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Related papers: Degeneracy between $\theta_{23}$ octant and neutri…

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Over the past few decades, data from leading neutrino experiments have firmly established neutrino oscillation, implying non-zero neutrino masses and leptonic mixing and thereby providing confirmed evidence of physics beyond the Standard…

High Energy Physics - Phenomenology · Physics 2026-03-02 Ritam Kundu

In this study, we analyze the influence of Non-Standard Interaction (NSI) on steering in three-flavor neutrino oscillations, with a focus on the NO$\nu$A and DUNE experimental setups. DUNE, having a longer baseline, exhibits a more…

High Energy Physics - Phenomenology · Physics 2025-08-04 Lekhashri Konwar , Bhavna Yadav

The three kinds of parameter degeneracy in neutrino oscillation, the intrinsic, sign and octant degeneracy, form an eight-fold degeneracy. The nature of this eight-fold degeneracy can be visualized on the ($\sin^22\theta_{13}$,…

High Energy Physics - Phenomenology · Physics 2024-01-09 Sho Sugama , Osamu Yasuda

We study the effect of non-standard interactions (NSIs) on the propagation of neutrinos through the Earth matter and how it affects the hierarchy sensitivity of the DUNE experiment. We emphasize on the special case when the diagonal NSI…

High Energy Physics - Phenomenology · Physics 2017-10-25 K. N. Deepthi , Srubabati Goswami , Newton Nath

Most neutrino mass theories contain non-standard interactions (NSI) of neutrinos which can be either non-universal (NU) or flavor-changing (FC). We study the impact of such interactions on the determination of neutrino mixing parameters at…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Huber , T. Schwetz , J. W. F. Valle

In neutrino oscillation with non-standard interactions (NSI) the system is enriched with CP violation caused by phases due to NSI in addition to the standard lepton Kobayashi-Maskawa phase \delta. In this paper we show that it is possible…

High Energy Physics - Phenomenology · Physics 2010-01-22 A. M. Gago , H. Minakata , H. Nunokawa , S. Uchinami , R. Zukanovich Funchal

Current 3$\nu$ global fits predict two degenerate solutions for $\theta_{23}$: one lies in lower octant ($\theta_{23} <\pi/4$), and the other belongs to higher octant ($\theta_{23} >\pi/4$). Here, we study how the measurement of…

High Energy Physics - Phenomenology · Physics 2017-04-25 Sanjib Kumar Agarwalla , Sabya Sachi Chatterjee , Antonio Palazzo

We explore the role of matter effect in the evolution of neutrino oscillation parameters in the presence of lepton-flavor-conserving and lepton-flavor-violating neutral-current non-standard interactions (NSI) of the neutrino. We derive…

High Energy Physics - Phenomenology · Physics 2021-12-01 Sanjib Kumar Agarwalla , Sudipta Das , Mehedi Masud , Pragyanprasu Swain

We show that, the decoherence phenomena applied to the neutrino system could lead us to have an observable breaking of the fundamental CPT symmetry. We require a specific textures of non-diagonal decoherence matrices, with non-zero…

High Energy Physics - Phenomenology · Physics 2019-04-24 J. C. Carrasco , F. N. Díaz , A. M. Gago

The latest data of the two long-baseline accelerator experiments NO$\nu$A and T2K, interpreted in the standard 3-flavor scenario, display a discrepancy. A mismatch in the determination of the standard CP-phase $\delta_{\mathrm {CP}}$…

High Energy Physics - Phenomenology · Physics 2021-02-10 Sabya Sachi Chatterjee , Antonio Palazzo

We study the matter effect caused by nonstandard neutrino interactions (NSI) in the next generation long-baseline neutrino experiments, DUNE, T2HK and T2HKK. If multiple NSI parameters are nonzero, the potential of these experiments to…

High Energy Physics - Phenomenology · Physics 2017-01-20 Jiajun Liao , Danny Marfatia , Kerry Whisnant

Atmospheric neutrinos provide a unique avenue to probe theories beyond the Standard Model (BSM) over a wide range of energies and path lengths. The theory of non-standard interactions (NSI) of neutrinos is one of the important BSM…

High Energy Physics - Phenomenology · Physics 2026-04-20 J Krishnamoorthi , Anil Kumar , Sanjib Kumar Agarwalla

Unmodeled beyond Standard Model (BSM) physics in neutrino propagation can masquerade as parameter degeneracies in future precision measurements. Because the upcoming DUNE and T2HK experiments will operate at substantially different…

High Energy Physics - Phenomenology · Physics 2026-03-17 João Paulo Pinheiro , Ushak Rahaman

We investigate the effects of non-standard interactions on the determination of the neutrino oscillation parameters $\Delta m_{31}^2$, $\theta_{23}$, and $\theta_{13}$ in the MINOS experiment. We show that adding non-standard interactions…

High Energy Physics - Phenomenology · Physics 2008-11-26 Mattias Blennow , Tommy Ohlsson , Julian Skrotzki

We explore the potential of several Neutrino Factory (NF) setups to constrain, discover and measure new physics effects due to Non-Standard Interactions (NSI) in propagation through Earth matter. We first study the impact of NSI in the…

High Energy Physics - Phenomenology · Physics 2015-05-28 P. Coloma , A. Donini , J. Lopez-Pavon , H. Minakata

We explore the complementarity between LHC searches and neutrino experiments in probing neutrino non-standard interactions. Our study spans the theoretical frameworks of effective field theory, simplified model and an illustrative UV…

High Energy Physics - Phenomenology · Physics 2021-02-16 K. S. Babu , Dorival Gonçalves , Sudip Jana , Pedro A. N. Machado

Current neutrino experiments measure the neutrino mixing parameters with an unprecedented accuracy. The upcoming generation of experiments will be sensitive to subdominant effects that can give information on the unknown neutrino…

High Energy Physics - Phenomenology · Physics 2018-01-30 Y. Farzan , M. Tortola

We investigate the interference effects of non-standard neutrino-matter interactions (NSNI) with the mass-induced neutrino oscillations. The NSNI is composed of flavor-changing neutrino interactions (FCNI) and flavor-diagonal neutrino…

High Energy Physics - Phenomenology · Physics 2009-08-05 T. Hattori , T. Hasuike , S. Wakaizumi

We present perturbative oscillation probabilities for electron and muon channels including non-standard interaction (NSI) effects. The perturbation was performed in standard parameters $\Delta m^2_{21}/\Delta m^2_{31}$ and…

High Energy Physics - Phenomenology · Physics 2020-11-30 Mariano Esteves Chaves , Diego Rossi Gratieri , Orlando Luis Goulart Peres

The measurement of the mixing angle \theta_{13}, sign of \Delta m^2_{13} and the CP or T violating phase \delta is fraught with ambiguities in neutrino oscillation. In this paper we give an analytic treatment of the paramater degeneracies…

High Energy Physics - Phenomenology · Physics 2009-11-07 Hisakazu Minakata , Hiroshi Nunokawa , Stephen Parke