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

被引：0
作者：
Nobuyuki Ishibashi
Koichi Murakami
机构：
[1] University of Tsukuba,Tomonaga Center for the History of the Universe
[2] National Institute of Technology,undefined
[3] Kushiro College,undefined
来源：
Journal of High Energy Physics | / 2018卷
关键词：
String Field Theory; BRST Quantization; Conformal Field Models in String Theory; Superstrings and Heterotic Strings;
D O I：
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学科分类号：
摘要：
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.
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