Invisible Higgs Boson Decay into Massive Neutrinos of 4th Generation
Results from several recent experiments provide inderect evidences in the favor of existence of a 4th generation neutrino. Such a neutrino of mass about 50 GeV is compatible with current physical and astrophysical constraints and well motivated in the framework of superstring phenomenology. If suffi...
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| Veröffentlicht in: | arXiv.org 2002-10 |
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| creator | Belotsky, K Fargion, D Khlopov, M Konoplich, R Shibaev, K |
| description | Results from several recent experiments provide inderect evidences in the favor of existence of a 4th generation neutrino. Such a neutrino of mass about 50 GeV is compatible with current physical and astrophysical constraints and well motivated in the framework of superstring phenomenology. If sufficiently stable the existence of such a neutrino leads to the drastic change of Higgs boson physics: for a wide range of Higgs boson masses the dominant mode of Higgs boson decay is invisible and the branching ratios for the most promising modes of Higgs boson search are significantly reduced. The proper strategy of Higgs boson searches in such a framework is discussed. It is shown that in the same framework the absence of a signal in the search for invisible Higgs boson decay at LEP means either that the mass of Higgs is greater than 113.5 GeV or that the mass difference between the Higgs mass and doubled neutrino mass is small. |
| doi_str_mv | 10.48550/arxiv.0210153 |
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| subjects | Higgs bosons Neutrinos Particle decay Phenomenology Quantum theory Quarks |
| title | Invisible Higgs Boson Decay into Massive Neutrinos of 4th Generation |
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