{ "id": "hep-ph/0012109", "version": "v1", "published": "2000-12-10T15:16:43.000Z", "updated": "2000-12-10T15:16:43.000Z", "title": "Measuring the Top Yukawa coupling to a heavy Higgs boson at future e+e- Linear Colliders", "authors": [ "Juan Alcaraz", "Ester Ruiz Morales" ], "comment": "4 pages, 4 figures, Latex using Revtex", "journal": "Phys.Rev.Lett. 86 (2001) 3726-3729", "doi": "10.1103/PhysRevLett.86.3726", "categories": [ "hep-ph", "hep-ex" ], "abstract": "The determination of the Yukawa coupling of the top quark to the Higgs boson is one of the most important measurements that a future e^+e^- linear collider could provide. For a Higgs boson of mass greater than 350 GeV, this coupling can be determined using the Higgs resonant contribution to t \\bar t production from W^+ W^- fusion at TeV energies. We have made a careful evaluation of the significance with which the signal of a Higgs decaying to t \\bar t pairs could be observed at future e^+ e^- linear colliders, with center of mass energies close to 1 TeV and an integrated luminosity of 1 ab^{-1}. We find that a signal significance greater than 5 \\sigma and a relative error in the top Yukawa measurement better than 10% can be achieved, for Higgs masses in the 350-500 GeV and 350-650 GeV ranges at facilities with 800 GeV and 1 TeV energies respectively.", "revisions": [ { "version": "v1", "updated": "2000-12-10T15:16:43.000Z" } ], "analyses": { "keywords": [ "linear collider", "heavy higgs boson", "yukawa coupling", "tev energies", "yukawa measurement better" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "RevTeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 538425 } } }