Curves of marginal stability in two-dimensional CP(N - 1) models with ZN-symmetric twisted masses

S. Ölmez, M. Shifman

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We consider curves of marginal models in two dimensions with supersymmetry. In these theories, one can introduce twisted mass terms. The BPS spectrum has different numbers of states in the weak and strong coupling regimes. This spectral restructuring can be explained by the fact that two regimes are separated by CMS on which some BPS states decay. We focus on a special case of ZN-symmetric twisted masses. In this case, the general solution due to Dorey greatly simplifies, and CMS can be found explicitly. For small-N values numerical results are presented. In the large-N limit, we find CMS analytically up to ln N/N corrections.

Original languageEnglish (US)
Article number014
Pages (from-to)11151-11164
Number of pages14
JournalJournal of Physics A: Mathematical and Theoretical
Issue number36
StatePublished - Sep 7 2007

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