Stronger Neutrino Interactions at Extremely High Energies and the Muon Anomalous Magnetic Moment

Details Stronger Neutrino Interactions at Extremely High Energies and the Muon Anomalous Magnetic Moment Stronger Neutrino Interactions at Extremely High Energies and the Muon Anomalous Magnetic Moment

2001-06-05

arxiv.org/abs/hep-ph/0106047v3

Eur.Phys.J.C23:191-194,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 3 figures

Scientific paper

10.1007/s100520100858

A specific model of parity-conserving lepton substructure is considered. We show that a positive-definite contribution to the muon $(g-2)/2$ at the possible level of about $4\times 10^{-9}$, can be related to a significant increase in the interaction cross section for cosmic-ray neutrinos with energies above about $10^{19}$ eV. The additional cross section at $\sim 10^{20}$ eV is calculated to be $\sim 10^{-29}$ cm$^2$, which is about 100 times the standard weak-interaction cross section. The model involves an extremely massive, neutral lepton, with $m_L\cong 2\times 10^6$ GeV fixed by the new contribution to $(g-2)/2$.

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