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arXiv 1506.04096hep-ph
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重类矢量中微子的凝聚态

Condensed state of heavy vectorlike neutrinos

M. B. Voloshin

摘要:

标准模型的某些扩展表明,存在着类矢量费米子,其质量$M$可以比电弱标度$v$大几个数量级,并且希格斯机制只提供了这个质量的一小部分$m$,这是$v$的一小部分。结果表明,在一定的$m$和$M$参数范围内,存在由数密度远大于$m_h \, v^2$的中性类矢量轻子(超重中微子)中的轻轻子构成的稳定的简并费米子物质球,其中$m_h$为希格斯玻色子的质量.这种稳定性是由于小球内部的希格斯场变形到大大超过$v$的值。如果较轻的类矢量中微子是稳定的,并且可以成为暗物质的一部分,那么小球是绝对稳定的。

英文摘要:

Some extensions of the Standard Model suggest existence of vectorlike fermions whose mass $M$ can be by up to several orders of magnitude larger than the electroweak scale $v$, and with the Higgs mechanism providing only a small part $m$ of this mass that is a fraction of $v$. It is shown that in a certain range of the parameters $m$ and $M$ there exist stable globules of degenerate fermionic matter made from the lighter of the neutral vectorlike leptons (superheavy neutrinos) with a number density much larger than $m_h \, v^2$, with $m_h$ being the Higgs boson mass. The stability is due to the deformation of the Higgs field inside the globule to values greatly exceeding $v$. The globules are absolutely stable if the lighter of the vectorlike neutrinos is stable and can be (a part of) the dark 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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