Multiloop amplitudes of light-cone gauge superstring field theory: odd spin structure contributions

作者：Ishibashi Nobuyuki^*; Murakami Koichi

来源：The Journal of High Energy Physics, 2018, 2018(3): 063.

DOI：10.1007/JHEP03(2018)063

• String Held Theory
• BRST Quantization
• Conformal Field Models in String Theory
• Superstrings and Heterotic Strings

We study the odd spin structure contributions to the multiloop amplitudes of light-cone gauge superstring field theory. We show that they coincide with the amplitudes in the conformal gauge with two of the vertex operators chosen to be in the pictures different from the standard choice, namely (-1, -1) picture in the type II case and -1 picture in the heterotic case. We also show that the contact term divergences can be regularized in the same way as in the amplitudes for the even structures and we get the amplitudes which coincide with those obtained from the first-quantized approach.

• 出版日期2018-3-12