Dear Abhay,
    You seem to have left out the W^\pm measurement in the PHENIX 
central arms with electrons, which was fully discussed in our proposal 
in 1995. This is given in PHENIX notes PN 63, which is the first 
proposal Spin Physics at RHIC 14-Aug-1992, and in the UPDATE to the 
proposal on 9/2/2003 (PN 95). It would be nice to include this. I know 
the DOE review criticized us in that things hadn't changed since our 
original proposal. Well that's true in the case of the W because 
everything we said there turned out to be accurate including the famous 
En'yo factor of 5 from the isolation cut, which we verified in direct 
photon production. The only thing we need to do this physics is a run 
at 500 GeV [the two arguments for running at 500 GeV are W physics and 
ability to go to lower x in the perturbative pT region] with the 
planned luminosity, and a change in full scale of the PHENIX EM cal 
from ~25 to ~50 GeV. Also note that since this is a single particle 
measurement, the acceptance is huge, 13%. All the arguments for flavor 
identified parity violating (as well as parity conserving) structure 
function measurements using W's started with this idea, which we can 
still do as proposed in 1992, so please include it. The disadvantage of 
this measurement in the central arms is that it is at fixed 
x=xT=Mw/250=0.16, that's why we brought the muon arm in the game which 
has the advantage that you can get the W's moving and thus vary x1 and 
x2. You can see what Don Geesaman still calls `The Tannenbaum plot' at
http://www.phenix.bnl.gov/~sapin/spin95.ps.gz
you can see the discussion on pp 17-20 of this document.
Of course, since then Naohito Saito has made an improved plot and that 
is the one that is now shown everywhere. However, as far as I can tell, 
everything the we proposed in 1992, discussed at the principal review 
in 1995 and wrote up in 1995 is still correct, so please don't forget 
it and please use it.
Mike Tannenbaum