Comment on Is There a Fourth Neutrino Out There in the Universe?parentComments−Taniwha7ycough .... IceCube .... cough−magicalhippo7yIceCube uses the entire earth as a shield. Basically only neutrinos going up through the detector is considered.−Taniwha7yI guess that depends on how you define 'up' (are you looking at the entire planet or standing on the pole)As I understand it these days they grab all samples and are now able to distinguish 'downward' coming neutrinos from cosmic rays in software
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cough .... IceCube .... cough
IceCube uses the entire earth as a shield. Basically only neutrinos going up through the detector is considered.
I guess that depends on how you define 'up' (are you looking at the entire planet or standing on the pole)
As I understand it these days they grab all samples and are now able to distinguish 'downward' coming neutrinos from cosmic rays in software