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Letter: Light dark matter

Published 9 October 2013

From Paul Young

Given the potentially smaller size of the hypothetical particles known as weakly interacting massive particles (WIMPs) (31 August, p 36) and in view of their elusive nature, should they now be know as WISPs?
London, UK

Issue no. 2938 published 12 October 2013

Â鶹´«Ã½ issue 2938 cover

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