863 citations
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- Humboldt-Universität zu BerlinDE38 papers
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22 papers · 1 filter
Exact form factors of the SU(N) Gross-Neveu model and 1/N expansion
Hrachya Babujian, Angela Foerster, Michael Karowski
The general SU(N) form factor formula is constructed. Exact form factors for the field, the energy momentum and the current operators are derived and compared with the 1/N-expansio…
Fermionic vacuum polarization by a cylindrical boundary in the cosmic string spacetime
E. R. Bezerra de Mello, V. B. Bezerra, A. A. Saharian +1
The vacuum expectation values of the energy--momentum tensor and the fermionic condensate are analyzed for a massive spinor field obeying the MIT bag boundary condition on a cylind…
Iterative construction of representations and Lax matrix factorisation
S. Derkachov, D. Karakhanyan, R. Kirschner +1
The construction of a generic representation of or of the trigonomentric deformation of its enveloping algebra known as algebraic induction is conveniently formulated…
Instantons and the 5D U(1) gauge theory with extra adjoint
Rubik Poghossian, Marine Samsonyan
In this paper we compute the partition function of 5D supersymmetric U(1) gauge theory with extra adjoint matter in general -background. It is well known that such partition fun…
Ultraviolet behaviour of higher spin gauge field propagators and one loop mass renormalization
Ruben Manvelyan, Karapet Mkrtchyan, Werner Ruehl
The ultraviolet singular structure of the bulk-to-bulk propagators for higher spin gauge fields in space is analyzed in details. Possible interactions with the Higgs scal…
Lobachevsky geometry of (super)conformal mechanics
Tigran Hakobyan, Armen Nersessian
We give a simple geometric explanation for the similarity transformation mapping one-dimensional conformal mechanics to free-particle system. Namely, we show that this transformati…