A New Standard Model Test for Future Colliders
Jun, 198513 pages
Published in:
- Phys.Rev.Lett. 55 (1985) 773
Report number:
- Print-85-0448 (MICHIGAN)
Citations per year
Abstract: (APS)
We point out that for W-pair production from e+e− or qq¯ beams, the correlation between the decay planes of the W's is numerically negligible (at tree level) in the standard model. This occurs for the production of WW via intermediate fermions or gauge bosons and independently for WW produced via Higgs-boson exchange, and is not restricted to two-body diagrams. In general, the correlation need not vanish, and so a nonzero correlation would be a clear signal of physics beyond the standard model. Definition of the W-decay plane should be fairly straightforward from the decay W→ff¯ and, hence, the correlation measurement is experimentally feasible.- W: PAIR PRODUCTION
- PAIR PRODUCTION: W
- ELECTRON POSITRON: INTERACTION
- INTERACTION: ELECTRON POSITRON
- QUARK ANTIQUARK: INTERACTION
- INTERACTION: QUARK ANTIQUARK
- W: DECAY
- DECAY: W
- GAUGE FIELD THEORY: SU(3) X SU(2) X U(1)
- VALIDITY TEST
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