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arXiv 2001.03862hep-phhep-th
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$B-L$对称破缺引起的非对称物质

Asymmetric matter from $B-L$ symmetry breaking

Phung Van Dong, Duong Van Loi

摘要:

我们宇宙中目前的物质含量可能受$U(1)_{B-L}$对称性的支配--这是产生小中微子质量的跷跷板机制的最简单的规范完备。物质宇称的结果是剩余的规范对称性,这意味着暗物质是稳定的。打破$B-L$电荷的希格斯场成功地使早期宇宙膨胀,然后衰变为右手中微子,这重新加热了宇宙,并明显地产生了正常物质和暗物质。

英文摘要:

The present matter content of our universe may be governed by a $U(1)_{B-L}$ symmetry -- the simplest gauge completion of the seesaw mechanism which produces small neutrino masses. The matter parity results as a residual gauge symmetry, implying dark matter stability. The Higgs field that breaks the $B-L$ charge inflates the early universe successfully and then decays to right-handed neutrinos, which reheats the universe and generates both normal matter and dark matter manifestly.

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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