Status of Neutrino Masses and Mixing in 2009

关于中微子混合和振荡的现状

On the status of neutrino mixing and oscillations

本文讨论了在太阳和大气中微子实验中得到的有利于中微子振荡的证据。本文在三个大质量中微子混合的最小方案框架下，研究了太阳和大气中微子质量平方差范围内的中微子振荡。

三最大中微子混合的现状

Status of Trimaximal Neutrino Mixing

三极大混合是具有极大对称性的混合假设。在三重混合中，大气拟合（可能得到早期K2 K数据的支持）所偏好的大$Δm^2$值与反应堆对$ν_e$ -混合的限制之间仍然存在令人担忧的冲突。然而，最新的太阳能结果似乎确实指向能源独立（即。“无标度”）太阳解，如三极大解。

中微子质量和混合的现状

Status of Neutrino Masses and Mixing

简要回顾了有利于太阳中微子和大气中微子振荡的实验证据，并将其纳入三中微子混合的框架。中微子质量的值的影响进行了讨论，并从氚β衰变和宇宙学数据的中微子质量的绝对规模的界限进行了审查。最后，我们讨论了三中微子混合对无中微子双β衰变的影响。

混合与CP破坏：现状与展望

Mixing and CP Violation: Status and Prospects

利用么正三角形对K介子和B介子的混合和CP破坏的研究现状作了简要的综述。ε ′/ε ′的理论预测与实验结果相矛盾。讨论了在高能p pbar、p p、e- e+和mu- mu+对撞机上探测顶夸克和/或重标量共振散射中的CP破坏的前景。后者的重子发生的相关性进行了简要概述。

$\bar{B}-B$ -混合的理论地位与重强子寿命

The Theoretical status of $\bar{B}-B$-mixing and lifetimes of heavy hadrons

在这次演讲中，我们回顾了重强子的寿命比和B-混合量$ΔM_s$，$ΔΓ_s$和$ϕ_s$的理论状态。虽然$ΔM_s$和$ΔΓ_s$的衰变常数已知得很差，存在很大的不确定性，但比值$ΔΓ_s / ΔM_s$几乎没有非微扰不确定性，因此可以用来寻找可能的新物理效应。

$D^0\bar{D}^0$混合搜索--现状与展望

The $D^0\bar{D}^0$ Mixing Search --- Current Status and Future Prospects

由于标准模型中的$D^0\bar{D}^0$混合率预计非常小，因此对$D^0\bar{D}^0$混合的研究具有很大的发现新物理的潜力。在过去的十年中，灵敏度的实验取得了重大进展，从20%下降到0.37%。本文讨论了混合搜索的技术，目前的实验状况，和未来的展望。一些新的想法，适用于未来的混合搜索，介绍。其中一个新的想法是使用单一Cabibbo抑制衰变（SCSD），如$D^0 \to K+K-, π^+π^-$，来研究混合。后记版本将很快通过万维网http://w4.lns.cornell.edu/public/TALK/1994提供。

中微子质量的实验和天体物理状况

Experimental and Astrophysical Status of Neutrino Masses

本文综述了中微子质量的实验和天体物理学研究现状，重点介绍了中微子质量在宇宙学中的重要地位。

$b$-强子寿命与中性$B$介子混合：理论与实验现状

Lifetimes of $b$-hadrons and mixing of neutral $B$-mesons: theoretical and experimental status

本文综述了$B$混合和$b$-强子寿命的实验与理论现状，探讨了其在QCD研究和超越标准模型搜索中的潜力，并提供了更新的SM预测。

On the Status of Three-Neutrino Mixing

All existing solar and atmospheric neutrino oscillation data are described by the standard two-neutrino formulas with neutrino mass squared differences that satisfy the hierarchy relation $Δm^{2}_{sol} \ll Δm^{2}_{atm}$. We discuss this phenomenon from the point of view of three-neutrino mixing. Possibilities to see effects of three-neutrino mixing and, in particular, effects of CP-violation in the lepton sector depend on the values of $|U_{e3}|^2 $ and $Δm^{2}_{sol}$. We present an upper bound of $|U_{e3}|^2 $, which was obtained from a three-neutrino analysis of CHOOZ data in the case if the…

Status of Precision Extractions of $α_s$ and Heavy Quark Masses

An overview of precision determinations of the strong coupling constant, as well as the top, bottom and charm quark masses is presented.

Status of Neutrino Mass and Mixing

In the last two decades experiments have established the existence of neutrino oscillations and most of the related parameters have by now been measured with reasonable accuracy. These results have accomplished a major progress for particle physics and cosmology. At present neutrino physics is a most vital domain of particle physics and cosmology and the existing open questions are of crucial importance. We review the present status of the subject, the main lessons that we have learnt so far and discuss the great challenges that remain in this field.

Neutrino oscillations: from an historical perspective to the present status

The history of neutrino mixing and oscillations is briefly presented. Basics of neutrino mixing and oscillations and convenient formalism of neutrino oscillations in vacuum is given. The role of neutrino in the Standard Model and the Weinberg mechanism of the generation of the Majorana neutrino masses are discussed.

Status and prospects of `bi-large' leptonic mixing

Bi-large patterns for the leptonic mixing matrix are confronted with current neutrino oscillation data. We analyse the status of these patterns and determine, through realistic simulations, the potential of upcoming long-baseline experiment DUNE in testing bi-large \emph{ansatze} and discriminating amongst them.

Neutrino oscillations: brief history and present status

A brief review of the problem of neutrino masses and oscillations is given. In the beginning we present an early history of neutrino masses, mixing and oscillations. Then we discuss all possibilities of neutrino masses and mixing (neutrino mass terms). The phenomenology of neutrino oscillations in vacuum is considered in some details. We present also the neutrino oscillation data and the seesaw mechanism of the neutrino mass generation.

Status and implications of neutrino masses: a brief panorama

With the historic discovery of the Higgs boson our picture of particle physics would have been complete were it not for the neutrino sector and cosmology. I briefly discuss the role of neutrino masses and mixing upon gauge coupling unification, electroweak breaking and the flavor sector. Time is ripe for new discoveries such as leptonic CP violation, charged lepton flavor violation and neutrinoless double beta decay. Neutrinos could also play a role in elucidating the nature of dark matter and cosmic inflation.

B介子衰变和混合的晶格计算现状

Status of lattice calculations of B-meson decays and mixing

本文评述了格点计算f_B、B_B和SU（3）味破坏比f_B/f_B的现状。特别注意的是系统的不确定性，如所产生的缺乏模拟数据的动力学夸克与现实的质量，以及相关的困难与手征外推。给出了衰变常数和混合参数的全球平均值（表1），并详细讨论了获得它们的程序。

三/双最大中微子混合的现状

Status of Tri/Bi-Maximal Neutrino Mixing

三/双最大混合（Tri/bi-maximum mixing，TBM）是一种特殊的轻子混合模型，它描述了当前中微子振荡数据的趋势，特别是最近的SNO和KAMLAND结果。在这方面，TBM的显著特征是|U_e2| ^2= |U_m2| ^2= |U_t2| ^2=1/3，我们说nu_2是三极大混合的。我们将TBM的近似推广到nu_2三重混合的一般混合矩阵，由此中微子质量矩阵在轻子味基中采用一般S3群矩阵（3 × 3“幻方”）的形式。在精确的全弹道模型中，中微子质量基中的带电轻子质量矩阵（其中中微子质量矩阵是对角的）采用一般的S3类算符的形式。味基中的中微子质量矩阵是一个特殊的S3群矩阵，它也是一个S1 CS2 CS3群-链类算符，由此中微子质量本征态通过它们的“突变性”（M_i = +/-1）和“民主性”（D_i = 0，3）来区分，这两个都是精确TBM中的好量子数。

中微子质量和混合矩阵与SU（1，1）水平对称性

Neutrino Masses and Mixing Matrix from SU(1,1) Horizontal Symmetry

提出了一种新的机制来解释中微子质量及其混合通过SU（1，1）水平对称性破缺。基于这一机制，自然地实现了中微子质量的小化，并给出了大混合的反分级谱。

矢量介子质量和混合的电磁贡献

Electromagnetic Contributions to Vector Meson Masses and Mixings

我们用1/N_c方法估计了电磁场对矢量介子质量和混合的贡献。我们确定了几个新的来源的ρ-ω混合来自短距离效应。本文评述了从矢量介子质量中提取夸克质量的方法。我们还提出了一个简单的电磁质量差的群论讨论。

Models for Neutrino Masses and Mixings

We review recent developments towards models for neutrino masses and mixings.

中微子质量和混合

Neutrino masses and mixings

我们提出了一个新的中微子质量和混合的理论理解，这是由于在短距离的正则化标准模型的内在矢量的功能。我们试图解释狄拉克中微子质量的微小性和右手中微子作为自由粒子的退耦现象。中微子质量和混合角在Schwinger-Dyson方程中的自能函数是完全相关的。这些方程的解决方案和可能的模式的质量和混合进行了讨论。

Fermion masses and mixing in modular A4 Symmetry

We consider a flavor model based on A4 modular group to account for both lepton and quark parameters (masses and mixing). The inverse seesaw mechanism is considered to produce the light neutrino masses. Lepton masses and mixing are obtained in terms of Yukawa coupling ratios and values of the modulus τ nearby some fixed points for inverted neutrino mass hierarchy. The quark masses and mixing are arisen at the same τ values used in inverted neutrino mass hierarchy and are in agreements with the recent data.

中微子质量和混合

Neutrino Masses and Mixing

评述了中微子质量和轻子混合的限制条件。太阳、大气和遗迹中微子给出了中微子质量不为零和混合存在的迹象。数据拾取混合角的两个区域，其明显大于或明显小于Cabibbo角。讨论了具有{ \it大}或{ \it小}轻子混合的一些理论方案。

中微子质量和混合模型

Models of Neutrino Masses and Mixings

我们提出了一个简明的评论模型建设的中微子质量和混合，特别强调最近的发展。

What are the neutrino masses. Mixing

The possible mechanisms of generation of the neutrino of small masses and sterile neutrino are considered. In the supposition of stability of tracks of a left-right symmetry concerning masses of constituent quarks, the angles of mixing of quarks are evaluated. With usage of experimental data on neutrino oscillation parameters the neutrino masses on order of magnitude are computed.

Vcb的实验测定现状

Present Status of experimental determination of Vcb

我们的知识的夸克混合参数Vcb的大小的现状进行了审查，特别强调的影响实验和理论误差的因素和前景更精确的测定。

Flavor Mixing and Neutrino Masses

We discuss mass matrices with four texture zeros for the quarks and leptons. The three mixing angles for the quarks and leptons are functions of the fermion masses. The results agree with the experimental data. The ratio of the masses of the first two neutrinos is given by the solar mixing angle. The neutrino masses are calculated: $m_1$ $\approx$ 0.004 eV, $m_2$ $\approx$ 0.010 eV, $m_3$ $\approx$ 0.070 eV.

轻夸克质量和混合角

Light Quark Masses and Mixing Angles

本文综述了u，d，s夸克的质量和弱混合元的研究现状。这是1993年理论高级研究所（TASI）讲座的书面版本。

中微子质量和混合

Neutrino masses and mixing

对中微子质量和混合问题的现状作了简要的评述。不同计划的混合（狄拉克或马约拉纳）大量中微子被认为是。本文介绍了真空和物质中中微子振荡的理论。现有的迹象有利于中微子混合进行了简短的讨论。

中微子质量和混合的最新模型

Recent Models of Neutrino Masses and Mixing

在这次演讲中，我回顾了最近关于中微子质量和混合的一些模型。特别地，我强调了$A_4$对称模型。

谈费米子质量与混合

Talk on fermion masses and mixings

本文涉及两个主题。第一部分讨论了夸克质量矩阵与规范理论中可观测量之间的关系。第二部分在跷跷板框架下研究中微子的质量和混合。

中微子质量和混合：理论观点

Neutrino Masses and Mixings: a Theoretical Perspective

本文简要回顾了最近由Superkamiokande实验证实的中微子振荡所引起的中微子质量和混合的研究活动。

规范理论中中微子质量和混合的产生

Generation of Neutrino Masses and Mixings in Gauge Theories

我回顾模型，目前大味混合的轻子部门的基础上规范理论。

Note about lepton masses and mixings in two Ansatze

We consider two Ansatze for the neutrino masses and mixings in which the permutation symmetry is implemented in various orders. We discuss the possible see-saw mechanisms and the charged lepton masses for the two cases in the presence of a Higgs triplet and three Higgs doublets.

中微子质量和混合模型的研究进展

Progress on Models of Neutrino Masses and Mixings

我们回顾了最近的一些结果，我们的小组的中微子质量和混合模型的一般背景下的超对称大统一理论与相关的味道对称。

33.9 MeV/c ^2等单线态中微子的实验室约束：现状与展望

Laboratory Constraints on a 33.9 MeV/c^2 Isosinglet Neutrino: Status and Perspectives

卡门合作组观测到的信号时间行为的异常可以解释为33.9 MeV/c $^2$主要是无菌中微子的可能衰变特征。本文讨论了这个假设粒子与已知轻子味中微子混合的参数空间，考虑到最近获得的实验结果，以及从即将到来的测量中预期的结果。它的结论是，如果没有积极的签名被观察到，设想的实验室实验预计不会封闭的参数空间的混合振幅。然而，对$ν_τ$中微子质量的ALEPH上限（包括$τ$味道混合的可能性）进行适当的重新评估，肯定会有助于减少留下的参数空间。

费米子质量预测理论中的中微子质量和混合

Neutrino masses and mixings in a predictive theory of fermion masses

超对称大统一理论中预测带电费米子质量的框架被扩展到中微子领域。提出了八个新的预言，并讨论了它们与中微子振荡实验和太阳中微子问题的关系。

Quark mixing angles vs quark masses: potential approach

It is shown that phenomenologically favorable expressions of quark mixing angles through the ratios of current quark masses may be derived as stable points of certain 4-th power in CKM matrix flavor-invariant potentials built with traces of 3x3 quark up and down mass matrices.

An analytical treatment of the neutrino masses and mixings

We obtain analytical formulas which connect the neutrino masses and the leptonic mixing matrix with the entries in the mass matrix for the approximation in which the charged lepton mixing matrix is the unit matrix. We also extract the CP violation phase and determine the conditions in which this is present.

Flavor Mixing, Quark Masses, Neutrino Masses and Neutrino Oscillations

We discuss first the flavor mixing of the quarks, using the texture zero mass matrices. Then we study a similar model for the mass matrices of the leptons. We are able to relate the mass eigenvalues of the charged leptons and of the neutrinos to the mixing angles and can predict the masses of the neutrinos. We find a normal hierarchy - the masses are 0.004 eV, 0.01 eV and 0.05 eV. The atmospheric mixing angle is given by the mass ratios of the charged leptons and the neutrinos. we find about 40 degrees, consistent with the experiments. The mixing element, connecting the first neutrino wit the …

Neutrino Masses and Flavor Mixing

We discuss the neutrino oscillations, using texture zero mass matrices for the leptons. The reactor mixing angle $θ^{}_{l}$ is calculated. The ratio of the masses of two neutrinos is determined by the solar mixing angle. We can calculate the masses of the three neutrinos: $m_1$ $\approx$ 0.003 eV - $m_2$ $\approx$ 0.012 eV - $m_3$ $\approx$ 0.048 eV.

轻夸克质量：DPF 2000年的现状报告

Light quark masses: a status report at DPF 2000

本文综述了QCD求和规则和格点量子色动力学模拟中轻夸克质量的提取。重点是仔细说明每个计算中的潜在弱点，并整合不同合作的工作，以提供一个连贯的画面。

Fermion Masses and Flavor Mixings from SU(3) Family Symmetry

This paper has been withdrawn by the author. A revised version has been resubmitted to the archive.

中微子质量和混合理论

Neutrino Masses and Mixing - Theory

在这次演讲中，我回顾了我们所知道的和不知道的关于中微子，中微子质量和轻子混合。我还讨论了中微子具有非零质量这一发现的重要性，并说明了目前对它们背后的物理学知之甚少。

Neutrino Masses and Mixing: A Little History for a Lot of Fun

In this talk I present my personal summary of the progress on the determination of the masses of the neutrinos and of the leptonic flavour mixing from the combined analysis of the experimental results.

中微子质量和混合理论

Theories of Neutrino Masses and Mixings

本文综述了中微子质量及其对标准模型以外物理学的影响。

中微子质量和混合模型进展报告

Models of Neutrino Masses and Mixings: a Progress Report

本文介绍了中微子质量和混合模型建立的一些最新进展。特别是，我们审查来自离散群，特别是A4的三双峰中微子混合。我们讨论了将对称性扩展到夸克扇区和大统一所遇到的问题。

大统一SO（10）模型中中微子的质量和混合

Masses and mixing of neutrinos in grand unified SO(10) model

本文提出了一个基于SO（10）和超对称性的大统一模型来解释实验中观测到的中微子的质量和混合。

中微子质量和混合：我们的立场和方向

Neutrino Masses and Mixing: Where We Stand and Where We are Going

在这次演讲中，我回顾了我们目前对中微子质量和混合的认识，以及对不久的将来实验的期望。

Deviations from Tribimaximal and Golden Ratio mixings under radiative corrections of neutrino masses and mixings

The impact of renormalization group equations(RGEs) on neutrino masses and mixings at high energy scales in Minimal Supersymmetric Standard Model(MSSM) is studied using two different mixing patterns such as Tri-Bimaximal(TBM) mixing and Golden Ratio(GR) mixing in consistent with cosmological bound of the sum of three neutrino masses, $\sum _{i}|m_{i}|$. Magnifications of neutrino masses and mixing angles at low energy scale, are obtained by giving proper input masses, and mixing angles from TBM mixing matrix and GR mixing matrix at high energy scales. High energy scales, $M_{R}$ such as $10^{1…

Fermion Masses and Mixings in a Minnimal SO(10)xA_A SUSY GUT

This paper has been withdrawn by the author, due to two identical copies of the paper.

味对称性、中微子质量和中微子混合

Flavor Symmetries, Neutrino Masses and Neutrino Mixing

我们讨论中微子混合，使用纹理0质量矩阵，这对夸克非常有效。太阳混合角与前两个中微子的质量比直接相关。中微子的质量是分等级的，但质量比夸克小得多。大气混合角为38 $^{\circ}$。轻子的CP破坏应该比夸克小得多。

中微子的质量和混合与夸克的质量和混合密切相关吗？

Are the neutrino masses and mixings closely related to the masses and mixings of quarks?

夸克的质量矩阵如果用小参数σ=（m_c/m_t）^{1/2}的幂来表示，则具有简单的结构。如果夸克和轻子之间有密切的关系，那么对于包含相同参数的轻子矩阵，人们会期望有相似的结构。有一个具体的建议，跷跷板机制一起使用的严格要求，单态中微子携带非零代电荷。这些电荷决定了相应的重中微子质量矩阵中σ的幂。结果表明，中微子混合矩阵是双峰型的。此外，两个最轻的中微子的质量分裂被发现是微小的，并且正好是太阳中微子真空解所必需的正确大小。

ICTP中微子质量和混合理论讲座

ICTP Lectures on Theoretical Aspects of Neutrino Masses and Mixings

最近的中微子振荡实验正在产生关于中微子质量和混合性质的有价值的信息，尽管我们对它们所隐含的新物理学还远没有完全理解。在这些讲座中，我总结了中微子质量物理学的当前理论状况。