Neutrino oscillations in matter provide a unique probe of new physics. Leveraging the advent of neutrino appearance data from NOvA and T2K in recent years, we investigate the presence of -violating neutrino nonstandard interactions in the oscillation data. We first show how to very simply approximate the expected NSI parameters to resolve differences between two long-baseline appearance experiments analytically. Then, by combining recent NOvA and T2K data, we find a tantalizing hint of -violating NSI preferring a new complex phase that is close to maximal: or with or . We then compare the results from long-baseline data to constraints from IceCube and COHERENT.
{ "_oai": { "updated": "2022-04-05T09:09:07Z", "id": "oai:repo.scoap3.org:59906", "sets": [ "PRL" ] }, "authors": [ { "raw_name": "Peter B. Denton", "affiliations": [ { "country": "USA", "value": "High Energy Theory Group, Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA" } ], "surname": "Denton", "given_names": "Peter B.", "full_name": "Denton, Peter B." }, { "raw_name": "Julia Gehrlein", "affiliations": [ { "country": "USA", "value": "High Energy Theory Group, Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA" } ], "surname": "Gehrlein", "given_names": "Julia", "full_name": "Gehrlein, Julia" }, { "raw_name": "Rebekah Pestes", "affiliations": [ { "country": "USA", "value": "High Energy Theory Group, Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA" }, { "country": "USA", "value": "Center for Neutrino Physics, Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA" } ], "surname": "Pestes", "given_names": "Rebekah", "full_name": "Pestes, Rebekah" } ], "titles": [ { "source": "APS", "title": "<math><mi>C</mi><mi>P</mi></math>-Violating Neutrino Nonstandard Interactions in Long-Baseline-Accelerator Data" } ], "dois": [ { "value": "10.1103/PhysRevLett.126.051801" } ], "publication_info": [ { "journal_volume": "126", "journal_title": "Physical Review Letters", "material": "article", "journal_issue": "5", "year": 2021 } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "acquisition_source": { "date": "2022-04-05T09:04:38.636705", "source": "APS", "method": "APS", "submission_number": "5f41244cb4bf11ec837fd6d834be26e1" }, "page_nr": [ 6 ], "license": [ { "url": "https://creativecommons.org/licenses/by/4.0/", "license": "CC-BY-4.0" } ], "copyright": [ { "statement": "Published by the American Physical Society", "year": "2021" } ], "control_number": "59906", "record_creation_date": "2021-02-04T17:30:06.525174", "_files": [ { "checksum": "md5:0fa6cfa8bca55070f092785ddda8e67c", "filetype": "pdf", "bucket": "a1f27785-bb75-4cc1-bb78-6a0d94a5ef0e", "version_id": "59f61152-4328-4ead-929b-b4dd29714615", "key": "10.1103/PhysRevLett.126.051801.pdf", "size": 277782 }, { "checksum": "md5:827616fa686079f2f6a28ff906983b66", "filetype": "xml", "bucket": "a1f27785-bb75-4cc1-bb78-6a0d94a5ef0e", "version_id": "7acae96a-5c5b-41c2-a275-ed2e715ce1bc", "key": "10.1103/PhysRevLett.126.051801.xml", "size": 120771 } ], "collections": [ { "primary": "HEP" }, { "primary": "Citeable" }, { "primary": "Published" } ], "arxiv_eprints": [ { "categories": [ "hep-ph", "hep-ex" ], "value": "2008.01110" } ], "abstracts": [ { "source": "APS", "value": "Neutrino oscillations in matter provide a unique probe of new physics. Leveraging the advent of neutrino appearance data from NOvA and T2K in recent years, we investigate the presence of <math><mi>C</mi><mi>P</mi></math>-violating neutrino nonstandard interactions in the oscillation data. We first show how to very simply approximate the expected NSI parameters to resolve differences between two long-baseline appearance experiments analytically. Then, by combining recent NOvA and T2K data, we find a tantalizing hint of <math><mi>C</mi><mi>P</mi></math>-violating NSI preferring a new complex phase that is close to maximal: <math><msub><mi>\u03d5</mi><mrow><mi>e</mi><mi>\u03bc</mi></mrow></msub></math> or <math><msub><mi>\u03d5</mi><mrow><mi>e</mi><mi>\u03c4</mi></mrow></msub><mo>\u2248</mo><mn>3</mn><mi>\u03c0</mi><mo>/</mo><mn>2</mn></math> with <math><mo>|</mo><msub><mi>\u03b5</mi><mrow><mi>e</mi><mi>\u03bc</mi></mrow></msub><mo>|</mo></math> or <math><mo>|</mo><msub><mi>\u03b5</mi><mrow><mi>e</mi><mi>\u03c4</mi></mrow></msub><mo>|</mo><mo>\u223c</mo><mn>0.2</mn></math>. We then compare the results from long-baseline data to constraints from IceCube and COHERENT." } ], "imprints": [ { "date": "2021-02-04", "publisher": "APS" } ] }