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On Measurement of Helicity Parameters in Top Quark Decay

Authors :
Nelson, Charles A.
Adler, L. J.
Publication Year :
2000
Publisher :
arXiv, 2000.

Abstract

To enable an evaluation of future measurements of the helicity parameters for " t --> W b " decay in regard to " T_FS violation", this paper considers the effects of an additional pure-imaginary coupling, (i g/2 Lambda) or (i g), associated with a specific, single additional Lorentz structure, i = S, P, S + P, ... Sizable " T_FS violation" signatures can occur for low-effective mass scales (< 320 GeV), but in most cases can be more simply excluded by 10% precision measurement of the probabilities P(W_L) and P(b_L). Signatures for excluding the presence of " T_FS violation" associated with the two dynamical phase-type ambiguities are investigated.<br />15 pages, 1 table, 7 figures, no macros

Details

Database :
OpenAIRE
Accession number :
edsair.doi...........a20f72b0e0b9a23611b93550f3ff391b
Full Text :
https://doi.org/10.48550/arxiv.hep-ph/0007086