Tensionless Strings. Vertex Operator for Fixed Helicity States

Details Tensionless Strings. Vertex Operator for Fixed Helicity States Tensionless Strings. Vertex Operator for Fixed Helicity States

2004-09-03

arxiv.org/abs/hep-th/0409047v1

Europhys.Lett. 71 (2005) 549-555

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, Latex file

Scientific paper

10.1209/epl/i2005-10114-3

The tensionless string theory with perimeter action has pure massless spectrum of higher-spin gauge fields. The multiplicity of these massless states grows linearly. It is therefore much less compared with the standard string theory and is larger compared with the field theory models of the Yang-Mills type. It is important to define nontrivial interaction between infinite amount of massless particles of the perimeter string theory. The appropriate vertex operators were defined recently and I study the lowest order vertex operators and the corresponding scattering amplitudes in tree approximation. I emphasize the special importance of the vertex operator for fixed helicity states.

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