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相关论文: Current unknowns in the three neutrino framework

200 篇论文

Neutrino mass hierarchy, CP-violation, and octant of $\theta_{23}$ are the fundamental unknowns in neutrino oscillations. In order to address all these three unknowns, we study the physics reach of a setup, where we replace the antineutrino…

高能物理 - 唯象学 · 物理学 2017-08-23 Sanjib Kumar Agarwalla , Monojit Ghosh , Sushant K. Raut

The experimental evidences in favor of oscillations of solar (and KamLAND) and atmospheric (and K2K) neutrinos are briefly reviewed and accommodated in the framework of three-neutrino mixing. The implications for the values of neutrino…

高能物理 - 唯象学 · 物理学 2014-11-17 Carlo Giunti

The various global analyses of available neutrino oscillation data indicate the presence of the standard $3+0$ neutrino oscillation picture. However, there are a few short baseline anomalies that point to the possible existence of a fourth…

高能物理 - 唯象学 · 物理学 2021-10-05 Nishat Fiza , Mehedi Masud , Manimala Mitra

We examine the performance of the six-parameter $\Lambda$CDM model and its extensions in light of recent cosmological observations, with particular focus on neutrino properties inferred from cosmology. Using a broad suite of nine…

宇宙学与河外天体物理 · 物理学 2025-02-12 Helena García Escudero , Kevork N. Abazajian

The pattern of neutrino mixing, usually parameterized by the Pontecorvo-Maki-Nakagawa-Sakata $U_{\rm PMNS}$ matrix, still remains a striking puzzle in particle physics. $U_{\rm PMNS}$ is one of six possible products of multiplying three…

高能物理 - 唯象学 · 物理学 2026-03-16 Jarosław Duda , Janusz Gluza , Biswajit Karmakar

Assuming lepton number conservation, hermiticity of the neutrino mass matrix and $\nu_{\mu} - \nu_{\tau}$ exchange symmetry, we show that we can determine the neutrino mass matrix completely from the existing data. Comparing with the…

高能物理 - 唯象学 · 物理学 2014-05-26 Shreyashi Chakdar , Kirtiman Ghosh , S. Nandi

I discuss the theoretical background and the status of neutrino oscillation parameters from the current worlds' global data sample and latest flux calculations. I give their allowed ranges, best fit values and discuss the small parameters…

高能物理 - 唯象学 · 物理学 2009-09-17 J. W. F. Valle

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…

高能物理 - 唯象学 · 物理学 2007-05-23 J. W. F. Valle

Oscillations of the Dirac neutrinos of three generations in vacuum are considered with allowance made for the effect of the CP-violating leptonic phase (analogue of the quark CP phase) in the lepton mixing matrix. The general formulas for…

高能物理 - 唯象学 · 物理学 2009-11-07 D. A. Ryzhikh , K. A. Ter-Martirosyan

The evidences in favor of solar and atmospheric neutrino oscillations are briefly reviewed and shown to be gracefully accommodated in the framework of three-neutrino mixing with bilarge mixing.

高能物理 - 唯象学 · 物理学 2009-11-07 C. Giunti

We inspect recently updated neutrino oscillation data -- specifically coming from the Tokai to Kamioka and NuMI Off-axis $\nu_e$ Appearance experiments -- and how they are analyzed to determine whether the neutrino mass ordering is normal…

With the accumulation of many years of solar and atmospheric neutrino oscillation data, the approximate form of the 3 times 3 neutrino mixing matrix is now known. What is not known is the (presumably Majorana) neutrino mass matrix M_{nu}…

高能物理 - 唯象学 · 物理学 2007-05-23 Ernest Ma

The current status of the physics of massive neutrinos is reviewed with a forward-looking emphasis. The article begins with the general phenomenology of neutrino oscillations in vacuum and matter and documents the experimental evidence for…

高能物理 - 唯象学 · 物理学 2009-09-15 V. Barger , D. Marfatia , K. Whisnant

We present an up-to-date global analysis of solar, atmospheric, reactor, and accelerator neutrino data in the framework of three-neutrino oscillations. We provide results on the determination of theta_13 from global data and discuss the…

高能物理 - 唯象学 · 物理学 2013-01-04 M. C. Gonzalez-Garcia , Michele Maltoni , Jordi Salvado , Thomas Schwetz

Neutrino mixing and basics of neutrino oscillations are considered. Recent evidences in favour of neutrino oscillations, obtained in the solar and atmospheric neutrino experiments, are discussed. Neutrino oscillations in the solar and…

高能物理 - 唯象学 · 物理学 2007-05-23 S. M. Bilenky

We present updated values for the mass-mixing parameters relevant to neutrino oscillations, with particular attention to emerging hints in favor of theta_13>0. We also discuss the status of absolute neutrino mass observables, and a possible…

高能物理 - 唯象学 · 物理学 2008-09-19 G. L. Fogli , E. Lisi , A. Marrone , A. Palazzo , A. M. Rotunno

The only experimentally observed phenomenon that lies outside the standard model of the electroweak interaction is neutrino oscillations. A way to try to unify the extensive neutrino oscillation data is to add a phenomenological mass term…

核理论 · 物理学 2017-08-23 D. J. Ernst , B. K. Cogswell , H. R. Burroughs , J. Escamilla-Roa , D. C. Latimer

The mixing of three active neutrino flavors is parameterized by the unitary PMNS matrix. If there are more than three neutrino flavors and if the extra generations are heavy isosinglets, the effective $3\times 3$ mixing matrix for the three…

高能物理 - 唯象学 · 物理学 2021-05-11 Luis Salvador Miranda , Pedro Pasquini , Ushak Rahaman , Soebur Razzaque

The recent measurement of a non-zero neutrino mixing angle $\theta_{13}$ requires a modification of the tri-bimaximal mixing pattern that predicts a zero value for it. We propose a new neutrino mixing pattern based on a spontaneously-broken…

高能物理 - 唯象学 · 物理学 2013-05-30 Y. H. Ahn , Seungwon Baek , Paolo Gondolo

Measurements of various features of the fluxes of atmospheric and solar neutrinos have provided evidence for neutrino oscillations and therefore for neutrino masses and mixing. We review the phenomenology of neutrino oscillations in vacuum…

高能物理 - 唯象学 · 物理学 2009-09-29 M. C. Gonzalez-Garcia , Y. Nir