= Nima Arkani-Hamed
{c}
{tag=Physicist}
{wiki}
<Nima Arkani-Hamed> coauthored a proposal in which <large extra dimensions> account for the separation between the observed <Planck mass> and the <electroweak scale>. The model assigns different propagation spaces to <gravity> and the low-<energy> <Standard Model> fields. Its importance as a physical proposal lies in the resulting tests: altered short-distance <gravity> and processes in which <energy> escapes into the additional directions. Those predictions depend on the assumed geometry and localization mechanism.<The Hierarchy Problem and New Dimensions at a Millimeter by Nima Arkani-Hamed and others>[1998 abstract: scale hierarchy, compact dimensions and laboratory/accelerator consequences]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Nima%20Arkani-Hamed%20at%20Harvard%20%283x4%20cropped%29.jpg?width=250]
{title=Portrait of <Nima Arkani-Hamed>}
{description=Lumidek at English Wikipedia; existing crop by Wabbuh. https://creativecommons.org/licenses/by/3.0/[CC BY 3.0], via Wikimedia Commons.}
{source=https://commons.wikimedia.org/wiki/File:Nima_Arkani-Hamed_at_Harvard_%283x4_cropped%29.jpg}
{width=250}
Back to article page
