# Generalized On-Shell Ward Identities in String Theory

@article{Lee1994GeneralizedOW, title={Generalized On-Shell Ward Identities in String Theory}, author={Jen-Chi Lee}, journal={Progress of Theoretical Physics}, year={1994}, volume={91}, pages={353-360} }

It is demonstrated that an infinite set of string-tree level on-shell Ward identities, which are valid to all a-model loop orders, can be systematically constructed without referring to the string field theory. As examples, bosonic massive scattering amplitudes are calculated explicitly up to the second massive excited states. Ward identities satisfied by these amplitudes are derived by using zero-norm states in the spectrum. In particular, the inter-particle Ward identity generated by the D 2…

## 15 Citations

### Decoupling of degenerate positive-norm states in Witten's string field theory

- Physics
- 2003

We show that the degenerate positive-norm physical propagating fields of the open bosonic string can be gauged to the higher rank fields at the same mass level. As a result, their scattering…

### Scatterings of massive string states from D-brane and their linear relations at high energies

- Physics
- 2007

### Solving all 4-point correlation functions for bosonic open string theory in the high-energy limit

- Physics, Mathematics
- 2005

### Anatomy of zero-norm states in string theory

- Physics
- 2005

We calculate and identify the counterparts of zero-norm states in the old covariant first quantized (OCFQ) spectrum of open bosonic string in two other quantization schemes of string theory, namely,…

### Zero-norm states and stringy symmetries

- Physics
- 2005

We identify spacetime symmetry charges of string theory from an infinite number of zero‐norm states (ZNS) with arbitrary high spin in the old covariant first quantized string spectrum. We give…

### Higher Spins and String Interactions

- Physics
- 2010

Riassunto della Tesi di Laurea
Massimo TARONNA
Higher Spins and String Interactions
Field Theory has long experienced a conceptual barrier at spin two. In fact, the description of fundamental…

## References

SHOWING 1-2 OF 2 REFERENCES

### 55. E. Verl i nde, Insti tude for A dvanced Study, Pri nceton Prepri nt IA SSN

- Phys.Lett.A
- 1992

### reen,J.Schwarz and E.W itten,\Superstring Theory",Vo1.I,Chap 7 (Cam bridgeUniv

- 1987