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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

We investigate what could be learned about the absolute scale of neutrino masses from comparisons among the patterns within quark and lepton mass hierarchies. First, we observe that the existing information on neutrino masses fits quite…

高能物理 - 唯象学 · 物理学 2009-11-07 Manfred Lindner , Walter Winter

We present a new method to measure neutrino masses using the dark matter-neutrino relative velocity. The relative motion between dark matter and neutrinos results in a parity-odd bispectrum which can be measured from cross-correlation of…

宇宙学与河外天体物理 · 物理学 2020-02-18 Hong-Ming Zhu , Emanuele Castorina

Neutrino masses and mixings are investigated on the basis of a universal seesaw mass matrix model, in which quark (except for top) and charged lepton mass matrices M_f and neutrino mass matrix M_\nu are given by M_f \simeq m_L M_F^{-1} m_R…

高能物理 - 唯象学 · 物理学 2009-10-30 Yoshio Koide

With a mass at least six orders of magnitudes smaller than the mass of an electron -- but non-zero -- neutrinos are a clear misfit in the Standard Model of Particle Physics. On the one hand, its tiny mass makes the neutrino one of the most…

核实验 · 物理学 2016-06-22 Susanne Mertens

A high-statistics measurement of the neutrinos from a galactic core-collapse supernova is extremely important for understanding the explosion mechanism, and studying the intrinsic properties of neutrinos themselves. In this paper, we…

高能物理 - 唯象学 · 物理学 2015-05-28 Jia-Shu Lu , Jun Cao , Yu-Feng Li , Shun Zhou

We study the origin of neutrino mass through lepton-number violation and spontaneous $U(1)_{L_\mu-L_\tau}$ symmetry breaking. To accomplish the purpose, we include one Higgs triplet, two singlet scalars, and two vector-like doublet leptons…

高能物理 - 唯象学 · 物理学 2019-02-05 Chuan-Hung Chen , Takaaki Nomura

Measuring the total neutrino mass is one of the most exciting opportunities available with next-generation cosmological data sets. We study the possibility of detecting the total neutrino mass using large-scale clustering in 21cm intensity…

宇宙学与河外天体物理 · 物理学 2022-01-19 Mario Ballardini , Roy Maartens

Neutrino masses are yet unknown. We discuss the present state of effective electron anti-neutrino mass from $\beta$ decay experiments; effective Majorana neutrino mass from neutrinoless double-beta decay experiments; neutrino mass squared…

高能物理 - 实验 · 物理学 2023-10-31 Jyotsna Singh , M. Ibrahim Mirza

Compelling evidences in favor of neutrino masses and mixing obtained in the last years in Super-Kamiokande, SNO, KamLAND and other neutrino experiments made the physics of massive and mixed neutrinos a frontier field of research in particle…

高能物理 - 唯象学 · 物理学 2008-11-26 S. M. Bilenky , C. Giunti , J. A. Grifols , E. Masso

The properties of neutrinos and especially their rest mass play an important role at the intersections of cosmology, particle physics and astroparticle physics. At present there are two complementary approaches to address this topic in…

高能物理 - 实验 · 物理学 2019-08-13 Thomas Thümmler

Based on a new approach (the so-called Yukawaon model) to the mass spectra and mixings, a neutrino mass matrix which is described in terms of the up-quark masses and CKM matrix parameters is proposed. The mass matrix successfully leads to a…

高能物理 - 唯象学 · 物理学 2009-08-20 Yoshio Koide

The main aspects of the phenomenology of absolute neutrino masses are reviewed, focusing on the limits on neutrino masses obtained in tritium beta decay experiments, cosmological observations and neutrinoless double-beta decay experiments.

高能物理 - 唯象学 · 物理学 2007-05-23 Carlo Giunti

We compute the cross section for neutrino-photon scattering taking into account a neutrino mass. We explore the possibility of using intense neutrino beams, such as those available at proposed muon colliders, together with high powered…

高能物理 - 唯象学 · 物理学 2009-10-31 Duane A. Dicus , Wayne W. Repko , Roberto Vega

The beta decay of molecular tritium currently provides the highest sensitivity in laboratory-based neutrino mass measurements. The upcoming Karlsruhe Tritium Neutrino (KATRIN) experiment will improve the sensitivity to 0.2 eV, making a…

核实验 · 物理学 2015-06-23 L. I. Bodine , D. S. Parno , R. G. H. Robertson

The physics responsible for neutrino mass may reside at or below the TeV energy scale. The neutrino mass matrix in the $(\nu_e, \nu_\mu, \nu_\tau)$ basis may then be deduced from future high-energy accelerator experiments. The newly…

高能物理 - 唯象学 · 物理学 2015-06-25 Ernest Ma

We thoroughly explore the cosmic gravitational focusing of cosmic neutrino fluid (C$\nu$F) by dark matter (DM) halo using both general relativity for a point source of gravitational potential and Boltzmann equations for continuous…

高能物理 - 唯象学 · 物理学 2024-07-08 Shao-Feng Ge , Pedro Pasquini , Liang Tan

The KArlsruhe TRItium Neutrino (KATRIN) experiment is a next generation, model independent, large scale experiment to determine the neutrino mass by investigating the kinematics of tritium beta-decay with a sensitivity of 200 meV/c2. The…

仪器与探测器 · 物理学 2011-10-04 F. M. Fraenkle

This paper presents experimental requirements to determine the neutrino mass hierarchy using reactor neutrinos. The detector shall be located at a baseline around 58 km from the reactor(s) to measure the energy spectrum of electron…

高能物理 - 实验 · 物理学 2009-11-06 Liang Zhan , Yifang Wang , Jun Cao , Liangjian Wen

Two most outstanding questions are puzzling the world of neutrino Physics: the possible Majorana nature of neutrinos and their absolute mass scale. Direct neutrino mass measurements and neutrinoless double beta decay (0nuDBD) are the…

高能物理 - 实验 · 物理学 2010-02-09 Oliviero Cremonesi