Gauge fixing of open bosonic string field theory action of neveu and west

Gauge fixing of the gauge-invariant actions which are proposed by Neuveu and West for interacting point particle and interacting open bosonic string field theories are performed by making use of the Batalin-Vilkovisky approach. The resultant point particle action is found to be the proposed Osp(d, 2|2) invariant action. Interacting open string leads to the proposed action which has Osp(26,2|2) invariance in the zero modes up to order g because we have taken into consideration only the three-string interaction vertex.