Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses
The sidereal time dependence of MiniBooNE ν[subscript e] and ν[over-bar][subscript e] appearance data is analyzed to search for evidence of Lorentz and CPT violation. An unbinned Kolmogorov–Smirnov (K–S) test shows both the ν[subscript e] and ν[over-bar][subscript e] appearance data are compatible w...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en_US |
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Elsevier B.V.
2014
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| Online Access: | http://hdl.handle.net/1721.1/88414 https://orcid.org/0000-0002-9429-9482 https://orcid.org/0000-0002-6393-0438 https://orcid.org/0000-0003-3837-3921 |
| _version_ | 1826209867208065024 |
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| author | Bugel, Leonard G. Conrad, Janet Karagiorgi, Georgia Stelios Katori, Teppei McGary, Van Thanh |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Bugel, Leonard G. Conrad, Janet Karagiorgi, Georgia Stelios Katori, Teppei McGary, Van Thanh |
| author_sort | Bugel, Leonard G. |
| collection | MIT |
| description | The sidereal time dependence of MiniBooNE ν[subscript e] and ν[over-bar][subscript e] appearance data is analyzed to search for evidence of Lorentz and CPT violation. An unbinned Kolmogorov–Smirnov (K–S) test shows both the ν[subscript e] and ν[over-bar][subscript e] appearance data are compatible with the null sidereal variation hypothesis to more than 5%. Using an unbinned likelihood fit with a Lorentz-violating oscillation model derived from the Standard Model Extension (SME) to describe any excess events over background, we find that the ν[subscript e] appearance data prefer a sidereal time-independent solution, and the ν[over-bar][subscript e] appearance data slightly prefer a sidereal time-dependent solution. Limits of order 10−20 GeV10−20 GeV are placed on combinations of SME coefficients. These limits give the best limits on certain SME coefficients for ν[subscript μ] →ν[subscript e] and ν[over-bar][subscript μ]→ν[over-bar][subscript e] oscillations. The fit values and limits of combinations of SME coefficients are provided. |
| first_indexed | 2024-09-23T14:33:20Z |
| format | Article |
| id | mit-1721.1/88414 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:33:20Z |
| publishDate | 2014 |
| publisher | Elsevier B.V. |
| record_format | dspace |
| spelling | mit-1721.1/884142022-09-29T09:47:20Z Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses Bugel, Leonard G. Conrad, Janet Karagiorgi, Georgia Stelios Katori, Teppei McGary, Van Thanh Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Bugel, Leonard G. Conrad, Janet Karagiorgi, Georgia Stelios Katori, Teppei McGary, Van Thanh The sidereal time dependence of MiniBooNE ν[subscript e] and ν[over-bar][subscript e] appearance data is analyzed to search for evidence of Lorentz and CPT violation. An unbinned Kolmogorov–Smirnov (K–S) test shows both the ν[subscript e] and ν[over-bar][subscript e] appearance data are compatible with the null sidereal variation hypothesis to more than 5%. Using an unbinned likelihood fit with a Lorentz-violating oscillation model derived from the Standard Model Extension (SME) to describe any excess events over background, we find that the ν[subscript e] appearance data prefer a sidereal time-independent solution, and the ν[over-bar][subscript e] appearance data slightly prefer a sidereal time-dependent solution. Limits of order 10−20 GeV10−20 GeV are placed on combinations of SME coefficients. These limits give the best limits on certain SME coefficients for ν[subscript μ] →ν[subscript e] and ν[over-bar][subscript μ]→ν[over-bar][subscript e] oscillations. The fit values and limits of combinations of SME coefficients are provided. Fermi National Accelerator Laboratory United States. Dept. of Energy National Science Foundation (U.S.) Indiana University, Bloomington. Center for Spacetime Symmetries 2014-07-15T18:45:37Z 2014-07-15T18:45:37Z 2013-01 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/88414 Aguilar-Arevalo, A.A., C.E. Anderson, A.O. Bazarko, S.J. Brice, B.C. Brown, L. Bugel, J. Cao, et al. “Test of Lorentz and CPT Violation with Short Baseline Neutrino Oscillation Excesses.” Physics Letters B 718, no. 4–5 (January 2013): 1303–1308. https://orcid.org/0000-0002-9429-9482 https://orcid.org/0000-0002-6393-0438 https://orcid.org/0000-0003-3837-3921 en_US http://dx.doi.org/10.1016/j.physletb.2012.12.020 Physics Letters B Creative Commons Attribution-4.0 Unported http://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier B.V. Elsevier Open Access |
| spellingShingle | Bugel, Leonard G. Conrad, Janet Karagiorgi, Georgia Stelios Katori, Teppei McGary, Van Thanh Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses |
| title | Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses |
| title_full | Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses |
| title_fullStr | Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses |
| title_full_unstemmed | Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses |
| title_short | Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses |
| title_sort | test of lorentz and cpt violation with short baseline neutrino oscillation excesses |
| url | http://hdl.handle.net/1721.1/88414 https://orcid.org/0000-0002-9429-9482 https://orcid.org/0000-0002-6393-0438 https://orcid.org/0000-0003-3837-3921 |
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