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Related papers: Constraining four neutrino mass patterns from neut…

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The latest cosmological constraints on the sum of neutrino masses, in combination with the latest laboratory measurements on oscillations, provide ``decisive" Bayesian evidence for the normal neutrino mass hierarchy. We show that this…

High Energy Physics - Phenomenology · Physics 2022-09-14 Raul Jimenez , Carlos Pena-Garay , Kathleen Short , Fergus Simpson , Licia Verde

Assuming 3 neutrino mixing and massive Majorana neutrinos, we analyze the implications of the results of the solar neutrino experiments, including the latest SNO data, which favor the LMA MSW solution of the solar neutrino problem with…

High Energy Physics - Phenomenology · Physics 2010-04-05 S. Pascoli , S. T. Petcov

Neutrinoless double beta decay has been the subject of intensive theoretical work as it represents the only practical approach to discovering whether neutrinos are Majorana particles or not, and whether lepton number is a conserved quantum…

Nuclear Theory · Physics 2013-03-04 R. G. H. Robertson

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

Within the standard three-neutrino framework, the absolute neutrino masses and their ordering (either normal, NO, or inverted, IO) are currently unknown. However, the combination of current data coming from oscillation experiments,…

High Energy Physics - Phenomenology · Physics 2017-06-07 Francesco Capozzi , Eleonora Di Valentino , Eligio Lisi , Antonio Marrone , Alessandro Melchiorri , Antonio Palazzo

The observation of neutrinoless double beta decay will have important consequences. First it will signal that lepton number is not conserved and the neutrinos are Majorana particles. Second, it represents our best hope for determining the…

High Energy Physics - Phenomenology · Physics 2016-12-12 J. D. Vergados , H. Ejiri , F Šimkovic

We discuss to what extent future precision measurements of neutrino mixing observables will influence the information we can draw from a measurement of (or an improved limit on) neutrinoless double beta decay. Whereas the Delta m^2…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Choubey , W. Rodejohann

Various ways of determining the absolute neutrino masses are briefly reviewed and their sensitivities compared. The apparent tension between the announced but unconfirmed observation of the $0\nu\beta\beta$ decay and the neutrino mass upper…

High Energy Physics - Phenomenology · Physics 2008-11-26 Petr Vogel

We investigate numerically how accurately one could constrain the strengths of different short-range contributions to neutrino-less double beta decay in effective field theory. Depending on the outcome of near-future experiments yielding…

High Energy Physics - Phenomenology · Physics 2015-03-19 Johannes Bergstrom , Alexander Merle , Tommy Ohlsson

We investigate constraints on neutrino mass ordering and degeneracy by considering the first cosmological result based on Planck measurements of the cosmic microwave background. It is shown that the result at 95% CL rejects a neutrino mass…

High Energy Physics - Phenomenology · Physics 2015-06-15 Naoyuki Haba , Ryo Takahashi

We present an analysis of the global neutrino oscillation data in terms of four-neutrino mass schemes. We find that the strong preference of oscillations into active neutrinos implied by solar+KamLAND as well as atmospheric neutrino data…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Maltoni , T. Schwetz , M. A. Tortola , J. W. F. Valle

In the context of three-flavor neutrino mixing, we present a thorough study of the phenomenological constraints applicable to three observables sensitive to absolute neutrino masses: The effective neutrino mass in Tritium beta decay…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , A. Marrone , A. Melchiorri , A. Palazzo , P. Serra , J. Silk

We examine the constraints from the recent HEIDELBERG-MOSCOW double beta decay experiment. It leads us to the almost degenerate or inverse hierarchy neutrino mass scenario. In this scenario, we obtain possible upper bounds for the Majorana…

High Energy Physics - Phenomenology · Physics 2014-11-17 K. Matsuda , T. Kikuchi , T. Fukuyama , H. Nishiura

Most of what is known about neutrino masses and mixings results from studies of oscillation phenomena. We focus on those neutrino properties that are not amenable to such studies: $\Sigma $, the sum of the absolute values of the neutrino…

High Energy Physics - Phenomenology · Physics 2009-12-31 Sheldon L. Glashow

We examine how constraints can be placed on the neutrino component of dark matter by an accurate measurement of neutrinoless double beta ($0\nu\beta\beta$) decay and the solar oscillation amplitude. We comment on the alleged evidence for…

High Energy Physics - Phenomenology · Physics 2017-08-23 V. Barger , S. L. Glashow , D. Marfatia , K. Whisnant

The compelling experimental evidences for oscillations of solar and atmospheric neutrinos imply the existence of 3-neutrino mixing in vacuum. We briefly review the phenomenology of 3-neutrino mixing, and the current data on the 3-neutrino…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. T. Petcov

The predictions for the effective Majorana mass |<m>| in neutrinoless double-beta decay in the case of 3-neutrino mixing and massive Majorana neutrinos are reviewed. The physics potential of the experiments, searching for neutrinoless…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Pascoli , S. T. Petcov

The relation between neutrino oscillation parameters and neutrinoless double beta decay is studied, assuming normal and inverse hierarchies for Majorana neutrino masses. For normal hierarchy the crucial dependence on U_{e3} is explored. The…

High Energy Physics - Phenomenology · Physics 2009-11-07 D. Falcone , F. Tramontano

The first data released by the KamLAND collaboration have confirmed the strong evidence in favour of the LMA solution of the solar neutrino problem. Taking into account the ranges for the oscillation parameters allowed by the global…

High Energy Physics - Phenomenology · Physics 2009-11-10 F. R. Joaquim

In the light of latest data of neutrino oscillation experiments, we carry out a systematic investigation on the texture structures of Majorana neutrino mass matrix $M_{\nu}$, which contain one vanishing neutrino mass and an equality between…

High Energy Physics - Phenomenology · Physics 2017-11-08 Jinzhong Han , Ruihong Wang , Weijian Wang , Xing-Ning Wei