Event Selection

• BETA2 Event
• Cluster is not a noisy block
• Cherenkov TDC cut
• Energy cut (specified)
• Phi cut -0.4 to 0.4

With the additional Cherenkov ADC cut, 0.5 to 1.5 electrons, there asymmetry appears to always increase showing that this cut is removing many background events. See green points

Looking at the asymmetries from mark, the asymmetries with an energy cut of 1300 MeV are larger than those with a lower energy cut.

Perhaps the higher energy cut is less diluted due to the energy dependence of the background and thus higher?

Here is the parallel 5-pass asymmetry (with limited statistics) and ignoring any phi dependence

	Name	Last modified	Size	Description
	Parent Directory		-
	compare_asym_para59_..>	2015-01-09 17:56	18K
	compare_asym_para59_..>	2015-01-09 17:56	19K
	compare_asym_para47_..>	2015-01-09 17:56	21K
	compare_asym_para47_..>	2015-01-09 17:56	21K
	combined-asym.png	2015-01-09 17:56	21K
	compare_asym_para59_..>	2015-01-09 17:56	26K
	compare_asym_para47_..>	2015-01-09 17:56	27K

• Which target pols are used by mark?
• Missing runs. Compare to "good list"
• Convince collab all inputs are similar.
• Montecarlo TDC
• Montecarlo vs Data (yeilds)
• Develop comparison graphs of thrown vs reconstructed.