An alternative idea about the source of baryon asymmetry in the UniverseThe paper proposes an alternative scenario for the emergence of baryon asymmetry in the Universe. This scenario is realized in the lattice gravity model associated with the Dirac field as follows. At…S. N. Vergeles·Sep 27, 2024SaveLearn
Generalized HMC using Nambu mechanics for lattice QCDI describe a generalization of the hybrid Monte Carlo (HMC) algorithm in which the molecular dynamics (MD) steps utilize Nambu generalized Hamiltonian dynamics. Characterized by multiple Hamiltonian…Erik Lundstrum·Sep 27, 2024SaveLearn
Gradient Flow Renormalisation for Meson Mixing and LifetimesFermionic gradient flow in combination with the short-flow-time expansion provides a computational method where the renormalisation of hadronic matrix elements on the lattice can be simplified to…Matthew Black, Robert Harlander, Fabian Lange et al.·Sep 27, 2024SaveLearn
Sampling SU(3) pure gauge theory with Stochastic Normalizing FlowsNon-equilibrium Monte Carlo simulations based on Jarzynski's equality are a well-understood method to compute differences in free energy and also to sample from a target probability distribution…Andrea Bulgarelli, Elia Cellini, Alessandro Nada·Sep 27, 2024SaveLearn
Lattice QCD calculation of the η and η meson masses at the physical point using rooted staggered fermionsWe present a lattice calculation of the η and η meson masses at the physical point and in the continuum limit, based on Nf = 2+1+1 flavors of rooted staggered quarks. Our…Willem E. A. Verplanke, Zoltan Fodor, Antoine Gerardin et al.·Sep 27, 2024SaveLearn
A neural network study of the phase transitions of the two-dimensional antiferromagnetic q-state Potts models on the square latticeThe critical phenomena of the two-dimensional antiferromagnetic q-state Potts model on the square lattice with q=2,3,4 are investigated using the techniques of neural networks (NN). In…Yuan-Heng Tseng, Fu-Jiun Jiang·Sep 26, 2024SaveLearn
A Variational Approach to Quantum Field TheoryIn strongly coupled field theories, perturbation theory cannot be employed to study the low-energy spectrum. Thus, non-perturbative techniques are required. We employ the variational method, a…M. Rovira, A. Parreño, R. J. Perry·Sep 26, 2024SaveLearn
Localized Chiral Magnetic Effect in equilibrium QCDWe study the impact of a non-uniform magnetic background field on the Chiral Magnetic Effect (CME) in equilibrium QCD using lattice simulations with 2+1 flavors of dynamical staggered quarks at the…B. B. Brandt, G. Endrődi, E. Garnacho-Velasco et al.·Sep 26, 2024SaveLearn
Quantum circuit for Z3 lattice gauge theory at nonzero baryon densityZ3 lattice gauge theory is the simplest discrete gauge theory with three-quark bound states, i.e., baryons. Since it has a finite-dimensional Hilbert space, it can be used for testing…Yoshimasa Hidaka, Arata Yamamoto·Sep 25, 2024SaveLearn
Polarized and unpolarized gluon PDFs: generative machine learning applications for lattice QCD matrix elements at short distance and large momentumLattice quantum chromodynamics (QCD) calculations share a defining challenge by requiring a small finite range of spatial separation z between quark/gluon bilinears for controllable power…Talal Ahmed Chowdhury, Taku Izubuchi, Methun Kamruzzaman et al.·Sep 25, 2024SaveLearn
Finite- and infinite-volume study of DDπ scatteringWe develop a comprehensive framework for extracting the pole position and properties of the doubly-charmed tetraquark T cc+(3875) from lattice QCD data using the relativistic three-particle…Sebastian M. Dawid, Fernando Romero-López, Stephen R. Sharpe·Sep 25, 2024SaveLearn
Parton Distribution Functions in the Schwinger Model with Tensor NetworksParton distribution functions (PDFs) describe universal properties of bound states and allow us to calculate scattering amplitudes in processes with large momentum transfer. Calculating PDFs involves…Mari Carmen Bañuls, Krzysztof Cichy, C. -J. David Lin et al.·Sep 25, 2024SaveLearn
Numerical determination of the width and shape of the effective string using Stochastic Normalizing FlowsFlow-based architectures have recently proved to be an efficient tool for numerical simulations of Effective String Theories regularized on the lattice that otherwise cannot be efficiently sampled by…Michele Caselle, Elia Cellini, Alessandro Nada·Sep 24, 2024SaveLearn
Kosterlitz-Thouless transition in two-dimensional superfluidThe 2d superfluid (complex φ 4 theory in two dimensions) undergoes Kosterlitz-Thouless transition driven by phase fluctuations of the superfluid order parameter. We study the transition by…A. M. Begun, A. V. Molochkov, K. L. Zarembo et al.·Sep 24, 2024SaveLearn
Vortex wall phase in fractonic XY-plaquette model on square latticeThe XY-plaquette model is the most straightforward lattice realization of a broad class of fractonic field theories that host quasiparticles with restricted mobility. The plaquette interaction…A. M. Begun, M. N. Chernodub, V. A. Goy et al.·Sep 24, 2024SaveLearn
Eigenvalue based taste breaking of staggered, Karsten-Wilczek and Borici-Creutz fermions with stout smearing in the Schwinger modelIn two spacetime dimensions staggered fermions are minimally doubled, like Karsten-Wilczek and Borici-Creutz fermions. A continuum eigenvalue is thus represented by a pair of near-degenerate…Maximilian Ammer, Stephan Durr·Sep 23, 2024SaveLearn
Center vortices and localized Dirac modes in the deconfined phase of (2+1)-dimensional lattice Z2 gauge theoryWe study the deconfinement transition in (2+1)-dimensional lattice Z2 gauge theory both as a percolation transition of center vortices and as a localization transition for the low-lying…György Baranka, Dénes Berta, Matteo Giordano·Sep 23, 2024SaveLearn
Decay properties of light 1-+ hybridsWe explore the decay properties of the isovector and isoscalar 1-+ light hybrids, π1 and η1, in Nf=2 lattice QCD at a pion mass mπ ≈ 417~MeV. The McNeile and…Juzheng Liang, Siyang Chen, Ying Chen et al.·Sep 22, 2024SaveLearn
Gauge Loop-String-Hadron Formulation on General Graphs and Applications to Fully Gauge Fixed Hamiltonian Lattice Gauge TheoryWe develop a gauge invariant, Loop-String-Hadron (LSH) based representation of SU(2) Yang-Mills theory defined on a general graph consisting of vertices and half-links. Inspired by weak coupling…I. M. Burbano, Christian W. Bauer·Sep 20, 2024SaveLearn
I=2 ππ s-wave scattering length from lattice QCDThe I=2 ππ elastic s-wave scattering phase shift is measured by lattice QCD with Nf=3 flavors of the Asqtad-improved staggered fermions. The lattice-calculated energy-eigenvalues of…Ziwen Fu, Jun Wang·Sep 20, 2024SaveLearn
The ηc-meson leading-twist distribution amplitudeIn this project, we employ the short-distance factorization to compute the distribution amplitude of the ηc-meson from Lattice QCD at leading twist. We employ a set of CLS Nf=2 ensembles at…Benoît Blossier, Mariane Mangin-Brinet, José Manuel Morgado Chávez et al.·Sep 18, 2024SaveLearn
Gauge field smearing and controlled continuum extrapolationsWhen designing lattice actions, gauge field smearing is often used in the definition of the lattice Dirac operator. Too much smearing can result in uncontrolled continuum extrapolations as the short…Andreas Risch·Sep 18, 2024SaveLearn
Quark mass dependence of doubly heavy tetraquark bindingThe existence of bound doubly heavy tetraquark states was confirmed by the recent LHCb discovery of the doubly charmed Tcc, less than 1 MeV below the meson pair threshold. Others states with two…W. G. Parrott, B. Colquhoun, A. Francis et al.·Sep 17, 2024SaveLearn
Bootstrap-determined p-values in Lattice QCDWe present a general method to determine the probability that stochastic Monte Carlo data, in particular those generated in a lattice QCD calculation, would have been obtained were that data drawn…Norman Christ, Rajiv Eranki, Christopher Kelly·Sep 17, 2024SaveLearn
Antistatic-antistatic Q Q qq potentials for u, d and s light quarks from lattice QCDWe report on our ongoing lattice QCD computation of antistatic-antistatic potentials in the presence of two light quarks using the CLS Nf=2 gauge configurations and the OpenQ*D codebase. We…Pedro Bicudo, Marina Krstic Marinkovic, Lasse Müller et al.·Sep 16, 2024SaveLearn