The W mass and the U parameter
High Energy Physics - Phenomenology
2017-08-23 v1
Abstract
The Z-pole data from e+e- colliders and results from the NuTeV experiment at Fermilab can be brought into agreement if (1) the neutrino-Z couplings were suppressed relative to the Standard Model (SM), and (2) the Higgs boson were much heavier than suggested by SM global fits. However, increasing the Higgs boson mass will move the theoretical value of the W mass away from its experimental value. A large and positive U parameter becomes necessary to account for the difference. We discuss what type of new physics may lead to such values of U.
Cite
@article{arxiv.hep-ph/0304203,
title = {The W mass and the U parameter},
author = {Tatsu Takeuchi and Will Loinaz and Naotoshi Okamura and L. C. R. Wijewardhana},
journal= {arXiv preprint arXiv:hep-ph/0304203},
year = {2017}
}
Comments
7 pages, 6 postscript figures. Talk presented by Takeuchi at SCGT'02, December 13, 2002, Nagoya, Japan. Uses ws-procs9x6.cls (included)