• Corpus ID: 251554559

# Non-Standard Neutrino Self-Interactions Can Cause Neutrino Flavor Equipartition Inside the Supernova Core

@inproceedings{Abbar2022NonStandardNS,
title={Non-Standard Neutrino Self-Interactions Can Cause Neutrino Flavor Equipartition Inside the Supernova Core},
year={2022}
}
We show that non-standard neutrino self-interactions can lead to total ﬂavor equipartition in a dense neutrino gas, such as those expected in core-collapse supernovae. In this ﬁrst investigation of this phenomenon in the multi-angle scenario, we demonstrate that such a ﬂavor equipartition can occur on very short scales, and therefore very deep inside the newly formed proto-neutron star, with a possible signiﬁcant impact on the physics of core-collapse supernovae. Our ﬁndings imply that future…

## References

SHOWING 1-10 OF 55 REFERENCES

### New effects of non-standard self-interactions of neutrinos in a supernova

• Physics
• 2017
Neutrino self-interactions are known to lead to non-linear collective flavor oscillations in a core-collapse supernova. We point out new possible effects of non-standard self-interactions (NSSI) of

### Flavor evolution of the neutronization neutrino burst from an O-Ne-Mg core-collapse supernova.

• Physics
Physical review letters
• 2008
These neutrino spectral features offer a unique potential probe of the conditions in the supernova environment and may allow us to distinguish between O-Ne-Mg and Fe core-collapse supernovae.

### Nonstandard neutrino-neutrino refractive effects in dense neutrino gases

• Physics
• 2008
We investigate the effects of nonstandard four-fermion neutrino-neutrino interactions on the flavor evolution of dense neutrino gases. We find that in the regions where the neutrino-neutrino

### Nonstandard neutrino self-interactions in a supernova and fast flavor conversions

• Physics
• 2018
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

### Flavor oscillations in the supernova hot bubble region: nonlinear effects of neutrino background.

• Physics
Physical review letters
• 2002
Contrary to previous studies, it is found that in the neutrino-driven wind the electron fraction Y(e) always stays below 0.5, corresponding to a neutron-rich environment as required by r-process nucleosynthesis.

### Core-collapse supernovae stymie secret neutrino interactions

• Physics
• 2019
Beyond-the-Standard-Model interactions of neutrinos among themselves -- {\it secret interactions} -- in the supernova core may prevent the shock revival, halting the supernova explosion. Besides, if

### Coherent development of neutrino flavor in the supernova environment.

• Physics
Physical review letters
• 2006
It is found that in the normal (inverted) mass hierarchy the more tangentially-propagating neutrinos and antineutrinos can initiate collective, simultaneous medium-enhanced flavor conversion of these particles across broad ranges of energy and propagation direction.

### Neutrino nonstandard interactions via light scalars in the Earth, Sun, supernovae, and the early Universe

• Physics
• 2020
Non-standard interactions (NSI) of neutrinos with matter mediated by a scalar field would induce medium-dependent neutrino masses which can modify oscillation probabilities. Generating observable

### Neutrino flavor transformation in supernovae as a probe for nonstandard neutrino-scalar interactions

• Physics
Physical Review D
• 2018
We explore the possibility of probing the nonstandard interactions between the neutrino and a hypothetical massive scalar or pseudoscalar via neutrino flavor transformation in supernovae. We find