Student Abstracts: Nuclear Science at TJNAF

Object-oriented Analysis Code for Hall A Vertical Drift Chambers. JONATHAN ROBBINS (University of Richmond, Richmond, VA 23173) JENS-OLE HANSEN (Thomas Jefferson National Accelerator Facility, Newport News, VA 23606) .
The high-resolution spectrometers in Jefferson Lab's Hall A use vertical drift chambers to determine charged particle tracks. The current analysis code for the vertical drift chambers is difficult to maintain and modify, which has prompted the development of an object-oriented version, which will be easier to maintain and more able to adapt to changes in the detector configuration. However, the object-oriented approach involves using a slightly different algorithm than ESPACE, which could lead to different results. In this project, a preliminary version of an object-oriented analysis program for the vertical drift chambers is created and its results are compared to the existing software to determine the impacts of the differences in the reconstruction algorithms. In addition, the algorithms themselves are compared and minor differences in track reconstruction techniques are reported.