Three Numerical Puzzles and the Top Quark's Chiral Weak-Moment
arXiv:hep-ph/0106138 · doi:10.1103/PhysRevD.65.074033
Abstract
Versus the standard model's t --> W b decay helicity amplitudes, three numerical puzzles occur at the 0.1 % level when one considers the amplitudes in the case of an additional (f_M + f_E) coupling of relative strength 53 GeV. The puzzles are theoretical ones which involve the t --> W b decay helicity amplitudes in the two cases, the relative strength of this additional coupling, and the observed masses of these three particles. A deeper analytic realization is obtained for two of them. Equivalent realizations are given for the remaining one. An empirical consequence of these analytic realizations is that it is important to search for effects of a large chiral weak-moment of the top-quark, the effective mass-scale is about 53 GeV. A full theoretical resolution would include relating the origin of such a chiral weak-moment and the mass generation of the top-quark, the W-boson, and probably the b-quark.
18 pages, 1 postscript table (revised to better explain notation, model #1, add a little material...)
References in corpus (10)
- Single Top Production as a Window to Physics Beyond the Standard Model
- CP Violation in Top Physics
- Top quark spin correlations at hadron colliders: Predictions at next-to-leading order QCD
- Finite-Width Effects in Top Quark Production at Hadron Colliders
- Single top quark tW+X production at the LHC: a closer look
- Measurement of the Helicity of W Bosons in Top Quark Decays
- Next-to-leading order QCD corrections to top quark spin correlations at hadron colliders: the reactions and
- Spin Correlation in tt-bar Production from pp-bar Collisions at sqrt(s)=1.8 TeV
- Single Top Production in , , and Collisions
- On Measurement of Helicity Parameters in Top Quark Decay