The BRST transformations of the string fields of the free open spinning string is analyzed. After expanding the string fields into ghost zero modes the BRST transformations are diagonalized and it is found that in the Ramond sector the physical fields are contained in only two string fields. A minimal covariant classical action for both sectors is constructed. The component expansion of the string fields yields the correct set of physical and Stueckelberg fields which are needed to construct a covariant local action for the corresponding massless and massive states. This is explicitly verified for the first three mass-levels.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics