Mass of the higgs versus fourth generation masses

The predicted value of the higgs mass $m_H$ is analyzed assuming the existence of the fourth generation of leptons ($N, E$) and quarks ($U, D$). The steep and flat directions are found in the five-dimensional parameter space: $m_H$, $m_U$, $m_D$, $m_N$, $m_E$. The LEPTOP fit of the precision electro...

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Bibliographic Details
Published inJETP letters Vol. 76; no. 3; pp. 127 - 130
Main Authors Novikov, V. A., Okun, L. B., Rozanov, A. N., Vysotsky, M. I.
Format Journal Article
LanguageEnglish
Published Springer Verlag 01.08.2002
Subjects
High Energy Physics - Phenomenology
Physics
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Summary:The predicted value of the higgs mass $m_H$ is analyzed assuming the existence of the fourth generation of leptons ($N, E$) and quarks ($U, D$). The steep and flat directions are found in the five-dimensional parameter space: $m_H$, $m_U$, $m_D$, $m_N$, $m_E$. The LEPTOP fit of the precision electroweak data is compatible (in particular) with $m_H \sim 300$ GeV, $m_N \sim 50$ GeV, $m_E \sim 100$ GeV, $m_U +m_D \sim 500$ GeV, and $|m_U -m_D| \sim 75$ GeV. The quality of fits drastically improves when the data on b- and c-quark asymmetries and new NuTeV data on deep inelastic scattering are ignored.
ISSN:0021-3640
1090-6487
DOI:10.1134/1.1514752