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arXiv 1002.1754hep-phastro-ph.COhep-exhep-th
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作为局域规范对称性的重子数和轻子数

Baryon and Lepton Number as Local Gauge Symmetries

Pavel Fileviez Perez, Mark B. Wise

摘要:

本文研究一个简单的理论,其中重子数(B)和轻子数(L)是局域规范对称性。在这个理论中,B和L处于同一基础上,通过增加一个新的费米子代来消除异常。中微子质量的跷跷板机制有一个有趣的认识。此外,有一个自然的抑制味违反夸克和轻子部门,因为规范对称性和粒子的内容禁止树级味改变中性流涉及夸克或带电轻子。人们还发现,暗物质候选者的稳定性是规范对称性的自动结果。简要讨论了大型强子对撞机上的一些约束和信号。

英文摘要:

We investigate a simple theory where Baryon number (B) and Lepton number (L) are local gauge symmetries. In this theory B and L are on the same footing and the anomalies are cancelled by adding a single new fermionic generation. There is an interesting realization of the seesaw mechanism for neutrino masses. Furthermore, there is a natural suppression of flavour violation in the quark and leptonic sectors since the gauge symmetries and particle content forbid tree level flavor changing neutral currents involving the quarks or charged leptons. Also one finds that the stability of a dark matter candidate is an automatic consequence of the gauge symmetry. Some constraints and signals at the Large Hadron Collider are briefly discussed.

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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