We compute the dominant new physics contributions to the processes Z + bb and B-l? in the context of two representative models with extra dimensions. The main thrust of the calculations focuses on how to control the effects of the infinite tower of Kaluza-Klein modes inside the relevant one-loop dia
Lattice fields and extra dimensions
β Scribed by Michael Creutz
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 118 KB
- Volume
- 127
- Category
- Article
- ISSN
- 0010-4655
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β¦ Synopsis
Lattice gauge theory is now well into its third decade as a major subfield of theoretical particle physics. I open these lattice sessions with a brief review of the motivations for this formulation of quantum field theory. I then comment on the recent drive of lattice theorists to include a fictitious "fifth" dimension to treat issues of chiral symmetry and anomalies.
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## Abstract The electroβmagnetic and particle radiation detected from the direction of Cygnus X3 raise the question of the existence of special longβlived, neutral particles. We investigate the origin of these particles in a special approach: the source object may contain compactified extra dimensi