Signatures of hypercharge axions in colliders - art. no. 015001

Citation
R. Brustein et Dw. Oaknin, Signatures of hypercharge axions in colliders - art. no. 015001, PHYS REV D, 6201(1), 2000, pp. 5001
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6201
Issue
1
Year of publication
2000
Database
ISI
SICI code
0556-2821(20000701)6201:1<5001:SOHAIC>2.0.ZU;2-G
Abstract
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 bo sons and detected by looking for its decay into photons or Z's. For a range of masses below 1 TeV and coupling above a fraction of 1/TeV, existing dat a from CERN LEP II and the Fermilab Tevatron can already achieve interestin g constraints, and in future colliders the accessible detection range will be increased significantly. The hypercharge axion can help in explaining th e matter-antimatter asymmetry in the universe.