[SUNY BING 7/2/00] hep-ph/0007086 ON MEASUREMENT OF HELICITY PARAMETERS IN TOP QUARK DECAY
نویسنده
چکیده
To enable an evaluation of future measurements of the helicity parameters for t → W+b decay in regard to T̃FS violation, this paper considers the effects of an additional pure-imaginary coupling, igi/2Λi or igi, associated with a specific, single additional Lorentz structure, i = S,P, S ± P, . . .. Sizable T̃FS violation signatures can occur for low-effective mass scales ( < 320GeV ), but in most cases can be more simply excluded by 10% precision measurement of the probabilities P (WL) and P (bL). Signatures for excluding the presence of T̃FS violation associated with the two dynamical phase-type ambiguities are investigated. Electronic address: cnelson @ binghamton.edu
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