QCD sum rules for skeptics

DB Leinweber - Annals of Physics, 1997 - Elsevier
A new Monte-Carlo based uncertainty analysis is introduced to quantitatively determine the
predictive ability of QCD sum rules. A comprehensive analysis of ground stateρ-meson and …

Nucleon properties from unconventional interpolating fields

DB Leinweber - Physical Review D, 1995 - APS
Interpolating fields, used to excite hadrons from the QCD vacuum in nonperturbative field-
theoretic investigations of hadron properties, are explored with an emphasis on …

Four-quark condensates in nucleon QCD sum rules

R Thomas, T Hilger, B Kämpfer - Nuclear Physics A, 2007 - Elsevier
The in-medium behavior of the nucleon spectral density including self-energies is revisited
within the framework of QCD sum rules. Special emphasis is given to the density …

What does a change in the quark condensate say about restoration of chiral symmetry in matter?

MC Birse - Physical Review C, 1996 - APS
The contribution of nucleons to the quark condensate in nuclear matter includes a piece of
first order in m π, arising from the contribution of low-momentum virtual pions to the π N σ …

Determination of the pion-nucleon coupling constant from QCD sum rules

MC Birse, B Krippa - Physics Letters B, 1996 - Elsevier
We evaluate the πN coupling constant using a QCD sum rule based on the pion-to-vacuum
matrix element of the correlator of two interpolating nucleon fields. The part of the correlator …

Determination of pion-baryon coupling constants from QCD sum rules

MC Birse, B Krippa - Physical Review C, 1996 - APS
We evaluate the πNN, πΣΣ, and πΣΛ coupling constants using QCD sum rules based on
pion-to-vacuum matrix elements of correlators of two interpolating baryon fields. The parts of …

[HTML][HTML] Isospin breaking in the decay constants of heavy mesons from QCD sum rules

W Lucha, D Melikhov, S Simula - Physics Letters B, 2017 - Elsevier
We present a study of the strong isospin-breaking (IB) effect, due in QCD to the difference
between u-and d-quark masses, in the leptonic decay constants of charmed and beauty …

Testing QCD sum rule techniques on the lattice

DB Leinweber - Physical Review D, 1995 - APS
Results for the first test of the ''crude''QCD continuum model, commonly used in QCD sum
rule analyses, are presented for baryon correlation functions. The QCD continuum model is …

Chiral symmetry and QCD sum rules for the nucleon mass in matter

MC Birse, B Krippa - Physics Letters B, 1996 - Elsevier
The quark condensate in nuclear matter contains a term of order ϱmπ, arising from the
contribution of low-momentum virtual pions to the πN sigma commutator. Standard …

Nucleon electric dipole moments from QCD sum rules

CT Chan, EM Henley, T Meissner - arXiv preprint hep-ph/9905317, 1999 - arxiv.org
The electric dipole moments of nucleons (NEDM, d_N) are calculated using the method of
QCD sum rules. Our calculations are based on the parity and time reversal violating …