Dai, WM (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
; Dai, WM (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
文章类型:
Article
英文摘要:
We investigate constraints on Lorentz invariance violation in the neutrino sector from a joint analysis of big bang nucleosynthesis and the cosmic microwave background. The effect of Lorentz invariance violation during the epoch of big bang nucleosynthesis changes the predicted helium-4 abundance, which influences the power spectrum of the cosmic microwave background at the recombination epoch. In combination with the latest measurement of the primordial helium-4 abundance, the Planck 2015 data of the cosmic microwave background anisotropies give a strong constraint on the deformation parameter since adding the primordial helium measurement breaks the degeneracy between the deformation parameter and the physical dark matter density.
类目[WOS]:
Physics, Particles & Fields
关键词[WOS]:
PHENOMENOLOGY
; ANISOTROPIES
项目资助者:
National Natural Science Foundation of China [11575272, 11690021, 11690022, 11335012, 11375247, 11435006, 91436107]
; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB23030100, XDB21010100]
; Key Research Program of Frontier Sciences, CAS
Dai, WM,Guo, ZK,Cai, RG,et al. Lorentz invariance violation in the neutrino sector: a joint analysis from big bang nucleosynthesis and the cosmic microwave background[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(6):386.
