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This page is intended as a portal to information about the processing of the data taken during the summer of 2021.

Data Taking

Information about the run can be found in the 2021 Run Spreadsheet on the HPS Run Wiki. 

Reconstruction Passes

A first pass reconstruction, pass0, will be performed using a tagged release of hps-java: Release 5.1 Release · JeffersonLab/hps-java (github.com).

The production version of the jar file can be downloaded directly from https://github.com/JeffersonLab/hps-java/releases/download/hps-java-5.1/hps-distribution-5.1-bin.jar . 

Events can be reconstructed with the following command line:

java -cp hps-distribution-5.1-bin.jar org.hps.evio.EvioToLcio -x /org/hps/steering/recon/PhysicsRun2021_pass0_recon_evio.lcsim -r -d HPS_Run2021Pass0_v1 -DoutputFile=outputFile inputFile

Note that data taken between runs 14624 and 14673 were accumulated at the single-pass energy of 1.92GeV, so the detector HPS_Run2021Pass0_v1_1pt92GeV should be used when reconstructing those events.

More details of the pass0 reconstruction can be found here.

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