48 citations · 99 across the 8 of their papers we have counts for
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Circumventing the No-Go Theorem in Noncommutative Gauge Field Theory
Masato Arai, Sami Saxell, Anca Tureanu +1
Stringent restrictions for model building are imposed by a no-go theorem in noncommutative gauge field theory. Circumventing this theorem is crucial for the construction of realist…
Projective superspace and hyperkahler sigma models on cotangent bundles of Hermitian symmetric spaces
Masato Arai, Sergei M. Kuzenko, Ulf Lindstrom
We review the projective-superspace construction of four-dimensional N=2 supersymmetric sigma models on (co)tangent bundles of the classical Hermitian symmetric spaces.
Meta-stable Vacuum in Spontaneously Broken N=2 Supersymmetric Gauge Theory
Masato Arai, Claus Montonen, Nobuchika Okada +1
We consider an N=2 supersymmetric SU(2) \times U(1) gauge theory with N_f=2 massless flavors and a Fayet-Iliopoulos (FI) term. In the presence of the FI term, supersymmetry is spon…
Domain Walls with Massive Hypermultiplets
Masato Arai, Muneto Nitta, Norisuke Sakai
Massive hypermultiplets admit degenerate discrete vacua only if they form nonlinear sigma models or have gauge interaction. We discuss BPS domain walls in these theories. This talk…
BPS Wall Solutions in Five Dimensional Supergravity
Masato Arai, Shigeo Fujita, Masashi Naganuma +1
We find an exact solution of BPS wall in five-dimensional supergravity using a gravitational deformation of the massive Eguchi-Hanson nonlinear sigma model. The warp factor decreas…
Massive Hyper-Kahler Sigma Models and BPS Domain Walls
Masato Arai, Muneto Nitta, Norisuke Sakai
With the non-Abelian Hyper-Kahler quotient by U(M) and SU(M) gauge groups, we give the massive Hyper-Kahler sigma models that are not toric in the N=1 superfield formalism. The U(M…