Computation of QCD meson screening masses at high temperatureWe compute flavor non-singlet meson screening masses in the chiral limit of QCD with Nf=3 quarks. The calculation is carried out at 12 temperatures from T≈ 1 GeV up to the electroweak…Davide Laudicina, Mattia Dalla Brida, Leonardo Giusti et al.·Dec 13, 2021SaveLearn
Deconfinement critical point of heavy quark effective lattice theoriesEffective three-dimensional Polyakov loop theories derived from QCD by strong coupling and hopping expansions are valid for heavy quarks and can also be applied to finite chemical potential μ,…Jangho Kim, Anh Quang Pham, Owe Philipsen·Dec 13, 2021SaveLearn
Symmetry, Confinement, and the Higgs PhaseWe show that the Higgs and confinement phases of a gauge Higgs theory, with the Higgs field in the fundamental representation of the gauge group, are distinguished both by a broken or unbroken…Jeff Greensite, Kazue Matsuyama·Dec 13, 2021SaveLearn
Advances in lattice hadron physics calculations using the gradient flowLattice calculations of hadronic observables are aggravated by short-distance fluctuations. The gradient flow, which can be viewed as a particular realisation of the coarse-graining step of momentum…K. U. Can, R. Horsley, Y. Nakamura et al.·Dec 12, 2021SaveLearn
Scope and convergence of the hopping parameter expansion in finite temperature QCD with heavy quarks around the critical pointHopping parameter expansion is a useful tool to investigate heavy dynamical quarks in lattice QCD, while the range of its applicability has been sometimes questioned. We study the convergence and the…Naoki Wakabayashi, Shinji Ejiri, Kazuyuki Kanaya et al.·Dec 12, 2021SaveLearn
Excitations of static isolated fermions in the Higgs phase of gauge Higgs theoryA spectrum of localized excitations of isolated static fermions has been discovered in several different gauge Higgs theories. In lattice numerical simulations, we show that the charged elementary…Kazue Matsuyama, Jeff Greensite·Dec 12, 2021SaveLearn
Duals of lattice Abelian models with static determinant at finite densityDual formulations of Abelian U(1) and Z(N) LGT with a static fermion determinant are constructed at finite temperatures and non-zero chemical potential. The dual form is valid for a broad class of…O. Borisenko, V. Chelnokov, S. Voloshyn et al.·Dec 11, 2021SaveLearn
First Lattice QCD Study of Proton Twist-3 GPDsWe present first results on selected twist-3 quark GPDs using the quasi-distribution method. This approach relates lattice QCD data and light-cone distribution functions using Large Momentum…Shohini Bhattacharya, Krzysztof Cichy, Martha Constantinou et al.·Dec 10, 2021SaveLearn
Localization at the quenched SU(3) phase transitionIt is known that the deconfining transition of QCD is accompanied by the appearance of localized eigenmodes at the low end of the Dirac spectrum. In the quenched case localization appears exactly at…Tamas G. Kovacs·Dec 10, 2021SaveLearn
Non-perturbative thermal QCD at all temperatures: the case of mesonic screening massesWe present a strategy based on the step-scaling technique to study non-perturbatively thermal QCD up to very high temperatures. As a first concrete application, we compute the flavour non-singlet…Mattia Dalla Brida, Leonardo Giusti, Tim Harris et al.·Dec 10, 2021SaveLearn
Tensor Charges and their Impact on Physics Beyond the Standard ModelThe nucleon tensor charge, gT, is an important quantity in the search for beyond the Standard Model tensor interactions in neutron and nuclear β-decays as well as the contribution of the…R. E. Smail, R. Horsley, Y. Nakamura et al.·Dec 10, 2021SaveLearn
Comparison of topology changing update algorithmsIn modern lattice simulations, conventional update algorithms do not allow for tunneling between topological sectors at fine lattice spacings. We compare the viability of multiple less commonly used…Timo Eichhorn, Christian Hoelbling·Dec 9, 2021SaveLearn
Three-particle scattering amplitudes from lattice QCDLattice QCD already offers the possibility of extracting three-hadron scattering quantities from first principles. In the last few years, significant progress has been achieved in developing and…Fernando Romero-López·Dec 9, 2021SaveLearn
Lattice field computations via recursive numerical integrationWe investigate the application of efficient recursive numerical integration strategies to models in lattice gauge theory from quantum field theory. Given the coupling structure of the physics…Tobias Hartung, Karl Jansen, Frances Y. Kuo et al.·Dec 9, 2021SaveLearn
Finite volume analysis on systematics of the derivative expansion in HAL QCD methodWe study the convergence of the derivative expansion in HAL QCD method from the finite volume analysis. Employing the (2+1)-flavor lattice QCD data obtained at nearly physical light quark masses…Takumi Doi, Yan Lyu, Hui Tong et al.·Dec 9, 2021SaveLearn
Toward a resolution of the NN controversyLattice QCD calculations of two-nucleon interactions have been underway for about a decade, but still haven't reached the pion mass regime necessary for matching onto effective field theories and…Amy Nicholson, Evan Berkowitz, John Bulava et al.·Dec 8, 2021SaveLearn
Riemannian manifold hybrid Monte Carlo in lattice QCDCritical slowing down presents a critical obstacle to lattice QCD calculation at the smaller lattice spacings made possible by Exascale computers. Inspired by the concept of Fourier acceleration, we…Tuan Nguyen, Peter Boyle, Norman Christ et al.·Dec 8, 2021SaveLearn
Correlating confinement to topological fluctuations near the crossover transition in QCDWe show the existence of strong (anti)correlations between the topological hot spots and the local values of the trace of the Polyakov loop in 2+1 flavor QCD with physical quark mass, in the…Rasmus N. Larsen, Sayantan Sharma, Edward Shuryak·Dec 8, 2021SaveLearn
Patterns of flavour symmetry breaking in hadron matrix elements involving u, d and s quarksUsing an SU(3)-flavour symmetry breaking expansion between the strange and light quark masses, we determine how this constrains the extrapolation of baryon octet matrix elements and form factors. In…J. M. Bickerton, A. N. Cooke, R. Horsley et al.·Dec 8, 2021SaveLearn
Search for continuous phase transitions in 5D pure SU(2) lattice gauge theoryThe Renormalization Group (RG) is one of the central and modern techniques in quantum field theory. Indeed, quantum field theories can be understood as flows between fixed points of the RG flow,…José Matos·Dec 8, 2021SaveLearn
A comparison of spectral reconstruction methods applied to non-zero temperature NRQCD meson correlation functionsWe present results from the fastsum collaboration's programme to determine the spectrum of the bottomonium system as a function of temperature. Three different methods of extracting spectral…Thomas Spriggs, Gert Aarts, Chris Allton et al.·Dec 8, 2021SaveLearn
The upper right corner of the Columbia plot with staggered fermionsQCD with heavy dynamical quarks exhibits a first order thermal transition which is driven by the spontaneous breaking of the global Z3 center symmetry. Decreasing the quark masses…Ruben Kara, Szabolcs Borsanyi, Zoltan Fodor et al.·Dec 8, 2021SaveLearn
Elastic π-N scattering in the I=3/2 channelWe present our study of π-N scattering in the iso-spin I=3/2 channel for the first time at the physical point. The calculation is performed using Nf=2+1+1 flavors of twisted mass fermions…Constantia Alexandrou, Kyriakos Hadjiannakou, Giannis Koutsou et al.·Dec 8, 2021SaveLearn
A lattice QCD determination of the neutron electric dipole moment at the physical pointResults are presented on the neutron electric dipole moment using an ensemble of Nf=2+1+1 twisted mass clover-improved fermions with lattice spacing of a 0.08 fm and physical pion mass…Constantia Alexandrou, Andreas Athenodorou, Kyriakos Hadjiannakou et al.·Dec 7, 2021SaveLearn
Pion and kaon form factors using twisted-mass fermionsWe present a calculation of the scalar, vector and tensor pion and kaon form factors using one ensemble of two degenerate light, a strange and a charm quark (Nf=2+1+1) of maximally twisted mass…Constantia Alexandrou, Simone Bacchio, Ian Cloët et al.·Dec 7, 2021SaveLearn