Vertex Operators and Scattering Amplitudes of the Bosonic Open String Theory in the Linear Dilaton Background - High Energy Physics - TheoryReportar como inadecuado




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Abstract: The operator formalism of the first quantized string theory is applied to thestringy excitations in the linear dilaton background. In particular, thenormal-ordered vertex operators in the old-covariant spectrum of the bosonicopen string, which correspond to the physical state solutions of the Virasoroconstraints, are shown to satisfy the conformal algebra. Tree-level scatteringamplitudes among different stringy states are computed using the coherent-statemethod and the modified inner product of the Hilbert space. Decoupling of thezero-norm states, i.e., the on-shell stringy Ward identities are shown to holdfor all tree-level amplitudes under consideration.



Autor: Chuan-Tsung Chan, Wei-Ming Chen

Fuente: https://arxiv.org/







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