DECEMBER

In this month, we are starting to take the 100,000 data set and make cuts on the data. This data is missing some columns that we had in the 1,000 data set. Our task is to make the columns that were in the 1000 data set in the 100k to have all the information we can use, and then we will start making the cuts that we did on the later set

I went through my last year posting and went through what I did in the first have of last year to refresh my memory. I realized some different ways of doing things just by doing this. Jamie, Derrick and I worked on this at the beginning of last year, and we tried many different approaches to cutting the data to get the plots into manyeyes



I tried transfering the data into the data set by copying and pasting, but I got #num for a lot of the data. I will check with the group to figure out what is happening

For the week of December 10, I started by making different columns with the large 100k events. With different equations, I tried to make different ways to find cosmic rays by just doing the same thing that I did early with the thousand events. The only problem that I have started to notice with such a large number of events is that everything I do when I open up excel runs very slow and frozen at many times. I know that it is because my computer doesn't have a very fast processor, and not a lot of RAM so it will sometimes take a very long time to do a simple task, liking making one column. What I did below for the data sheet is make phi and also add e1+e2/m, which we talked about doing last week. In doing this, we can now hopefully see all of the cosmic rays coming down looking straight down the z-axis.

E1+E2/M--> The reason for doing this makes a lot of sense when you think about it. To start off, there is a E^2=M^2+P^2. If we are assuming that there is not any momentum because we are looking at it from the rest state (Momentum is Mass times Velocity). Because there is no velocity, there will be no momentum. With Energy then equalling Mass, diving a variable by the same value variable should give you one. In doing so, Etotal/Mtotal will give you one. That is the basis for what we were looking for. Once we made the cut, we will now make sort the data to see what particles were around 1. Then, we will add phi one and phi two because adding 1.57 and -.57 should equal 0. Now we are looking for 0. I will now sort the data for this column to look for where the data is zero (Also known as where the cosmic rays will be for the phi angles)