Consequences of a Large Top-Quark Chiral Weak-Moment
| dc.creator | Nelson, Charles A. | |
| dc.date | 2003-05-03 | |
| dc.date | 2003-05-19 | |
| dc.date.accessioned | 2026-07-07T03:49:34Z | |
| dc.date.available | 2026-07-07T03:49:34Z | |
| dc.description | This talk concerns some theoretical patterns of the helicity amplitudes for t --> W b decay. The patterns involve both the standard model's four decay helicity amplitudes, A_{SM}, and also the amplitudes A_{+} in the case of an additional t_R --> b_L tensorial coupling of relative strength Λ_{+} =E_W /2 = 53 GeV. Such an additional electroweak coupling would arise if the observed top-quark has a large chiral weak-transition-moment. The A_{+} amplitudes are interpreted as corresponding to the observed top-quark decays. Three tWb-transformations A_{+}=M A_{SM}, ..., are used in simple characterization of the values of Λ_{+}, and of the mass ratios m_W/m_t, and m_b/m_t. Measurement of the sign of the η_L = +/- 0.46 helicity parameter, respectively for SM/+, due to the large interference between the W-longitudinal and W-transverse amplitudes, could exclude such a chiral weak-transition-moment in favor of the SM prediction. | |
| dc.description | Talk presented at "Les Recontres de la Valle d'Aoste", March 2003. 12 pages, 1 "ps" table; version 2 for minor corrections | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0305036 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0305036 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42454 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Consequences of a Large Top-Quark Chiral Weak-Moment | |
| dc.type | text |