# D-brane States and Disk Amplitudes in OSp Invariant Closed String Field Theory - High Energy Physics - Theory

Abstract: We construct solitonic states in the OSp invariant string field theory, whichare BRST invariant in the leading order of regularization parameter $\epsilon$.We calculate the disk amplitudes using these solitonic states and show thatthey describe D-branes and ghost D-branes.

Author: Yutaka Baba, Nobuyuki Ishibashi, Koichi Murakami

Source: https://arxiv.org/