Inflation and shadow matter

Details Inflation and shadow matter Inflation and shadow matter

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.319..748k&link_type=abstract

Nature (ISSN 0028-0836), vol. 319, Feb. 27, 1986, p. 748-751. Research supported by the Alfred P. Sloan Foundation.

Astronomy and Astrophysics

Astrophysics

10

Broken Symmetry, Cosmology, Gauge Theory, Universe, Decay, Gravitinos, Inflating, Missing Mass (Astrophysics), Nuclear Fusion, Particle Mass

Scientific paper

Recent work on superstring theories has prompted interest in 'shadow matter', exotic matter which interacts only gravitationally with normal matter. Gross et al. have constructed a superstring theory resulting in a gauge group E8×E8. Such a theory could result, at low energies, in the existence of two sectors: an 'observed' sector associated with all familiar particles and interactions, and another 'hidden' sector, previously discussed in various low-energy supersymmetry models. The authors demonstrate that if, in the early Universe, an inflationary phase is associated with the breaking of one of the symmetries in the E8×E8 theory, this strongly constrains the physics of both sectors if shadow matter is to be the missing mass in the Universe.

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