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RE: The Orca and Pingu projects for understanding neutrinos better

in #science • 9 years ago

Two things:

  1. How awesome of a name is the "Oscillation Research with Cosmics in the Abyss." - i suppose the Abyss there is the deep ocean.

  2. Cherenkov light is like the blue light in a nuclear reactor from cherenkov radiation? How does measuring that help identify the mass hierarchies? Or is this question way too far into the weeds for me to even understand (a very real possibility :)

9 years ago in #science by
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     9 years ago (edited)

    Thanks for these questions! Please find below some elements of answer (don't hesitate to come back to me if necessary). I am not an experimentalist so that I will not be able to give too much more details than that... But you can try asking ;)

    1. Actually, it is the not-so-deep Mediterranean sea :)
    2. Cherenkov light is the same light you can see in a nuclear reactor. It is due to light traveling faster than the speed of light in the medium. It is recorded by the detector sensors. You have a 3D grid of sensors, and each sensor registers the time of arrival of the light, its position and its brightness. From them, clever algorithms reconstruct what happened. By comparing data and predictions, hypotheses cam be tested, and constraints on the free parameters of the theory can be set.
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