PROBING THE HELICITY STRUCTURE OF B-]S-GAMMA IN LAMBDA(B)-]LAMBDA-GAMMA

We investigate the rare decay Lambda(b) --> Lambda gamma which receive s both short and long distance contributions. We estimate the long dis tance contributions and find them very small. The form factors are obt ained from Lambda(c) --> Lambda l<(nu)over bar>(l) using heavy quark s ymmetry and a pole model. The short distance piece opens a window to n ew physics and we discuss the sensitivity of Lambda(b) --> Lambda gamm a to such effects.