Physics Shift Report
Start Date: 09-24-2017
End Date: 09-28-2017
Start Run: 9683
End Run: 9772
Physics shifter: Tanaz A. Mohayai
Summary of Runs¶
|9683 - 9699||Emittance reduction - LH2|
|9701 - 9714||LH2 filling - 200 MeV/c optimisation, scaling from 3-200+M3-Test1|
|9715 - 9716||LH2 filling - 200 MeV/c optimisation, momentum tuning|
|9717 - 9721||LH2 filling - momentum scan|
|9717 - 9720||LH2 filling - momentum scan|
|9721||Beamline tuning at 140 MeV/c for better matching - LH2 full - Solenoid mode|
|9723 - 9734, 9736||Emittance reduction - LH2 full - Solenoid mode|
|9735||Beamline tuning at 140 MeV/c for better matching - LH2 full - Solenoid mode|
|9736 - 9747||Emittance reduction - LH2 full - Solenoid mode|
|9749 - 9771||Emittance reduction - LH2 full - Solenoid mode|
|9772||Scattering study, LH2 full - Cooling Channel magnets OFF|
Elog, CDB, and Reconstruction¶
Elog entries are ok.
CDB uploaded ok with the exception of runs 9709, 9722, 9731, 9746, 9748, 9753.
Online reconstruction is ok with the exception of runs 9709, 9722, 9731, 9734, 9746, 9748, 9751, 9753.
TKD had poor effeciency, and there were very few tracks, in particular in Station4 (see SciFiReduce_TKD_triplet_xy.png).
This feature has been identified and reported by C. Rogers (https://micewww.pp.rl.ac.uk/projects/analysis/wiki/2017-09-23_physics-shifter). It has been appearing in runs 9683-9692 and the experts have now fixed it (see SciFiReduce_TKD_triplet_xy_9733.png).
The issue with the 9740 live TOF space point reconstruction (see TofReduce_tof_spx-9740.png) seems to have been fixed.
|2017-02-2 3-200-9760||||541869||491778||105515||1 hrs 22 mins||152295||5345|
|2017-02-2 6-200-9761||||532743||691559||378773||1 hrs 27 mins||192582||11358|
|2017-02-2 10-200-9763||||664063||1137000||340190||1 hrs 45 mins||235176||19529|
C. Rogers noticed a bump in the TKD momentum at ~ 50 MeV/c (below) in run 9726 (red is all particles, black is muons in tkd_p.png).
The PzvsPt of the same run is in PzvsPt_2.png (muons only). A. Dobbs believes this to be a reconstruction issue (particularly for the new MAUS v-3.0.0).