High energy scattering amplitudes of superstring theory

Chuan Tsung Chan*, Jen-Chi Lee, Yi Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


We use three different methods to calculate the proportionality constants among high-energy scattering amplitudes of different string states with polarizations on the scattering plane. These are the decoupling of high-energy zero-norm states (HZNS), the Virasoro constraints and the saddle-point calculation. These calculations are performed at arbitrary but fixed mass level for the NS sector of 10D open superstring. All three methods give the consistent results, which generalize the previous works on the high-energy 26D open bosonic string theory. In addition, we discover new leading order high-energy scattering amplitudes, which are still proportional to the previous ones, with polarizations orthogonal to the scattering plane. These scattering amplitudes are of subleading order in energy for the case of 26D open bosonic string theory. The existence of these new high-energy scattering amplitudes is due to the worldsheet fermion exchange in the correlation functions and is, presumably, related to the high-energy massive spacetime fermionic scattering amplitudes in the R-sector of the theory.

Original languageEnglish
Pages (from-to)93-123
Number of pages31
JournalNuclear Physics B
Issue number1-2
StatePublished - 20 Mar 2006

Fingerprint Dive into the research topics of 'High energy scattering amplitudes of superstring theory'. Together they form a unique fingerprint.

Cite this