Week+of+January+7th,+2013

Today I arrived at Quarknet at 3:45. Dr. L was waiting in the lab for us to arrive. Once we were ready to begin, we started a discussion and it advanced quickly. We discussed why particles we thought were cosmic rays only appeared above 40 GeV. We discussed several ways to try to get rid of the "phantom" particles that appeared below 40 GeV so that we could get a better reading of what was happening in the data sets we were looking at. The discussion we took part in lasted the majority of the class, and once we were finished with the actual discussion we had to work on uploading data to many eyes. I started this on my MacBook but as I began to upload data, I would get error screens and I encountered many other problems like my data being too large or also experiencing problems with many eyes itself. Once I was told to use the computers in the lab, I was able to do everything properly and quickly. I used the parameters that we discussed in class, cutting the data into a new graph to get rid of phantom particles. This graph shows the events displayed with an X Axis of EvNo and a Y Axis of Q1*Q2, with a dot size of mass. The picture above shows an incredible amount of numbers as negative events. While there are only a fraction of the number in the positive range, all of which are above 1.0. After doing this I looked at a graph of events with an X Axis of Mass, and a Y Axis of eta1 following the actions done by Grace. This graph shows a very large cluster of particles above 40GeV. These particles are also positive and negative.