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removing first DTF for SigmaKPi lines; adjusting cuts

Marian Stahl requested to merge mstahl_LKPi_SKPi into 2017-patches

Sorry for yet another change to these lines :(

  • It seems that the first DTF was not converging most of the time. The reason could be that the \Sigma^+ flies, and the \pi^0 points to the PV during this fit. If that is true, it would mean loosing many good events.

Retention rates/timing

StrippingReport                                                INFO Event 10000, Good event 10000
 |                                              *Decision name*|*Rate,%*|*Accepted*| *Mult*|*ms/evt*|
 |!StrippingXicpToSpKmPipLine_TIMING                           |  0.5100|        51|  1.529|   4.916|
 |!StrippingXicpToSzKzPipLine_TIMING                           |  0.1900|        19|  2.737|   0.272|
 |!StrippingXiczToSzKmPipLine_TIMING                           |  0.4500|        45|  1.956|   1.191|

Note that the timing now increased significantly for the XicpToSpKmPip line. This is because many more Sigma candidates make it to the final combinatorics stage. Let me know if this is problematic

Edited by Marian Stahl

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