Spacetime fermions in light-cone gauge superstring field theory and dimensional regularization

作者：Ishibashi Nobuyuki^*; Murakami Koichi

来源：The Journal of High Energy Physics, 2011, 2011(7): 090.

DOI：10.1007/JHEP07(2011)090

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

We consider the dimensional regularization of the light-cone gauge type II superstring field theories in the NSR formalism. In the previous work, we have calculated the tree-level amplitudes with external lines in the (NS, NS) sector using the regularization and shown that the desired results are obtained without introducing contact term interactions. In this work, we study the tree-level amplitudes with external lines in the Ramond sector. In order to deal with them, we propose a worldsheet theory to be used instead of that for the naive dimensional regularization. With the worldsheet theory, we regularize and define the tree-level amplitudes by analytic continuation. We show that the results coincide with those of the first quantized formulation.

• 出版日期2011-7