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Related papers: Sterile Neutrinos: Cosmology vs Short-BaseLine Exp…

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This paper examines sterile neutrino oscillation models in light of recently published results from the MiniBooNE Experiment. The new MiniBooNE data include the updated neutrino results, including the low energy region, and the first…

High Energy Physics - Phenomenology · Physics 2014-11-20 G. Karagiorgi , Z. Djurcic , J. M. Conrad , M. H. Shaevitz , M. Sorel

Current cosmological data drop an interesting hint about the existence of sub-eV sterile neutrinos, which should be a part of the cosmic neutrino background (C$\nu$B). We point out that such light sterile neutrinos may leave a distinct…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-21 Y. F. Li , Shu Luo , Zhi-zhong Xing

We perform a global analysis of cosmological observables in generalized cosmologies which depart from $\Lambda$CDM models by allowing non-vanishing curvature $\Omega_k\neq 0$, dark energy with equation of state with $\omega\neq -1$, the…

High Energy Physics - Phenomenology · Physics 2011-06-17 M. C. Gonzalez-Garcia , Michele Maltoni , Jordi Salvado

A desirable feature of models with large extra dimensions and a TeV range string scale is the possibility to understand an ultralight sterile neutrino needed for a simultaneous understanding of solar, atmospheric and LSND results as a…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. O. Caldwell , R. N. Mohapatra , S. J. Yellin

We point out that in scenarios with a low reheating temperature $T_R << 100$ MeV at the end of (the last episode of) inflation or entropy production, the abundance of sterile neutrinos becomes largely independent of their coupling to active…

High Energy Physics - Phenomenology · Physics 2009-11-10 Graciela B. Gelmini

A brief analysis of the result of the Neutrino-4 experiment and the results of other experiments on the search for a sterile neutrino is presented. It is noted that a joint analysis of the results of the Neutrino-4 experiment and the data…

High Energy Physics - Phenomenology · Physics 2023-02-23 A. P. Serebrov , R. M. Samoilov , M. E. Chaikovskii , O. M. Zherebtsov

Neutrinos, being the only fermions in the Standard Model of Particle Physics that do not possess electromagnetic or color charges, have the unique opportunity to communicate with fermions outside the Standard Model through mass mixing. Such…

High Energy Physics - Phenomenology · Physics 2021-09-06 Basudeb Dasgupta , Joachim Kopp

In several recent papers it was claimed that SN 1987A data supports the existence of 4.0 eV and 21.4 eV active neutrino mass eigenstates, and it was shown that such large masses could be made consistent with existing constraints including…

Cosmology and Nongalactic Astrophysics · Physics 2015-12-09 Man Ho Chan , Robert Ehrlich

Current measurements of the low and high redshift Universe are in tension if we restrict ourselves to the standard six parameter model of flat $\Lambda$CDM. This tension has two parts. First, the Planck satellite data suggest a higher…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-10 Mark Wyman , Douglas H. Rudd , R. Ali Vanderveld , Wayne Hu

The case for small neutrino mass differences from atmospheric and solar neutrino oscillation experiments has become compelling, but leaves the overall neutrino mass scale m_nu undetermined. The most restrictive limit of m_nu < 0.8 eV arises…

Astrophysics · Physics 2009-11-07 G. G. Raffelt

This paper reviews the results of the LSND and MiniBooNE experiments. The primary goal of each experiment was to effect sensitive searches for neutrino oscillations in the mass region with $\Delta m^2 \sim 1$ eV$^2$. The two experiments are…

High Energy Physics - Experiment · Physics 2015-06-16 Janet M. Conrad , William C. Louis , Michael H. Shaevitz

This letter presents the results from the MiniBooNE experiment within a full "3+1" scenario where one sterile neutrino is introduced to the three-active-neutrino picture. In addition to electron-neutrino appearance at short-baselines, this…

We explore the sensitivity of an experiment at the Daya Bay site, with a point radioactive source and a few meter baseline, to neutrino oscillations involving one or more eV mass sterile neutrinos. We find that within a year, the entire 3+2…

High Energy Physics - Phenomenology · Physics 2013-05-21 Y. Gao , D. Marfatia

Neutrino oscillations successfully explain the flavor transitions observed in neutrinos produced in natural sources like the center of the sun and the earth atmosphere, and also from man-made sources like reactors and accelerators. These…

High Energy Physics - Phenomenology · Physics 2018-12-05 G. V. Stenico , D. V. Forero , O. L. G. Peres

We study sterile neutrinos in an extension of the standard model, based on the gauge group $SU(3)_C\otimes SU(3)_L\otimes SU(3)_R\otimes U(1)_N$, and use this model to illustrate how to apply cosmological limits to thermalized particles…

High Energy Physics - Phenomenology · Physics 2016-06-21 Cesar P. Ferreira , Marcelo M. Guzzo , Pedro C. de Holanda

Recent advances in cosmic observations have brought us to the verge of discovery of the absolute scale of neutrino masses. Nonzero neutrino masses are known evidence of new physics beyond the Standard Model. Our understanding of the…

We investigate the ability of the Short Baseline Neutrino (SBN) experimental program at Fermilab to test the globally-allowed (3+$N$) sterile neutrino oscillation parameter space. We explicitly consider the globally-allowed parameter space…

High Energy Physics - Phenomenology · Physics 2017-09-13 Davio Cianci , Andy Furmanski , Georgia Karagiorgi , Mark Ross-Lonergan

Cosmological neutrino mass and abundance measurements are reaching unprecedented precision. Testing their stability versus redshift and scale is a crucial issue, as it can serve as a guide for optimizing ongoing and future searches. Here,…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-13 Deng Wang , Olga Mena , Eleonora Di Valentino , Stefano Gariazzo

We present an upgrade of the 3+1 global fit of short-baseline neutrino oscillation data obtained with the addition of KARMEN and LSND nu_e-Carbon scattering data. We discuss the implications for the measurements of the effective neutrino…

High Energy Physics - Phenomenology · Physics 2015-06-03 Carlo Giunti , Marco Laveder

The existence of light sterile neutrinos, as predicted in several models, can help to explain a number of observations starting from dark mater to recent anomalies in short baseline experiments. In this paper we consider two models -…

High Energy Physics - Phenomenology · Physics 2022-02-16 Tapoja Jha , Sarif Khan , Manimala Mitra , Ayon Patra