{ "id": "hep-ph/0009047", "version": "v2", "published": "2000-09-05T09:36:28.000Z", "updated": "2000-09-20T13:30:25.000Z", "title": "Probing Anomalous Top Quark Couplings at the Future Linear Colliders", "authors": [ "T. Huang" ], "comment": "3 pages, 3 figures, talk at the XXX International Conference on High Energy Physics, Osaka, July 26-August 2, one reference added", "categories": [ "hep-ph" ], "abstract": "In terms of an effective Lagrangian we investigate the possibilities of probing anomalous top quark couplings, $t \\bar{t} H$, $\\gamma t \\bar{t}$, $Z t \\bar{t}$ and $tWb$ at the future linear colliders. It is found that probing anomalous top quark couplings, $t \\bar{t} H$, $\\gamma t \\bar{t}$, $Z t \\bar{t}$ and $tWb$ at the future linear colliders. It is found that at a linear collider with a c.m.energy $\\sqrt s \\sim 0.5-1.5$ TeV and a high luminosity of 10-1000 fb$^{-1}$, $e^+e^- \\to t \\bar{t} H$ is an ideal process in probing anomalous $t \\bar t H$ couplings. We also study in detail the effects of anomalous couplings on $t \\bar{t}$ spin correlations in the top pair production as well as the top quark decay processes with three bases (helicity, beam line and off-diagonal bases). Our results show that with a c. m. energy $\\sqrt s \\sim 0.5-1$ TeV and a high luminosity of 1-100 fb$^{-1}$, the anomalous couplings $\\gamma t \\bar{t}$, $Z t\\bar{t}$ and $tWb$ may be sensitively probed.", "revisions": [ { "version": "v2", "updated": "2000-09-20T13:30:25.000Z" } ], "analyses": { "keywords": [ "linear collider", "quark couplings", "probing anomalous", "high luminosity", "anomalous couplings" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 3, "language": "en", "license": "arXiv", "status": "editable", "inspire": 532912, "adsabs": "2000hep.ph....9047H" } } }