sPHENIX cold QCD topical group

[David Morrison <morrison AT bnl.gov>]

Dear sPHENIX cold QCD'ers,

We received this homework question this evening from the chair of the PAC, John Harris:

Question to STAR and sPHENIX:
Please provide us with the plots (from the literature? from recent conference talks by theorists? or from your own efforts?) that support what you see as a crisp example of how a specific pAu measurement (either polarized or unpolarized) made in the closing years of the RHIC program can be compared to which specific future eA measurement from the EIC, and what this comparison can teach us.  Which is to say please share what you see as “the money plot” making the case that a specific pAu measurement is particularly important to enhancing the science impact of the future EIC program.  

The context is that STAR argued in general terms during the PAC presentations that p+Au data in Run-24 is critical for understanding key EIC measurements.  Saturation and universality were mentioned.  When pressed on this point, however, they didn't have a specific plot to show. 

If we have such a plot and it's particularly compelling, we could include it in our answer to this question.  We would need to have it before about 8am ET on Tuesday morning for it to be useful. 

Regards,
Dave

-- 
David Morrison  Brookhaven National Laboratory  phone: 631-344-5840
                Physics Department, Bldg 510 C    fax: 631-344-3253
                          Upton, NY 11973-5000  email: dave AT bnl.gov