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18 papers · 2 filters
Recent Results in AdS/QCD
Joshua Erlich
AdS/QCD is an extra-dimensional approach to modeling the light hadronic resonances in QCD. AdS/QCD models are generally successful at reproducing low-energy observables with around…
Tests of Universality in AdS/QCD
Joshua Erlich, Christopher Westenberger
Estimates of the light hadron masses, decay constants and couplings in AdS/QCD models are generally more accurate than should have been expected. Certain predictions based on the A…
D-state effects in the electromagnetic N-Delta transition
G. Ramalho, M. T. Pena, Franz Gross
We consider here a manifestly covariant quark model of the nucleon and the Delta, where one quark is off-shell and the other two quarks form an on-shell diquark pair. Using this mo…
A Higher-Derivative Lee-Wick Standard Model
Christopher D. Carone, Richard F. Lebed
The Lee-Wick Standard Model assumes a minimal set of higher-derivative quadratic terms that produce a negative-norm partner for each Standard Model particle. Here we introduce addi…
Chiral extrapolation of octet-baryon charge radii
P. Wang, D. B. Leinweber, A. W. Thomas +1
The charge radii of octet-baryons obtained in quenched lattice-QCD calculations are extrapolated within heavy-baryon chiral perturbation theory. Finite-range regularization (FRR) i…
Hadron Form Factors in AdS/QCD
Carl E. Carlson
We discuss how to calculate form factors using a holographic model of QCD, mainly focusing on vector, axial, and pseudoscalar mesons. We illustrate the techniques on gravitational…