Affiliation: | (1) Space Science Center and Physics Department, University of New Hampshire, 03824 Durham, NH, USA;(2) High Energy Physics Division, Argonne National Laboratory, 60439 Argonne, IL, USA;(3) Present address: Physics Department, Texas A&M University, 77843 College Station, TX, USA;(4) Texas A&M University, 77843 College Station, TX, USA;(5) New Mexico State University, 88003 Las Cruces, NM, USA;(6) Present address: High Energy Physics Division, Argonne National Laboratory, 60439 Argonne, IL, USA |