@article{c90cf4a5a187413e884deb1a5a4b440a,
title = "A minimal covariant action for the free open spinning string field theory",
abstract = "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.",
author = "Dat{\'e}, {G. D.} and M. G{\"u}naydin and M. Pernici and K. Pilch and {Van Nieuwenhuizen}, P.",
note = "Funding Information: During the past year there has been considerable interest in the problem of constructing a covariant field theory for strings. A convenient approach is to use the BRST formalism \[1-7\],1 . In this letter we will use the BRST formalism to analyze the free open spinning string field theory. One can either start by constructing a BRST invariant quantum action \[1\] or one can directly construct a classical action \[7\].I n the former (quantum) case the kinetic operator K of the quarltum action is of the formK = \[Q, O} where Q is the BRST charge and O is a suitably chosen operator. The BRST transformation rules are used to identify the physical fields (including the Stueckelberg fields needed for the construction of a local classical action), the ghost and antighost fields, and the auxiliary fields needed for the nilpotency of Q. The classi- * Supported in part by NSF Grant PHY 81-09110 A-01. Present address: Weizmann Institute of Science, 76100 Re-hovot, Israel. 2 Present address: Lawrence Livermore Laboratory, Liver-more, CA 94550, USA. 3 Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. 4 On leave from the University of Wrodaw, Wroclaw, Poland. *l A large number of papers discussing other approaches to covariant string field theory exist, and we are studying their relation to the BRST approach. In this article we on-ly discuss the BRST approach.",
year = "1986",
month = apr,
day = "24",
doi = "10.1016/0370-2693(86)91528-5",
language = "English (US)",
volume = "171",
pages = "182--188",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "Elsevier B.V.",
number = "2-3",
}