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arXiv · 1307.6001

Multiloop Amplitudes of Light-cone Gauge Bosonic String Field Theory in Noncritical Dimensions

Nobuyuki Ishibashi·Koichi Murakami
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Abstract

We study the multiloop amplitudes of the light-cone gauge closed bosonic string field theory for $d \neq 26$. We show that the amplitudes can be recast into a BRST invariant form by adding a nonstandard worldsheet theory for the longitudinal variables $X^{\pm}$ and the reparametrization ghost system. The results obtained in this paper for bosonic strings provide a first step towards the examination whether the dimensional regularization works for the multiloop amplitudes of the light-cone gauge superstring field theory.

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Nobuyuki Ishibashi, Koichi Murakami. 2013-07-23. Multiloop Amplitudes of Light-cone Gauge Bosonic String Field Theory in Noncritical Dimensions. https://doi.org/10.1007/jhep09(2013)053

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