First detection of coherent elastic neutrino-nucleus scattering on germanium
First detection of coherent elastic neutrino-nucleus scattering on germanium
We report the first detection of coherent elastic neutrino-nucleus scattering (CEvNS) on germanium, measured at the Spallation Neutron Source at Oak Ridge National Laboratory. The Ge-Mini detector of the COHERENT collaboration employs large-mass, low-noise, high-purity germanium spectrometers, enabling excellent energy resolution, and an analysis threshold of 1.5 keV electron-equivalent ionization energy. We observe a on-beam excess of 20.6$_{+7.1}^{-6.3}$ counts with a total exposure of 10.22 GWhkg and we reject the no-CEvNS hypothesis with 3.9 sigma significance. The result agrees with the predicted standard model of particle physics signal rate within 2 sigma.
R. Tayloe、B. Suh、K. Mann、S. Adamski、B. Sur、L. Fabris、S. R. Elliott、C. G. Prior、T. Wongjirad、R. Rapp、K. Scholberg、A. Major、H. Ray、J. Queen、J. Col¨?n Rivera、A. Konovalov、G. C. Rich、J. Hakenm¨1ller、J. Daughhetee、C. J. Virtue、G. Visser、D. Reyna、J. Detwiler、M. R. Heath、N. Ogoi、D. Rudik、J. Moye、A. Shakirov、J. Sander、A. Zaalishvili、M. Luxnat、A. Galindo-Uribarri、J. Runge、K. Walkup、J. O'Reilly、J. Browning、D. Pershey、J. Yoo、A. Erlandson、J. Liu、H. Jones、T. Johnson、E. M. Ward、D. P¨|rez-Loureiro、V. Sosnovtsev、J. Newby、K. Ding、A. Bolozdynya、O. Kyzylova、P. E. Mueller、A. Kumpan、V. Belov、B. A. Johnson、I. Bernardi、D. S. Parno、H. Jeong、N. Cedarblade-Jones、J. M. Link、G. Simakov、S. Hedges、J. Mattingly、M. Stringer、M. P. Green、W. M. Snow、Y. Efremenko、K. Tellez-Giron-Flores、E. E. van Nieuwenhuizen、C. -H. Yu、E. Kozlova、O. Razuvaeva、Y. Lee、M. Ahn、Y. Yang、V. da Silva、D. M. Markoff、C. Bock、B. Cabrera-Palmer、G. Li、M. R. Durand、Y. -T. Tsai、A. Khromov、D. J. Salvat、T. Subedi、R. Bouabid、L. Li、E. Conley、P. S. Barbeau
粒子探测技术、辐射探测技术、核仪器仪表物理学
R. Tayloe,B. Suh,K. Mann,S. Adamski,B. Sur,L. Fabris,S. R. Elliott,C. G. Prior,T. Wongjirad,R. Rapp,K. Scholberg,A. Major,H. Ray,J. Queen,J. Col¨?n Rivera,A. Konovalov,G. C. Rich,J. Hakenm¨1ller,J. Daughhetee,C. J. Virtue,G. Visser,D. Reyna,J. Detwiler,M. R. Heath,N. Ogoi,D. Rudik,J. Moye,A. Shakirov,J. Sander,A. Zaalishvili,M. Luxnat,A. Galindo-Uribarri,J. Runge,K. Walkup,J. O'Reilly,J. Browning,D. Pershey,J. Yoo,A. Erlandson,J. Liu,H. Jones,T. Johnson,E. M. Ward,D. P¨|rez-Loureiro,V. Sosnovtsev,J. Newby,K. Ding,A. Bolozdynya,O. Kyzylova,P. E. Mueller,A. Kumpan,V. Belov,B. A. Johnson,I. Bernardi,D. S. Parno,H. Jeong,N. Cedarblade-Jones,J. M. Link,G. Simakov,S. Hedges,J. Mattingly,M. Stringer,M. P. Green,W. M. Snow,Y. Efremenko,K. Tellez-Giron-Flores,E. E. van Nieuwenhuizen,C. -H. Yu,E. Kozlova,O. Razuvaeva,Y. Lee,M. Ahn,Y. Yang,V. da Silva,D. M. Markoff,C. Bock,B. Cabrera-Palmer,G. Li,M. R. Durand,Y. -T. Tsai,A. Khromov,D. J. Salvat,T. Subedi,R. Bouabid,L. Li,E. Conley,P. S. Barbeau.First detection of coherent elastic neutrino-nucleus scattering on germanium[EB/OL].(2024-06-19)[2025-06-22].https://arxiv.org/abs/2406.13806.点此复制
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