Neutrino oscillations in presence of diagonal elements of scalar NSI: an analytic approach
Abstract Scalar Non-Standard Interactions (SNSI) in neutrinos can arise when a scalar mediator couples to both neutrinos and standard model fermions. This beyond the Standard Model (BSM) scenario is particularly interesting as the SNSI contribution appears as a density-dependent perturbation to the...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP12(2024)222 |
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| author | Dharitree Bezboruah Dibya S. Chattopadhyay Abinash Medhi Arnab Sarker Moon Moon Devi |
| author_facet | Dharitree Bezboruah Dibya S. Chattopadhyay Abinash Medhi Arnab Sarker Moon Moon Devi |
| author_sort | Dharitree Bezboruah |
| collection | DOAJ |
| description | Abstract Scalar Non-Standard Interactions (SNSI) in neutrinos can arise when a scalar mediator couples to both neutrinos and standard model fermions. This beyond the Standard Model (BSM) scenario is particularly interesting as the SNSI contribution appears as a density-dependent perturbation to the neutrino mass, rather than appearing as a matter-induced potential, and the neutrino oscillation probabilities uniquely depend on the absolute neutrino masses. In this work, we show the complex dependence of the SNSI contributions on the neutrino masses and discuss how the mass of the lightest neutrino would regulate any possible SNSI contribution in both mass ordering scenarios. We derive the analytic expressions for neutrino oscillation probabilities, employing the Cayley-Hamilton theorem, in the presence of diagonal elements of SNSI. The expressions are compact and show explicit dependence on matter effects and the absolute neutrino masses. The analytic expressions calculated here allow us to obtain the dependence of the SNSI contribution on mass terms of the form m 1 + m 2, m 2 − m 1, m 1 c 12 2 $$ {m}_1{c}_{12}^2 $$ + m 2 s 12 2 $$ {m}_2{s}_{12}^2 $$ , m 1 s 12 2 $$ {m}_1{s}_{12}^2 $$ + m 2 c 12 2 $$ {m}_2{c}_{12}^2 $$ , and m 3. We then explore the non-trivial impact of neutrino mass ordering on the SNSI contribution. The dependence of the SNSI contribution on the 3ν parameters is thoroughly explored using our analytic expressions. |
| format | Article |
| id | doaj-art-45c77b3d44eb4e6faa66b92eb749651b |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-45c77b3d44eb4e6faa66b92eb749651b2025-02-02T12:06:12ZengSpringerOpenJournal of High Energy Physics1029-84792024-12-0120241214010.1007/JHEP12(2024)222Neutrino oscillations in presence of diagonal elements of scalar NSI: an analytic approachDharitree Bezboruah0Dibya S. Chattopadhyay1Abinash Medhi2Arnab Sarker3Moon Moon Devi4Department of Physics, Tezpur UniversityTata Institute of Fundamental ResearchDepartment of Physics, Tezpur UniversityDepartment of Physics, Tezpur UniversityDepartment of Physics, Tezpur UniversityAbstract Scalar Non-Standard Interactions (SNSI) in neutrinos can arise when a scalar mediator couples to both neutrinos and standard model fermions. This beyond the Standard Model (BSM) scenario is particularly interesting as the SNSI contribution appears as a density-dependent perturbation to the neutrino mass, rather than appearing as a matter-induced potential, and the neutrino oscillation probabilities uniquely depend on the absolute neutrino masses. In this work, we show the complex dependence of the SNSI contributions on the neutrino masses and discuss how the mass of the lightest neutrino would regulate any possible SNSI contribution in both mass ordering scenarios. We derive the analytic expressions for neutrino oscillation probabilities, employing the Cayley-Hamilton theorem, in the presence of diagonal elements of SNSI. The expressions are compact and show explicit dependence on matter effects and the absolute neutrino masses. The analytic expressions calculated here allow us to obtain the dependence of the SNSI contribution on mass terms of the form m 1 + m 2, m 2 − m 1, m 1 c 12 2 $$ {m}_1{c}_{12}^2 $$ + m 2 s 12 2 $$ {m}_2{s}_{12}^2 $$ , m 1 s 12 2 $$ {m}_1{s}_{12}^2 $$ + m 2 c 12 2 $$ {m}_2{c}_{12}^2 $$ , and m 3. We then explore the non-trivial impact of neutrino mass ordering on the SNSI contribution. The dependence of the SNSI contribution on the 3ν parameters is thoroughly explored using our analytic expressions.https://doi.org/10.1007/JHEP12(2024)222Neutrino MixingNon-Standard Neutrino PropertiesNeutrino Interactions |
| spellingShingle | Dharitree Bezboruah Dibya S. Chattopadhyay Abinash Medhi Arnab Sarker Moon Moon Devi Neutrino oscillations in presence of diagonal elements of scalar NSI: an analytic approach Journal of High Energy Physics Neutrino Mixing Non-Standard Neutrino Properties Neutrino Interactions |
| title | Neutrino oscillations in presence of diagonal elements of scalar NSI: an analytic approach |
| title_full | Neutrino oscillations in presence of diagonal elements of scalar NSI: an analytic approach |
| title_fullStr | Neutrino oscillations in presence of diagonal elements of scalar NSI: an analytic approach |
| title_full_unstemmed | Neutrino oscillations in presence of diagonal elements of scalar NSI: an analytic approach |
| title_short | Neutrino oscillations in presence of diagonal elements of scalar NSI: an analytic approach |
| title_sort | neutrino oscillations in presence of diagonal elements of scalar nsi an analytic approach |
| topic | Neutrino Mixing Non-Standard Neutrino Properties Neutrino Interactions |
| url | https://doi.org/10.1007/JHEP12(2024)222 |
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