Changing a massless closed-string polarization by a momentum-longitudinal tensor changes the integrated vertex by a worldsheet total derivative, equivalently by a BRST-exact state. The corresponding target-space transformations are linearized diffeomorphisms and two-form gauge transformations.

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  1. Massless closed-string vertex operator
  2. Integrated string vertex operator
  3. String vertex operator
  4. Polyakov path integral
  5. Polyakov action
  6. Bosonic string theory
  7. String theory
  8. Branch of physics
  9. Physics
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