[Hallc] Pion-LT call for shift workers

Garth Huber huberg at jlab.org
Thu Apr 21 18:10:17 EDT 2022


Dear Collaborator:

First off, we would like to thank the 16 run co-ordinators and the 66
collaborators who took shifts on our Pion-LT experiment (E12-19-006) "Study of
the L-T separated cross section at 11 GeV and measurement of the charged pion
form factor to high Q^2" during the fall 2021-22 "low epsilon" run and made it
a success.

We are now excited to announce the call for shift workers for the final "high
epsilon" part of Pion-LT that has been scheduled to run between June 8 - August
6.

The shift sign up page is available at:
https://misportal.jlab.org/mis/apps/physics/shiftSchedule/index.cfm?experimentRunId=HALLC-PIONLT-2022

The shift requirement (covering both the "low" and "high epsilon" portions of
E12-19-006) for co-authorship is 15.  Owl shifts count 1.5, so this requirement
can be satisfied by 10 owl shifts if you prefer.  Note that the shift
requirement for past/current run coordinators and collaborators has been
reduced taking into account their contributions.

We know that many colleagues wanted to contribute to the fall 2021-22 "low
epsilon" run, but were unable to travel to JLab.  We really hope that you will
be able to travel to JLab this summer and look forward to seeing you there!

This is an important experiment that has motivated the 5.50 degree capability
of the SHMS, and has been identified by NSAC as one of the flagships of the
JLab 12-GeV program.  If the past experience of our Fpi-2 experiment is any
guide, this experiment will produce many high impact papers. The fall 2021-22
"low epsilon" run was very productive, and by the end of the extended data
taking on February 8, we had completed data taking for 47 physics settings, as
well as numerous calibrations.  L/T-separations of course require data at
multiple epsilon points, and thus the final "high epsilon" part of the
experiment is essential for extracting the physics.

Please sign up for shifts if you are able - we greatly appreciate your help!

Thanks and Regards,
Garth, Tanja and Dave

-- 
Dr. Garth Huber, Dept. of Physics, Univ. of Regina, Regina, SK S4S0A2, Canada.
tel: 1-306-585-4240. fax: 1-306-585-5659.


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