| Title: |
Search for an eV-Scale Sterile Neutrino Using Improved High-Energy νμ Event Reconstruction in IceCube |
| Authors: |
Abbasi, R; Ackermann, M; Adams, J; Agarwalla, SK; Aguilar, JA; Ahlers, M; Alameddine, JM; Amin, NM; Andeen, K; Argüelles, C; Ashida, Y; Athanasiadou, S; Ausborm, L; Axani, SN; Bai, X; V., A Balagopal; Baricevic, M; Barwick, SW; Bash, S; Basu, V; Bay, R; Beatty, JJ; Tjus, J Becker; Beise, J; Bellenghi, C; Benning, C; BenZvi, S; Berley, D; Bernardini, E; Besson, DZ; Blaufuss, E; Bloom, L; Blot, S; Bontempo, F; Motzkin, JY Book; Meneguolo, C Boscolo; Böser, S; Botner, O; Böttcher, J; Braun, J; Brinson, B; Brostean-Kaiser, J; Brusa, L; Burley, RT; Butterfield, D; Campana, MA; Caracas, I; Carloni, K; Carpio, J; Chattopadhyay, S; Chau, N; Chen, Z; Chirkin, D; Choi, S; Clark, BA; Coleman, A; Collin, GH; Connolly, A; Conrad, JM; Coppin, P; Corley, R; Correa, P; Cowen, DF; Dave, P; De Clercq, C; DeLaunay, JJ; Delgado, D; Deng, S; Desai, A; Desiati, P; de Vries, KD; de Wasseige, G; Diaz, A; Díaz-Vélez, JC; Dierichs, P; Dittmer, M; Domi, A; Draper, L; Dujmovic, H; Dutta, K; DuVernois, MA; Ehrhardt, T; Eidenschink, L; Eimer, A; Eller, P; Ellinger, E; Mentawi, S El; Elsässer, D; Engel, R; Erpenbeck, H; Evans, J; Evenson, PA; Fan, KL; Fang, K; Farrag, K; Fazely, AR; Fedynitch, A; Feigl, N; Fiedlschuster, S; Finley, C |
| Source: |
Physical Review Letters, vol 133, iss 20 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2024 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
Nuclear and Plasma Physics; Particle and High Energy Physics; Physical Sciences; IceCube Collaboration; Mathematical Sciences; Engineering; General Physics |
| Description: |
This Letter presents the result of a 3+1 sterile neutrino search using 10.7yr of IceCube data. We analyze atmospheric muon neutrinos that traverse the Earth with energies ranging from 0.5 to 100TeV, incorporating significant improvements in modeling neutrino flux and detector response compared to earlier studies. Notably, for the first time, we categorize data into starting and throughgoing events, distinguishing neutrino interactions with vertices inside or outside the instrumented volume, to improve energy resolution. The best-fit point for a 3+1 model is found to be at sin^{2}(2θ_{24})=0.16 and Δm_{41}^{2}=3.5 eV^{2}, which agrees with previous iterations of this Letter. The result is consistent with the null hypothesis of no sterile neutrinos with a p value of 3.1%. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt4r47x2w7; https://escholarship.org/uc/item/4r47x2w7; https://escholarship.org/content/qt4r47x2w7/qt4r47x2w7.pdf |
| DOI: |
10.1103/physrevlett.133.201804 |
| Availability: |
https://escholarship.org/uc/item/4r47x2w7; https://escholarship.org/content/qt4r47x2w7/qt4r47x2w7.pdf; https://doi.org/10.1103/physrevlett.133.201804 |
| Rights: |
CC-BY |
| Accession Number: |
edsbas.85CB28F8 |
| Database: |
BASE |