It is home to the world's most powerful machine for producing neutrons and muons.

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High-energy neutrinos, of the sort created in cosmic calamities such as supernovae, result in high-energy muons.

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Ideally, they would use muons but, in practice, they are using a close cousin, the pion.

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This measurement, which is to be published in a forthcoming issue of Physical Review Letters, concerns particles called muons.

ECONOMIST: Particle physics

Muons created by low-energy neutrinos produce only small amounts of Cherenkov radiation.

ECONOMIST: Neutrino astronomy: Deep and meaningful | The

His measurements suggest that muons also differ from electrons in a property called magnetic moment, which governs a particle's interaction with magnetic fields.

ECONOMIST: Particle physics

Some of these may be the result of muons created by neutrinos from space, but most will be from muons created in the atmosphere by cosmic rays.

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The result is not a total surprise, since less-precise measurements published three years ago suggested that antimuons (which ought, if theory is correct, to have the same magnetic moments as muons) are similarly anomalous.

ECONOMIST: Particle physics

And muons can generate Cherenkov light.

ECONOMIST: Neutrino astronomy