Higgs Mass Constraints on a Fourth Family: Upper and Lower Limits on CKM Mixing
High Energy Physics - Phenomenology
2014-11-21 v2 High Energy Physics - Experiment
Abstract
Limits on the Higgs boson mass restrict CKM mixing of a possible fourth family beyond the constraints previously obtained from precision electroweak data alone. Existing experimental and theoretical bounds on the Higgs mass already significantly restrict the allowed parameter space. Zero CKM mixing is excluded and mixing of order the Cabibbo angle is allowed. Upper and lower limits on 3-4 CKM mixing are exhibited as a function of the Higgs mass. We use the default inputs of the Electroweak Working Group and also explore the sensitivity of both the three and four family fits to alternative inputs.
Keywords
Cite
@article{arxiv.1007.0043,
title = {Higgs Mass Constraints on a Fourth Family: Upper and Lower Limits on CKM Mixing},
author = {Michael S. Chanowitz},
journal= {arXiv preprint arXiv:1007.0043},
year = {2014}
}
Comments
Adds discussion of alternative fourth family masses, including new best fit, and reconciles with published version