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Castro, Alejandra; Quevedo, L.

doi:10.1016/j.physletb.2006.06.013

Physics Letters B

2006

DOI: 10.1016/j.physletb.2006.06.013

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Non-singlet Q-deformed N=(1,0) and N=(1

Alejandra Castro

L. Quevedo

Abstract: In this paper we construct N = (1, 0) and N = (1, 1/2) non-singlet Q-deformed supersymmetric U(1) actions in components. We obtain an exact expression for the enhanced supersymmetry action by turning off particular degrees of freedom of the deformation tensor. We analyze the behavior of the action upon restoring weekly some of the deformation parameters, obtaining a non trivial interaction term between a scalar and the gauge field, breaking the supersymmetry down to N = (1, 0).Additionally, we present the corr… Show more

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Cited by 8 publications

References 26 publications

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Vector-multiplet effective action in the non-anticommutative charged hypermultiplet model

2006

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We investigate the quantum aspects of a charged hypermultiplet in deformed N =(1, 1) superspace with singlet non-anticommutative deformation of supersymmetry. This model is a "star" modification of the hypermultiplet interacting with a background Abelian vector superfield. We prove that this model is renormalizable in the sense that the divergent part of the effective action is proportional to the N =(1, 0) non-anticommutative super Yang-Mills action. We also calculate the finite part of the low-energy effective action depending on the vector multiplet, which corresponds to the (anti)holomorphic potential. The holomorphic piece is just deformed to the star-generalization of the standard holomorphic potential, while the antiholomorphic piece is not. We also reveal the component structure and find the deformation of the mass and the central charge.

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Vector-multiplet effective action in the non-anticommutative charged hypermultiplet model

2006

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Non(anti)commutative Script N = 2 supersymmetric gauge theory from superstrings in graviphoton background

Ito¹,

Sasaki²

2006

J. High Energy Phys.

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We study open string amplitudes with the D3-branes in type IIB superstring theory compactified on C 2 /Z 2 . We introduce constant graviphoton background along the branes and calculate disk amplitudes using the NSR formalism. We take the zero slope limit and investigate the effective Lagrangian on the D3-branes deformed by the graviphoton background. We find that the deformed Lagrangian agrees with that of N = 2 supersymmetric U (N ) gauge theory defined in non(anti)commutative N = 1 superspace by choosing appropriate graviphoton background. It is also shown that abelian gauge theory defined in N = 2 harmonic superspace with specific nonsinglet deformation is consistent with the deformed theory.

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Deformation of Script N = 4 super Yang–Mills theory in graviphoton background

Ito¹,

Kobayashi²,

Sasaki³

2007

J. High Energy Phys.

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We study deformation of N = 4 super Yang-Mills theory from type IIB superstrings with D3-branes in the constant R-R background. We compute disk amplitudes with one graviphoton vertex operator and investigate the zero-slope limit of the amplitudes. We obtain the effective action deformed by the graviphoton background, which contains the one defined in non(anti)commutative N = 1 superspace as special case. The bosonic part of the Lagrangian gives the Chern-Simons term coupled with the R-R potential. We study the vacuum configuration of the deformed Lagrangian and find the fuzzy sphere configuration for scalar fields.

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Non-singlet Q-deformed N=(1,0) and N=(1

Cited by 8 publications

References 26 publications

Vector-multiplet effective action in the non-anticommutative charged hypermultiplet model

Vector-multiplet effective action in the non-anticommutative charged hypermultiplet model

Non(anti)commutative Script N = 2 supersymmetric gauge theory from superstrings in graviphoton background

Deformation of Script N = 4 super Yang–Mills theory in graviphoton background

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