A string realisation of Ω-deformed Abelian N = 2* theory

Angelantonj, Carlo; Antoniadis, Ignatios; Samsonyan, Marine (2017). A string realisation of Ω-deformed Abelian N = 2* theory. Nuclear physics. B, 923, pp. 32-53. Elsevier 10.1016/j.nuclphysb.2017.07.015

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The N = 2* supersymmetric gauge theory is a massive deformation of N = 4, in which the adjoint hypermultiplet gets a mass. We present a D-brane realisation of the (non-)Abelian N = 2* theory, and compute suitable topological amplitudes, which are expressed as a double series expansion. The coefficients determine couplings of higher-dimensional operators in the effective supergravity action that involve powers of theanti-self-dualN =2 chiral Weyl superfield and of self-dual gauge field strengths superpartners of the D5-brane coupling modulus. In the field theory limit, the result reproduces the Nekrasov partition function in the two-parameter Ω-background, in agreement with a recent proposal.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Antoniadis, Ignatios

Subjects:

500 Science > 530 Physics

ISSN:

0550-3213

Publisher:

Elsevier

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

02 Nov 2017 15:21

Last Modified:

02 Nov 2017 15:21

Publisher DOI:

10.1016/j.nuclphysb.2017.07.015

ArXiv ID:

1702.04998

BORIS DOI:

10.7892/boris.106391

URI:

https://boris.unibe.ch/id/eprint/106391

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