Knowledge Management System of Institute of Theoretical Physics, CAS
Du, Yong; Yu, Jiang-Hao
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| Neutrino non-standard interactions meet precision measurements of N-eff | |
| Source Publication | JOURNAL OF HIGH ENERGY PHYSICS
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| Language | 英语 |
| Keyword | NONEQUILIBRIUM CORRECTIONS COHERENT CONSTRAINTS NUCLEUS SCATTERING MASSLESS NEUTRINOS STANDARD MODEL DARK-MATTER PHYSICS OSCILLATIONS SPECTRA SEARCH |
| Abstract | The 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 | |
| ISSN | 1029-8479 |
| Issue | 5Pages:58 |
| Cooperation Status | 国内 |
| Subject Area | Physics |
| MOST Discipline Catalogue | Physics, Particles & Fields |
| DOI | 10.1007/JHEP05(2021)058 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27412 |
| Collection | SCI期刊论文 |
| Affiliation | 1.[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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