The Lightest Pseudo-Goldstone Boson at Future e+e- Colliders

Details The Lightest Pseudo-Goldstone Boson at Future e+e- Colliders The Lightest Pseudo-Goldstone Boson at Future e+e- Colliders

1999-12-14

arxiv.org/abs/hep-ph/9912333v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 8 figures, LaTeX (epsfig), Proceedings of the Second ECFA/DESY Study on Physics Studies for a Future Linear Collider

Scientific paper

In a class of models of dynamical symmetry breaking not ruled out by the available data, the lightest neutral pseudo-Nambu-Goldstone boson P0 contains only down-type techniquarks and charged technileptons. Its mass scale is naturally determined by the b-quark and therefore it is likely to be light. As the presence of pseudo-Nambu-Goldstone bosons in models of dynamical symmetry breaking is a quite general feature, the search of the P0 at colliders is an interesting opportunity of putting limits on or discovering a dynamical electroweak symmetry breaking scenario. In this note we discuss the prospects for discovering and studying the P0 at future e+e- and gamma-gamma colliders.

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