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arXiv 0710.1102hep-ph
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重子数的乘法守恒与重子发生

Multiplicative Conservation of Baryon Number and Baryogenesis

Ernest Ma

摘要:

在中微子质量的正则跷跷板机制中,轻子数只保持乘法守恒,这使得轻子生成这一重要现象得以发生,成为对宇宙重子不对称性的一个有吸引力的解释。重子数和重子生成也有类似的可能性,但迄今尚未认识到。这个新的想法被证明是自然实现的背景下,一个已知的超对称弦启发的标准模型的扩展,基于E(6)粒子的内容,并具有额外的U(1)_N规范对称性。在这个框架内,双圈辐射中微子质量也是可能的,同时还有一种新形式的非常长寿命的物质。

英文摘要:

In the canonical seesaw mechanism of neutrino mass, lepton number is only multiplicatively conserved, which enables the important phenomenon of leptogenesis to occur, as an attractive explanation of the present baryon asymmetry of the Universe. A parallel possibility, hitherto unrecognized, also holds for baryon number and baryogenesis. This new idea is shown to be naturally realized in the context of a known supersymmetric string-inspired extension of the Standard Model, based on E(6) particle content, and having an extra U(1)_N gauge symmetry. Within this framework, two-loop radiative neutrino masses are also possible, together with a new form of very long-lived matter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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