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Byron W, Harrington H, Taylor RJ, DeGraw W, Buzinsky N, Dodson B, Fertl M, García A, Garvey G, Graner B, Guigue M, Hayen L, Huyan X, Khaw KS, Knutsen K, McClain D, Melconian D, Müller P, Novitski E, Oblath NS, Robertson RGH, Rybka G, Savard G, Smith E, Stancil DD, Sternberg M, Storm DW, Swanson HE, Tedeschi JR, VanDevender BA, Wietfeldt FE, Young AR, Zhu X. First Observation of Cyclotron Radiation from MeV-Scale e^{±} following Nuclear β Decay. Phys Rev Lett 2023; 131:082502. [PMID: 37683153 DOI: 10.1103/physrevlett.131.082502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 05/03/2023] [Accepted: 07/12/2023] [Indexed: 09/10/2023]
Abstract
We present an apparatus for detection of cyclotron radiation yielding a frequency-based β^{±} kinetic energy determination in the 5 keV to 2.1 MeV range, characteristic of nuclear β decays. The cyclotron frequency of the radiating β particles in a magnetic field is used to determine the β energy precisely. Our work establishes the foundation to apply the cyclotron radiation emission spectroscopy (CRES) technique, developed by the Project 8 Collaboration, far beyond the 18-keV tritium endpoint region. We report initial measurements of β^{-}'s from ^{6}He and β^{+}'s from ^{19}Ne decays to demonstrate the broadband response of our detection system and assess potential systematic uncertainties for β spectroscopy over the full (MeV) energy range. To our knowledge, this is the first direct observation of cyclotron radiation from individual highly relativistic β's in a waveguide. This work establishes the application of CRES to a variety of nuclei, opening its reach to searches for new physics beyond the TeV scale via precision β-decay measurements.
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Affiliation(s)
- W Byron
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - H Harrington
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - R J Taylor
- Physics Department, North Carolina State University, Raleigh, North Carolina 27695, USA
- The Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - W DeGraw
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - N Buzinsky
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - B Dodson
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - M Fertl
- Institute for Physics, Johannes-Gutenberg University Mainz, 55128 Mainz, Germany
| | - A García
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - G Garvey
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - B Graner
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - M Guigue
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - L Hayen
- Physics Department, North Carolina State University, Raleigh, North Carolina 27695, USA
- The Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - X Huyan
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - K S Khaw
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - K Knutsen
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - D McClain
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - D Melconian
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - P Müller
- Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - E Novitski
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - N S Oblath
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - R G H Robertson
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - G Rybka
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - G Savard
- Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - E Smith
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - D D Stancil
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - M Sternberg
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - D W Storm
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - H E Swanson
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - J R Tedeschi
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - B A VanDevender
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - F E Wietfeldt
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA
| | - A R Young
- Physics Department, North Carolina State University, Raleigh, North Carolina 27695, USA
- The Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - X Zhu
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Center for Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
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