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Holomorphic corrections from wrapped Euclidean branes

Christoffer Petersson (Institutionen för fundamental fysik, Matematisk fysik)
Nuclear Physics B - Proceedings Supplements (0920-5632). Vol. 192-193 (2009), p. 169-171.
[Konferensbidrag, refereegranskat]

We discuss how non-perturbative corrections to the four-dimensional effective superpotential are generated by wrapped Euclidean D-branes. It is shown how such terms can be computed and we give a few examples of holomorphic couplings that arise front a D-brane instanton effect in string theory. Some of these instanton configurations give rise to phenomenologically desirable couplings although they do not admit an obvious interpretation in terms of standard gauge theory.



Denna post skapades 2009-12-14. Senast ändrad 2016-07-20.
CPL Pubid: 103528

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik, Matematisk fysik (2005-2013)

Ämnesområden

Fysik

Chalmers infrastruktur