[b1_ana] TAC/iTAC resp.

[O. A. Rondon]

Hi Karl,

On p. 6, top paragraph,

"Each cycle is independent and are irrelevant" =>
"Each cycle is independent and changes that happen at the end of the
cycle are irrelevant"

P. 8, last parag. of sec. 1.2.6
"...HMS. The affects on the .." =>
"...HMS. The effects on the .."

On the write-up about extra asymmetries, it would be good to have in
[14] the estimated values for A_EW = 8E-5*Q^2 [E155x], and some number
for A_V^d, which I estimated as A_V^d(Q^2=0.8, x=0.56) ~ 7E-4,
unmitigated. It can be made negligible by combining +Pz with -Pz data,
or with Pz ~ 0.

If we are not very confident about A_V^d at the moment, I would agree
with Dustin to just mention the beam-helicity A_PV being A_EW(Q^2< 5) <
~ 4e-4 \cite[P. Anthony et al., E155x, Phys.Lett.B553:18,2003], and what
Wally said about a target-only A_PV.

In the mean time, Ellie could try getting a better estimate for A_V^d
using the formula and figures on F_{LT}^{1-1} from Arenhoevel. But we
need to be aware that A_V^d (Pz-only electromagnetic asymmetry, may
contribute at high x).

Cheers,

Oscar




Cheers,

Oscar

Karl Slifer wrote:
> Hi All,
> 
> Attached please find a revision of Dustin's note.  Mostly I've just
> front-loaded the document with what I think is the most important
> information. So if possible, atleast take a look at the abstract and first
> page.  The rest of the changes are pretty minor typo errors and slight
> trimming of redundant discussions.  One concrete change is that I inflated
> the estimate of relative uncertainty on Pzz with hole burning in the text
> from 10% to 12% to better reflect what is shown in Fig. 1, and I simply
> labeled the two projection plots as Pzz=20% and Pzz=30%, instead of
> with/without hole burning.
> 
> Note: we are still missing the "killer plot" from g2p or other low current
> experiment to back up the pion yield plot from Transversity, but it looks
> like that will take some time to obtain.
> 
> I'm aiming to send the PAC reader response tonight, so please do try to
> take a look beforehand, or let me know if you want more time.
> 
> thanks much,
> 
> -Karl
> 
> ---
> Karl J. Slifer