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arXiv · hep-th/0007070

Fermionic zero-norm states and enlarged supersymmetries of Type II string

Jen-Chi Lee
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Abstract

We calculate the NS-R fermionic zero-norm states of type II string spectrum. The massless and some possible massive zero-norm states are identified to be responsible for the space-time supersymmetry. The existence of other fermionic massive zero-norm states with higher spinor-tensor indices correspond to new enlarged boson-fermion symmetries of the theory at high energy. We also discuss the R-R charges and R-R zero-norm states and justify that perturbative string does not carry the massless R-R charges. However, the existence of some massive R-R zero-norm states make us speculate that string may carry some massive R-R charges.

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Jen-Chi Lee. 2000-07-13. Fermionic zero-norm states and enlarged supersymmetries of Type II string. https://doi.org/10.1007/s100520050728

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