Signatures of HyperCharge Axions in Colliders

Details Signatures of HyperCharge Axions in Colliders Signatures of HyperCharge Axions in Colliders

1999-06-11

arxiv.org/abs/hep-ph/9906344v1

Phys.Rev. D62 (2000) 015001

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 8 figures, uses axodraw.sty

Scientific paper

10.1103/PhysRevD.62.015001

If in addition to the standard model fields, a new pseudoscalar field that couples to hypercharge topological number density, the hypercharge axion, exists, it can be produced in colliders in association with photons or Z bosons, and detected by looking for its decay into photons or Z's. For a range of masses below a TeV and coupling above a fraction of 1/TeV, existing data from LEP II and the Tevatron can already put interesting constraints, and in future colliders accessible detection range is increased significantly. The hypercharge axion can help in explaining the matter-antimatter asymmetry in the universe.

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