24,279 research outputs found
Rotating Away Proton Decay in Flipped Unification
It is shown that by a simple extension of the fermion sector of flipped SU(5)
models and other flipped models proton decay coming from dimension-6 operators
can be suppressed by fermion mixing angles by an arbitrary amount in a natural
way.Comment: 5 page
Radiative Fermion Mass Hierarchy in a Non-supersymmetric Unified Theory
In non-supersymmetric grand unified models a ``radiative fermion mass
hierarchy" can be achieved in which the spectrum of quark and lepton masses is
determined entirely by physics at the unification scale, with many relations
following from the unified gauge symmetry, and with the masses of the lightest
family arising from loops. A simple, realistic, and predictive model of this
kind is presented. A "doubly lopsided" structure, known to lead to bilarge
neutrino mixing, plays a crucial role in the radiative hierarchy.Comment: 14 page
Four Puzzles of Neutrino Mixing
There are four puzzling questions about by the magnitudes of neutrino mixings
and mass splittings. A brief sketch is given of the various kinds of models of
neutrino masses and how they answer these questions. Special attention is given
to so-called "lopsided" models.Comment: 12 pages, LaTeX. Talk at NOON2001 conference, Univ. of Tokyo, Dec.
5-8, 200
Training the imagination to go visiting
Jon Nixon’s article, ‘Learning the Language of Deliberative Democracy’ explored languages of hope in relation to the discourses of deliberative democracy. Ours continues this theme of finding languages of hope. Like his article, ours makes people central. It explores a neglected area of epistemology: knowing people. It suggests that we take a critical perspective on the metaphors we live and then re-configure them to think again about the public and private spaces in the universities where we work
Reflecting on the technical development of the Mapping Sculpture project
This paper explains, evaluates and reflects on the technical challenges and opportunities that underpin both the Mapping Sculpture project and its mobile interface. It provides insights into the development process as an integral component of the research methodology, and highlights the importance of meaningful collaboration between researchers and software developers. Just as the project questions the conventional notion of the lone sculpture practitioner, so the technical development needed to mirror the complex web of connections between people, places, objects, organizations and events through enabling large-scale, distributed and collaborative research. Enabling access to these rich resources on mobile devices was a further innovative and challenging development, but one that opens up the possibility for fresh modes of access and development of new audiences. The success of this technical development offers a model for representing complex relationships hidden in multiple sources, enabling innovative research and enhancing access
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