Deformations of Boltzmann DistributionsConsider a one-parameter family of Boltzmann distributions pt(x) = 1Zte-St(x). This work studies the problem of sampling from pt0 by first sampling from pt1 and then…Bálint Máté, François Fleuret·Oct 25, 2022SaveLearn
Spectral-weight sum rules for the hadronic vacuum polarizationWe develop a number of sum rules comparing spectral integrals involving judiciously chosen weights to integrals over the corresponding Euclidean two-point function. The applications we have in mind…Diogo Boito, Maarten Golterman, Kim Maltman et al.·Oct 25, 2022SaveLearn
Numerical Evaluation of a Soliton Pair with Long Range InteractionWithin the model of topological particles (MTP) we determine the interaction energy of monopole pairs, sources and sinks of a Coulombic field. The monopoles are represented by topological solitons of…Joachim Wabnig, Josef Resch, Dominik Theuerkauf et al.·Oct 24, 2022SaveLearn
Study of I=0 bottomonium bound states and resonances based on lattice QCD static potentialsWe investigate I = 0 bottomonium bound states and resonances in S, P, D and F waves using lattice QCD static-static-light-light potentials. We consider five coupled channels, one confined…Pedro Bicudo, Nuno Cardoso, Lasse Mueller et al.·Oct 24, 2022SaveLearn
Ab-initio study of dibaryons with highest bottom numberWe present the first lattice study of dibaryons with highest bottom number. Utilizing a set of state-of-the-art lattice QCD ensembles and methodologies, we determine the ground state of dibaryon…M. Padmanath, Nilmani Mathur, Debsubhra Chakraborty·Oct 24, 2022SaveLearn
Hadronic light-by-light scattering contribution to the muon g-2 from lattice QCD: semi-analytical calculation of the QED kernelHadronic light-by-light scattering is one of the virtual processes that causes the gyromagnetic factor g of the muon to deviate from the value of two predicted by Dirac's theory. This process makes…Nils Asmussen, En-Hung Chao, Antoine Gérardin et al.·Oct 21, 2022SaveLearn
Real time evolution and a traveling excitation in SU(2) pure gauge theory on a quantum computerThe Hamiltonian approach can be used successfully to study the real-time evolution of a non-Abelian lattice gauge theory on the available noisy quantum computers. In this work, results from the…Sarmed A Rahman, Randy Lewis, Emanuele Mendicelli et al.·Oct 20, 2022SaveLearn
Topology changing update algorithms for SU(3) gauge theoryAt fine lattice spacings, lattice simulations are plagued by slow (topological) modes that give rise to large autocorrelation times. These, in turn, lead to statistical and systematic errors that are…Timo Eichhorn, Christian Hoelbling, Philip Rouenhoff et al.·Oct 20, 2022SaveLearn
Singlet Mesons in Dark Sp(4) TheoriesWe explore some aspects of Sp(4) gauge theory with two fundamental fermions in the context of composite Goldstone Dark Matter. We present preliminary lattice results for the mass of the…Fabian Zierler, Jong-Wan Lee, Axel Maas et al.·Oct 20, 2022SaveLearn
A New Type of Lattice Gauge Theory through Self-adjoint ExtensionsA generalization of Wilsonian lattice gauge theory may be obtained by considering the possible self-adjoint extensions of the electric field operator in the Hamiltonian formalism. In the special case…A. Banerjee, D. Banerjee, G. Kanwar et al.·Oct 20, 2022SaveLearn
The search for new physics in B K +- and B K using precise lattice QCD form factorsWe present HPQCD's improved scalar, vector and tensor form factors for B K semileptonic decays, using the heavy-HISQ formalism for more accurate normalisation of the weak currents. Working with…W. G. Parrott, C. Bouchard, C. T. H. Davies·Oct 19, 2022SaveLearn
Chiral Symmetry Breaking in QED induced by an External Magnetic FieldWe simulate Lattice QED in a constant external magnetic field using the RHMC algorithm. We seek evidence for chiral symmetry breaking predicted by truncated Schwinger-Dyson methods. Since the…D. K. Sinclair, J. B. Kogut·Oct 19, 2022SaveLearn
Probing the singularities of the Landau-gauge gluon and ghost propagators with rational approximantsWe employ Pad\'e approximants in the study of the analytic structure of the four-dimensional SU(2) Landau-gauge gluon and ghost propagators in the infrared regime. The approximants, which are model…Diogo Boito, Attilio Cucchieri, Cristiane Y. London et al.·Oct 19, 2022SaveLearn
Gluon Parton Distribution of the Nucleon from 2+1+1-Flavor Lattice QCD in the Physical-Continuum LimitWe present the first physical-continuum limit x-dependent nucleon gluon distribution from lattice QCD using the pseudo-PDF approach, on lattice ensembles with 2+1+1 flavors of highly improved…Zhouyou Fan, William Good, Huey-Wen Lin·Oct 18, 2022SaveLearn
Study of SU(2) gauge theories with multiple Higgs fields in different representationsWe study two different SU(2) gauge-scalar theories in 3 and 4 spacetime dimensions. Firstly, we focus on the 3 dimensional SU(2) theory with multiple Higgs fields in the adjoint representation, that…Guilherme Catumba, Atsuki Hiraguchi, George W. -S. Hou et al.·Oct 18, 2022SaveLearn
Towards the finite-volume spectrum of the Roper resonanceThe finite-volume energy levels corresponding to the Roper resonance based on a two-flavor chiral effective Lagrangian at leading one-loop order are investigated. It is shown that the Roper mass can…Daniel Severt·Oct 17, 2022SaveLearn
Lattice QCD study of antiheavy-antiheavy-light-light tetraquarks based on correlation functions with scattering interpolating operators both at the source and at the sinkWe present first results of a recently started lattice QCD investigation of antiheavy-antiheavy-light-light tetraquark systems including scattering interpolating operators in correlation functions…Marc Wagner, Constantia Alexandrou, Jacob Finkenrath et al.·Oct 17, 2022SaveLearn
Grassmann tensor-network method for strong-coupling QCDWe present a tensor-network method for strong-coupling QCD with staggered quarks at nonzero chemical potential. After integrating out the gauge fields at infinite coupling, the partition function can…Jacques Bloch, Robert Lohmayer·Oct 17, 2022SaveLearn
First observation of the hidden-charm pentaquarks on latticeThe s-wave scattering of c D and c D* in the I(JP) = 12(12-) channel is calculated in lattice QCD using two ensembles with different volumes but…Hanyang Xing, Jian Liang, Liuming Liu et al.·Oct 16, 2022SaveLearn
Spectroscopy of Sp(4) lattice gauge theory with nf=3 antisymmetric fermionsWe perform numerical calculations of masses and decay constants of the lightest (flavoured) pseudoscalar, vector and axial vector mesons in the Sp(4) lattice gauge theory with three Dirac fermions…Jong-Wan Lee, Ed Bennett, Deog Ki Hong et al.·Oct 15, 2022SaveLearn
Prospects for γ γ π π via lattice QCDThe γ γ π π scattering amplitude plays a key role in a wide range of phenomena, including understanding the inner structure of scalar resonances as well as…Raúl A. Briceño, Andrew W. Jackura, Arkaitz Rodas et al.·Oct 14, 2022SaveLearn
A stabilizing kernel for complex Langevin simulations of real-time gauge theoriesThe complex Langevin (CL) method is a promising approach to overcome the sign problem, which emerges in real-time formulations of quantum field theories. Over the past decade, stabilization…Kirill Boguslavski, Paul Hotzy, David I. Müller·Oct 14, 2022SaveLearn
Thermal Transitions in Dense Two-Colour QCDThe infamous sign problem makes it impossible to probe dense (baryon density μB>0) QCD at temperatures near or below the deconfinement threshold. As a workaround, one can explore QCD-like…Dale Lawlor, Simon Hands, Seyong Kim et al.·Oct 14, 2022SaveLearn
Towards glueball masses of large-N~SU(N) Yang-Mills theories without topological freezing via parallel tempering on boundary conditionsStandard local updating algorithms experience a critical slowing down close to the continuum limit, which is particularly severe for topological observables. In practice, the Markov chain tends to…Claudio Bonanno, Massimo D'Elia, Biagio Lucini et al.·Oct 14, 2022SaveLearn
Noether supercurrent operator mixing from lattice perturbation theoryIn this work we present perturbative results for the renormalization of the supercurrent operator, Sμ, in N =1 Supersymmetric Yang-Mills theory. At the quantum level, this operator…Georg Bergner, Marios Costa, Haralambos Panagopoulos et al.·Oct 13, 2022SaveLearn