H. W. Grießhammer⁴, D. Hornidge⁵, C. R. Howell^1,2, S. Jia¹, S. Estupinan Jimenez⁶, H. J. Karwowski^7,2, M. A. Kovash⁸, K. K. H. Leung⁶, M. Lewis⁴, Y. Liu^1,2, D. Markoff^3,2, C. Martin^1,2, J. McPherson⁹, R. Mendez^1,2, S. F. Mikhailov^1,2, D. R. Phillips¹⁰, M. H. Sikora^4,2, N. Walton^1,2, J. Wang^1,11, Y. K. Wu^1,2, B. Yu^1,2, and Z. W. Zhao^1,2 (Compton@HIγS Collaboration)

• ¹Department of Physics, Duke University, Durham, North Carolina 27708, USA
• ²Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
• ³Department of Mathematics and Physics, North Carolina Central University, Durham, North Carolina 27707, USA
• ⁴Institute for Nuclear Studies, Department of Physics, The George Washington University, Washington, DC 20052, USA
• ⁵Department of Physics, Mount Allison University, 67 York Street, Sackville, New Brunswick E4L 1E6, Canada
• ⁶Department of Physics and Astronomy, Montclair State University, Montclair, New Jersey 07043, USA
• ⁷University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27516, USA
• ⁸Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
• ⁹Department of Chemistry and Physics, Longwood University, Farmville, Virginia 23909, USA
• ¹⁰Department of Physics and Astronomy and Institute of Nuclear and Particle Physics, Ohio University, Athens, Ohio 45701, USA
• ¹¹Department of Physics, Universität Hamburg, Hamburg 20146, Germany

• ^*Contact author: jingyi.zhou@duke.edu