Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory
Relativistic millicharged particles (χ[subscript q]) have been proposed in various extensions to the standard model of particle physics. We consider the scenarios where they are produced at nuclear reactor core and via interactions of cosmic rays with the Earth’s atmosphere. Millicharged particles c...
| Main Authors: | , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society
2019
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| Online Access: | http://hdl.handle.net/1721.1/120586 |
| _version_ | 1826211965211508736 |
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| author | Singh, L. Chen, J. W. Chi, H. C. Liu, C.-P. Pandey, M. K. Wong, H. T. Wu, C. P. Agartioglu, M. Deniz, M. Li, H. B. Lin, S. T. Sharma, V. Singh, M. K. Singh, V. Yue, Q. |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Singh, L. Chen, J. W. Chi, H. C. Liu, C.-P. Pandey, M. K. Wong, H. T. Wu, C. P. Agartioglu, M. Deniz, M. Li, H. B. Lin, S. T. Sharma, V. Singh, M. K. Singh, V. Yue, Q. |
| author_sort | Singh, L. |
| collection | MIT |
| description | Relativistic millicharged particles (χ[subscript q]) have been proposed in various extensions to the standard model of particle physics. We consider the scenarios where they are produced at nuclear reactor core and via interactions of cosmic rays with the Earth’s atmosphere. Millicharged particles could also be candidates for dark matter and become relativistic through acceleration by supernova explosion shock waves. The atomic ionization cross section of χ[subscript q] with matter are derived with the equivalent photon approximation. Smoking-gun signatures with significant enhancement in the differential cross section are identified. New limits on the mass and charge of χ[subscript q] are derived, using data taken with a point-contact germanium detector with 500 g mass functioning at an energy threshold of 300 eV at the Kuo-Sheng Reactor Neutrino Laboratory. |
| first_indexed | 2024-09-23T15:13:53Z |
| format | Article |
| id | mit-1721.1/120586 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:13:53Z |
| publishDate | 2019 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1205862022-10-02T01:33:19Z Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory Singh, L. Chen, J. W. Chi, H. C. Liu, C.-P. Pandey, M. K. Wong, H. T. Wu, C. P. Agartioglu, M. Deniz, M. Li, H. B. Lin, S. T. Sharma, V. Singh, M. K. Singh, V. Yue, Q. Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Chen, J. W. Relativistic millicharged particles (χ[subscript q]) have been proposed in various extensions to the standard model of particle physics. We consider the scenarios where they are produced at nuclear reactor core and via interactions of cosmic rays with the Earth’s atmosphere. Millicharged particles could also be candidates for dark matter and become relativistic through acceleration by supernova explosion shock waves. The atomic ionization cross section of χ[subscript q] with matter are derived with the equivalent photon approximation. Smoking-gun signatures with significant enhancement in the differential cross section are identified. New limits on the mass and charge of χ[subscript q] are derived, using data taken with a point-contact germanium detector with 500 g mass functioning at an energy threshold of 300 eV at the Kuo-Sheng Reactor Neutrino Laboratory. 2019-03-01T16:15:34Z 2019-03-01T16:15:34Z 2019-02 2019-02-19T18:00:13Z Article http://purl.org/eprint/type/JournalArticle 2470-0010 2470-0029 http://hdl.handle.net/1721.1/120586 Singh, L. et al. "Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory." Physical Review D 99, 3 (February 2019): 032009 en http://dx.doi.org/10.1103/PhysRevD.99.032009 Physical Review D Creative Commons Attribution http://creativecommons.org/licenses/by/3.0 application/pdf American Physical Society American Physical Society |
| spellingShingle | Singh, L. Chen, J. W. Chi, H. C. Liu, C.-P. Pandey, M. K. Wong, H. T. Wu, C. P. Agartioglu, M. Deniz, M. Li, H. B. Lin, S. T. Sharma, V. Singh, M. K. Singh, V. Yue, Q. Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory |
| title | Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory |
| title_full | Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory |
| title_fullStr | Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory |
| title_full_unstemmed | Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory |
| title_short | Constraints on millicharged particles with low-threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory |
| title_sort | constraints on millicharged particles with low threshold germanium detectors at kuo sheng reactor neutrino laboratory |
| url | http://hdl.handle.net/1721.1/120586 |
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