Angelantonj, Carlo; Antoniadis, Ignatios; Samsonyan, Marine (2017). A string realisation of Ωdeformed Abelian N = 2* theory. Nuclear physics. B, 923, pp. 3253. 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 Dbrane 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 higherdimensional operators in the effective supergravity action that involve powers of theantiselfdualN =2 chiral Weyl superfield and of selfdual gauge field strengths superpartners of the D5brane coupling modulus. In the field theory limit, the result reproduces the Nekrasov partition function in the twoparameter Ωbackground, 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: 
05503213 
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 