Interglueball potential in SU(N) lattice gauge theoryWe report on our calculation of the interglueball potentials in SU(2), SU(3), and SU(4) lattice Yang-Mills theories using the indirect (so-called HAL QCD) method. We use the cluster decomposition…Nodoka Yamanaka, Hideaki Iida, Atsushi Nakamura et al.·Nov 8, 2019SaveLearn
Electromagnetic contribution to Σ-Λ mixing using lattice QCD+QEDMixing in the Σ0-Λ0 system is a direct consequence of broken isospin symmetry and is a measure of both isospin-symmetry breaking as well as general SU(3)-flavour symmetry breaking. In this work…Z. R. Kordov, R. Horsley, Y. Nakamura et al.·Nov 6, 2019SaveLearn
Heavy semileptonics with a fully relativistic mixed actionThe first phase of a heavy quark program based on twisted mass valence quarks has been presented at last years's lattice conference. The CLS Nf=2+1 ensembles were used for their fine lattice…Julien Frison, Andrea Bussone, Gregorio Herdoíza et al.·Nov 6, 2019SaveLearn
Full O(a) improvement of EQCDEQCD is a 3D bosonic theory containing SU(3) and an adjoint scalar, which efficiently describes the infrared, nonperturbative sector of hot QCD and which is highly amenable to lattice study. We…Guy D. Moore, Niels Schlusser·Nov 6, 2019SaveLearn
Meson spectrum in SU(N) gauge theories with quarks in higher representations: A check of Casimir scaling hypothesisGauge theories with gauge group SU(N) and quarks belonging to arbitrary representations of SU(N) form a rich landscape of QCD-like theories, whose study can shed new light on the properties of…F. Buisseret, C. Semay·Nov 5, 2019SaveLearn
Exploring S-Wave Threshold Effects in QCD: A Heavy-Light ApproachQCD exhibits complex dynamics near S-wave two-body thresholds. For light mesons, we see this in the failure of quark models to explain the f0(500) and K0*(700) masses. For charmonium, an…Estia Eichten, Ciaran Hughes·Nov 5, 2019SaveLearn
Tensor network formulation of the massless Schwinger modelWe construct a tensor network representation of the partition function for the massless Schwinger model on a two dimensional lattice using staggered fermions. The tensor network representation allows…Nouman Butt, Simon Catterall, Yannick Meurice et al.·Nov 4, 2019SaveLearn
Hyperons in thermal QCD from the latticeWe study the spectrum of light baryons and hyperons as a function of temperature using lattice gauge theory methods. We find that masses of positive parity states are temperature independent, within…Gert Aarts, Chris Allton, Davide de Boni et al.·Nov 4, 2019SaveLearn
Three particles on the latticeI give a review of existing frameworks, which are designed to analyse lattice data in the three-particle sector. A particular emphasis is laid on the foundations of the theory, where the separation…Akaki Rusetsky·Nov 4, 2019SaveLearn
Strange nucleon form factors and isoscalar charges with Nf=2+1 O(a)-improved Wilson fermionsWe report on our calculation of the strange contribution to the vector and axial vector form factors. The strange charge radii, magnetic moment, and axial charge are extracted by model independent…Dalibor Djukanovic, Harvey Meyer, Konstantin Ottnad et al.·Nov 4, 2019SaveLearn
Nonperturbative renormalization of staple-shaped Wilson line operators in lattice QCDQuark bilinear operators with staple-shaped Wilson lines are used to study transverse-momentum-dependent parton distribution functions (TMDPDFs) from lattice quantum chromodynamics (QCD). Here, the…Phiala Shanahan, Michael L. Wagman, Yong Zhao·Nov 3, 2019SaveLearn
Non-perturbative renormalization in QCD+QED and its application to weak decaysWe present a novel strategy to renormalize lattice operators in QCD+QED, including first order QED corrections to the non-perturbative evaluation of QCD renormalization constants. Our procedure takes…M. Di Carlo, G. Martinelli, D. Giusti et al.·Nov 3, 2019SaveLearn
Confinement/deconfinement phase transition and dual Meissner effect in SU(3) Yang-Mills theoryWe investigate the confinement-deconfinement phase transition at finite temperature of the SU(3) Yang-Mills(YM) theory on the lattice from a viewpoint of the dual superconductor picture based on the…Akihiro Shibata, Kei-Ichi Kondo, Seikou Kato·Nov 3, 2019SaveLearn
Studies of Conformal Behavior in Strongly Interacting Quantum Field TheoriesIn this dissertation, we present work towards characterizing various conformal and nearly conformal quantum field theories nonperturbatively using a combination of numerical and analytical…Andrew David Gasbarro·Nov 1, 2019SaveLearn
Meson spectrum of Sp(4) lattice gauge theory with two fundamental Dirac fermionsWe calculate the meson spectrum of the Sp(4) lattice gauge theory coupled to two fundamental flavours of dynamical Dirac fermions. We focus on some of the lightest (flavoured) spin-0 and spin-1…Ed Bennett, Deog Ki Hong, Jong-Wan Lee et al.·Nov 1, 2019SaveLearn
Radius of convergence in lattice QCD at finite μB with rooted staggered fermionsIn typical statistical mechanical systems the grand canonical partition function at finite volume is proportional to a polynomial of the fugacity eμ/T. The zero of this Lee-Yang polynomial…Matteo Giordano, Kornel Kapas, Sandor D. Katz et al.·Oct 31, 2019SaveLearn
Off-diagonal correlators of conserved charges from lattice QCD and how to relate them to experimentLike fluctuations, non-diagonal correlators of conserved charges provide a tool for the study of chemical freeze-out in heavy ion collisions. They can be calculated in thermal equilibrium using…Rene Bellwied, Szabolcs Borsanyi, Zoltan Fodor et al.·Oct 31, 2019SaveLearn
Pion in a uniform background magnetic field with clover fermionsBackground field methods provide an important nonperturbative formalism for the determination of hadronic properties which are complementary to matrix-element calculations. However, new challenges…Ryan Bignell, Waseem Kamleh, Derek Leinweber·Oct 31, 2019SaveLearn
Role of chiral symmetry in the nucleon excitation spectrumThe origin of the low-lying nature of the N*(1440), or Roper resonance, has been the subject of significant interest for many years, including several investigations using lattice QCD. The majority…Adam Virgili, Waseem Kamleh, Derek Leinweber·Oct 30, 2019SaveLearn
Resonance study of SU(2) model with 2 fundamental flavours of fermionsComposite Higgs models are promising candidate models to address the long-standing naturalness problem in the Standard Model. Among them, the most minimal one is the SU(2) with 2 flavours of fermions…Tadeusz Janowski, Vincent Drach, Sasa Prelovsek·Oct 30, 2019SaveLearn
Quasi-PDFs with twisted mass fermionsWe discuss the recent progress in extracting partonic functions from the quasi-distribution approach, using twisted mass fermions. This concerns, among others, the investigation of several sources of…Constantia Alexandrou, Krzysztof Cichy, Martha Constantinou et al.·Oct 29, 2019SaveLearn
Nucleon isovector charges from physical mass domain-wall QCDSystematics in nucleon isovector vector, gV, and axialvector, gA, charges calculated on a 2+1-flavor dynamical domain-wall-fermions (DWF) ensemble at physical mass jointly generated by…Shigemi Ohta·Oct 29, 2019SaveLearn
Study of 2+1 flavor finite-temperature QCD using improved Wilson quarks at the physical point with the gradient flowWe study thermodynamic properties of 2+1 flavor QCD applying the Small Flow-time eXpansion (SFtX) method based on the gradient flow. The method provides us with a general way to compute correctly…Kazuyuki Kanaya, Atsushi Baba, Asobu Suzuki et al.·Oct 29, 2019SaveLearn
Resurgence and fractional instanton of the SU(3) gauge theory in weak coupling regimeAccording to recent studies on resurgence scenario of quantum systems, some topological objects with fractional charges play an important role to see the resurgence structure. In this talk, we report…Etsuko Itou·Oct 28, 2019SaveLearn
Three Photon Decay of J/ from Lattice QCDThree photon decay rate of J/ is studied using two Nf=2 twisted mass gauge ensembles with lattice spacings a 0.085 fm (I) and 0.067 fm(II). Using a new method, only the correlation…Yu Meng, Chuan Liu, Ke-Long Zhang·Oct 25, 2019SaveLearn