Results 31 to 40 of about 487,040 (231)
QCD equation of state and dark matter [PDF]
, 2012 The QCD equation of state is not often discussed in cosmology. However, the relic density of weakly interacting massive particles (WIMPs) depends on the entropy and the expansion rate of the Universe when they freeze out, at a temperature in the range ...
Philipsen, Owe +3 more
core +1 more source
Searching for the QCD critical point through constant entropy density contours [PDF]
EPJ Web of ConferencesWe propose a novel method to locate the QCD critical point by constructing an expansion along contours of constant entropy density. Applying two independent analyses of lattice QCD data at zero baryon chemical potential, we find a critical point at Tc ...
Shah Hitansh +4 more
doaj +1 more source
Baryon wave functions from lattice QCD [PDF]
, 2011 We describe an ongoing project by the QCDSF collaboration to calculate baryon wave functions at small inter-quark separation using lattice QCD. Preliminary results are presented for the wave functions at the origin and momentum fractions carried by the ...
QCDSF Collaboration +25 more
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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
Computing the magnetic field response of the proton [PDF]
EPJ Web of Conferences, 2020 Background field methods offer an approach through which fundamental non-perturbative hadronic properties can be studied. Lattice QCD is the only ab initio method with which Quantum Chromodynamics can be studied at low energies; it involves numerically ...
Bignell Ryan +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
Nuclear Physics B - Proceedings Supplements, 1996 This is the Lattice '95 review of recent progress towards accurate QCD simulations using very coarse lattices. This development could have revolutionary implications for low energy (nonperturbative) QCD.
openaire +2 more sources
Pion photoproduction of nucleon excited states with Hamiltonian effective field theory [PDF]
EPJ Web of ConferencesOver the past few years, Hamiltonian effective field theory has been successfully applied to studies of nucleon and hyperon excited states. By discretizing the Hamiltonian in a finite volume, one can obtain the energy spectrum and compare it with the ...
Zhuge Yu +4 more
doaj +1 more source
Computers for Lattice QCD [PDF]
Nuclear Physics B - Proceedings Supplements, 2000 5 Pages, LaTeX, 2 PS figures, talk presented at Lattice'99 (machines)
openaire +2 more sources
Heavy quark physics on the lattice with improved nonrelativistic actions [PDF]
, 2010 Hadrons containing heavy quarks, in particular b quarks, play an important role in high energy physics. Measurements of their electroweak interactions are used to test the Standard Model and search for new physics.
core +2 more sources