2005/07/23 by Tadashi Takayanagi
Physics and Astronomy · #Amplitude #Black Holes and Theoretical Physics #Dilaton #Non-critical string theory #Quantum Chromodynamics and Particle Interactions #Quantum Mechanics and Non-Hermitian Physics #Scattering #Scattering amplitude #String (physics) #String duality #String field theory #hep-th
paper · pdf · doi:10.1088/1126-6708/2005/09/001
published as JHEP 0509 (2005) 001 · 27 pages, harvmac, section 5 modified: a relation to (1,n) non-critical bosonic string added
arxiv created 2005/07/23 · openalex publication_date 2005/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this paper we discuss the scattering S-matrix of non-critical N=2 string at tree level. First we consider the c<1 string defined by combining the N=2 time-like linear dilaton SCFT with the N=2 Liouville theory. We compute three particle scattering amplitudes explicitly and find that they are actually vanishing. We also find an evidence that this is true for higher amplitudes. Next we analyze another c<1 string obtained from the N=2 time-like Liouville theory, which is closely related to the N=2 minimal string. In this case, we find a non-trivial expression for the three point functions. When we consider only chiral primaries, the amplitudes are very similar to those in the (1,n) non-critical bosonic string.