Anthony W. Thomas

TL;DR: In this paper, the authors used model independent relations derived on the basis of quark-hadron duality to relate the medium modification of the form factors to the modification at large x of the deep-inelastic structure function of a bound proton.

TL;DR: In this article, a two-component model of proton structure functions was applied to the analysis of deep-inelastic scattering (DIS) data at low $Q^2$ and small $x$, which incorporates both vector meson dominance and the correct photo-production limit.

Abstract: In N=1 supergravity the tree-level scalar potential of the hidden sector may have a minimum with broken local supersymmetry (SUSY) as well as a supersymmetric Minkowski vacuum. These vacua can be degenerate, allowing for a consistent implementation of the multiple point principle. The first minimum where SUSY is broken can be identified with the physical phase in which we live. In the second supersymmetric phase, in flat Minkowski space, SUSY may be broken dynamically either in the observable or in the hidden sectors inducing a tiny vacuum energy density. We argue that the exact degeneracy of these phases may shed light on the smallness of the cosmological constant. Other possible phenomenological implications are also discussed. In particular, we point out that the presence of such degenerate vacua may lead to small values of the quartic Higgs coupling and its beta function at the Planck scale in the physical phase.

TL;DR: In this paper, the radiative decays of a number of vector and pseudoscalar mesons were studied within an SU(3) version of the cloudy bag model, and the results indicate that the inclusion of the centre-of-mass correction is very important in any comparison with data.