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) |
|---|---|
| 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)