Meson and anti-meson mixing processes constitute an important source of constraints on models that give tree level contributions to flavor violating neutral processes. In electroweak models, where anomaly cancellation requires that one family of quarks transforms differently from the other ones, processes involving flavor changing neutral currents gain tree level contributions mediated by gauge and scalar fields. Here, we firstly investigate the contributions of the neutral scalar that mimics the standard Higgs to the , , and mixing processes and confront our predictions with experiments. The results will determine the quark mixing matrices . In possession of this information we, next, evaluate the contributions of the neutral gauge bosons and Z to the , , and processes. This realistic approach to meson transitions will provide severe bounds on and mixing angle.
{ "license": [ { "url": "http://creativecommons.org/licenses/by/3.0/", "license": "CC-BY-3.0" } ], "copyright": [ { "holder": "The Author(s)", "statement": "The Author(s)", "year": "2023" } ], "control_number": "80660", "_oai": { "updated": "2024-01-22T18:32:00Z", "id": "oai:repo.scoap3.org:80660", "sets": [ "PLB" ] }, "authors": [ { "surname": "Oliveira", "given_names": "Vin\u00edcius", "affiliations": [ { "country": "Brazil", "value": "Departamento de F\u00edsica, Universidade Federal da Para\u00edba, Caixa Postal 5008, 58051-970, Jo\u00e3o Pessoa, PB, Brazil" } ], "full_name": "Oliveira, Vin\u00edcius", "orcid": "0000-0003-3702-042X", "email": "vlbo@academico.ufpb.br" }, { "affiliations": [ { "country": "Brazil", "value": "Departamento de F\u00edsica, Universidade Federal da Para\u00edba, Caixa Postal 5008, 58051-970, Jo\u00e3o Pessoa, PB, Brazil" } ], "surname": "de S. Pires", "email": "cpires@fisica.ufpb.br", "full_name": "de S. Pires, C.A.", "given_names": "C.A." } ], "_files": [ { "checksum": "md5:a6ba7e58c608a84feb6aedb182cd3ff5", "filetype": "xml", "bucket": "d44c92b3-44bf-45bf-aa3f-54157b9fe437", "version_id": "32fa1525-7417-4a71-b04f-37bb664a4373", "key": "10.1016/j.physletb.2023.138216.xml", "size": 291021 }, { "checksum": "md5:f5765488d927f96ba926836df72b9079", "filetype": "pdf", "bucket": "d44c92b3-44bf-45bf-aa3f-54157b9fe437", "version_id": "b6cc9903-c9b9-463e-ada6-34bdbef99d4d", "key": "10.1016/j.physletb.2023.138216.pdf", "size": 431492 } ], "record_creation_date": "2023-10-03T12:31:08.109539", "titles": [ { "source": "Elsevier", "title": "Bounds on quark mixing, And \u2212 \u2032 Mixing Angle From Flavor Changing Neutral Processes in a 3-3-1 Model" } ], "collections": [ { "primary": "Physics Letters B" } ], "dois": [ { "value": "10.1016/j.physletb.2023.138216" } ], "publication_info": [ { "journal_volume": "846 C", "journal_title": "Physics Letters B", "material": "article", "artid": "138216", "year": 2023 } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "abstracts": [ { "source": "Elsevier", "value": "Meson and anti-meson mixing processes constitute an important source of constraints on models that give tree level contributions to flavor violating neutral processes. In electroweak <math><mtext>SU</mtext><msub><mrow><mo>(</mo><mn>3</mn><mo>)</mo></mrow><mrow><mtext>L</mtext></mrow></msub><mo>\u00d7</mo><mtext>U</mtext><msub><mrow><mo>(</mo><mn>1</mn><mo>)</mo></mrow><mrow><mi>N</mi></mrow></msub></math> models, where anomaly cancellation requires that one family of quarks transforms differently from the other ones, processes involving flavor changing neutral currents gain tree level contributions mediated by gauge and scalar fields. Here, we firstly investigate the contributions of the neutral scalar that mimics the standard Higgs to the <math><msup><mrow><mi>K</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>\u2212</mo><msup><mrow><mover><mrow><mi>K</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mrow><mn>0</mn></mrow></msup></math>, <math><msup><mrow><mi>B</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>\u2212</mo><msup><mrow><mover><mrow><mi>B</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mrow><mn>0</mn></mrow></msup></math>, and <math><msup><mrow><mi>D</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>\u2212</mo><msup><mrow><mover><mrow><mi>D</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mrow><mn>0</mn></mrow></msup></math> mixing processes and confront our predictions with experiments. The results will determine the quark mixing matrices <math><msubsup><mrow><mi>V</mi></mrow><mrow><mi>L</mi></mrow><mrow><mi>u</mi><mo>,</mo><mi>d</mi></mrow></msubsup></math>. In possession of this information we, next, evaluate the contributions of the neutral gauge bosons <math><msup><mrow><mi>Z</mi></mrow><mrow><mo>\u2032</mo></mrow></msup></math> and Z to the <math><msup><mrow><mi>K</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>\u2212</mo><msup><mrow><mover><mrow><mi>K</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mrow><mn>0</mn></mrow></msup></math>, <math><msup><mrow><mi>B</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>\u2212</mo><msup><mrow><mover><mrow><mi>B</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mrow><mn>0</mn></mrow></msup></math>, and <math><msup><mrow><mi>D</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>\u2212</mo><msup><mrow><mover><mrow><mi>D</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mrow><mn>0</mn></mrow></msup></math> processes. This realistic approach to meson transitions will provide severe bounds on <math><msub><mrow><mi>M</mi></mrow><mrow><msup><mrow><mi>Z</mi></mrow><mrow><mo>\u2032</mo></mrow></msup></mrow></msub></math> and <math><mi>Z</mi><mo>\u2212</mo><msup><mrow><mi>Z</mi></mrow><mrow><mo>\u2032</mo></mrow></msup></math> mixing angle." } ], "imprints": [ { "date": "2023-09-29", "publisher": "Elsevier" } ], "acquisition_source": { "date": "2024-01-22T18:30:30.194196", "source": "Elsevier", "method": "Elsevier", "submission_number": "4038104cb95411eea49c8e4864f4776e" } }