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Letter: Left in a spin

Published 27 August 2014

From Ron Barnes

Anil Ananthaswamy’s excellent article on separating a neutron from its spin left me greatly puzzled (26 July, p 32).

Is a neutron without its spin still a neutron, I wonder, or is it something else?

Watlington, Norfolk, UK

The editor replies:

• The question is a really good one. The honest answer is that this is so new nobody has a name for a neutron without a spin, or indeed a spin without a neutron.

Issue no. 2984 published 30 August 2014

Â鶹´«Ã½ issue 2984 cover

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