Singlet channel scattering in a Composite Higgs model on the latticeWe present the first calculation of the scattering amplitude in the singlet channel beyond QCD. The calculation is performed in SU(2) gauge theory with Nf=2 fundamental Dirac fermions and based…Vincent Drach, Patrick Fritzsch, Antonio Rago et al.·Jul 21, 2021SaveLearn
Applicability of the two-particle quantization condition to partially-quenched theoriesPartial quenching allows one to consider correlation functions and amplitudes that do not arise in the corresponding unquenched theory. For example, physical s-wave pion scattering can be…Zachary T. Draper, Stephen R. Sharpe·Jul 20, 2021SaveLearn
From Quantum Link Models to D-Theory: A Resource Efficient Framework for the Quantum Simulation and Computation of Gauge TheoriesQuantum link models provide an extension of Wilson's lattice gauge theory in which the link Hilbert space is finite-dimensional and corresponds to a representation of an embedding algebra. In…Uwe-Jens Wiese·Jul 20, 2021SaveLearn
Unpolarized gluon distribution in the nucleon from lattice quantum chromodynamicsIn this study, we present a determination of the unpolarized gluon Ioffe-time distribution in the nucleon from a first principles lattice quantum chromodynamics calculation. We carry out the lattice…Tanjib Khan, Raza Sabbir Sufian, Joseph Karpie et al.·Jul 19, 2021SaveLearn
Kondo effect with Wilson fermionsWe investigate the Kondo effect with Wilson fermions. This is based on a mean-field approach for the chiral Gross-Neveu model including four-point interactions between a light Wilson fermion and a…Tsutomu Ishikawa, Katsumasa Nakayama, Kei Suzuki·Jul 15, 2021SaveLearn
Calculation of derivative of nucleon form factors in Nf = 2+1 lattice QCD at Mπ = 138 MeV on a (5.5 fm)3 volumeWe present a direct calculation for the first derivative of the isovector nucleon form factors with respect to the momentum transfer q2 using the lower moments of the nucleon 3-point function in…Ken-Ichi Ishikawa, Yoshinobu Kuramashi, Shoichi Sasaki et al.·Jul 15, 2021SaveLearn
Statistical analysis method for the worldvolume hybrid Monte Carlo algorithmWe discuss the statistical analysis method for the worldvolume hybrid Monte Carlo (WV-HMC) algorithm [arXiv:2012.08468], which was recently introduced to substantially reduce the computational cost…Masafumi Fukuma, Nobuyuki Matsumoto, Yusuke Namekawa·Jul 14, 2021SaveLearn
Bosonization of Majorana modes and edge statesWe present a bosonization procedure which replaces fermions with generalized spin variables subject to local constraints. It requires that the number of Majorana modes per lattice site matches the…Arkadiusz Bochniak, Błażej Ruba, Jacek Wosiek·Jul 13, 2021SaveLearn
More on the flavor dependence of m / fπIn previous work, arXiv:1905.01909, we have calculated the m / fπ ratio in the chiral and continuum limit for SU(3) gauge theory coupled to Nf = 2,3,4,5,6 fermions in the…Andrey Yu. Kotov, Daniel Nogradi, Kalman K. Szabo et al.·Jul 13, 2021SaveLearn
Towards High-Precision Parton Distributions From Lattice QCD via DistillationWe apply the Distillation spatial smearing program to the extraction of the unpolarized isovector valence PDF of the nucleon. The improved volume sampling and control of excited-states afforded by…Colin Egerer, Robert G. Edwards, Christos Kallidonis et al.·Jul 12, 2021SaveLearn
Testing a new method for scattering in finite volume in the φ4 theoryWe test an alternative proposal by Bruno and Hansen [1] to extract the scattering length from lattice simulations in a finite volume. For this, we use a scalar φ4 theory with two mass…Marco Garofalo, Fernando Romero-López, Akaki Rusetsky et al.·Jul 10, 2021SaveLearn
Higher order finite volume quantization conditions for two spinless particlesLattice QCD calculations of scattering phaseshifts and resonance parameters in the two-body sector are becoming precision studies. Early calculations employed L\"uscher's formula for extracting these…Frank X. Lee, Andrei Alexandru, Ruairí Brett·Jul 9, 2021SaveLearn
Three-body dynamics of the a1(1260) resonance from lattice QCDResonant hadronic systems often exhibit a complicated decay pattern in which three-body dynamics play a relevant or even dominant role. In this work we focus on the a1(1260) resonance. For the…Maxim Mai, Andrei Alexandru, Ruairí Brett et al.·Jul 8, 2021SaveLearn
Memory efficient finite volume schemes with twisted boundary conditionsIn this paper we explore a finite volume renormalization scheme that combines three main ingredients: a coupling based on the gradient flow, the use of twisted boundary conditions and a particular…Eduardo I. Bribian, Jorge Luis Dasilva Golan, Margarita Garcia Perez et al.·Jul 8, 2021SaveLearn
Thermal monopole condensation in QCD with physical quark massesThermal monopoles, identified after Abelian projection as magnetic currents wrapping non-trivially around the thermal circle, are studied in Nf = 2+1 QCD at the physical point. The distribution in…Marco Cardinali, Massimo D'Elia, Andrea Pasqui·Jul 6, 2021SaveLearn
Parton distribution functions beyond leading twist from lattice QCD: The hL(x) caseWe report the first-ever calculation of the isovector flavor combination of the chiral-odd twist-3 parton distribution hL(x) for the proton from lattice QCD. We employ gauge configurations with…Shohini Bhattacharya, Krzysztof Cichy, Martha Constantinou et al.·Jul 6, 2021SaveLearn
Nematic Confined Phases in the U(1) Quantum Link Model on a Triangular Lattice: An Opportunity for Near-Term Quantum Computations of String Dynamics on a ChipThe U(1) quantum link model on the triangular lattice has two rotation-symmetry-breaking nematic confined phases. Static external charges are connected by confining strings consisting of individual…D. Banerjee, S. Caspar, F. -J. Jiang et al.·Jul 2, 2021SaveLearn
Lattice Renormalization of Quantum SimulationsWith advances in quantum computing, new opportunities arise to tackle challenging calculations in quantum field theory. We show that trotterized time-evolution operators can be related by analytic…Marcela Carena, Henry Lamm, Ying-Ying Li et al.·Jul 2, 2021SaveLearn
Flow-based sampling for multimodal and extended-mode distributions in lattice field theoryRecent results have demonstrated that samplers constructed with flow-based generative models are a promising new approach for configuration generation in lattice field theory. In this paper, we…Daniel C. Hackett, Chung-Chun Hsieh, Sahil Pontula et al.·Jul 1, 2021SaveLearn
Inverse Renormalization Group in Quantum Field TheoryWe propose inverse renormalization group transformations within the context of quantum field theory that produce the appropriate critical fixed point structure, give rise to inverse flows in…Dimitrios Bachtis, Gert Aarts, Francesco Di Renzo et al.·Jul 1, 2021SaveLearn
Flavor decomposition of the nucleon unpolarized, helicity and transversity parton distribution functions from lattice QCD simulationsWe present results on the quark unpolarized, helicity and transversity parton distributions functions of the nucleon. We use the quasi-parton distribution approach within the lattice QCD framework…Constantia Alexandrou, Martha Constantinou, Kyriakos Hadjiyiannakou et al.·Jun 30, 2021SaveLearn
Vacuum correlators at short distances from lattice QCDNon-perturbatively computing the hadronic vacuum polarization at large photon virtualities and making contact with perturbation theory enables a precision determination of the electromagnetic…Marco Cè, Tim Harris, Harvey B. Meyer et al.·Jun 29, 2021SaveLearn
Three-dimensional lattice SU(Nc) gauge theories with multiflavor scalar fields in the adjoint representationWe consider three-dimensional lattice SU(Nc) gauge theories with multiflavor (Nf>1) scalar fields in the adjoint representation. We investigate their phase diagram, identify the different Higgs…Claudio Bonati, Alessio Franchi, Andrea Pelissetto et al.·Jun 29, 2021SaveLearn
Center group dominance in quark confinementWe show that the color N dependent area law falloffs of the double-winding Wilson loop averages for the SU(N) lattice gauge theory obtained in the preceding works are reproduced from the…Ryu Ikeda, Kei-Ichi Kondo·Jun 28, 2021SaveLearn
Topological sampling through windingsWe propose a modification of the Hybrid Monte Carlo (HMC) algorithm that overcomes the topological freezing of a two-dimensional U(1) gauge theory with and without fermion content. This algorithm…David Albandea, Pilar Hernández, Alberto Ramos et al.·Jun 27, 2021SaveLearn