Estimate of the anapole moment of an exotic nucleus

Using the information on the nuclear structure of exotic neutron-rich halo nucleus Be-11, we evaluate the parity violating anapole moment in its groun d stale. The resulting value kappa(Be-11) = 0.17 is fifteen times bigger th an the typical value of the anapole moment of a normal nucleus of the same mass, and in fact exceeds by few times anapole moments of any known neutron -odd nuclei (e.g., kappa(Be-11) > 2 \ kappa(Pb-207)\). It is also few times bigger than the neutral current contribution to the lepton-nucleus interac tion. (C) 2001 Elsevier Science B.V. All rights reserved.