Abstract
The mixed component of the noncommutative parameter (Formula presented) where (Formula presented) and M is an extra dimensional index, may violate four-dimensional (Formula presented) invariance. We calculate one- and two-loop induced couplings of (Formula presented) with the four-dimensional axial vector current and with the (Formula presented) odd (Formula presented) operators starting from five-dimensional Yukawa and (Formula presented) theories. The resulting bounds from clock comparison experiments place a stringent constraint on (Formula presented) (Formula presented) Orbifold projection and/or localization of fermions on a 3-brane lead to (Formula presented)-conserving physics, in which case the constraints on (Formula presented) are softened.
Original language | English (US) |
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Pages (from-to) | 4 |
Number of pages | 1 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 65 |
Issue number | 10 |
DOIs | |
State | Published - 2002 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)