Differentiating Between Low Scale Gravity (LSG) and Standard Model (SM) with Ultra High Energy (UHE) Neutrinos from Astrophysical Sources.

Details Differentiating Between Low Scale Gravity (LSG) and Standard Model (SM) with Ultra High Energy (UHE) Neutrinos from Astrophysical Sources. Differentiating Between Low Scale Gravity (LSG) and Standard Model (SM) with Ultra High Energy (UHE) Neutrinos from Astrophysical Sources.

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..apr.s7001h&link_type=abstract

American Physical Society, April Meeting, 2004, May 1-4, 2004, Denver, Colorado April 2004, MEETING ID: APR04, abstract #S7.001

Physics

Scientific paper

We show that LSG model predictions of event ratios are clearly distinguished from those of the SM. This is true in all models of UHE neutrino sources, in both ν_e: ν_μ:ν_τ = 1:1:1 and ν_e:ν_μ:ν_τ = 1:2:0 scenarios for the flux incident on earth. In particular the ratios of upward mu events to upward shower events and the ratios of up events to down events are different by a factor of 2 to an order of magnitude in the comparisons between SM and LSG. Tau-neutrino rates are low but show high sensitivity to SM vs LSG interaction physics.

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