Particle Physics on Ice: Constraints on Neutrino Interactions Far Above the Weak Scale

Details Particle Physics on Ice: Constraints on Neutrino Interactions Far Above the Weak Scale Particle Physics on Ice: Constraints on Neutrino Interactions Far Above the Weak Scale

2005-04-26

arxiv.org/abs/hep-ph/0504228v2

Phys.Rev.Lett. 96 (2006) 021101

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure, published version

Scientific paper

10.1103/PhysRevLett.96.021101

Ultra-high energy cosmic rays and neutrinos probe energies far above the weak scale. Their usefulness might appear to be limited by astrophysical uncertainties; however, by simultaneously considering up- and down-going events, one may disentangle particle physics from astrophysics. We show that present data from the AMANDA experiment in the South Pole ice already imply an upper bound on neutrino cross sections at energy scales that will likely never be probed at man-made accelerators. The existing data also place an upper limit on the neutrino flux valid for any neutrino cross section. In the future, similar analyses of IceCube data will constrain neutrino properties and fluxes at the O(10%) level.

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