Sphenix-calibration-l mailing list

["Perepelitsa, Dennis" <dvp AT bnl.gov>]

Dear Takao, Aaron, Justin, Spencer and all,

Thanks a lot to the Calibrations TF for thinking through these important issues.

Given the compressed timescale, we encourage you to attend the BUR discussion tomorrow at 12pm BNL time, with zoom / indico coordinates here: 

Date:    Friday, August 14, 2020 at 12 pm ET

Zoom:  https://bnl.zoomgov.com/j/1603863659

Indico:  https://indico.bnl.gov/event/9139/

Perhaps a member of the Taskforce group can prepare a few slides which summarize your most important feedback? 

I think it will be much more efficient to have a real-time discussion rather than an asynchronous one over email.

Dennis

On Aug 13, 2020, at 11:48 AM, Spencer Klein via sPHENIX-calibration-l <sphenix-calibration-l AT lists.bnl.gov> wrote:

Hi Takao, all:

I would suspect that running pp the first year will not be politically viable.  But, it is fine to ask, and the draft email is fine.

There is one typo 'descent' -> 'decent'

Spencer

On 8/13/20 09:53, Takao Sakaguchi via sPHENIX-calibration-l wrote:

Dear all,

 Following the discussion at the calibration TF executive meeting
last Tuesday, I made a draft to provide our view to the BUR TF.

 Please give your feedback. We should probably send it to the
BUR taskforce first in the morning tomorrow.

Takao
------------------------

 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 descent
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 our view into account for finalizing
the run plan to be proposed to the PAC.

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Dennis V. Perepelitsa

Assistant Professor, Physics Department

University of Colorado Boulder