Bulk majorons at colliders
Abstract
Lepton number violation may arise via the spontaneous breakdown of a global symmetry. In extra dimensions, spontaneous lepton number violation in the bulk implies the existence of a Goldstone boson, the majoron J ^{(0)}, as well as an accompanying tower of KaluzaKlein (KK) excitations, J ^{(n)}. Even if the zeromode majoron is very weakly interacting, so that detection in lowenergy processes is difficult, the sum over the tower of KK modes may partially compensate in processes of relevance at highenergy colliders. Here we consider the inclusive differential and total cross sections for e ^{} e ^{}→ W ^{} W ^{} J, where J represents a sum over KK modes. We show that allowed parameter choices exist for which this process may be accessible to a TeVscale electron collider.
 Publication:

Physics Letters B
 Pub Date:
 June 2002
 DOI:
 10.1016/S03702693(02)019433
 arXiv:
 arXiv:hepph/0204045
 Bibcode:
 2002PhLB..538..115C
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 11 pages LaTeX, 3 eps figures (references added)