Professor proposes theory of unparticle physics

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Unparticles but not particles can fit in a theory that has the property of icontinuousi scale-invariance which is difficult to visualize. A fractal like this Koch Curve is an example of discrete scale-invariance because it looks the same if multiplie ...
Unparticles, but not particles, can fit in a theory that has the property of continuous scale-invariance, which is difficult to visualize. A fractal, like this Koch Curve, is an example of discrete scale-invariance because it looks the same if multiplied by a fixed number. Credit: Benoit Mandelbrot, Fractals.
Howard Georgi, a physicist at Harvard University, has recently published a paper on so-called unparticle physics, which suggests the existence of “unparticle stuff” that cannot be accounted for by the standard model. Appearing in a recent edition of Physical Review Letters, the paper says that unparticle stuff would be very different than anything seen before.


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