PT Journal
AU Bustamante, M
   Gago, AM
   Jones Perez, J
TI SUSY renormalization group effects in ultra high energy neutrinos
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2011
BP 133
EP 26pp
VL 05
IS 5
DI 10.1007/JHEP05(2011)133
LA English
DE Neutrino Physics; Supersymmetric Standard Model; Renormalization Group
AB We have explored the question of whether the renormalization group running of the neutrino mixing parameters in the Minimal Supersymmetric Standard Model is detectable with ultra-high energy neutrinos from active galactic nuclei (AGN). We use as observables the ratios of neutrino fluxes produced at the AGN, focusing on four different neutrino production models: (Phi(0)(v epsilon+(v) over bar epsilon) : Phi(0)(v mu+(v) over bar mu) : Phi(0)(v tau+(v) over bar tau)) = (1 : 2 : 0), (0 : 1 : 0), (1 : 0 : 0), and (1 : 1 : 0). The prospects for observing deviations experimentally are taken into consideration, and we find out that it is necessary to impose a cut-off on the transferred momentum of Q(2) >= 10(7) GeV(2). However, this condition, together with the expected low value of the diffuse AGN neutrino flux, yields a negligible event rate at a km-scale. Cerenkov detector such as IceCube.
ER