Results 31 to 40 of about 825,879 (300)
Effective charge from lattice QCD [PDF]
Chinese Physics C, High Energy Physics & Nuclear Physics, 2019 Using lattice configurations for quantum chromodynamics (QCD) generated with three domain-wall fermions at a physical pion mass, we obtain a parameter-free prediction of QCD’s renormalisation-group-invariant process-independent effective charge, .
Zhu-Fang Cui +9 more
semanticscholar +1 more source
A Guide to Light-Cone PDFs from Lattice QCD: An Overview of Approaches, Techniques, and Results [PDF]
Advances in High Energy Physics, 2018 Within the theory of Quantum Chromodynamics (QCD), the rich structure of hadrons can be quantitatively characterized, among others, using a basis of universal nonperturbative functions: parton distribution functions (PDFs), generalized parton ...
K. Cichy, M. Constantinou
semanticscholar +1 more source
European Physical Journal C: Particles and Fields, 2023 We perform an analysis of Lattice QCD data on baryon octet and decuplet masses based on the chiral SU(3) Lagrangian. Low-energy constants (LEC) are adjusted to describe baryon masses from a large set of CLS ensembles, where finite-box and discretization ...
Matthias F. M. Lutz +2 more
doaj +1 more source
Dispersive determination of the HVP contribution to the muon g − 2 [PDF]
EPJ Web of Conferences, 2023 The determination of hadronic vacuum polarization (HVP) from e+e− → hadrons cross-section data, in the energy region relevant for the anomalous magnetic moment of the muon, has recently been challenged by lattice-QCD calculations, especially for the ...
Hoferichter Martin
doaj +1 more source
Design and performance of GaSb-based quantum cascade detectors. [PDF]
NanophotonicsAbstract InAs/AlSb quantum cascade detectors (QCDs) grown strain‐balanced on GaSb substrates are presented. This material system offers intrinsic performance‐improving properties, like a low effective electron mass of the well material of 0.026 m0, enhancing the optical transition strength, and a high conduction band offset of 2.28 eV, reducing the ...
Giparakis M +6 more
europepmc +2 more sources
Hadronic-vacuum-polarization contribution to the muon’s anomalous magnetic moment from four-flavor lattice QCD [PDF]
Physical Review D, 2019 We calculate the contribution to the muon anomalous magnetic moment hadronic vacuum polarization from the connected diagrams of up and down quarks, omitting electromagnetism.
C. Davies +19 more
semanticscholar +1 more source
Calculation of the nucleon axial charge in lattice QCD [PDF]
, 2006 Protons and neutrons have a rich structure in terms of their constituents, the quarks and gluons. Understanding this structure requires solving Quantum Chromodynamics (QCD). However QCD is extremely complicated, so we must numerically solve the equations
Edwards, R. G. +8 more
core +3 more sources
Scattering processes and resonances from lattice QCD [PDF]
, 2017 The vast majority of hadrons observed in nature are not stable under the strong interaction, rather they are resonances whose existence is deduced from enhancements in the energy dependence of scattering amplitudes.
R. Briceño, J. Dudek, R. Young
semanticscholar +1 more source
Lattice QCD investigation of a doubly-bottom b¯b¯ud tetraquark with quantum numbers I(JP)=0(1+) [PDF]
Physical Review D, 2019 We use lattice QCD to investigate the spectrum of the $\bar{b} \bar{b} u d$ four-quark system with quantum numbers $I(J^P) = 0(1^+)$. We use five different gauge-link ensembles with $2+1$ flavors of domain-wall fermions, including one at the physical ...
L. Leskovec +3 more
semanticscholar +1 more source
Data-driven evaluations of Euclidean windows to scrutinize hadronic vacuum polarization
Physics Letters B, 2022 In this paper, we discuss how windows in Euclidean time can be used to isolate the origin of potential conflicts between evaluations of the hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon in lattice QCD and ...
G. Colangelo +6 more
doaj +1 more source