Notes on telephone meeting, Jan. 18 2005

There is a new version of the draft on the web.
(Main changes in section 2)

Section 2. discussed science section of plan
	--new x vs. p_T plot
		--consider x vs. Q^2 plot with Q^2=p_T^2 for photon, pi
		and Q^2=m^2 for heavy quark, W

	--which global fit to use?  AAC shows both positive and negative
	Delta G, so it is easier to use to compare sensitivities; show
	differences in pdfs for different global fits in a figure; briefly
	describe the differences

--For sensitivities, use 100 pb^-1 recorded, P=0.7 for 200 GeV and
300 pb^-1 for 500 GeV for now, for Phenix.
For Star use this for jets and such (TPC), and 190 pb^-1 at 200 GeV
and 500 pb^-1 for 500 GeV for fast detectors only
(see introduction of section 5).

	--we also need to make a table that includes other factors, for each
	probe that we show.  Factors need to include p_T range and selection
	efficiency, so that the experiment takes data at the claimed live
	time.  This table will be included in section 5.  (I will prepare
	this, and then each expt. needs to fill it in.)

	--we plan to use 70% of maximum luminosity for the sensitivities
	and we will adjust the years spent at 200 and 500 to get this.  I am
	sure we will revisit this later.

--suggested that we show some intermediate sensitivities as program
progresses.

--some discussion on W--outline.  Will have this draft for our meeting next
week.

--New introduction for transverse spin.  Akio, Les, Matthias, Jianwei to
work on draft for this section.

2.7 section (what else is going on)--We thought that we can use this section
to describe the experiments and briefly discuss their contributions and
limitations, with no figures--we would point to the sensitivities on the
various figures presented earlier (Delta G, Delta qbar, transverse spin).
Ernst may have more or other suggestions.

2.8 Elastics--Needs pizzaz.  Include carbon, proton plots and hadronic spin
flip question.

2.9 Future ideas section.  Mike's and Vladimir/Sudoh's need to be folded
together.  Mike's table 2 should drop 650 GeV, and 100 fb^-1.  Claims need
to be checked.

3. Accelerator section--In good shape.  There will be a new fig. 21, and it
will include a minimum at 1/3 max.  Polarimetry will probably add the idea
presented by Anatoli Zelinski Friday (and advocated by Sandro Bravar)
--a new polarimeter for each RHIC beam based on a thick unpolarized
hydrogen jet.  This is an attractive way to deal with the problem of
radiation damage for the present carbon polarimeter detectors and
uncertainty in the carbon energy loss in these detectors.

--Hal pointed out (Friday) that we need words that state that the
polarimeters will work at 250 GeV too.

4. Experiments section.  We expect a Phenix draft/outline by next week, but
complete sections only by the week after (Jan. 31).

Our schedule:

Jan. 25, 1700 EDT--telephone meeting to discuss mostly section 2 (expect
progress).  Also Phenix part of section 4.

Jan. 31, 1700 EDT--request that complete sections be sent to Yuji to put
on web--this should result in a complete 1st draft.

Feb. 1, 1700 EDT--Discuss 1st draft.  Possibly soon after send to expts. for
their input.

Feb. 3--likely date for RHIC spin collab. meeting and discussion of plan
(several people cannot make Feb. 4)

It was a very good meeting.

					Gerry