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Neutrino non-standard interactions (NSI) with electrons are known to alter the picture of neutrino decoupling from the cosmic plasma. NSI modify both flavour oscillations through matter effects, and the annihilation and scattering between…

High Energy Physics - Phenomenology · Physics 2021-08-17 Pablo F. de Salas , Stefano Gariazzo , Pablo Martínez-Miravé , Sergio Pastor , Mariam Tórtola

Neutrino non-standard interactions (NSI) with electrons, predicted in many extended theoretical models of particle physics, are known to alter the picture of neutrino decoupling from the cosmic plasma. We update previous analyses of…

High Energy Physics - Phenomenology · Physics 2026-03-02 Stefano Gariazzo , Jaume Moncho , Sergio Pastor , Ofelia Pisanti

We consider the decoupling of neutrinos in the early Universe in presence of non-standard neutral current neutrino-electron interactions (NSI). We first discuss a semi-analytical approach to solve the relevant kinetic equations and then…

High Energy Physics - Phenomenology · Physics 2009-11-11 Gianpiero Mangano , Gennaro Miele , Sergio Pastor , Teguayco Pinto , Ofelia Pisanti , Pasquale D. Serpico

Nonstandard interactions (NSI) of neutrinos with matter can significantly alter neutrino flavor evolution in supernovae with the potential to impact explosion dynamics, nucleosynthesis, and the neutrinos signal. In this paper, we explore,…

High Energy Physics - Phenomenology · Physics 2016-12-07 Charles J. Stapleford , Daavid J. Väänänen , James P. Kneller , Gail C. McLaughlin , Brandon T. Shapiro

We present a detailed analysis on nonstandard neutrino interactions (NSI) with electrons including all muon and electron (anti)-neutrino data from existing accelerators and reactors, in conjunction with the ``neutrino counting'' data (e- e+…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Barranco , O. G. Miranda , C. A. Moura , J. W. F. Valle

Deviations from unitarity in the three-neutrino mixing canonical picture are expected in many physics scenarios beyond the Standard Model. The mixing of new heavy neutral leptons with the three light neutrinos would in principle modify the…

High Energy Physics - Phenomenology · Physics 2023-03-24 Stefano Gariazzo , Pablo Martínez-Miravé , Olga Mena , Sergio Pastor , Mariam Tórtola

Non-standard neutrino interactions (NSI) affect both their propagation through matter and their detection, with bounds on NSI parameters coming from various astrophysical and terrestrial neutrino experiments. In this paper, we show that NSI…

High Energy Physics - Phenomenology · Physics 2017-08-31 Bhaskar Dutta , Shu Liao , Louis E. Strigari , Joel W. Walker

We study the effects of non-standard interactions on the oscillation pattern of atmospheric neutrinos. We use neutrino oscillograms as our main tool to infer the role of non-standard interactions (NSI) parameters at the probability level in…

High Energy Physics - Phenomenology · Physics 2016-06-21 Animesh Chatterjee , Poonam Mehta , Debajyoti Choudhury , Raj Gandhi

Neutrino non-standard interactions (NSI) play a crucial role in neutrino oscillations and can provide valuable insights for constructing models of neutrino masses and mixing. While NSI have been widely explored through oscillation and…

High Energy Physics - Phenomenology · Physics 2025-07-16 Sudip Jana , Saumyen Kundu , Santosh Kumar Rai

We analyze the prospects for studying scalar non-standard interactions (SNSI) using the neutrino burst from a Galactic supernova. SNSI modify the resonant flavor conversion and, correspondingly, the neutronization burst signal, and may be…

High Energy Physics - Phenomenology · Physics 2025-08-25 Bhaskar Dutta , Aparajitha Karthikeyan , Nityasa Mishra , Yago Porto , Louis E. Strigari

Neutrino nonstandard interactions (NSI) were investigated earlier in the solar case and were shown to reduce the tensions between the data and the large mixing angle solution predictions. We extend the previous framework to the supernova…

High Energy Physics - Phenomenology · Physics 2013-05-29 C. R. Das , Joao Pulido

Neutrino non-standard interactions (NSI), previously introduced for the sun, are studied in the supernova context. For normal hierarchy the probability for electron neutrinos and antineutrinos at low energy ($E\lesssim 0.8-0.9 MeV$) is…

High Energy Physics - Phenomenology · Physics 2013-04-10 C. R. Das , Joao Pulido

We present a new analysis of non-universal and flavor changing non-standard neutrino interactions (NSI) in \nu_e e or \bar{\nu}_e e scattering. Our global analysis of these process includes all relevant experiments, such as the most recent…

High Energy Physics - Phenomenology · Physics 2009-09-17 J. Barranco , O. G. Miranda , C. A. Moura , J. W. F. Valle

Neutrino interactions with an external environment can in influence the neutrino oscillation pattern and the oscillations can be damped as a result of the neutrino quantum decoherence. In particular, the quantum decoherence of neutrino…

High Energy Physics - Phenomenology · Physics 2020-05-20 Konstantin Stankevich , Alexander Studenikin

The impact of new physics on the interactions of neutrinos with other particles can be parametrized by a set of effective four-fermion operators called non-standard neutrino interactions (NSIs). This NSI framework is useful for studying the…

High Energy Physics - Phenomenology · Physics 2026-04-23 Ayres Freitas , Matthew Low

We review the distortions of spectra of relic neutrinos due to the interactions with electrons, positrons, and neutrinos in the early universe. We solve integro-differential kinetic equations for the neutrino density matrix, including…

High Energy Physics - Phenomenology · Physics 2022-12-05 Kensuke Akita , Masahide Yamaguchi

We investigate non-standard neutrino interactions (NSIs) in the triplet seesaw model featuring non-trivial correlations between NSI parameters and neutrino masses and mixing parameters. We show that sizable NSIs can be generated as a…

High Energy Physics - Phenomenology · Physics 2009-02-18 Michal Malinsky , Tommy Ohlsson , He Zhang

We consider the effect of non-standard neutrino interactions (NSI, for short) on the propagation of neutrinos through the supernova (SN) envelope within a three-neutrino framework and taking into account the presence of a neutrino…

High Energy Physics - Phenomenology · Physics 2010-04-06 A. Esteban-Pretel , R. Tomas , J. W. F. Valle

We analyze the possibility of probing non-standard neutrino interactions (NSI, for short) through the detection of neutrinos produced in a future galactic supernova (SN).We consider the effect of NSI on the neutrino propagation through the…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Esteban-Pretel , R. Tomàs , J. W. F. Valle

We study the decoupling process of neutrinos in the early universe in the presence of three-flavour oscillations. The evolution of the neutrino spectra is found by solving the corresponding momentum-dependent kinetic equations for the…

High Energy Physics - Phenomenology · Physics 2016-07-29 Pablo F. de Salas , Sergio Pastor
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