Constrained curve fitting for semi-parametric models with radial basis function networksCommon to many analysis pipelines in lattice gauge theory and the broader scientific discipline is the need to fit a semi-parametric model to data. We propose a fit method that utilizes a radial…Curtis Taylor Peterson, Anna Hasenfratz·Feb 6, 2024SaveLearn
A comparative lattice analysis of SU(2) dark gluebalWe study the mass and scattering cross section of SU(2) glueballs as dark matter candidates using lattice simulations. We employ both naive and improved SU(2) gauge actions in 3+1 dimensions…Min-Huan Chu, Jun-Hui Lai, Wei Wang et al.·Feb 6, 2024SaveLearn
The Bs μ+μ-γ decay rate at large q2 from lattice QCDWe determine, by means of lattice QCD calculations, the local form factors describing the Bs μ+μ-γ decay. For this analysis we make use of the gauge configurations produced by…R. Frezzotti, G. Gagliardi, V. Lubicz et al.·Feb 5, 2024SaveLearn
The θ-dependence of the Yang-Mills spectrum from analytic continuationWe study the θ-dependence of the string tension and of the lightest glueball mass in four-dimensional SU(N) Yang-Mills theories. More precisely, we focus on the coefficients…Claudio Bonanno, Claudio Bonati, Mario Papace et al.·Feb 5, 2024SaveLearn
Improved analysis of isovector nucleon matrix elements with Nf=2+1 flavors of O(a) improved Wilson fermionsWe present an update of our determination of the isovector charges gAu-d, gSu-d and gTu-d, and the isovector twist-2 forward matrix elements xu-d, $…Dalibor Djukanovic, Georg von Hippel, Harvey B. Meyer et al.·Feb 5, 2024SaveLearn
Large fluctuations in NSPT computations: a lesson from O(N) non-linear sigma modelsIn the last three decades, Numerical Stochastic Perturbation Theory (NSPT) has proven to be an excellent tool for calculating perturbative expansions in theories such as Lattice QCD, for which…P. Baglioni, F. Di Renzo·Feb 2, 2024SaveLearn
Strongly coupled gauge theories towards physics beyond the Standard ModelStrongly coupled gauge theories provide an ultra-violet realization of new physics models for physics beyond the Standard Model of particle physics arising from composite dynamics. Depending on the…Jong-Wan Lee·Feb 2, 2024SaveLearn
Towards the Application of Skewed Detailed Balance in Lattice Gauge TheoriesState-of-the-art algorithms in lattice gauge theory typically rely heavily on detailed balance, which is an instrumental tool to prove the correct convergence of the Markov Chain Monte Carlo…Marina Krstic Marinkovic, Joao C. Pinto Barros·Feb 1, 2024SaveLearn
Meron-Cluster Algorithms for Quantum Link ModelsState-of-the-art algorithms for simulating fermions coupled to gauge fields often rely on integrating fermion degrees of freedom. While successful in simulating QCD at zero chemical potential, at…Joao C. Pinto Barros, Thea Budde, Marina Krstic Marinkovic·Feb 1, 2024SaveLearn
Hadron Spectroscopy with lattice QCD: challenges and opportunitiesOngoing challenges in computing the spectrum of hadronic resonances and shallow bound-states from lattice QCD are reviewed. Since such states are identified as poles in the scattering matrix, nearby…John Bulava·Feb 1, 2024SaveLearn
The parity-odd structure function of nucleon from the Compton amplitudeThe dominant contribution to the theoretical uncertainty in the extracted weak parameters of the Standard Model comes from the hadronic uncertainties in the electroweak boxes, i.e. γ-W/Z…K. U. Can, R. Horsley, Y. Nakamura et al.·Feb 1, 2024SaveLearn
Identifying topological structures with adjoint filtering methodWe present new investigations on the Adjoint Filtering Method (AFM), a proposal for filtering gauge configurations by using adjoint zero modes. This method relies on the existence of the…Georg Bergner, Antonio González-Arroyo, Ivan Soler·Jan 30, 2024SaveLearn
Contour deformations for non-holomorphic actionsWe show how contour deformations may be used to control the sign problem of lattice Monte Carlo calculations with non-holomorphic actions. Such actions arise naturally in quantum mechanical…Scott Lawrence, Semeon Valgushev, Jianan Xiao et al.·Jan 30, 2024SaveLearn
Advances in algorithms for solvers and gauge generationI review recent research and advances in algorithms for solvers and gauge generation, with an emphasis on practical algorithms for four dimensional simulations. Particular consideration is given to…Peter A Boyle·Jan 29, 2024SaveLearn
Isovector Axial Charge and Form Factors of Nucleons from Lattice QCDI present an overview of the calculations of the isovector axial vector form factor of the nucleon, GA(Q2), using lattice QCD. Based on a comparison of results from various collaborations, a case…Rajan Gupta·Jan 29, 2024SaveLearn
Fermions, quantum gravity and holography in two dimensionsWe study a model comprising N flavors of K\"ahler Dirac fermion propagating on a triangulated two dimensional disk which is constrained to have a negative average bulk curvature. Dirichlet boundary…Muhammad Asaduzzaman, Simon Catterall, Abhishek Samlodia·Jan 27, 2024SaveLearn
Entanglement Entropy of (2+1)-Dimensional SU(2) Lattice Gauge Theory on Plaquette ChainsWe study the entanglement entropy of Hamiltonian SU(2) lattice gauge theory in 2+1 dimensions on linear plaquette chains and show that the entanglement entropies of both ground and excited states…Lukas Ebner, Andreas Schäfer, Clemens Seidl et al.·Jan 26, 2024SaveLearn
Double parton distributions with flavor interference from lattice QCDWe study double parton distributions with flavor interference in the nucleon and compare them with previous results for the flavor diagonal case. We investigate both unpolarized and polarized…Daniel Reitinger, Christian Zimmermann, Markus Diehl et al.·Jan 26, 2024SaveLearn
The International Lattice Data Grid (ILDG 2.0)We report on status and perspectives of the International Lattice Data Grid. ILDG was established some twenty years ago as a community-wide initiative to enable the sharing of gauge configurations…F. Di Renzo·Jan 26, 2024SaveLearn
Variance reduction via deflation with local coherenceIn large enough volumes, translation-averaging for quark-line connected diagrams reduces the variance inversely proportional to the volume. Stochastic estimators which implement translation averaging…Roman Gruber, Tim Harris, Marina Krstić Marinković·Jan 26, 2024SaveLearn
From square plaquettes to triamond lattices for SU(2) gauge theoryLattice gauge theory should be able to address significant new scientific questions when implemented on quantum computers. In practice, error-mitigation techniques have already allowed encouraging…Ali H. Z. Kavaki, Randy Lewis·Jan 25, 2024SaveLearn
Estimates of Lee-Yang zeros and a possible critical point on the pion condensate boundary in the QCD isospin phase diagram using an unbiased exponential resummation on the latticeWithout invoking any cumulant determination at the input level, we present here the first calculations of direct estimates of the Lee-Yang zeros of QCD partition function in (2+1)-flavor QCD. These…Sabarnya Mitra·Jan 25, 2024SaveLearn
Speeding up Fermionic Lattice Calculations with Photonic Accelerated InvertersLattice field theory (LFT) is the standard non-perturbative method to perform numerical calculations of quantum field theory. However, the typical bottleneck of fermionic lattice calculations is the…Felipe Attanasio, Marc Bauer, Jelle Dijkstra et al.·Jan 25, 2024SaveLearn
Axial U(1) symmetry near the pseudocritical temperature in Nf=2+1 lattice QCD with chiral fermionsWe study the U(1)A anomaly at high temperatures of Nf=2+1 lattice QCD with chiral fermions. Gauge ensembles are generated with M\"obius domain-wall (MDW) fermions, and the measurements are…Sinya Aoki, Yasumichi Aoki, Hidenori Fukaya et al.·Jan 25, 2024SaveLearn
Doubly charmed tetraquark Tcc+ in (2+1)-flavor QCD near physical pointWe study the doubly charmed tetraquark state Tcc+ by the HAL QCD method applied to the D*D system in (2+1) flavor lattice QCD at nearly physical pion mass, mπ= 146 MeV. We obtain the…Yan Lyu, Sinya Aoki, Takumi Doi et al.·Jan 25, 2024SaveLearn