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Neutrino oscillation experiments in the past decades have greatly improved our knowledge on neutrinos by measuring the fundamental neutrino parameters. The ongoing and upcoming neutrino oscillation experiments are intended to pin down the…

High Energy Physics - Phenomenology · Physics 2013-07-16 Tommy Ohlsson , He Zhang , Shun Zhou

We consider the impact of neutrino self-interactions described by an effective four-fermion coupling on cosmological observations. Implementing the exact Boltzmann hierarchy for interacting neutrinos first derived in [arxiv:1409.1577] into…

Cosmology and Nongalactic Astrophysics · Physics 2017-11-29 Isabel M. Oldengott , Thomas Tram , Cornelius Rampf , Yvonne Y. Y. Wong

We review a new interdisciplinary field between Geology and Physics: the study of the Earth's geo-neutrino flux. We describe competing models for the composition of the Earth, present geological insights into the make up of the continental…

Geophysics · Physics 2015-06-17 G. Bellini , A. Ianni , L. Ludhova , F. Mantovani , W. F. McDonough

Exact solutions of the Dirac--Pauli equation for massive neutrino with anomalous magnetic moment interacting with dense matter and strong electromagnetic field are found. The complete system of neutrino wavefunctions, which show spin…

High Energy Physics - Phenomenology · Physics 2010-02-02 E. V. Arbuzova , A. E. Lobanov , E. M. Murchikova

It was recently claimed that the observed physical neutrinos cannot be of Majorana type because such particles lack vector interactions. Contrary to this claim we show that if the Majorana neutrino is massless it is indistinguishable from…

High Energy Physics - Phenomenology · Physics 2007-05-23 Steen Hannestad

In this letter we propose a possible mechanism of left- and right-handed neutrino couplings to photons, which arises quite naturally in non-commutative gauge field theory. We estimate the predicted additional energy-loss in stars induced by…

High Energy Physics - Phenomenology · Physics 2011-10-11 Peter Schupp , Josip Trampetic , Julius Wess , Georg Raffelt

We proceed with the construction of normalizable Dirac wave packets for treating chiral oscillations in the presence of an external magnetic field. Both chirality and helicity quantum numbers correspond to variables of fundamental…

High Energy Physics - Theory · Physics 2009-11-10 Alex E. Bernardini

A mechanism for generating massive but naturally light Dirac neutrinos is proposed. It involves composite Higgs within the standard model as well as some new interaction beyond the standard model. According to this scenario, a neutrino mass…

High Energy Physics - Phenomenology · Physics 2009-10-31 P. P. Divakaran , G. Rajasekaran

It is well known that Majorana neutrinos have a pure axial neutral current interaction while Dirac neutrinos have the standard vector-axial interaction. In spite of this crucial difference, usually Dirac neutrino processes differ from…

High Energy Physics - Phenomenology · Physics 2015-06-22 J. Barranco , D. Delepine , V. Gonzalez Macias , C. Lujan-Peschard , M. Napsuciale

In this talk, we will discuss phenomenology of new physics associated with neutrinos, in particular, non-standard neutrino interactions, non-unitarity of the lepton mixing matrix, and secret neutrino interactions mediated by a light field.

High Energy Physics - Phenomenology · Physics 2017-12-20 Toshihiko Ota

Due to their weak interactions, neutrinos can polarize a medium and acquire an induced charge. We consider the Cherenkov radiation emitted by neutrinos due to their effective electromagnetic interactions as they pass through a polarizable…

High Energy Physics - Phenomenology · Physics 2014-11-17 Juan Carlos D'Olivo , Jose F. Nieves , Palash B. Pal

We have presented a review of the properties of neutrinos and their interactions with matter. The different (anti)neutrino processes like the quasielastic scattering, inelastic production of mesons and hyperons, and the deep inelastic…

High Energy Physics - Phenomenology · Physics 2022-12-13 M. Sajjad Athar , A. Fatima , S. K. Singh

We consider non-renormalizable interaction term as a perturbation of the conventional neutrino mass matrix. Quantum gravitational (Planck scale )effects lead to an effective $SU(2)_L\times U(1)$ invariant dimension-5 Lagrangian involving…

High Energy Physics - Phenomenology · Physics 2019-08-23 Bipin Singh Koranga

Dynamics of the magnetization in ferromagnets is examined in the presence of transport electrons allowing the latter to interact. It is found that the existence of inhomogeneities such as domain wall (DW) structures, leads to changes that…

Strongly Correlated Electrons · Physics 2009-11-13 Paulo F. Farinas

Nonmagnetic spheres confined in a ferrofluid layer (magnetic holes) present dipolar interactions when an external magnetic field is exerted. The interaction potential of a microsphere pair is derived analytically, with a precise care for…

Soft Condensed Matter · Physics 2009-11-10 Renaud Toussaint , Jørgen Akselvoll , Eirik G. Flekkøy , Geir Helgesen , Arne T. Skjeltorp

We provide updated bounds on non-standard neutrino interactions based on data from the Planck satellite as well as auxiliary cosmological measurements. Two types of models are studied - A Fermi-like 4-point interaction and an interaction…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Maria Archidiacono , Steen Hannestad

We investigate neutrino-nucleus interactions at energies around 1 GeV. In this regime, the main contributions to the cross sections come from quasi-elastic and $\Delta$ production processes. Our formalism, based on the Impulse Approximation…

High Energy Physics - Phenomenology · Physics 2008-11-26 Omar Benhar , Davide Meloni

We investigate the interaction between the cosmological relic neutrinos, and primordial gravitational waves entering the horizon before the electroweak phase transition, corresponding to observable frequencies today nu_0 <= 10^-5 Hz. We…

Astrophysics · Physics 2009-11-13 Massimiliano Lattanzi , Giovanni Montani

One potential star-planet interaction mechanism for hot Jupiters involves planetary heating via currents set up by interactions between the stellar wind and planetary magnetosphere. Early modeling results indicate that such currents, which…

Earth and Planetary Astrophysics · Physics 2017-01-11 Derek L. Buzasi

Cosmology is well suited to study the effects of long range interactions due to the large densities in the early Universe. In this article, we explore how the energy density and equation of state of a fermion system diverge from the…

High Energy Physics - Phenomenology · Physics 2021-05-26 Ivan Esteban , Jordi Salvado
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