Results 41 to 50 of about 272,661 (254)

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, Joseph Karpie, Kostas Orginos, Anatoly Radyushkin, David Richards, Savvas Zafeiropoulos   +5 more
doaj   +1 more source

Induced QCD II: numerical results

Journal of High Energy Physics, 2019
We numerically explore an alternative discretization of continuum SU(N c ) Yang-Mills theory on a Euclidean spacetime lattice, originally introduced by Budzcies and Zirnbauer for gauge group U(N c ).
Bastian B. Brandt, Robert Lohmayer, Tilo Wettig   +2 more
doaj   +1 more source

N $$ \mathcal{N} $$ = 1 Super-Yang-Mills theory on the lattice with twisted mass fermions

Journal of High Energy Physics, 2021
Super-Yang-Mills theory (SYM) is a central building block for supersymmetric extensions of the Standard Model of particle physics. Whereas the weakly coupled subsector of the latter can be treated within a perturbative setting, the strongly coupled ...
Marc Steinhauser, André Sternbeck, Björn Wellegehausen, Andreas Wipf   +3 more
doaj   +1 more source

Deconfined quantum criticality in the two dimensional Kondo lattice model [PDF]

, 2005
We investigate the continuous quantum phase transition from an antiferromagnetic metal to a heavy fermion liquid based on the Kondo lattice model in two dimensions.
A. Auerbach, A. W. Sandvik, Alexei M. Tsvelik, G. Sierra, Ki-Seok Kim, N. Nagaosa, P. Coleman   +6 more
core   +1 more source

Reconstructing parton distribution functions from Ioffe time data: from Bayesian methods to neural networks

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, Kostas Orginos, Alexander Rothkopf, Savvas Zafeiropoulos   +3 more
doaj   +1 more source

Renormalization group theory of nematic ordering in d-wave superconductors [PDF]

, 2008
We examine the quantum theory of the spontaneous breaking of lattice rotation symmetry in d-wave superconductors on the square lattice. This is described by a field theory of an Ising nematic order parameter coupled to the gapless fermionic ...
E. Brézin, Subir Sachdev, Yejin Huh
core   +2 more sources

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, Stefan Sint, Pol Vilaseca   +2 more
doaj   +1 more source

A Gentle Introduction to Lattice Field Theory

Entropy
The principles of Lattice Field Theory (LFT), in particular Lattice Gauge Theory (LGT), are explained for a nonspecialist audience. We describe some of the successes of the program; we also discuss the relationship between LFT and Quantum Cellular ...
Erhard Seiler
doaj   +1 more source

Consistency between Lüscher’s finite volume method and HAL QCD method for two-baryon systems in lattice QCD

Journal of High Energy Physics, 2019
There exist two methods to study two-baryon systems in lattice QCD: the direct method which extracts eigenenergies from the plateaux of the temporal correlation function and the HAL QCD method which extracts observables from the non-local potential ...
The HAL QCD collaboration, Takumi Iritani, Sinya Aoki, Takumi Doi, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Noriyoshi Ishii, Hidekatsu Nemura, Kenji Sasaki   +9 more
doaj   +1 more source

A single-particle framework for unitary lattice gauge theory in discrete time

New Journal of Physics, 2022
We construct a real-time lattice-gauge-theory (LGT)-type action for a spin-1/2 matter field of a single particle on a $(1+1)$ -dimensional spacetime lattice.
Pablo Arnault, Christopher Cedzich
doaj   +1 more source