摘要

We investigate the special case of quintic interactions for massless higher spin gauge fields using the string-theoretic vertex operator construction for higher spin gauge fields in Vasiliev's framelike formalism. We compute explicitly the related five-point interaction vertex in the low energy limit of string theory and find that the structure of the quintic s(1) - s(2) - s(3) - s(4) - s(5) higher spin interaction gets drastically simplified and localized if (a) the spin values satisfy the constraint s(1) + s(2) + s(3) = s(4) + s(5) + 2 (and, more generally, if the sum of three spin values roughly equals the sum of the remaining two) and (b) one of the spin values s(4) or s(5) is sufficiently small. In this paper, the explicit computation is done for the case s(4) = 4.