Effect of interaction with neutrons in matter on flavor conversion of super-light sterile neutrino with active neutrino

doi:10.1007/JHEP06(2014)069

	Effect of interaction with neutrons in matter on flavor conversion of super-light sterile neutrino with active neutrino
	Liao, Wei; Luo, Yuchen; Wu, Xiao-Hong
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2014-06-11
关键词	Beyond Standard Model Neutrino Physics
ISSN号	1029-8479
DOI	10.1007/JHEP06(2014)069
文献子类	Article
英文摘要	A super-light sterile neutrino was proposed to explain the absence of the expected upturn of the survival probability of low energy solar boron neutrinos. This is because this super-light sterile neutrino can oscillate efficiently with electron neutrino through a MSW resonance happened in Sun. One may naturally expect that a similar resonance should happen for neutrinos propagating in Earth matter. We study the flavor conversion of this super-light sterile neutrino with active neutrinos in Earth matter. We find that the scenario of the super-light sterile neutrino can easily pass through possible constraints from experiments which can test the Earth matter effect in oscillation of neutrinos. Interestinlgy, we find that this is because the naively expected resonant conversion disappears or is significantly suppressed due to the presence of a potential V-n which arises from neutral current interaction of neutrino with neutrons in matter. In contrast, the neutron number density in the Sun is negligible and the effect of V-n is effectively switched off. This enables the MSW resonance in Sun needed in oscillation of the super-light sterile neutrino with solar electron neutrinos. It's interesting to note that it is the different situation in the Sun and in the Earth that makes V-n effectively turned off and turned on respectively. This observation makes the scenario of the super-light sterile neutrino quite interesting.
WOS关键词	OSCILLATIONS ; SPECTROSCOPY
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000347876200003
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49859]
专题	中国科学院近代物理研究所
通讯作者	Liao, Wei
作者单位	E China Univ Sci & Technol, Sch Sci, Inst Modern Phys, Shanghai 200237, Peoples R China
推荐引用方式 GB/T 7714	Liao, Wei,Luo, Yuchen,Wu, Xiao-Hong. Effect of interaction with neutrons in matter on flavor conversion of super-light sterile neutrino with active neutrino[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014.
APA	Liao, Wei,Luo, Yuchen,&Wu, Xiao-Hong.(2014).Effect of interaction with neutrons in matter on flavor conversion of super-light sterile neutrino with active neutrino.JOURNAL OF HIGH ENERGY PHYSICS.
MLA	Liao, Wei,et al."Effect of interaction with neutrons in matter on flavor conversion of super-light sterile neutrino with active neutrino".JOURNAL OF HIGH ENERGY PHYSICS (2014).