S. M. Clayton⁸, S. A. Currie⁸, M. Dawid^1,2, E. B. Dees^5,6, B. W. Filippone⁴, W. Fox^1,2, P. Geltenbort⁹, E. George¹⁰, L. Hayen^5,6, K. P. Hickerson⁴, M. A. Hoffbauer⁸, K. Hoffman¹⁰, A. T. Holley¹⁰, T. M. Ito⁸, A. Komives¹¹, C.-Y. Liu^1,2, M. Makela⁸, C. L. Morris⁸, R. Musedinovic^5,6, C. O’Shaughnessy⁸, R. W. Pattie, Jr.¹², J. Ramsey³, D. J. Salvat^1,2,*, A. Saunders^8,3, E. I. Sharapov¹³, S. Slutsky⁴, V. Su⁴, X. Sun⁴, C. Swank⁴, Z. Tang⁸, W. Uhrich⁸, J. Vanderwerp^1,2, P. Walstrom⁸, Z. Wang⁸, W. Wei⁴, and A. R. Young^5,6 ($\mathrm{UCN}\tau$ Collaboration)

• ¹Department of Physics, Indiana University, Bloomington, Indiana 47405, USA
• ²Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47405, USA
• ³Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
• ⁴Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USA
• ⁵Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
• ⁶Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
• ⁷Argonne National Laboratory, Lemont, Illinois 60439, USA
• ⁸Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
• ⁹Institut Laue-Langevin, CS 20156, 38042 Grenoble Cedex 9, France
• ¹⁰Tennessee Technological University, Cookeville, Tennessee 38505, USA
• ¹¹DePauw University, Greencastle, Indiana 46135, USA
• ¹²East Tennessee State University, Johnson City, Tennessee 37614, USA
• ¹³Joint Institute for Nuclear Research, 141980 Dubna, Russia

• ^*dsalvat@iu.edu