Results 31 to 40 of about 12,836,400 (307)

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

open access: yesJournal 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   +9 more
doaj   +1 more source

Thermal QCD in a non-uniform magnetic background

open access: yesJournal of High Energy Physics, 2023
Off-central heavy-ion collisions are known to feature magnetic fields with magnitudes and characteristic gradients corresponding to the scale of the strong interactions.
B. B. Brandt   +5 more
doaj   +1 more source

A New Computational Approach to Lattice Quantum Field Theories [PDF]

open access: yesProceedings of The XXVI International Symposium on Lattice Field Theory — PoS(LATTICE 2008), 2009
15 pages, 6 figures; Plenary talk presented at the XXVI International Symposium on Lattice Field Theory, July 14 - 19, 2008, Williamsburg, Virginia ...
openaire   +2 more sources

Parton distribution functions from Ioffe time pseudo-distributions

open access: yesJournal 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
doaj   +1 more source

Tensor polarizability of the vector mesons from SU(3) lattice gauge theory

open access: yesJournal 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
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

Remarks on the quantum field theory in lattice space. II [PDF]

open access: yesCommunications in Mathematical Physics, 1968
We calculate the Gelfand functionsE(f,g;a) for quantized field φ in lattice space,a being the lattice constant. In the limita → 0 the functionals take on two different forms depending upon the “potential”F[φ] of the lattice Hamiltonian (coupling between different lattice sites not included). IfF[φ] is of a short-range type (see text for definition) the
openaire   +4 more sources

Nonequilibrium Quantum Field Theory [PDF]

open access: yes, 2009
Bringing together the key ideas from nonequilibrium statistical mechanics and powerful methodology from quantum field theory, this 2008 book captures the essence of nonequilibrium quantum field theory.
Calzetta, Esteban A., Hu, Bei-Lok B.
core   +1 more source

The chirally rotated Schrödinger functional: theoretical expectations and perturbative tests

open access: yesJournal 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
doaj   +1 more source

Isospin breaking corrections to meson masses and the hadronic vacuum polarization: a comparative study

open access: yesJournal 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
doaj   +1 more source

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