Static quark anti-quark interactions at non-zero temperature from lattice QCDWe study the interactions of a static quark antiquark pair at non-zero temperature using realistic 2+1 flavor lattice QCD calculations. The study consists of two parts: the first investigates the…Dibyendu Bala, Olaf Kaczmarek, Rasmus Larsen et al.·Oct 22, 2021SaveLearn
State mixing and masses of the π0, η and η mesons from nf=1+1+1 lattice QCD+QEDWe present a lattice analysis of the light pseudoscalar mesons with consideration for the mixing between the flavour-neutral states π0, η and η. We extract the masses and…Z. R. Kordov, R. Horsley, W. Kamleh et al.·Oct 22, 2021SaveLearn
Generalised parton distributions from the off-forward Compton amplitude in lattice QCDWe determine the properties of generalised parton distributions (GPDs) from a lattice QCD calculation of the off-forward Compton amplitude (OFCA). By extending the Feynman-Hellmann relation to…Alec Hannaford-Gunn, Kadir Utku Can, Roger Horsley et al.·Oct 22, 2021SaveLearn
Evaluation of SU(3) smearing on FPGA accelerator cardsRecent FPGA accelerator cards promise large acceleration factors for some specific computational tasks. In the context of Lattice QCD calculations, we investigate the possible gain of moving the…Salvatore Calì, Grzegorz Korcyl, Piotr Korcyl·Oct 21, 2021SaveLearn
Latent heat and pressure gap at the first-order deconfining phase transition of SU(3) Yang-Mills theory using the small flow-time expansion methodWe study the latent heat and the pressure gap between the hot and cold phases at the first-order transition temperature T=Tc of SU(3) Yang-Mills theory, using the small flow-time expansion…Kazuyuki Kanaya, Mizuki Shirogane, Shinji Ejiri et al.·Oct 21, 2021SaveLearn
Electromagnetic conductivity of quark-gluon plasma at non-zero baryon densityIn this preprint we present our results on the study of the electromagnetic conductivity in dense quark-gluon plasma obtained within lattice simulations with Nf = 2 + 1 dynamical quarks. We employ…N. Astrakhantsev, V. V. Braguta, M. Cardinali et al.·Oct 20, 2021SaveLearn
Isoscalar electromagnetic form factors of the nucleon in Nf = 2 + 1 lattice QCDWe present results for the isoscalar electromagnetic form factors of the nucleon computed on the Coordinated Lattice Simulations (CLS) ensembles with Nf = 2 + 1 flavors of…Dalibor Djukanovic, Georg von Hippel, Harvey B. Meyer et al.·Oct 20, 2021SaveLearn
Improved analysis of nucleon isovector charges and twist-2 matrix elements on CLS Nf=2+1 ensemblesPreliminary results are presented for nucleon isovector charges and twist-2 matrix elements which have been obtained employing an improved analysis strategy to deal with excited-state contamination.…Konstantin Ottnad, Dalibor Djukanovic, Tim Harris et al.·Oct 20, 2021SaveLearn
Approaching the Chiral and Continuum Limit of Large-N QCDWe present preliminary results from our calculation of the low energy constants (LECs) of the chiral effective theory for 3, 4 and 5 color QCD with Nf=2 dynamical fermion flavors. We simulate with…Evan Wickenden, Thomas DeGrand·Oct 19, 2021SaveLearn
Extraction of Bs D(*)s form factors from Nf=2 lattice QCDWe report on a two-flavour lattice QCD study of the Bs Ds and Bs D*s transitions parameterized, in the heavy quark limit, by the form factors G, and hA1, hA2 and…Benoît Blossier, Pierre-Henri Cahue, Jochen Heitger et al.·Oct 19, 2021SaveLearn
Localization properties of Dirac modes at the Roberge-Weiss phase transitionWe study the localization properties of the low-lying Dirac eigenmodes in QCD at imaginary chemical potential μI=π at temperatures above the Roberge-Weiss transition temperature $T…Marco Cardinali, Massimo D'Elia, Francesco Garosi et al.·Oct 19, 2021SaveLearn
Effective Z3 model for finite-density QCD with tensor networksThe tensor renormalization group is a promising numerical method used to study lattice statistical field theories. However, this approach is computationally expensive in 2+1 and 3+1 dimensions. Here…Jacques Bloch, Robert Lohmayer, Sophia Schweiss et al.·Oct 18, 2021SaveLearn
Relativistic-invariant formulation of the NREFT three-particle quantization conditionA three-particle quantization condition on the lattice is written down in a manifestly relativistic-invariant form by using a generalization of the non-relativistic effective field theory (NREFT)…Fabian Müller, Jin-Yi Pang, Akaki Rusetsky et al.·Oct 18, 2021SaveLearn
Breaking the gauge symmetry in lattice gauge-invariant modelsWe consider the role that gauge symmetry breaking terms play on the continuum limit of gauge theories in three dimensions. As a paradigmatic example we consider scalar electrodynamics in which Nf…Claudio Bonati, Andrea Pelissetto, Ettore Vicari·Oct 15, 2021SaveLearn
Dilaton chiral perturbation theory and applicationsWe review dilaton chiral perturbation theory (dChPT), the effective low-energy theory for the light sector of near-conformal, confining theories. dChPT provides a systematic expansion in both the…Maarten Golterman, Yigal Shamir·Oct 15, 2021SaveLearn
Finite-density QCD, PT symmetry, and exotic phasesWe study the phase structure of effective models of finite-density QCD using analytic and lattice simulation techniques developed for the study of non-Hermitian and PT-symmetric QFTs.…Moses A. Schindler, Stella T. Schindler, Michael C. Ogilvie·Oct 14, 2021SaveLearn
Progress in x-dependent partonic distributions from lattice QCDWe review the latest progress in lattice QCD calculations of the partonic structure of hadrons. This structure is, in particular, described in terms of x-dependent distributions, the simplest of…Krzysztof Cichy·Oct 14, 2021SaveLearn
Kaon decays and other hadronic processes in lattice QCDThis thesis deals with the study of properties and interactions of light mesons. Specifically, we focus on hadronic decay and scattering processes, which are dominated by effects of the strong…Fernando Romero-López·Oct 13, 2021SaveLearn
Analytic expansions of multi-hadron finite-volume energies: I. Two-particle statesWe derive analytic expansions for the finite-volume energies of weakly-interacting two-particle systems, using the general relations between scattering amplitudes and energies derived by L\"uscher…Dorota M. Grabowska, Maxwell T. Hansen·Oct 13, 2021SaveLearn
Recent Progress in Lattice Parton-Distribution CalculationsThe large-momentum effective theory (LaMET) framework has been widely used to determine the Bjorken-x dependence of parton distribution functions (PDFs) in lattice-QCD hadron-structure…Huey-Wen Lin·Oct 13, 2021SaveLearn
Tensor renormalization group and the volume independence in 2D U(N) and SU(N) gauge theoriesThe tensor renormalization group method is a promising approach to lattice field theories, which is free from the sign problem unlike standard Monte Carlo methods. One of the remaining issues is the…Mitsuaki Hirasawa, Akira Matsumoto, Jun Nishimura et al.·Oct 12, 2021SaveLearn
Clock model interpolation and symmetry breaking in O(2) modelsThe q-state clock model is a classical spin model that corresponds to the Ising model when q=2 and to the XY model when q∞. The integer-q clock model has been studied extensively…Leon Hostetler, Jin Zhang, Ryo Sakai et al.·Oct 11, 2021SaveLearn
Global symmetry breaking in gauge theories: the case of multiflavor scalar chromodynamicsUniversal features of continuous phase transitions can be investigated by studying the φ4 field theory with the corresponding global symmetry breaking pattern. When gauge symmetries are…Claudio Bonati, Andrea Pelissetto, Ettore Vicari·Oct 11, 2021SaveLearn
Excitations of isolated static charges in q=2 Abelian Higgs theoryIn this report, I discuss lattice Monte Carlo evidence of excitations of isolated static charges in q=2 Abelian Higgs theory. The localized excitations are excited states of the interacting fields…Kazue Matsuyama·Oct 11, 2021SaveLearn
A new method for a lattice calculation of ηc → 2γWe propose a direct method to calculate the decay width of a hadron decaying to two photons, which is conventionally obtained by an extrapolation for various off-shell form factors. The new method…Yu Meng·Oct 11, 2021SaveLearn