Sphenix-calibration-l mailing list

[Takao Sakaguchi <takao AT bnl.gov>]

Dear Jamie

 We, calibration TF, appreciate that the BUR TF are working hard
for finalizing a beam use proposal for the PAC meeting in Sep.
Here we would like to provide you with our view on the run plan.

 From the calibration point of view, it is essential to have decent
p+p dataset prior to performing precision physics in A+A collisions
which we are aiming for in sPHENIX. The p+p dataset provides
handles on energy scale and resolution of calorimeters that are
essential for jet-photon correlation measurement, tracking resolution
and TPC distortion correction for Upsilon spectroscopy, and etc.

 Accordingly, we think we won't be able to publish results from the
A+A data taken before the high statistics p+p data are obtained.
We note that the quality assurance of the A+A data may not be
performed well enough either. The peripheral A+A collisions may be
useful, but the statistics will be too low to perform good enough
calibration for rare probes such as jet-photon correlation.

 We appreciate that you take this view into account on finalizing
the run plan. The calibration TF members have been encouraged
to join the BUR discussion today if they can make.

Best,
Christof and Takao for the calibration TF