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Elementary Particles and Fields and String Theory

SelectedWorks

2013

Articles 1 - 3 of 3

Full-Text Articles in Physics

Frau Gisela Scmidt's Boson And Funding High Energy Research, Kenneth L. Sanders Md Jan 2013

Frau Gisela Scmidt's Boson And Funding High Energy Research, Kenneth L. Sanders Md

Kenneth L Sanders MD

Proper use of Bosons can provide funding for high energy research or even balance national economies


Bps One-Branes In Five Dimensions, Moataz Emam Jan 2013

Bps One-Branes In Five Dimensions, Moataz Emam

Moataz Emam

In a recent paper, we studied the scalar fields of the five dimensional N=2 hypermultiplets using the method of symplectic covariance. For static spherically symmetric backgrounds, we showed that exactly two possibilities exist and detailed one of them. In this paper, we present the second case: Bogomol'nyi-Prasad-Sommerfield (BPS) one-branes carrying charge under the hypermultiplets. We find an explicitly symplectic solution of the fields in this background and derive the conditions required for a full spacetime understanding.


The Five Dimensional Universal Hypermultiplet And The Cosmological Constant Problem, Moataz Emam, Charles Canestaro Jan 2013

The Five Dimensional Universal Hypermultiplet And The Cosmological Constant Problem, Moataz Emam, Charles Canestaro

Moataz Emam

We model the universe as a 3-brane embedded in five dimensional spacetime with N=2 supersymmetry. The presence of the scalar fields of the universal hypermultiplet in the bulk results in a positive pressure effectively reducing the value of the cosmological constant and thereby providing a possible answer as to why the measured value of the cosmological constant is many orders of magnitude smaller than predicted from the vacuum energy. The solution allows for any number of parallel branes to exist and relates their cosmological constants (as well as matter densities and radiation pressures) to the value of the dilaton in …