H. Goldberg et Tj. Weiler, Lower energy consequences of an anomalous high-energy neutrino cross section - art. no. 113005, PHYS REV D, 5911(11), 1999, pp. 3005
A new strong interaction has been postulated for neutrinos above similar to
10(19) eV to explain the production of highest-energy cosmic-ray events. W
e derive a dispersion relation relating the hypothesized high-energy cross
section to the lower-energy neutrino-nucleon elastic amplitude. Remarkably,
we find that the real forward amplitude becomes anomalous seven orders of
magnitude lower in energy than does the total cross section. We discuss pos
sible measurable consequences of this early onset of new neutrino physics a
nd conclude that a significantly enhanced elastic nu N scattering rate may
occur for the neutrino beams available at Fermilab and CERN. [S0556-2821(99
)03709-1].