Linking scalar dark matter and neutrino masses with IceCube 170922A
Linking scalar dark matter and neutrino masses with IceCube 170922A
复制标题
使用 IceCube 170922A 连接标量暗物质和中微子质量
DOI:
10.1088/1475-7516/2019/07/041
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发表时间:
2019
影响因子:
6.4
通讯作者:
Alvey J
中科院分区:
文献类型:
--
作者:
Alvey J
Two of the key unresolved issues facing Standard Model physics are (i) the appearance of a small but non-zero neutrino mass, and,(ii) the missing mass problem in the Universe. The focus of this paper is a previously proposed low energy effective theory that couples a dark scalar to Standard Model neutrinos. This provides a stable dark matter candidate as well as radiatively generating a neutrino mass. Within this framework we will then construct an entirely new bound from the IceCube-170922A event which takes into account (i) the possible neutrino mass hierarchies,(ii) the effect of cosmological redshift on eg the number density of cosmic neutrino background neutrinos, and,(iii) the non-degeneracy of neutrino mass and flavour eigenstates. This builds on work by Kelly and Machado (2018), where the authors placed new constraints on neutrinophilic and axion dark matter models. At low mediator masses, we find an improvement of an order of magnitude on current constraints from kaon decays. The constraint is complimentary (and slightly weaker) than current constraints from Big Bang Nucleosynthesis and the Cosmic Microwave Background. We explore how future higher energy events could improve this bound.
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DOI:
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发表时间:
2010
期刊:
影响因子:
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作者:
Y. Farzan
通讯作者:
Y. Farzan
DOI:
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发表时间:
2011
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影响因子:
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Y. Farzan
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DOI:
--
发表时间:
2009
期刊:
影响因子:
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T. Collaboration