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University of Chicago, College students

Emily Casey

      University of Chicago, Class of 2012; B.A. in Physics

      Emily worked on a smaller chamber studying the muon decay, and wrote her Honors Senior Thesis on the readout of crystals that are used in calorimeters of all these detectors.

CsI Time Resolution Study with Custom Built Digitizer for the KOTO Experiment

Nikita Nangia

      University of Chicago, Class of 2013; B.A. in Physics and Mathematics

Ben Brubaker

      University of Chicago, Class of 2011; B.A. in Physics
      Data reconstruction

      Ben worked on a program which reconstructed the kinematic information of photons produced as a result of a K-Long decay. The program looked for patterns in the energy deposited in different parts of the detector apparatus to determine where and at what incident angle the photon struck the detector. This allowed us to use this information to determine whether these photons really did originate in a rare Kaon decay.

Photon Angle Reconstruction for the KOT0 Experiment at JPARC

Brian Dressner

      University of Chicago, Class of 2012; B.A. in Physics and Mathematics
      Electronic design

      The walls of the cylinder are collecting basic data about the tiny particles that hit them and about the intensity. Therefore, for each bump, we get a curve similar to gaussian, represented by many points. Brian's work treated these and provided parameters of each collision.

Paul Rekemeyer

      University of Chicago, Class of 2011; B.A. in Physics
      Electronic design and Detector characterization

      Paul modeled the interactions caused by the photons. He worked on a program that used the simple data about the photons and then produced more general results. It determined the time resolution of the plastic scintillator. His work was also an upgrade for the calorimeter.

Eugene Lee

      University of Chicago, Class of 2014;
      University of Chicago Laboratory Schools
      Measurement model

      Eugene worked on the measurement model that Elizabeth Boulton started. Through a simulation of the experiment, we can assume what our degree of certainty would be.

      Ivan TEO (2009),
Method for Measurement of Photon Incident Angle in CsI Calorimeter

      Hui BI (2007),
Search for KL -> 3 γ

REU Students

      Adrian VALVERDE (2011),

      Michigan State University, Class of 2012; B.S. in Physics and Mathematics
      Measurement model

      Adrian continued research on increasing the acceptance of the KOTO detector. He simulated the effect of electromagnetic showers to determine the impact of self-vetoing events and the possibility of using time of flight differences to identify self-vetoes.

Increasing Acceptance in the KOTO detector

      Elizabeth BOULTON (2010),

      Smith College, Class of 2011; B.A. in Physics
      Measurement model

      In July 2010, Elizabeth created a program that visualizes the cylinder measuring the rate of the decay K0L &rarr &pi0 &nu &nu . Before, only the ends of the cylinder were supposed to measure how many and how much energy do the neutrinos have. Elizabeth's simulation shows how important it is for the result of the experiment to use the cylinder sides for measuring as well.

Designing a High Acceptance Detector for a CP Violation Experiment

      Kelsey MORGAN (2007),
Design of a Gaussian Filter for the J-PARC E-14 Collaboration

      Sara M. WATERS (2005),
A Study of Signal/Noise Improvement of the CsI Array for the Search of Rare Kaon Decay KL -> π 0 ν ν

Group photo

People working in CPV Group during summer 2010

People who worked on this project in summer 2010.
Upper row: Paul Rekemeyer, Professor Wah, Brian Dressner, Ben Brubaker; lower row: Elizabeth Boulton, Jiasen Ma.

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