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Related papers: Neutrinos from spin dynamics

200 papers

We propose a new type of a three-loop induced neutrino mass model with dark matter candidates which are required for the neutrino mass generation. The smallness of neutrino masses can be naturally explained without introducing super heavy…

High Energy Physics - Phenomenology · Physics 2016-01-13 Hiroshi Okada , Kei Yagyu

One can describe cosmological relic neutrinos by adding Lagrange multipliers to the Standard Model Lagrangian for them. The two possible Lagrange multipliers are a chemical potential, which fixes the mean neutrino/anti-neutrino asymmetry,…

High Energy Physics - Phenomenology · Physics 2013-02-13 Bob McElrath

The Seesaw mechanism predicted tiny neutrino masses by postulating a new large scale in particle physics, using new theoretical ideas prompted by the Standard Model. It adds credence to a theoretical vista that is a quarter century old, and…

High Energy Physics - Phenomenology · Physics 2009-11-10 P. Ramond

We derive the character of neutrino oscillations that results from a model of equivalence principle violation suggested recently by Damour and Polyakov as a plausible consequence of string theory. In this model neutrino oscillations will…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Halprin , C. N. Leung

The combined requirements, of (i) a natural solution to the fermion mass hierarchy problem and (ii) an explanation of both the atmospheric and solar neutrino problems, lead to an essentially unique picture of neutrino masses and mixing…

High Energy Physics - Phenomenology · Physics 2009-10-30 C. D. Froggatt , M. Gibson , H. B. Nielsen

In the framework of renormalisable relativistic quantum field theory, the explanation of neutrino masses necessarily requires the existence of new physical states. These new states may also be responsible for other unexplained phenomena in…

High Energy Physics - Phenomenology · Physics 2015-07-31 Marco Drewes

In the theory of the Dirac equation and in the standard model, the neutrino is massless. Both these theories use Lorentz invariance. In modern approaches however, spacetime is no longer smooth, and this modifies special relativity. We show…

General Physics · Physics 2017-12-29 Burra G. Sidharth

We investigate whether interaction between massive neutrinos and quintessence scalar field is the origin of the late time accelerated expansion of the universe. We present explicit formulas of the cosmological linear perturbation theory in…

High Energy Physics - Phenomenology · Physics 2009-09-01 Kiyotomo Ichiki , Yong-Yeon Keum

The Spin Light of neutrino, the process that becomes possible in matter for a neutrino with nontrivial electromagnetic properties, is considered for the case of nonequal neutrino masses in the initial and final states.

High Energy Physics - Phenomenology · Physics 2010-12-15 A. Grigoriev , A. Lokhov , A. Studenikin , A. Ternov

It has been shown that neutrino masses can be determined under the particle ansatz. In this paper, we give the general formulas of neutrino masses related to the neutrino oscillation parameters which show that there is a mass hierarchy…

High Energy Physics - Phenomenology · Physics 2018-03-01 Wen-Jie Wu , Xiang Zhou

Taking into account the helicity of a massless particle, which obeys a Dirac equation and is exposed to an electromagnetic field, one soon arrives at a Lagrangian containing a chiral supersymmetric operator. We can even achieve an analogous…

High Energy Physics - Phenomenology · Physics 2011-06-15 Tobias Gleim

Neutron interference measurements with macroscopic beam separation allow to study the influence of magnetic fields on spin properties. By calculating the interaction energy with a dynamic and deterministic model, we are able to establish…

Quantum Physics · Physics 2007-05-23 W. A. Hofer

In the framework of a Kaluza-Klein type theory with the Standard Model fields localized on a 4-dimensional section while gravity propagates in a full $4+\delta$-dimensional space-time, we examine a mechanism of naturally small neutrino mass…

High Energy Physics - Phenomenology · Physics 2009-10-31 Ashok Das , Otto C. W. Kong

The discovery of neutrino mass establishes the need for physics beyond the Standard Model. I summarize the status of two- and three-neutrino oscillation parameters from current solar, atmospheric, reactor and accelerator data. Future…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. W. F. Valle

At present, cosmological observations set the most stringent bound on the neutrino mass scale. Within the standard cosmological model ($\Lambda$CDM), the Planck collaboration reports $\sum m_\nu < 0.12\,\text{eV}$ at 95% CL. This bound,…

High Energy Physics - Phenomenology · Physics 2021-09-06 Miguel Escudero , Jacobo Lopez-Pavon , Nuria Rius , Stefan Sandner

Recently, a new non-Standard Model neutrino interaction mediated by a light scalar field was proposed, which renders the big-bang relic neutrinos of the cosmic neutrino background a natural dark energy candidate, the so-called Neutrino Dark…

Astrophysics · Physics 2009-11-11 Andreas Ringwald , Lily Schrempp

On the basis of the experimental data allowing existence of the anomalies going beyond the minimally extended Standard Model with three active neutrinos with different masses, we consider the generalized model with three active and three…

High Energy Physics - Phenomenology · Physics 2015-01-19 N. Yu. Zysina , S. V. Fomichev , V. V. Khruschov

We study the properties of spin-polarized neutron matter at next-to-next-to-next-to-leading order in chiral effective field theory, including two-, three-, and four-neutron interactions. The energy of spin-polarized neutrons is remarkably…

Nuclear Theory · Physics 2016-02-22 T. Krüger , K. Hebeler , A. Schwenk

Neutrino oscillations present the only robust example of experimentally detected physics beyond the standard model. This review discusses the established and several hypothetical beyond standard models neutrino characteristics and their…

Cosmology and Nongalactic Astrophysics · Physics 2014-07-08 Daniela Kirilova

It is pointed out (not for the first time) that the minimal Standard Model, without additional gauge-singlet right-handed neutrinos or isotriplet Higgs fields, allows for nonvanishing neutrino masses and mixing. The required interaction…

High Energy Physics - Phenomenology · Physics 2013-02-01 F. R. Klinkhamer