Departure from Weinberg-Salem Model and Grand Unification

机译：从温伯格 - 塞勒姆模型和大统一出发

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The spontaneous symmetry breakdown of Grand Unified Groups like SO(10) can lead to an extra U(1) group beyond the SU(2) x U(1) of Weinberg-Salam. The neutral current data in such models could depend on three new parameters beyond the two in the standard model. However, grand unification imposes restriction on coupling constants limiting the analysis to two new parameters. Further, only one new parameter occurs in neutrino-scattering data. More accurate data can thus be used in the future to set limits on these parameters. The present data when used with the more general parametrization no longer determines the value of sin exp 2 theta/sub w/ as accurately. This leads to a greater uncertainty in the estimate of the proton lifetime. (ERA citation 06:013098)

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作者
Deshpande, N. G.;
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年度 1980
页码 1-14
总页数 14
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Unified gauge models ; Weinberg-salam gauge model ; Neutral currents ; So groups ; Su-2 groups ; Symmetry breaking ; Theoretical data ; U-1 groups;

机译：统一的仪表模型; Weinberg-salam仪表模型;中性电流; so组; su-2组;对称性破坏;理论数据; U-1组;

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1. THE CONSTANTS OF THE STANDARD MODEL AND THE POSSIBLE REDUCTION IN THEIR NUMBER ON CHANGING TO GRAND UNIFICATION MODELS [J] . S. A. Kononogov, V. N. Melnikov, V. V. Khrushchev Measurement techniques . 2007,第3期

机译：标准模型的常数及其在变更为大统一模型时的数目的可能减少
2. Beyond Standard Models and Grand Unifications: anomalies, topological terms, and dynamical constraints via cobordisms [J] . Zheyan Wan, Juven Wang The journal of high energy physics . 2020,第7期

机译：超越标准模型和大统一：经由努侦查中的异常，拓扑术语和动态约束
3. Towards realistic SUSY grand unification for extended MSSM models [J] . Sibo Zheng Physical review, D . 2019,第7aPta2期

机译：迈向延长MSSM模型的现实苏斯大统一
4. Grand Unification and Low Scale Implications: D_2 Parity for Unification and Neutrino Masses [C] . Zurab Tavartkiladze CETUP* . 2014

机译：大统一和低规模含义：统一和中微子群体的D_2平价
5. Gravitational effects in models of grand unification. [D] . Reeb, David. 2010

机译：大统一模型中的引力效应。
6. Chandra’s First Decade of Discovery Special Feature: Grand unification of neutron stars [O] . Victoria M. Kaspi 2010

机译：钱德拉发现的第一个十年特别报道：中子星的统一
7. Trends in Grand Unification: unification at strong coupling and composite models [O] . Rubakov, V. A., Troitsky, S. V. 2000

机译：大统一的趋势：强联合和统一的统一复合模型

Departure from Weinberg-Salem Model and Grand Unification

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