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Determining where, when, and how neutrino flavor oscillations must be included in large-scale simulations of hot and dense astrophysical environments is an enduring challenge that must be tackled to obtain accurate predictions. Using an…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Julien Froustey , Francois Foucart , Christian Hall , James P. Kneller , Debraj Kundu , Zidu Lin , Gail C. McLaughlin , Sherwood Richers

We analyse the ground state of spinless fermions on a lattice in a weakly disordered potential, interacting via a nearest neighbour interaction, by applying the self-consistent Hartree-Fock approximation. We find that charge density…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Paul N. Walker , Yuval Gefen , Gilles Montambaux

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

Neutrino oscillation experiments provide a unique tool for probing neutrino-matter interactions, especially those involving the tau neutrino. We describe the sensitivity of the present atmospheric neutrino data to these interactions in the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alexander Friedland , Cecilia Lunardini , Michele Maltoni

In supersymmetric (SUSY) models the misalignment between fermion and sfermion families introduces unsuppressed flavor-changing processes. Even if the mass parameters are chosen to give no flavor violation, family dependent radiative…

High Energy Physics - Phenomenology · Physics 2014-11-17 J. I. Illana , M. Masip

We study a number of models, based on a non-Abelian discrete group, that successfully reproduce the simple and predictive Yukawa textures usually associated with U(2) theories of flavor. These models allow for solutions to the solar and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alfredo Aranda , Christopher D. Carone , Richard F. Lebed

We present a concise review of the experimental developments on neutrino mixing and their theoretical implications as presented and discussed at this Conference. The recent data disfavour many models but the surviving ones still span a wide…

High Energy Physics - Phenomenology · Physics 2022-03-02 G. Altarelli

We have updated the constraints on flavour universal neutrino self-interactions mediated by a heavy scalar, in the effective 4-fermion interaction limit. We use the relaxation time approximation to modify the collisional neutrino Boltzmann…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-30 Shouvik Roy Choudhury , Steen Hannestad , Thomas Tram

Neutrino masses and mixings are analyzed in terms of left-handed fields and a 6x6 complex symmetric mass matrix whose singular values are the neutrino masses. An angle x_nu characterizes the kind of the neutrinos, with x_nu = 0 for Dirac…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kevin Cahill

In the case of neutrinos having significant masses to be measured in direct search, there are sizeable corrections to the PMNS matrix. We show the universality of loop effects from any new physics sector and discuss the seesaw-extended MSSM…

High Energy Physics - Phenomenology · Physics 2014-11-12 W. G. Hollik

We examine the parameter space region of the inverse seesaw model that is consistent with neutrino oscillation data. We focus on the correlation between the current limits from the search of the $\mu\to e\gamma$ lepton flavor violating…

High Energy Physics - Phenomenology · Physics 2023-08-28 J. C. Garnica , G. Hernández-Tomé , E. Peinado

In the presence of both direct and indirect unitarity violation in the lepton mixing matrix, we derive a complete set of series expansion formulas for neutrino oscillation probabilities in matter of constant density. Expansions in the mass…

High Energy Physics - Phenomenology · Physics 2016-03-02 Yu-Feng Li , Shu Luo

We uncover an interesting phenomenon that neutrino flavor transformation in slowly varying matter density imitates almost exactly that of vacuum neutrino oscillation under suitably chosen experimental parameters. It allows us to have…

High Energy Physics - Phenomenology · Physics 2009-10-31 Hisakazu Minakata , Hiroshi Nunokawa

We investigate the constraints on four-Fermi contact interactions from low-energy lepton-quark and lepton-lepton scattering experiments --- polarization asymmetries in electron (muon)-nucleon scattering experiments, cesium and thallium atom…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gi-Chol Cho , Kaoru Hagiwara , Seiji Matsumoto

Neutrino-neutrino refraction in dense media can cause self-induced flavor conversion triggered by collective run-away modes of the interacting flavor oscillators. The growth rates were usually found to be of order a typical vacuum…

High Energy Physics - Phenomenology · Physics 2016-03-25 Sovan Chakraborty , Rasmus Sloth Hansen , Ignacio Izaguirre , Georg Raffelt

In the vicinity of neutron star mergers (NSMs), it is possible for the neutrino self-interaction potential to cancel with the matter potential leading to matter neutrino resonance (MNR). MNR is one of the most interesting mechanisms by…

High Energy Astrophysical Phenomena · Physics 2025-10-23 Owais Ullah Faiz , Mushahid Hussain , Shashank Shalgar

Existing oscillation data point to nonzero neutrino masses with large mixings. We analyze the generic features of the neutrino Majorana mass matrix with inverted hierarchy and construct realistic {\it minimal schemes} for the neutrino mass…

High Energy Physics - Phenomenology · Physics 2009-11-07 Duane A. Dicus , Hong-Jian He , John N. Ng

Vacuum neutrino-oscillation probabilities from a simple three-flavor model with both mass-square differences and timelike Fermi-point splittings have been presented in a previous article [hep-ph/0504274]. Here, further results are given:…

High Energy Physics - Phenomenology · Physics 2013-05-29 Frans R. Klinkhamer

Neutrino oscillation experiments present anomalous results across a vast range of baselines and energies. Here we show that a 3+1 scenario in which sterile neutrinos feel a novel matter potential $V_s$ proportional to background density of…

High Energy Physics - Phenomenology · Physics 2026-05-15 Sabya Sachi Chatterjee , Antonio Palazzo

Our analysis involves enhancing the $\Delta(54)$ flavor symmetry model with Inverse Seesaw mechanism along with two SM Higgs through the incorporation of distinct flavons. Additionally, we introduce supplementary $Z_2\otimes Z_3 \otimes…

High Energy Physics - Phenomenology · Physics 2023-12-06 Hrishi Bora , Ng. K. Francis , Animesh Barman , Bikash Thapa