Natural Theories of Ultralow Mass PNGB's: Axions and Quintessence
May, 200220 pages
Published in:
- Phys.Rev.D 66 (2002) 075010
e-Print:
- hep-ph/0205237 [hep-ph]
Report number:
- FERMILAB-PUB-02-085-T
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Abstract:
We consider the Wilson Line PNGB which arises in a U(1)^N gauge theory, abstracted from a latticized, periodically compactified extra dimension U(1). Planck scale breaking of the PNGB's global symmetry is suppressed, providing natural candidates for the axion and quintessence. We construct an explicit model in which the axion may be viewed as the 5th component of the U(1)_Y gauge field in a 1+4 latticized periodically compactified extra dimension. We also construct a quintessence PNGB model where the ultra-low mass arises from Planck-scale suppressed physics itself.- gauge field theory: U(1)**N
- spontaneous symmetry breaking
- axion: mass
- quintessence
- dimension: 5
- compactification
- critical phenomena
- Goldstone particle
- Wilson loop
- quantum chromodynamics: Theta parameter
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