Spin Issues in t-tbar Production and Decay
| dc.creator | Mahlon, Gregory | |
| dc.date | 1998-11-09 | |
| dc.date.accessioned | 2026-07-07T04:05:41Z | |
| dc.date.available | 2026-07-07T04:05:41Z | |
| dc.description | We describe the off-diagonal spin basis for observing angular correlations in top quark pair production events at the Fermilab Tevatron. For events initiated by quark-antiquark annihilation, the top and antitop quark spins are 100% correlated in this basis: a spin-up top quark is always accompanied by a spin-down antitop quark and vice versa. Inclusion of the gluon-gluon initial state lowers the fraction of unlike spin events to 92%. Nevertheless, the angular correlations between the top and antitop quark decay products are twice as large in the off-diagonal basis as those in the more traditional helicity basis. We give two brief examples of how the presence of new physics would alter these correlations. | |
| dc.description | 5 pages including 7 embedded figures. Talk presented at the Thinkshop on Top-Quark Physics for Run II, held at the Fermi National Accelerator Laboratory, October 16-18, 1998 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9811281 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9811281 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/48494 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Spin Issues in t-tbar Production and Decay | |
| dc.type | text |