Reconstructing seesaws

doi:10.1140/epjc/s10052-011-1804-1

2011-11-18

Sacha Davidson *

Martin Elmer

DOI：10.1140/epjc/s10052-011-1804-1

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摘要

En 中文

We explore some aspects of reconstructing the heavy singlet sector of supersymmetric type I seesaw models, for two, three or four singlets. We work in the limit where one light neutrino is massless. In an ideal world, where selected coefficients of the TeV-scale effective Lagrangian could be measured with arbitrary accuracy, the two-singlet case can be reconstructed, two three or more singlets can be differentiated, and an inverse seesaw with four singlets can be reconstructed. In a more realistic world, we estimate l(alpha) --> l(beta gamma) expectations with a Minimal-Flavour-Violation-like ansatz, which gives a relation between ratios of the three branching ratios. The two-singlet model predicts a discrete set of ratios.

Keyword:

LEPTON-FLAVOR VIOLATION

NEUTRINO MASSES

SEE-SAW

YUKAWA COUPLINGS

CP VIOLATION

DARK-MATTER

SUPERSYMMETRY

LEPTOGENESIS

PHYSICS

MODEL

AI总结

对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。

期刊

European Physical Journal C

IF:

4.8

论文数:

1.8W

被引数:

4.7W

机构

Universite Claude Bernard Lyon 1

学者数:

2.4W

论文数: 1.7W

被引数: 156

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