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reconstucted pt in simulation with ideal TPC alignment

Updated on Fri, 2011-03-11 03:11. Originally created by mnaglis on 2011-03-11 00:44.

Primary pt - blue

Global pt- red

tree_pip->Draw("mMatchedPairs.mPtGl>>hpip_gl(500,0,10)","mMatchedPairs.mGeantId==8 && mMatchedPairs.mPtGl>0 && mMatchedPairs.mIsPrimary == 1 &&  mMatchedPairs.mNCommonHit > 15");

tree_pip->Draw("mMatchedPairs.mPtPr>>hpip_pr(500,0,10)","mMatchedPairs.mGeantId==8 && mMatchedPairs.mPtPr>0 && mMatchedPairs.mIsPrimary == 1 &&  mMatchedPairs.mNCommonHit > 15");

 

It is possible to plot same distributions from StiPulls (mTrksG.mPt && mTrksP.mPt) -, but there will be no way to select simulated tracks.

One can switch off all physical processes in GEANT for the clean test...

Same in log scale

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