From: in%"kamal@wind.phy.bnl.gov" 6-OCT-1997 01:44:51.79 Subj: notes on spin discussion--Parity Violation--10/1/97 Notes on the Spin Meeting of Oct 1: (1) It was agreed that A_ll^PV (= [N(++)-N(--)]/[N(++)+N(--)] ) is in fact proportional to the beam polarization, not the beam polarization squared, as is often assumed. (2) For symmetric final state obervables, A_ll^PV has a fractional error 1/root(2) times that of A_l. (3) The issue of whether the average of the two A_l (i.e. A_ul and A_lu) could improve things significantly was considered, but no definite conclusion was reached. This will be readdressed later. -Basim