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Collective pair conversion $\nu_e\bar\nu_e\leftrightarrow \nu_{x}\bar\nu_{x}$ by forward scattering, where $x=\mu$ or $\tau$, may be generic for supernova neutrino transport. Depending on the local angular intensity of the electron lepton…

High Energy Physics - Phenomenology · Physics 2017-01-12 Ignacio Izaguirre , Georg Raffelt , Irene Tamborra

Neutrino emission drives neutron star cooling for the first several hundreds of years after its birth. Given the low energy ($\sim$ keV) nature of this process, one expects very few nonstandard particle physics contributions which could…

Astrophysics · Physics 2009-11-10 Prashanth Jaikumar , K. R. S. Balaji , Charles Gale

We investigate wave propagation and energy transport in magnetic elements, which are representatives of small scale magnetic flux concentrations in the magnetic network on the Sun. This is a continuation of earlier work by Hasan et al.…

Solar and Stellar Astrophysics · Physics 2015-05-14 G. Vigeesh , S. S. Hasan , O. Steiner

The cross sections of elastic neutrino scattering on electrons and nuclei in the regime of low-energy transfer are known to be very sensitive to neutrino electromagnetic properties. In particular, the magnetic moment of the neutrino can be…

High Energy Physics - Phenomenology · Physics 2022-03-08 Georgy Donchenko , Konstantin Kouzakov , Alexander Studenikin

This paper delves into the distribution of semi-inclusive events involving the emission of two nucleons in (anti) neutrino charged-current scattering. The analysis is conducted within the framework of relativistic mean field theory applied…

High Energy Physics - Phenomenology · Physics 2024-02-21 V. L. Martinez-Consentino , A. M. Cantizani , J. E. Amaro

Based on a recent communication by the present authors the question of energy dissipation in magneto hydrodynamical waves in an inflating background in general relativity is examined. It is found that the expanding background introduces a…

General Relativity and Quantum Cosmology · Physics 2010-11-03 Ajanta Das , S. Chatterjee

We derive the Euler-Heisenberg solutions that describe electromagnetic waves propagating through very intense uniform magnetic or electric background, with the effective metric approach. We first explore the case of a magnetic background:…

High Energy Physics - Theory · Physics 2021-02-24 Elda Guzman-Herrera , Nora Breton

It is becoming ever clearer that the neutrino signal from the next supernova in our Galaxy can reveal missing information about the neutrino as well as allowing us to probe the explosion of the star by decoding the temporal and spectral…

High Energy Physics - Phenomenology · Physics 2010-10-14 James P. Kneller

We derive a `Kompaneets equation' for neutrinos, which describes how the distribution function of neutrinos interacting with matter deviates from a Fermi-Dirac distribution with zero chemical potential. To this end, we expand the collision…

High Energy Astrophysical Phenomena · Physics 2019-09-02 Yudai Suwa , Hiroaki W. H. Tahara , Eiichiro Komatsu

The spatial-dependent propagation model has been successfully used to explain diverse observational phenomena, including the spectral hardening of cosmic-ray nuclei above $200$ GV, the large-scale dipole anisotropy and the diffusive gamma…

High Energy Astrophysical Phenomena · Physics 2020-08-26 Zhen Tian , Wei Liu , Bo Yang , Xue-Dong Fu , Hai-Bo Xu , Yu-hua Yao , Yi-Qing Guo

The neutrino-nucleon scattering in a collapsing star envelope with a strong magnetic field is investigated. The transferred by neutrinos momentum asymmetry along the field direction is obtained. It is shown that the neutrino-nucleon…

Astrophysics · Physics 2007-05-23 A. A. Gvozdev , I. S. Ognev

The propagation of neutrinos in a gravitational field is studied. A method of calculating a covariant quantum-mechanical phase in a curved space-time is presented. The result is used to calculate gravitational effects on the neutrino…

High Energy Physics - Phenomenology · Physics 2014-11-17 N. Fornengo , C. Giunti , C. W. Kim , J. Song

The neutrino self-energy is calculated in a weakly magnetized plasma consists of electrons, protons, neutrons and their anti-particles and using this we have calculated the neutrino effective potential up to order $M^{-4}_W$. In the absence…

High Energy Physics - Phenomenology · Physics 2009-12-10 Sarira Sahu , Nissim Fraija , Yong-Yeon Keum

For photons that propagate through a gas of neutrinos with a non-zero chemical potential, the left-handed and right-handed polarization modes acquire different dispersion relations. This is due to the CP and CPT-odd terms induced by such a…

High Energy Physics - Phenomenology · Physics 2009-10-30 Subhendra Mohanty , Jose F. Nieves , Palash B. Pal

In the charged pion decay, a neutrino is produced in pair with a charged lepton and they have the same production rate. In this paper we show that neutrinos have their own space-time correlations in a wide area and are detected in a…

High Energy Physics - Phenomenology · Physics 2012-04-25 Kenzo Ishikawa , Yutaka Tobita

When neutrinos propagate in a background, their gravitational couplings are modified by their weak interactions with the particles in the background. In a medium that contains electrons but no muons or taons, the matter-induced…

High Energy Physics - Phenomenology · Physics 2010-12-03 H. Athar , Jose F. Nieves

We revisit the emissivity from neutrino pair bremsstrahlung in neutron-neutron scattering, nn -> nn nu nubar, which was calculated from the one-pion exchange potential including correlation effects by Friman and Maxwell. Starting from the…

Nuclear Theory · Physics 2009-11-10 A. Schwenk , P. Jaikumar , C. Gale

A quantitative understanding of the weak nuclear response is a prerequisite for the analyses of neutrino experiments such as K2K and MiniBOONE, which measure energy and angle of the muons produced in neutrino-nucleus interactions in the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Omar Benhar , Nicola Farina , Hiroki Nakamura , Makoto Sakuda , Ryoichi Seki

Neutrino scattering on liquid and solid targets at low energy transfer can serve both as a tool for searching the physics beyond the Standard Model, for example, such as neutrino electromagnetic interactions, and as a test of the Standard…

High Energy Physics - Phenomenology · Physics 2021-11-08 Georgy Donchenko , Konstantin Kouzakov , Alexander Studenikin

In the presence of a thermal medium or an external electro-magnetic field, neutrinos can interact with photon, mediated by the corresponding charged leptons (real or virtual). The effect of a medium or an electromagnetic field is two-fold -…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kaushik Bhattacharya , Avijit K. Ganguly