Date: 4/08/2017 23:42:11
From: Tau.Neutrino
ID: 1098473
Subject: Ever-Elusive Neutrinos Spotted Bouncing Off Nuclei for the First Time

Ever-Elusive Neutrinos Spotted Bouncing Off Nuclei for the First Time

A new technology for detecting neutrinos represents a “monumental” advance for science

more…

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Date: 5/08/2017 00:01:29
From: sibeen
ID: 1098477
Subject: re: Ever-Elusive Neutrinos Spotted Bouncing Off Nuclei for the First Time

Tau.Neutrino said:


Ever-Elusive Neutrinos Spotted Bouncing Off Nuclei for the First Time

A new technology for detecting neutrinos represents a “monumental” advance for science

more…

That was an interesting read.

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Date: 5/08/2017 19:06:05
From: mollwollfumble
ID: 1098756
Subject: re: Ever-Elusive Neutrinos Spotted Bouncing Off Nuclei for the First Time

Tau.Neutrino said:


Ever-Elusive Neutrinos Spotted Bouncing Off Nuclei for the First Time

A new technology for detecting neutrinos represents a “monumental” advance for science

more…

“A high-energy neutrino typically picks out individual protons and neutrons with which to interact.”

Yep. That’s how many neutrino detectors work. (SNO and K2K for example).

“Just as a long, slow wave would pick up the whole patch of debris at once, a low-energy neutrino sees the entire atomic nucleus as one “coherent” whole. This dramatically improves the odds of an interaction.”

I had not heard that. That puts a different slant on things because neutrinos of different energies come from different sources. Normally, low energy events are more common but, because they lack energy, are much harder to detect. Here’s a plot of number verses energy.

Are they looking for low energy solar neutrinos (energy 300 keV) or cosmological neutrinos (energy less by a factor of between 10^9 less)? 0.300 milli-electron volts is not a hefty jolt.

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