Lepton Asymmetries in FCNC Decays of {\Lambda}b

Lepton polarization asymmetries for the flavor-changing neutral current (FCNC) dileptonic decays of {\Lambda}b baryons are calculated using single-component analytic (SCA) and multicomponent numerical (MCN) form factors. We show that these polarization asymmetries are insensitive to the transition form factors and, thus, the effects of QCD in the nonperturbative regime. Therefore, these observables can provide somewhat model independent ways of extracting the Wilson coefficients.Comment: 3 pages, 2 tables, 1 figure, To appear in the proceedings for the Eleventh Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2012

Metals get an awkward cousin

A newly predicted state of matter is a simple theoretical example of a phase that conducts electricity but is not smoothly connected to our conventional model of metals. A viewpoint on arXiv:1201.5998.Comment: Physics 5, 82 (2012

Alien Registration- Mott, Glenna W. (South Portland, Cumberland County)

https://digitalmaine.com/alien_docs/20254/thumbnail.jp

The Promise – and Peril – of Web-Based Course Delivery in Adult and Continuing Education

Much has been argued about the advantages and pitfalls of computer technology in the delivery of adult education. This research examined the use of web-based instruction in terms of learner attitudes, students’ differential use of computer technology, and the impact on learning outcomes and technological competency

Working Late: Exploring the Workplaces, Motivations, and Barriers of Working Seniors

This phenomenological research explored the nature of seniors’ employment. Findings focused on seniors’ motivations for continuing employment, barriers and coping mechanisms, generational differences, the role of self-directed learning, and the effect of age, status, and experience on security and capital in the workplace

Superfluid to Mott-insulator transition in Bose-Hubbard models

We study the superfluid-insulator transition in Bose-Hubbard models in one-, two-, and three-dimensional cubic lattices by means of a recently proposed variational wave function. In one dimension, the variational results agree with the expected Berezinskii-Kosterlitz-Thouless scenario of the interaction-driven Mott transition. In two and three dimensions, we find evidences that, across the transition,most of the spectral weight is concentrated at high energies, suggestive of pre-formed Mott-Hubbard side-bands. This result is compatible with the experimental data by Stoferle et al. [Phys. Rev. Lett. 92, 130403 (2004)].Comment: 4 pages, 4 figures, based on cond-mat/061130

Towards first-principles understanding of the metal-insulator transition in fluid alkali metals

By treating the electron-ion interaction as perturbation in the first-principles Hamiltonian, we have calculated the density response functions of a fluid alkali metal to find an interesting charge instability due to anomalous electronic density fluctuations occurring at some finite wave vector {\bi Q} in a dilute fluid phase above the liquid-gas critical point. Since |{\bi Q}| is smaller than the diameter of the Fermi surface, this instability necessarily impedes the electric conduction, implying its close relevance to the metal-insulator transition in fluid alkali metals.Comment: 11 pages, 5 figure