Anomaly Mediation and Dimensional Transmutation

We show how a sparticle spectrum characteristic of anomaly mediation can arise from a theory whose Lagrangian contains no explicit mass scale. The scale of supersymmetry breaking is governed by the gravitino mass, which is the vacuum expectation value of the F-term of the conformal compensator field, and the tachyonic slepton problem is resolved by the breaking of a U(1) gauge symmetry at a scale determined by dimensional transmutation.Comment: 12 pages, 1 figure. v2 has added preprint number and acknowledgement

Generational Differences in Attitudes About Unions: A Segmented Dispositional Marketing Approach

Vickie Coleman Gallagher, is a Ph.D. student at Florida State University, Tallahassee, FL 32306. Jack Firorito, Ph.D., is the J. Frank Dame Professor of Management, College of Business, Florida State University, Tallahassee, FL 32306. Recipient, Best Paper Award, 26th Annual Southern Industrial Relations and Human Resource Conference (SIRHRC), Savannah, GA 31401

Geometric Classification of Conformal Anomalies in Arbitrary Dimensions

We give a complete geometric description of conformal anomalies in arbitrary, (necessarily even) dimension. They fall into two distinct classes: the first, based on Weyl invariants that vanish at integer dimensions, arises from finite -- and hence scale-free -- contributions to the effective gravitational action through a mechanism analogous to that of the (gauge field) chiral anomaly. Like the latter, it is unique and proportional to a topological term, the Euler density of the dimension, thereby preserving scale invariance. The contributions of the second class, requiring introduction of a scale through regularization, are correlated to all local conformal scalar polynomials involving powers of the Weyl tensor and its derivatives; their number increases rapidly with dimension. Explicit illustrations in dimensions 2, 4 and 6 are provided.Comment: Brandeis BRX--343, SISSA 14/93/E

Renormalization-Group Improved Effective Lagrangian for Interacting Theories in Curved Spacetime

A method for finding the renormalization group (RG) improved effective Lagrangian for a massive interacting field theory in curved spacetime is presented. As a particular example, the $\lambda \varphi^4$-theory is considered and the RG improved effective Lagrangian is explicitly found up to second order in the curvature tensors. As a further application, the curvature-induced phase transitions are discussed for both the massive and the massless versions of the theory. The problems which appear when calculating the RG improved effective Lagrangian for gauge theories are discussed, taking as example the asymptotically free SU(2) gauge model.Comment: 11 pages, LaTeX fil

Bacterial ‘histone-like protein I’ (HLP-I) is an outer membrane constituent?

AbstractThe nucleoid-associated ‘histone-like protein I’ (HLP-I) protein of E. coli was found to be homologous with the cationic 16-kDa outer membrane protein OmpH of Salmonella typhimurium. Deduced from the nucleotide sequence, the HLP-I protein has 91% identical residues with the OmpH protein. Both proteins have very similar cleavable signal sequences. The nucleotide sequence similarity between the corresponding genes hlpA and ompH is 87%. The ompH gene is located in a gene cluster resembling the hlpA-ORF17 region of E. coli which is close to the Ipx genes involved in the biosynthesis of lipopolysaccharides. The localization of the OmpH/HLP-I protein in the cell is discussed

Holomorphic Anomalies and the Nonrenormalization Theorem

It has been argued that the superpotential can be renormalized in the presence of massless particles. Possible implications which have been considered include the restoration of supersymmetry at higher loops or a shift to a supersymmetric vacuum state. We argue that even in the presence of massless particles, there are no new contributions to the superpotential at any order in perturbation theory. This confirms the utility of the Wilsonian superpotential for analyzing the moduli space of the low energy theory.Comment: 9 pages, LaTeX, 1 .ps figure, psfig.sty include

Chiral invariant renormalization of the pion--nucleon interaction

The leading divergences of the generating functional for Green functions of quark currents between one--nucleon states are calculated with heat kernel techniques. The results allow for a chiral invariant renormalization of all two--nucleon Green functions of the pion--nucleon system to $O(p^3)$ in the low--energy expansion.Comment: 13 pages, LaTex, 2 figures in appended postscript file, Univ. Wien preprint UWThPh-1994-