growing with advances in quantum-computing…Zohreh Davoudi, Indrakshi Raychowdhury, Andrew Shaw·Sep 24, 2020SaveLearn
Restoration of chiral symmetry in cold and dense Nambu--Jona-Lasinio model with tensor renormalization groupWe analyze the chiral phase transition of the Nambu--Jona-Lasinio model in the cold and dense region on the lattice developing the Grassmann version of the anisotropic tensor renormalization group…Shinichiro Akiyama, Yoshinobu Kuramashi, Takumi Yamashita et al.·Sep 24, 2020SaveLearn
Machine-learning physics from unphysics: Finding deconfinement temperature in lattice Yang-Mills theories from outside the scaling windowWe study the machine learning techniques applied to the lattice gauge theory's critical behavior, particularly to the confinement/deconfinement phase transition in the SU(2) and SU(3) gauge theories.…D. L. Boyda, M. N. Chernodub, N. V. Gerasimeniuk et al.·Sep 23, 2020SaveLearn