Stable relative Bessel distributions on GL(n) over a quadratic extension

We study regularized periods of Eisenstein series over unitary groups. They play an important role in the study of unitary periods of cusp forms. A stabilization is used to express the periods in terms of L-functions. Thanks to recent developments of Jacquet and Lapid, we obtain certain Bessel identities that generalize identities obtained by Lapid-Rogawski. These identities are applied in "Compact unitary periods" by Lapid and Offen.