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PrecisionW-boson and top-quark mass determinations at a muon collider

1997/02/14 by V. Barger, M. S. Berger, John F. Gunion +3 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.56.1714

published as Phys.Rev.D56:1714-1722,1997 · 27 pages, 11 figures, postscript file available via anonymous ftp://ucdhep.ucdavis.edu/han/mumu/mwmt.ps

arxiv created 1997/02/14 · openalex publication_date 1997/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Precise determinations of the masses of the W boson and of the top quark could stringently test the radiative structure of the standard model (SM) or provide evidence for new physics. We analyze the excellent prospects at a muon collider for measuring MW and mt in the W+W^\ensuremath- and tt threshold regions. With an integrated luminosity of 10 (100) fb^\ensuremath-1, the W-boson mass could be measured to a precision of 20 (6) MeV, and the top-quark mass to a precision of 200 (70) MeV, provided that theoretical and experimental systematics are understood. A measurement of \ensuremathΔmt=200 MeV for fixed MW would constrain a 100 GeV SM Higgs boson mass within about \ifmmode±\else\textpm\fi2 GeV, while \ensuremathΔMW=6 MeV for fixed mt would constrain mh to about \ifmmode±\else\textpm\fi10 GeV.

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