Sen, Diptiman (1989) Witten index of supersymmetric chiral theories. In: Physical Review D ï¿½ Particles and Fields, 39 (6). pp. 1795-1797.
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The Witten index can be defined in many supersymmetric theories by formulating them in the space-time R×S3. If the index is nonzero for any value of the radius of S3, it can be shown that the theory does not break supersymmetry in Minkowski space. This approach rules out supersymmetry breaking in a large class of models, chiral and otherwise. The index arguments are consistent with previous instanton calculations which indicate supersymmetry breaking in certain theories.
|Item Type:||Editorials/Short Communications|
|Additional Information:||Copyright of this article belongs to The American Physical Society.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Centre for Theoretical Studies|
|Date Deposited:||20 Oct 2010 05:55|
|Last Modified:||20 Oct 2010 05:55|
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