Could there be something rather than nothing?
Jul, 199313 pages
Published in:
- Phys.Lett.B 315 (1993) 232-238
e-Print:
- hep-ph/9307346 [hep-ph]
Report number:
- HUTP-93-A020
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Abstract:
There is increasing evidence that the universe may have a small cosmological constant. We suggest a scheme for naturally generating a small cosmological constant. Our idea requires the presence of a discrete accidental symmetry which is spontaneously broken by vacuum expectation values of the fields, and explicitly broken by high dimensional operators in the Lagrangian.Note:
- 9 pages, 1 ps figure (included), in TeX, using harvmac; HUTP-93/A020
- cosmological constant
- vacuum state
- symmetry: SO(N)
- spontaneous symmetry breaking
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