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dilaton

   Also found in: Wikipedia 0.01 sec.
dilaton [′dī·lə‚tän]
(particle physics)
A hypothetical elementary particle having zero mass and zero spin, which is introduced in constructing a scale invariant theory involving massive particles.


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Subsequent chapters describe scalar perturbations, the anisotropy spectrum of the CMB radiation, dilaton phenomenology, and elements of brane cosmology.
At higher orders in the electric charge one encounters corrections to the propagation of waves induced by the presence of a non vanishing dilaton.
 
 
 
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