Notes on RSC Meeting 5/6/08, Discussion on Spin Plan

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We recognized at the start that the meeting needed to be used to discuss 
the overall presentation and to coordinate better the different sections.  
At the end of the meeting we decided to prepare semi-final versions of the 
chapters to post by next Wednesday night (5/14).  
We will spend Thursday 5/15 comparing coverage and address any issues.
We will meet Friday 5/16 with the goal to go thru each section in detail 
toward a final document. We hope that the version at the end of the meeting 
will be sufficiently close to the final version that Steve Vigdor will be 
able to use the draft form to prepare toward final submittal to DOE by 
the end of May.  We will ask him for his view on this.
(The document at this time is not ready.  We expect that it will be 
largely ready on 5/16, but that there will be coordination and presentation 
issues that we will still need to address.)

We are basing the plan on an average of 10 spin weeks per year. 
This is consistent with both experiment BUP 5 year plans.

Chapter by chapter notes:

Introduction: After considerable discussion, we have decided to use the 
present approach. There is still some work to do to coordinate between 
the sections, and some work on presentation/wording. 
We need to characterize the expected gain in precision from 200
GeV running.  We need to address better the issue of the x coverage.

RHIC: We will use P_max = 70%. The appendix needs to explicitly cover 
how we expect to reach L increases.  There need to be words on the 
lower P in 2008 (as seen in table).  The spin flipper is necessary for 
the program, and needs to be included.  We would like some discussion, 
mainly in the appendix, on increases in L beyond the present goals. 
It was noted that this is focused on 200 GeV running 
(direct photon, Drell-Yan), but also for future improved W measurements. 
Polarimetry needs to be included, probably one figure
(A_N) and results-Yousef and Sasha to write.  

Experiments: new short section. To be written by Sasha and Carl. 
Mainly introduce recorded luminosity. Upgrades toward W will be in W section.

Gluon: chapter needs to be more self-contained (each chapter should be 
readable on its own). Main issues: Emphasize dihadron/dijet sensitivity. 
500 GeV needs more quantitative basis.
Discussion of x range.  Where can we go and why.  
Where can eRHIC go, it this is useful to bring in. 
Global fit discussion-constraints by Phenix and Star complementary.
Very forward photon + jet.  Issue of fragmentation background, 
and check with cross section, delta phi, A_N of fragmentation background. 
Direct photon discussion (later at high L?).
Assume spin flipper?

W: Self contained.  Issue of making the underlying physics clear 
(note presentation of rapidity rms from different detectors can be expanded). 
Avoid giving idea that we are choosing between a finite set of models, 
vs. making a fundamental direct measurement.  Issue of model range for
Delta dbar does not indicate that our measurements will contribute much, 
which we doubt. Will use models spanning "available" space.  
Use only 300 pb^-1.

Transverse:  essentially done.  Coordinate with introduction 
(we repeat a number of things at this point).

Summary: no run table, probably 1 paragraph "outlook".

Executive summary: still 1-2 pages with no figures. 
Discussion of making W responses to the points that Steve emphasized 
more explicit. Would like to make quantitative statement on dijet-Delta g. 
Include statement about running time at end.