Zero-norm states and stringy symmetries

Chuan-Tsung Chan, Pei-Ming Ho, Jen-Chi Lee, Shunsuke Teraguchi, Yi Yang
2006 Journal of Physics, Conference Series  
We identify spacetime symmetry charges of 26D open bosonic 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 various evidences to support this identification. These include massive sigma-model calculation, Witten string field theory calculation, 2D string theory calculation and, most importantly, three methods of highenergy stringy scattering amplitude calculations. The last calculations
more » ... alculations explicitly prove Gross's conjectures in 1988 on high energy symmetry of string theory.
doi:10.1088/1742-6596/33/1/045 fatcat:6oqszes6afd4bog4gp3h37qijm