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One of the greatest uncertainties in any modeling of inner engine of core-collapse supernova (CCSN) is neutrino flavor conversions driven by neutrino self-interactions. We carry out large-scale numerical simulations of multi-energy,…

高能天体物理现象 · 物理学 2023-06-07 Hiroki Nagakura

The upcoming galactic core-collapse supernova is expected to produce a considerable number of neutrino events within terrestrial detectors. By using Bayesian inference techniques, we address the feasibility of distinguishing among various…

高能天体物理现象 · 物理学 2024-01-22 Sajad Abbar , Maria Cristina Volpe

We investigated the impact of a spatially varying matter potential $\lambda$, coming from neutrino-electron forward scattering, on the emergence of fast neutrino flavor conversion (FFC) triggered by the presence of zero crossings in the…

高能天体物理现象 · 物理学 2025-04-16 Soumya Bhattacharyya , Meng-Ru Wu , Zewei Xiong

We revisit the minimal type II seesaw mechanism generating the Majorana neutrino mass matrix $M^{\nu}$, under the assumption that two entries of $M^{\nu}$ vanish. Such flavor structures are known as two-zero textures. Processes with charged…

高能物理 - 唯象学 · 物理学 2026-05-19 Lorenzo Calibbi , Xiyuan Gao , Man Yuan

In an environment with high-density neutrinos formed in a core-collapse supernova (CCSN), the neutrinos exhibit nonlinear and complex oscillation behaviors due to their self-interactions. The onset of this nonlinear oscillation can be…

高能物理 - 唯象学 · 物理学 2021-04-28 Taiki Morinaga

We study the effects of non-standard self-interactions (NSSI) of neutrinos streaming out of a core-collapse supernova. We show that with NSSI, the standard linear stability analysis gives rise to linearly as well as exponentially growing…

高能物理 - 唯象学 · 物理学 2018-02-21 Amol Dighe , Manibrata Sen

Collisional flavor instabilities, driven by differing neutrino and antineutrino reaction rates, are expected to occur in dense astrophysical environments like supernovae and neutron star mergers, but have yet to be incorporated in…

高能物理 - 唯象学 · 物理学 2025-07-22 Julien Froustey

The magnetorotational collapse of massive stars copiously emits neutrinos of all flavors, with a prominent hierarchy between the non-electron and electron flavor average energies. Relying on a three-dimensional neutrino-magnetohydrodynamic…

高能天体物理现象 · 物理学 2026-05-15 Marco Manno , Pablo Martínez-Miravé , Irene Tamborra

The discovery of neutrino oscillations implies that neutrinos are massive and mixed, necessitating an extension of the Standard Model, which may require the introduction of non-standard neutrino interactions (NSI). We investigate the…

高能物理 - 唯象学 · 物理学 2023-08-16 Sudip Jana , Sophie Klett

Our understanding of neutrino flavor conversion in the supernova core is still preliminary, despite its likely relevance to the neutrino-driven supernova mechanism. We present multi-angle and multi-energy numerical simulations of neutrino…

高能天体物理现象 · 物理学 2024-09-25 Shashank Shalgar , Irene Tamborra

We perform one-zone simulations of the infall epoch of a pre-supernova stellar core in the presence of neutrino flavor changing scattering interactions. Our calculations give a self-consistent assessment of the relationship between flavor…

天体物理学 · 物理学 2008-11-26 Philip S. Amanik , George M. Fuller

We derive the effective Hamiltonian describing collective oscillations of Majorana neutrinos with a transition magnetic moment, allowing for the presence of scalar and pseudoscalar nonstandard neutrino self-interactions (NSSIs). Using this…

高能物理 - 唯象学 · 物理学 2021-05-11 Oleg G. Kharlanov , Pavel I. Shustov

In astrophysical environments such as core-collapse supernovae (CCSNe) and binary neutron star mergers (BNSMs), neutrinos potentially experience substantial flavor mixing due to the refractive effects of neutrino self-interactions.…

高能天体物理现象 · 物理学 2025-02-25 Jiabao Liu , Hiroki Nagakura , Masamichi Zaizen , Lucas Johns , Ryuichiro Akaho , Shoichi Yamada

If $\nu_\mu$ or $\nu_\tau$ mix with $\nu_e$, neutrino oscillations and collisions in a supernova (SN) core allow these flavors effectively to participate in $\beta$ equilibrium and thus to obtain a large chemical potential. If a sterile…

天体物理学 · 物理学 2009-10-22 G. Raffelt , G. Sigl

In this {\it Letter}, we present a compelling and robust argument for the roles of neutrino fast flavor conversion (FFC) in the explosion mechanism of core-collapse supernova (CCSN), combining the {\it multi-angle} FFC subgrid model rooted…

Neutrinos propagating in dense neutrino media such as core-collapse supernovae and neutron star merger remnants can experience the so-called fast flavor conversions on scales much shorter than those expected in vacuum. A very generic class…

高能天体物理现象 · 物理学 2022-03-31 Sajad Abbar , Francesco Capozzi

Flavor-breaking interactions due to heavy new physics can be probed at a 10 TeV muon collider in the high-energy production of quarks and leptons. The high collision energy mitigates the suppression of the new interactions, offering…

高能物理 - 唯象学 · 物理学 2025-12-23 Alfredo Glioti , David Marzocca , Andrea Wulzer

The flavor evolution of neutrinos in core collapse supernovae and neutron star mergers is a critically important unsolved problem in astrophysics. Following the electron flavor evolution of the neutrino system is essential for calculating…

高能物理 - 唯象学 · 物理学 2023-12-29 Evan Grohs , Sherwood Richers , Sean M. Couch , Francois Foucart , James P. Kneller , G. C. McLaughlin

Self-induced flavor conversion of supernova (SN) neutrinos is a generic feature of neutrino-neutrino dispersion. The corresponding run-away modes in flavor space can spontaneously break the original symmetries of the neutrino flux and in…

高能物理 - 唯象学 · 物理学 2016-04-04 Sovan Chakraborty , Rasmus Sloth Hansen , Ignacio Izaguirre , Georg Raffelt

We all know that in the dense anisotropic interior of the star, neutrino-neutrino forward-scattering can lead to fast collective neutrino oscillations, which has striking consequences on flavor dependent neutrino emission and can be crucial…

高能物理 - 唯象学 · 物理学 2021-01-06 Soumya Bhattacharyya