Conformal Higgs Inflation

We investigate a locally scale-invariant (that is, Weyl-invariant) theory which describes the coupling of gravity and the standard model from the viewpont of the Higgs mechanism and inflation. It is shown that this theory exhibits a peculiar feature of a coupling between the gauge field and the inflaton in a large field limit whereas it nicely describes the standard model coupled to general relativity in a small field limit. Moreover, we discuss a possibility that this Weyl invariant theory could explain the recent BICEP2 measurement by deforming the potential term in an appropriate way, and find it to be difficult to do that even if we introduce a non-analytical type of the potential.Comment: 13 page

Quadratic Chaotic Inflation from Higgs Inflation

Stimulated with the recent discovery of B-mode by BICEP2, we discuss the relation between a Higgs inflation and a chaotic inflation with quadratic potential. Starting with a generalized Higgs inflation model, we derive a condition for obtaining the quadratic chaotic inflation. It is shown that the running of the Higgs self-coupling constant in the Jordan frame plays a decisive role when the generalized Higgs inflation model coincides with the Higgs inflation model in a small-field limit.Comment: Added some sentences to the final section for clarificatio

Non-ladder Extended Renormalization Group Analysis of the Dynamical Chiral Symmetry Breaking

The order parameters of dynamical chiral symmetry breaking in QCD, the dynamical mass of quarks and the chiral condensates, are evaluated by numerically solving the Non-Perturbative Renormalization Group (NPRG) equations. We employ an approximation scheme beyond ``the ladder'', that is, beyond the (improved) ladder Schwinger-Dyson equations. The chiral condensates are enhanced compared with the ladder ones, which is phenomenologically favorable. The gauge dependence of the order parameters is fairly reduced in this scheme.Comment: 18 pages, 30 eps file, 15 figures, LaTeX, slightly revised, references corrected, To be published in Prog. Theo. Phy

Wilson Renormalization Group Equations for the Critical Dynamics of Chiral Symmetry

The critical dynamics of the chiral symmetry breaking induced by gauge interaction is examined in the Wilson renormalization group framework in comparison with the Schwinger-Dyson approach. We derive the beta functions for the four-fermi couplings in the sharp cutoff renormalzation group scheme, from which the critical couplings and the anomalous dimensions of the fermion composite operators near criticality are immediately obtained. It is also shown that the beta functions lead to the same critical behavior found by solving the so-called ladder Schwinger-Dyson equation, if we restrict the radiative corrections to a certain limited type.Comment: 13 pages, 7 epsf figure

Classification on the Web: an analysis of Dewey Linked Data

With the availability of information in the World Wide Web its access and retrieval by the users is facilitated, and the Libraryand Information Science (LIS) field’s knowledge and techniques can be applied to this environment in order to help with theprocess. e present study is descriptive, qualitative and exploratory, based on bibliographical sources, in which it was exploredhow the Classification discipline interacts with Linked Data, focusing on the analysis of Dewey Linked Data. From four catalogsanalyzed, referred to in the literature as adhering to Dewey Linked Data, only two actually has links in their records redirectingto the system. Despite this, its presence in e Linked Open Data Cloud appears as a positive factor in its dissemination, since itboosts its visibility. It is concluded that the Classification discipline allows the thematic standardization of information resources,so that there is uniformity in the Web environment and quality retrieval of information, while promoting interoperability betweendata in the Linked Data context. e standardization of metadata values using classifications optimizes the representation ofinformation and its retrieval in the Web, while also providing the reuse of data. In addition, studies that align the area of Library andInformation Science with the Semantic Web and its technologies can provide new perspectives for the area, as well as contemplatethe users’ always changing needs, thus, fulfilling the objective of the field