Uncertainty in the reactor neutrino spectrum and mass hierarchy determination

doi:10.1007/JHEP10(2019)143

	Uncertainty in the reactor neutrino spectrum and mass hierarchy determination
	Ciuffoli, E 1; Evslin, J 1; Mohammed, H 1
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2019
卷号	2019 期号:10 页码:18
关键词	Neutrino Detectors and Telescopes (experiments) Oscillation
ISSN号	1029-8479
DOI	10.1007/JHEP10(2019)143
通讯作者	Ciuffoli, E.(emilio@impcas.ac.cn)
英文摘要	One of the challenges that must be overcome in order to determine the neutrino mass hierarchy using reactor neutrinos is the theoretical uncertainty in the unoscillated reactor neutrino spectrum: this is one of the reasons why, recently, it was proposed to add a near detector to the JUNO experiment. A model-independent treatment of the spectrum uncertainty will be discussed, as well as the effect that it will have on the final result. Moreover, since the neutrino spectrum depends on the chemical composition of the fuel, the spectra at the near and far detectors will be different, because they will receive neutrinos from different cores. Taking into account the time evolution of the chemical composition of the fuel in the reactor core, it is possible to reconstruct the far detector spectrum from the near detector data. We will show that the method used to reconstruct the spectrum can affect sensitivity to the mass hierarchy, however if the near detector is large enough the difference will be negligible.
资助项目	[CAS Key Research Program of Frontier Sciences] ; [NSFC MianShang grants] ; [NSFC] ; [Recruitment Program of Highend Foreign Experts]
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000491112300001
资助机构	CAS Key Research Program of Frontier Sciences ; NSFC MianShang grants ; NSFC ; Recruitment Program of Highend Foreign Experts
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136873]
专题	中国科学院近代物理研究所
作者单位	1.Institute of Modern Physics, Chinese Academy of Sciences 2.University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Ciuffoli, E,Evslin, J,Mohammed, H. Uncertainty in the reactor neutrino spectrum and mass hierarchy determination[J]. JOURNAL OF HIGH ENERGY PHYSICS,2019,2019(10):18.
APA	Ciuffoli, E,Evslin, J,&Mohammed, H.(2019).Uncertainty in the reactor neutrino spectrum and mass hierarchy determination.JOURNAL OF HIGH ENERGY PHYSICS,2019(10),18.
MLA	Ciuffoli, E,et al."Uncertainty in the reactor neutrino spectrum and mass hierarchy determination".JOURNAL OF HIGH ENERGY PHYSICS 2019.10(2019):18.