arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1303.4887hep-ph
收藏

广义逆跷跷板

Generalized Inverse Seesaws

Sandy S. C. Law, Kristian L. McDonald

摘要:

跷跷板机制可以推广到III型变体和五联体变体。我们提出了两个模型,提供了类似的反跷跷板机制的推广。第一个模型采用费米子三重态F ~(1,3,0),相对于标准的反跷跷板模型,不需要额外的多重态或参数。我们认为,从自下而上的角度来看,似乎没有特别的理由偏好通常的情况下,这个变量。第二个模型采用费米子五重态F ~(1,5,0)并需要额外的标量S ~(1,4,1)。我们还表明,最小的逆跷跷板,甚至更大的费米子表示预计不会实现自然小中微子质量。

英文摘要:

The seesaw mechanism can be generalized to a Type-III variant and a quintuplet variant. We present two models that provide analogous generalizations of the inverse seesaw mechanism. The first model employs a fermion triplet F ~ (1,3,0) and requires no additional multiplets or parameters relative to the standard inverse seesaw. We argue that, from a bottom-up perspective, there appears to be no particular reason to preference the usual scenario over this variant. The second model employs a fermion quintuplet F ~ (1,5,0) and requires an additional scalar S ~ (1,4,1). We also show that minimal inverse seesaws with even larger fermionic representations are not expected to realize naturally small neutrino masses.

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。

↑