Results 81 to 90 of about 1,613,840 (373)
Journal of High Energy Physics, 2019 The computation of the parton distribution functions (PDF) or distribution amplitudes (DA) of hadrons from first principles lattice QCD constitutes a central open problem in high energy nuclear physics.
Joseph Karpie +3 more
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Two-particle scattering from finite-volume quantization conditions using the plane wave basis
Journal of High Energy Physics, 2021 We propose an alternative approach to Lüscher’s formula for extracting two-body scattering phase shifts from finite volume spectra with no reliance on the partial wave expansion. We use an effective-field-theory-based Hamiltonian method in the plane wave
Lu Meng, E. Epelbaum
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Journal of High Energy Physics, 2017 We calculate the strong isospin breaking and QED corrections to meson masses and the hadronic vacuum polarization in an exploratory study on a 64 × 243 lattice with an inverse lattice spacing of a −1 = 1.78 GeV and an isospin symmetric pion mass of m π =
P. Boyle +6 more
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QUASI-TOPOLOGICAL QUANTUM FIELD THEORIES AND ℤ2 LATTICE GAUGE THEORIES [PDF]
International Journal of Modern Physics A, 2012 We consider a two-parameter family of ℤ2 gauge theories on a lattice discretization [Formula: see text] of a three-manifold [Formula: see text] and its relation to topological field theories. Familiar models such as the spin-gauge model are curves on a parameter space Γ.
P. Teotonio-Sobrinho +2 more
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Parton distribution functions from Ioffe time pseudo-distributions
Journal of High Energy Physics, 2019 In this paper, we present a detailed study of the unpolarized nucleon parton distribution function (PDF) employing the approach of parton pseudo-distribution func- tions. We perform a systematic analysis using three lattice ensembles at two volumes, with
Bálint Joó +5 more
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Tensor polarizability of the vector mesons from SU(3) lattice gauge theory
Journal of High Energy Physics, 2018 The magnetic dipole polarizabilities of the vector ρ 0 and ρ ± mesons in SU(3) pure gauge theory are calculated in the article. Based on this the authors explore the contribution of the dipole magnetic polarizabilities to the tensor polarization of the ...
E. V. Luschevskaya +4 more
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Journal of High Energy Physics, 2020 Gauge theory is the framework of the Standard Model of particle physics and is also important in condensed matter physics. As its major non-perturbative approach, lattice gauge theory is traditionally implemented using Monte Carlo simulation ...
Xiaopeng Cui, Yu Shi, Ji-Chong Yang
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Quantum computing for lattice supersymmetry [PDF]
arXiv, 2021 Quantum computing promises the possibility of studying the real-time dynamics of nonperturbative quantum field theories while avoiding the sign problem that obstructs conventional lattice approaches. Current and near-future quantum devices are severely limited by noise, making investigations of simple low-dimensional lattice systems ideal testbeds for ...
arxiv
The chirally rotated Schrödinger functional: theoretical expectations and perturbative tests
Journal of High Energy Physics, 2016 The chirally rotated Schrödinger functional (χSF) with massless Wilson-type fermions provides an alternative lattice regularization of the Schrödinger functional (SF), with different lattice symmetries and a common continuum limit expected from ...
Mattia Dalla Brida +2 more
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Computational Quantum Field Theory. Part II: Lattice Gauge Theory [PDF]
Computers in Physics, 1994 J Potvin, Harvey Gould, Jan Tobochnik
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