ITP OpenIR  > SCI期刊论文
Du, Yong; Yu, Jiang-Hao
Neutrino non-standard interactions meet precision measurements of N-eff
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordNONEQUILIBRIUM CORRECTIONS COHERENT CONSTRAINTS NUCLEUS SCATTERING MASSLESS NEUTRINOS STANDARD MODEL DARK-MATTER PHYSICS OSCILLATIONS SPECTRA SEARCH
AbstractThe number of relativistic species, N-eff, has been precisely calculated in the standard model, and would be measured to the percent level by CMB-S4 in future. Neutral-current non-standard interactions would affect neutrino decoupling in the early Universe, thus modifying N-eff. We parameterize those operators up to dimension-7 in the effective field theory framework, and then provide a complete, generic and analytical dictionary for the collision term integrals. From precision measurements of N-eff, the most stringent constraint is obtained for the dimension-6 vector-type neutrino-electron operator, whose scale is constrained to be above about 195 (331) GeV from Planck (CMB-S4). We find our results complementary to other experiments like neutrino coherent scattering, neutrino oscillation, collider, and neutrino deep inelastic scattering experiments.
2021
ISSN1029-8479
Issue5Pages:58
Cooperation Status国内
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1007/JHEP05(2021)058
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27412
CollectionSCI期刊论文
Affiliation1.[Du, Yong
2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
5.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China
6.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Du, Yong,Yu, Jiang-Hao. Neutrino non-standard interactions meet precision measurements of N-eff[J]. JOURNAL OF HIGH ENERGY PHYSICS,2021(5):58.
APA Du, Yong,&Yu, Jiang-Hao.(2021).Neutrino non-standard interactions meet precision measurements of N-eff.JOURNAL OF HIGH ENERGY PHYSICS(5),58.
MLA Du, Yong,et al."Neutrino non-standard interactions meet precision measurements of N-eff".JOURNAL OF HIGH ENERGY PHYSICS .5(2021):58.
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