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The recent neutrino oscillation experimental results indicate that at least one neutrino has a mass greater than 50 meV. The next generation of double-beta decay experiments will very likely have a sensitivity to an effective Majorana…

核实验 · 物理学 2011-07-19 Steven R. Elliott

We suggest mass matrices for neutrinos and charged leptons that can explain solar and atmospheric neutrino data. The resulting flavor mixing matrix $V_{\nu}$ has a property that $(V_{\nu})_{13}=0$, thus making $\nu_e \leftrightarrow…

高能物理 - 唯象学 · 物理学 2009-10-30 Kyungsik Kang , Sin Kyu Kang , Jihn E. Kim , Pyungwon Ko

We explore the hypothesis that the unexplained data from LSND and MiniBooNE are evidence for a new, heavy neutrino mass-eigenstate that mixes with the muon-type neutrino and decays into an electron-type neutrino and a new, very light scalar…

高能物理 - 唯象学 · 物理学 2020-10-13 André de Gouvêa , O. L. G. Peres , Suprabh Prakash , G. V. Stenico

A very simple empirical neutrino mass formula is found, implying the mass proportion $m_1 : m_2 : m_3 = 1 : 4 : 24(1-\beta^2)$. For the value $\beta = (5-1)(5-3)/5^2 = 8/25$ the formula predicts precisely $\Delta m^2_{21} \sim 8.0\times…

高能物理 - 唯象学 · 物理学 2007-05-23 Wojciech Krolikowski

Oscillation experiments show that neutrinos have masses. They however only determine the neutrinop mass differences. Information on the absolute masses can be obtained by studying the kinematics in weak decays, or by searching for…

高能物理 - 实验 · 物理学 2007-05-23 Jean-Luc Vuilleumier

Assuming that neutrinos are spacelike (tachyonic) fermions, we calculate width for the kinematically allowed, lepton number conserving, three-body decay $\nu_{\alpha}\rightarrow \nu_{\alpha} \; \nu_{\beta} \bar{\nu}_{\beta}$ in the Standard…

高能物理 - 唯象学 · 物理学 2023-10-05 Jakub Rembielinski , Jacek Ciborowski

Future cosmological data may be sensitive to the effects of a finite sum of neutrino masses even as small as ~0.06 eV, the lower limit guaranteed by neutrino oscillation experiments. We show that a cosmological detection of neutrino mass at…

天体物理学 · 物理学 2008-11-26 Pasquale D. Serpico

The most stringent constraint on the so-called effective electron neutrino mass from the present neutrinoless double beta decay experiments is |M_{ee}| < 0.2 eV, while the planned next generation experiment GENIUS is anticipated to reach a…

高能物理 - 唯象学 · 物理学 2009-10-31 Anna Kalliomaki , Jukka Maalampi

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…

天体物理学 · 物理学 2009-11-07 G. G. Raffelt

Assuming Majorana neutrinos, we infer from oscillation data the expected values of the parameters m_{nu_e} and m_{ee} probed by beta and 0nu2beta-decay experiments. If neutrinos have a `normal hierarchy' we get the 90% CL ranges |m_{ee}| =…

高能物理 - 唯象学 · 物理学 2009-10-09 Ferruccio Feruglio , Alessandro Strumia , Francesco Vissani

The current experimental status of neutrino physics is reviewed. It contains the evidences for a non-vanishing neutrino rest mass from neutrino oscillation searches. In addition an outlook is given on determining the various mixing matrix…

高能物理 - 实验 · 物理学 2009-11-11 K. Zuber

We present a short discussion of the Neutrino-4 experimental results and the results of other experiments searching for the sterile neutrino. We estimated the contribution of the sterile neutrino with parameters $\Delta m^2_{14} =…

高能物理 - 唯象学 · 物理学 2023-02-15 A. P. Serebrov , R. M. Samoilov , M. E. Chaikovskii , O. M. Zherebtsov

There are three different methods used to search the neutrino mass: - The electron antineutrino mass can probably best be determined by the Triton decay. - The neutrinoless Double Beta Decay yields information, if the neutrino is a Dirac or…

核理论 · 物理学 2017-03-21 Amand Faessler

The next generation of double-beta decay experiments have an excellent chance of providing data on the neutrino mass pattern. This presentation is a summary of what is currently known about the mass pattern and expectations from experiment.…

核实验 · 物理学 2015-06-26 Steven R. Elliott

We present new limits on nu_e to nu_tau and nu_e to nu_sterile oscillations by searching for electron neutrino dissappearance in the high-energy wide-band CCFR neutrino beam. Sensitivity to nu_tau appearance comes from tau decay modes in…

高能物理 - 实验 · 物理学 2012-08-27 NuTeV Collaboration , D. Naples , A. Romosan

This paper proposes that the elusive neutrino is a space-like unitary irreducible representation of the Poincare Group. Although its imaginary mass is not a physical observable, its square is. This amount is found experimentally to be…

综合物理 · 物理学 2007-05-23 Jose N. Pecina-Cruz

Distortions of Cosmic Microwave Background (CMB) temperature and polarization maps caused by gravitational lensing, observable with high angular resolution and high sensitivity, can be used to measure the neutrino mass. Assuming two…

天体物理学 · 物理学 2010-04-22 Manoj Kaplinghat , Lloyd Knox , Yong-Seon Song

Theoretically, the electric charge of the tau neutrino may be non-zero. The experimental bound on the electric charge of the tau neutrino is many orders of magnitude weaker than that for any other known neutrino. If the tau neutrino does…

高能物理 - 唯象学 · 物理学 2009-10-22 R. Foot , H. Lew

After the successful measurement of the mixing angle $\theta_{13}$, the determination of the neutrino mass hierarchy has become a priority for future neutrino experiments. We propose a conventional $\nu_\mu$ beam with neutrino energies in…

高能物理 - 实验 · 物理学 2013-08-09 Jürgen Brunner

The shape of the beta decay energy distribution is sensitive to the mass of the electron neutrino. Attempts to measure the endpoint shape of tritium decay have so far seen no distortion from the zero-mass form, thus placing an upper limit…

核实验 · 物理学 2009-09-24 Benjamin Monreal , Joseph A. Formaggio