Counting states in heterotic SO(32) string theory | A First Course in String Theory
c) Are there tachyonic states in heterotic string theory?
Write out the massless states of the theory (bosons and fermions) …
We have the following well-known bosonic string mass formulae:
— Solutions to K. Becker, M. Becker, J. Schwarz String Theory And M-theory
— Mikhail Goykhman
How come there is an extra at the beginning of the closed string formula?
— Me@2018-12-15 08:59:18 PM
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