@article{65105edfe6814072a8f3a0705c0a1cb6,
title = "Cyclotron radiation emission spectroscopy of electrons from tritium β decay and Kr 83 m internal conversion",
abstract = "Project 8 has developed a novel technique, cyclotron radiation emission spectroscopy (CRES), for direct neutrino mass measurements. A CRES-based experiment on the beta spectrum of tritium has been carried out in a small-volume apparatus. We provide a detailed account of the experiment, focusing on systematic effects and analysis techniques. In a Bayesian (frequentist) analysis, we measure the tritium endpoint as 18553-19+18 (18548-19+19) eV and set upper limits of 155 (152) eV (90\% C.L.) on the neutrino mass. No background events are observed beyond the endpoint in 82 days of running. We also demonstrate an energy resolution of 1.66±0.19eV in a resolution-optimized magnetic trap configuration by measuring Kr83m17.8-keV internal-conversion electrons. These measurements establish CRES as a low-background, high-resolution technique with the potential to advance neutrino mass sensitivity.",
author = "\{Project 8 Collaboration\} and \{Ashtari Esfahani\}, A. and S. B{\"o}ser and N. Buzinsky and Carmona-Benitez, \{M. C.\} and C. Claessens and \{De Viveiros\}, L. and Doe, \{P. J.\} and M. Fertl and Formaggio, \{J. A.\} and Gaison, \{J. K.\} and L. Gladstone and M. Guigue and J. Hartse and Heeger, \{K. M.\} and X. Huyan and Jones, \{A. M.\} and K. Kazkaz and Laroque, \{B. H.\} and M. Li and A. Lindman and E. Machado and A. Marsteller and C. Matth{\'e} and R. Mohiuddin and B. Monreal and R. Mueller and Nikkel, \{J. A.\} and E. Novitski and Oblath, \{N. S.\} and Pe{\~n}a, \{J. I.\} and W. Pettus and R. Reimann and Robertson, \{R. G.H.\} and \{De Jes{\'u}s\}, \{D. Rosa\} and G. Rybka and L. Salda{\~n}a and M. Schram and Slocum, \{P. L.\} and J. Stachurska and Sun, \{Y. H.\} and Surukuchi, \{P. T.\} and Tedeschi, \{J. R.\} and Telles, \{A. B.\} and F. Thomas and M. Thomas and Thorne, \{L. A.\} and T. Th{\"u}mmler and L. Tvrznikova and \{Van De Pontseele\}, W. and Vandevender, \{B. A.\}",
note = "Publisher Copyright: {\textcopyright} 2024 American Physical Society.",
year = "2024",
month = mar,
doi = "10.1103/PhysRevC.109.035503",
language = "English (US)",
volume = "109",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "3",
}