Light-cone Gauge NSR Strings in Noncritical Dimensions II -- Ramond Sector

Details Light-cone Gauge NSR Strings in Noncritical Dimensions II -- Ramond Sector Light-cone Gauge NSR Strings in Noncritical Dimensions II -- Ramond Sector

2010-10-30

arxiv.org/abs/1011.0112v2

JHEP 1101:008,2011

Physics

High Energy Physics

High Energy Physics - Theory

33 pages; v2: minor modifications

Scientific paper

10.1007/JHEP01(2011)008

Light-cone gauge superstring theory in noncritical dimensions corresponds to a worldsheet theory with nonstandard longitudinal part in the conformal gauge. The longitudinal part of the worldsheet theory is a superconformal field theory called X^{\pm} CFT. We show that the X^{\pm} CFT combined with the super-reparametrization ghost system can be described by free variables. It is possible to express the correlation functions in terms of these free variables. Bosonizing the free variables, we construct the spin fields and BRST invariant vertex operators for the Ramond sector in the conformal gauge formulation. By using these vertex operators, we can rewrite the tree amplitudes of the noncritical light-cone gauge string field theory, with external lines in the (R,R) sector as well as those in the (NS,NS) sector, in a BRST invariant way.

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