93,768 research outputs found
Supersymmetric SO(N) from a Planck-scale statistical theory
Several refinements are made in a theory which starts with a Planck-scale
statistical picture and ends with supersymmetry and a coupling of fundamental
fermions and bosons to SO(N) gauge fields. In particular, more satisfactory
treatments are given for (1) the transformation from the initial Euclidean form
of the path integral for fermionic fields to the usual Lorentzian form, (2) the
corresponding transformation for bosonic fields (which is much less
straightforward), (3) the transformation from an initial primitive
supersymmetry to the final standard form (containing, e.g., scalar sfermions
and their auxiliary fields), (4) the initial statistical picture, and (5) the
transformation to an action which is invariant under general coordinate
transformations.Comment: 12 pages, proceedings of Beyond the Standard Models 2010 (Capetown,
South Africa, February 2010); one point correcte
Four Testable Predictions of Instanton Cosmology
A new cosmological model makes the following predictions: (1) The
deceleration parameter is approximately zero. (2) The mass density
parameter is less than 1. (3) The universe is spatially closed,
but is asymptotically flat as , regardless of its matter content.
(4) The age of the universe is approximately 15 Gyr if the Hubble parameter
is approximately 0.65.Comment: 4 pages. 2 minor changes to reconcile with the printed versio
Dark Matter, Quantum Gravity, Vacuum Energy, and Lorentz Invariance
We discuss the problems of dark matter, quantum gravity, and vacuum energy
within the context of a theory for which Lorentz invariance is not postulated,
but instead emerges as a natural consequence in the physical regimes where it
has been tested.Comment: 5 pages; to be published in the proceedings of the Second Meeting on
CPT and Lorentz Symmetry, edited by V. A. Kostelecky (World Scientific,
Singapore, 2002
Amphoteric behavior of complex systems. I. Theoretical.
It is the purpose of this paper to examine the probable behavior of a system of two amphoteric substances between which mutual combination may take place under proper conditions, and to show that, by employing the considerations involved, it is much easier to explain much of the physical and chemical behavior of living tissues than it is by using the concept of a simple ampholyte. In the two following papers experimental evidence is adduced, from a study of certain simple systems of two ampholytes, in support of this idea. It may, however, be pointed out that living cells are by no means as simple as this above concept would seem to indicate. Its justification lies in the fact that, by sacrificing only very little of the simplicity of treatment which suffices for consideration of simple ampholytes, one gains greatly in comprehensiveness
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