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Comparison of RefMult and Vertex Finding Algorithms with and without PCTs

This study investigates the difference in RefMult and primary vertex reconstruction between Minuit with and without PCTs, as well as its comparison with PPV without PCTs. Results show that vertex finders tend to agree in high multiplicity events, while PPV had lower efficiency in finding vertices. The analysis questions whether the events discarded by PPV were actually bad events or if Minuit correctly found good events. The study also examines the ratios of vertices and RefMult, along with the difference in primary Vz among the algorithms.

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Comparison of RefMult and Vertex Finding Algorithms with and without PCTs

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  1. Difference in RefMult between Minuit with (original) and without PCTs Event by event comparison where both vertex finders found a vertex Vertex finders tend to agree in high multiplicity events

  2. Difference in RefMult between Minuit with (original) and PPV without PCTs PPV had a lower Efficiency at finding vertices. Were these events good events that Minuit found? Or were they bad events that PPV correctly discarded?

  3. # Vertices and RefMult ratios

  4. Difference in Primary Vz between Minuit with (original) and without PCTs

  5. Difference in Primary Vz between Minuit with (original) and PPV without PCTs

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