Position Resolution Study
From Hall A Wiki
Before we made any corrections to it, a count of the difference between measured path and predicted path using the other 2 gems
Using a slope vs difference plot, we noticed a correlation that should not have been there.
We decided that our Z distance (distance between gems) was off. This could have been due to human error or not know where exactly a partical interacts with the gas. Using RMS VS %Z distance we got the following.
Using the parameters, we can concluded what the lowest Sigma was and adjusted the the Z distance. Our final difference looked like this.