Accessing proton GPDs in asymmetric frames: Numerical implementationIn this work, we present a numerical investigation of a novel Lorentz-covariant parametrization to extract x-dependent GPDs using off-forward matrix elements of momentum-boosted hadrons coupled to…Martha Constantinou, Shohini Bhattacharya, Krzysztof Cichy et al.·Dec 19, 2022SaveLearn
LapH interpolating fields with open boundary conditionsThe stochastic Laplacian Heaviside (LapH) method has proven to be successful in hadronic calculations. In this work, with charm-light spectroscopy in mind, we set up and optimise the LapH procedure…Michele Della Morte, Olmo Francesconi, Justus Tobias Tsang·Dec 19, 2022SaveLearn
Monopole and instanton effects on connected and disconnected correlations for scalar densityThis study investigates the effects on the connected and disconnected correlations for the scalar density that are induced by created monopoles and instantons in the QCD vacuum. To reveal the…Masayasu Hasegawa·Dec 19, 2022SaveLearn
Hamiltonian limit of lattice QED in 2+1 dimensionsThe Hamiltonian limit of lattice gauge theories can be found by extrapolating the results of anisotropic lattice computations, i.e., computations using lattice actions with different temporal and…L. Funcke, C. F. Groß, K. Jansen et al.·Dec 19, 2022SaveLearn
Asymptotic lattice spacing dependence of spectral quantities in lattice QCD with Wilson or Ginsparg-Wilson quarksOne major systematic uncertainty of lattice QCD results is due to the continuum extrapolation. For an asymptotically free theory like QCD one finds corrections of the form…Nikolai Husung·Dec 19, 2022SaveLearn
Progress on the exploratory calculation of the rare Hyperon decay + p + -The rare Hyperon decay + p + - is an s d flavour changing neutral current process, which is highly suppressed within the Standard Model, and is therefore sensitive to new…Felix Erben, Vera Gülpers, Maxwell T. Hansen et al.·Dec 19, 2022SaveLearn
Towards the phase diagram of cold and dense heavy QCDThe thermodynamics of QCD with sufficiently heavy dynamical quarks can be described by a three-dimensional Polyakov loop effective theory, obtained after a truncated character and hopping expansion.…Amine Chabane, Owe Philipsen·Dec 19, 2022SaveLearn
Nucleon-nucleon scattering from distillationWe report an ongoing analysis of nucleon-nucleon scattering based on finite-volume spectroscopy. The calculation is performed using the distillation method on eight lattice ensembles at the…Jeremy R. Green, Andrew D. Hanlon, Parikshit M. Junnarkar et al.·Dec 19, 2022SaveLearn
Nf = 1+2+1 QCD+QED simulations with C boundary conditionsWe give an update on the ongoing effort of the RC collaboration to generate fully dynamical QCD+QED configurations with C boundary conditions using the openQ code. The…Anian Altherr, Lucius Bushnaq, Isabel Campos et al.·Dec 19, 2022SaveLearn
Finite-Size Effects of the HVP Contribution to the Muon g-2 with C Boundary ConditionsThe muon g-2 is a compelling quantity due to the current standing tensions among the experimental average, data-driven theoretical results, and lattice results. Matching the final target accuracy…Sofie Martins, Agostino Patella·Dec 19, 2022SaveLearn
Translating topological benefits in very cold lattice simulationsMaster-field simulations offer an approach to lattice QCD in which calculations are performed on a small number of large-volume gauge-field configurations. The latter is advantageous for simulations…Mattia Bruno, Marco Cè, Anthony Francis et al.·Dec 19, 2022SaveLearn
Digitizing SU(2) Gauge Fields and What to Look Out for When Doing SoWith the long term perspective of using quantum computers and tensor networks for lattice gauge theory simulations, an efficient method of digitizing gauge group elements is needed. We thus present…Tobias Hartung, Timo Jakobs, Karl Jansen et al.·Dec 19, 2022SaveLearn
Position-Space Renormalisation of the Energy-Momentum TensorThere is increasing interest in the study of nonperturbative aspects of three-dimensional quantum field theories (QFT). They appear as holographic dual to theories of (strongly coupled) gravity. For…Henrique Bergallo Rocha, Luigi Del Debbio, Andreas Jüttner et al.·Dec 19, 2022SaveLearn
Optimized meson operators for charmonium spectroscopy and mixing with glueballsOptimized meson operators in the distillation framework are used to study the charmonium spectrum in two ensembles with two heavy dynamical quarks at half the physical charm quark mass but different…Juan Andrés Urrea-Niño, Francesco Knechtli, Tomasz Korzec et al.·Dec 19, 2022SaveLearn
Charm baryons at finite temperature on anisotropic latticesSingly, doubly and triply charmed baryons are investigated at multiple temperatures using the anisotropic FASTSUM 'Generation 2L' ensembles. We discuss the temperature dependence of these baryons'…Ryan Bignell, Gert Aarts, Chris Allton et al.·Dec 19, 2022SaveLearn
Time windows of the muon HVP from twisted-mass lattice QCDWe present a lattice determination of the leading-order hadronic vacuum polarization (HVP) contribution to the muon anomalous magnetic moment, aμ HVP, in the so-called short and…C. Alexandrou, S. Bacchio, P. Dimopoulos et al.·Dec 19, 2022SaveLearn
Lattice Study of Spectator Effects in b-hadron DecaysThe Heavy Quark Expansion (HQE) gives an expansion of inclusive decay rates of b-hadrons as a simultaneous series in αs and 1/mb, in terms of perturbatively defined coefficients and…Joshua Lin, William Detmold, Stefan Meinel·Dec 19, 2022SaveLearn
Progress applying density of states for gravitational wavesMany models of composite dark matter feature a first-order confinement transition in the early Universe, which would produce a stochastic background of gravitational waves that will be searched for…Felix Springer, David Schaich·Dec 19, 2022SaveLearn
The Compton amplitude and nucleon structure functionsStructure functions are the essential objects for understanding the deep inelastic scattering processes, providing valuable insight into the partonic structure of hadrons. A direct calculation of the…K. Utku Can·Dec 19, 2022SaveLearn
Update on SU(2) with one adjoint Dirac flavorWe present an update of our ongoing study of the SU(2) gauge theory with one flavor of Dirac fermion in the adjoint representation. Compared to our previous results we now have data at larger lattice…Ed Bennett, Andreas Athenodorou, Georg Bergner et al.·Dec 18, 2022SaveLearn
Equation of state and speed of sound of (2+1)-flavor QCD in strangeness-neutral matter at non-vanishing net baryon-number densityWe update results on the QCD equation of state in (2+1)-flavor QCD with non-zero conserved charge chemical potentials obtained from an eighth-order Taylor series. We present results for basic bulk…D. Bollweg, D. A. Clarke, J. Goswami et al.·Dec 18, 2022SaveLearn
A lattice QCD study of the B ππ transitionVub is the smallest and least known of all CKM matrix elements; the community currently determines its magnitude primarily through the exclusive process Bπ. Here we present…Luka Leskovec, Stefan Meinel, Marcus Petschlies et al.·Dec 17, 2022SaveLearn
Topological features of the deconfinement transitionThe first order transition between the confining and the center symmetry breaking phases of the SU(3) Yang-Mills theory is marked by discontinuities in various thermodynamics functions, such as the…Sz. Borsanyi, Z. Fodor, D. A. Godzieba et al.·Dec 16, 2022SaveLearn
Stabilizing complex Langevin for real-time gauge theories with an anisotropic kernelThe complex Langevin (CL) method is a promising approach to overcome the sign problem that occurs in real-time formulations of quantum field theories. Using the Schwinger-Keldysh formalism, we study…Kirill Boguslavski, Paul Hotzy, David I. Müller·Dec 16, 2022SaveLearn
Constructing static quark-anti-quark creation operators from Laplacian eigenmodesWe investigate static quark anti-quark operators based on trial states formed from eigenvectors of the covariant three-dimensional lattice Laplace operator. We test the method by computing the static…Roman Höllwieser, Francesco Knechtli, Tomasz Korzec et al.·Dec 16, 2022SaveLearn