sPHENIX cold QCD topical group

[Ralf Seidl <rseidl AT rcf.rhic.bnl.gov>]

Dear all,

as many of you have heard over the last several weeks, we had been asked 
to prepare another spin/coldQCD plan for DOE medium energy from all RHIC 
experiments involved in such physics.
Please find the latest version of the document attached and let us know 
if you have any urgent comments that need to be addressed. This document 
is in large part based on the white paper that we had prepared last year 
for the NSAC long range plan exercise and mostly differs in updates of 
newer measurements, etc. We had initially not included explicit sPHENIX 
projection plots as the situation with the expected luminosities was 
rather unclear and we felt too many differing numbers would be rather 
confusing. Upon requests by the current ALD (Hayan), we have just added 
those projections again and following conversations with Jamie, Dennis 
and others, we decided to stick with the initially projected 
luminosities of 62/6.2 pb-1 and 57% polarization to avoid the concerns 
mentioned above (even though these numbers are very unlikely to be 
achieved given the CAD projections and running time).
Tomorrow (EDT), we will then send it to Elke who will eventually send it 
to DOE. At this point this document is not meant to be publicly 
available and further comments can be addressed before that will 
eventually happen (if we decide to do so).

Please also note that in addition, there is also the separate workforce 
and milestone document for which Caroline had accumulated the 
information by all groups involved in spin/coldQCD activities at RHIC.


Regards,

Sasha Bazilevsky, Caroline Riedl, and Ralf Seidl

Attachment: RHIC_Spin_Plan_2024.pdf
Description: Adobe PDF document