A Precision Measurement of the Neutral Pion Lifetime

09/01/2004 15:12 FAX 757 269 5944 Jefferson Lab STATEMENT OF WORK Dr. Daniel S. Dale Dr. Daniel S. Dale is a spokesperson for the PrimEx Col1aboration which is undertaking to perlonn a high precision measurement of the lifetime of the pi-zero meson in Hall B of Jefferson Lab (E02-103). This effort involves the development of a considerable amount of new scientific instrumentation including a 2000 channel calorimeter, as well as a pair spectrometer and a new total absorption counter. This experiment is c=ntly in the midst of being installed in Hall B with the commissioning with beam scheduled to occur in mid-September. The commissioning phase wi11be fol1owed by a period of production data taking lasting most of October and November of 2004. Dr. Dale has been involved in the experimental design and planning of this experiment from the beginning. He and his group at the University of Kenrncky were responsible for the design, con· struction and commissioning of the PrimEx pair spectrometer and its associated electronics, and have played a major role in design and construction of the total absorption counter and the PrimEx Hybrid Calorimeter (HYCAL). The work under this agreement will include the development of procedures and scheduJes for the experiment. In conjunction with the other spokespersons, Dr. Dale will be responsible for the IDtegration of the various components of the experiment. Specifically, he will ensure that these components function together properly, meet space and power limitations, and satisfy Lab safety concerns. He will directly supervise post docs and students working at Jefferson Lab doing software design, electronics. and a.myriad of other critical tasks in support of these activities. He will also help in coordinating all related activities with the Jette.rson Lab staff. Tbe tasks will be completed in 3-months starting from September 1. 2004. A Research Report summarizing the activities performed and completed under this order shall be submitted to Mr. Mike Syptak. Jefferson Lab. not later than 15 days after the completion date.