| Oscillating features in the electromagnetic structure of the neutron | |
| 2021-11-01 | |
| Source Publication | Nature Physics
 |
| ISSN | 1745-2473 |
| Volume | 17Issue:11Pages:1200-1204 |
| Abstract | The complicated structure of the neutron cannot be calculated using first-principles calculations due to the large colour charge of quarks and the self-interaction of gluons. Its simplest structure observables are the electromagnetic form factors1, which probe our understanding of the strong interaction. Until now, a small amount of data has been available for the determination of the neutron structure from the time-like kinematical range. Here we present measurements of the Born cross section of electron–positron annihilation reactions into a neutron and anti-neutron pair, and determine the neutron’s effective form factor. The data were recorded with the BESIII experiment at centre-of-mass energies between 2.00 and 3.08 GeV using an integrated luminosity of 647.9 pb−1. Our results improve the statistics on the neutron form factor by more than a factor of 60 over previous measurements, demonstrating that the neutron form factor data from annihilation in the time-like regime is on par with that from electron scattering experiments. The effective form factor of the neutron shows a periodic behaviour, similar to earlier observations of the proton form factor. Future works—both theoretical and experimental—will help illuminate the origin of this oscillation of the electromagnetic structure observables of the nucleon. © 2021, The Author(s), under exclusive licence to Springer Nature Limited. |
| Keyword | Calculations Electronscattering Germaniumcompounds Neutrons Complicatedstructures Electromagneticformfactors Electromagneticstructure Firstprinciplecalculations Formfactors Measurementsof Neutronformfactors Self interactions Simplestructures Stronginteraction |
| Publisher | Nature Research |
| DOI | 10.1038/s41567-021-01345-6 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | 20214611154299 |
| EI Classification Number | 921 Mathematics ; 921.6 Numerical Methods |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/469740 |
| Collection | 兰州大学 |
| Affiliation | 1.G.I. Budker Institute of Nuclear Physics (BINP) SB RAS, Novosibirsk, Russia; 2.Uppsala University, Uppsala, Sweden; 3.Helmholtz Institute Mainz, Mainz, Germany; 4.Ruhr-University Bochum, Bochum, Germany; 5.Johannes Gutenberg University of Mainz, Mainz, Germany; 6.University of Turin, Turin, Italy; 7.INFN, Turin, Italy; 8.University of Science and Technology of China, Hefei, China; 9.State Key Laboratory of Particle Detection and Electronics, Beijing, China; 10.Indian Institute of Technology Madras, Chennai, India; 11.University of Jinan, Jinan, China; 12.Southeast University, Nanjing, China; 13.Joint Institute for Nuclear Research, Dubna, Russia; 14.INFN Laboratori Nazionali di Frascati, Frascati, Italy; 15.INFN Sezione di Ferrara, Ferrara, Italy; 16.Peking University, Beijing, China; 17.University of Muenster, Muenster, Germany; 18.Carnegie Mellon University, Pittsburgh; PA, United States; 19.Wuhan University, Wuhan, China; 20.University of Chinese Academy of Sciences, Beijing, China; 21.Istanbul Bilgi University, Istanbul, Turkey; 22.Central China Normal University, Wuhan, China; 23.Nanjing University, Nanjing, China; 24.Institute of Modern Physics, Lanzhou, China; 25.Hunan University, Changsha, China; 26.Nankai University, Tianjin, China; 27.Liaoning University, Shenyang, China; 28.Zhengzhou University, Zhengzhou, China; 29.University of Eastern Piedmont, Alessandria, Italy; 30.University of South China, Hengyang, China; 31.University of Ferrara, Ferrara, Italy; 32.University of Manchester, Manchester, United Kingdom; 33.University of Minnesota, Minneapolis; MN, United States; 34.GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany; 35.Beihang University, Beijing, China; 36.Guangxi University, Nanning, China; 37.Indiana University, Bloomington; IN, United States; 38.Nanjing Normal University, Nanjing, China; 39.Shandong Normal University, Jinan, China; 40.Fudan University, Shanghai, China; 41.Shandong University, Jinan, China; 42.Henan Normal University, Xinxiang, China; 43.University of Hawaii, Honolulu; HI, United States; 44.Suranaree University of Technology, Nakhon Ratchasima, Thailand; 45.South China Normal University, Guangzhou, China; 46.University of the Punjab, Lahore, Pakistan; 47.Huangshan College, Huangshan, China; 48.KVI-CART, University of Groningen, Groningen, Netherlands; 49.Shanxi Normal University, Linfen, China; 50.Justus-Liebig-Universität Giessen, II. Physikalisches Institut, Giessen, Germany; 51.Qufu Normal University, Qufu, China; 52.Liaoning Normal University, Dalian, China; 53.Beijing Institute of Petrochemical Technology, Beijing, China; 54.Lanzhou University, Lanzhou, China; 55.Tsinghua University, Beijing, China; 56.Sun Yat-Sen University, Guangzhou, China; 57.Sichuan University, Chengdu, China; 58.Shanxi University, Taiyuan, China; 59.Henan University of Science and Technology, Luoyang, China; 60.Soochow University, Suzhou, China; 61.Zhejiang University, Hangzhou, China; 62.University of Oxford, Oxford, United Kingdom; 63.INFN Sezione di Perugia, Perugia, Italy; 64.COMSATS University Islamabad, Lahore, Pakistan; 65.University of Perugia, Perugia, Italy; 66.Guangxi Normal University, Guilin, China; 67.Hunan Normal University, Changsha, China; 68.Jilin University, Changchun, China; 69.Near East University, Nicosia, North Cyprus, Mersin, Turkey; 70.North China Electric Power University, Beijing, China; 71.Hangzhou Normal University, Hangzhou, China; 72.Shanghai Jiao Tong University, Shanghai, China; 73.China Center of Advanced Science and Technology, Beijing, China; 74.Xinyang Normal University, Xinyang, China; 75.University of Science and Technology Liaoning, Anshan, China; 76.The Novosibirsk State University, Novosibirsk, Russia; 77.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China; 78.The Moscow Institute of Physics and Technology, Moscow, Russia; 79.School of Physics and Electronics, Hunan University, Changsha, China; 80.Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai, China; 81.Goethe University Frankfurt, Frankfurt am Main, Germany; 82.Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou, China; 83.Institute of Physics and Technology, Ulaanbaatar, Mongolia; 84.Istanbul Arel University, Istanbul, Turkey; 85.Department of Physics, Harvard University, Cambridge; MA, United States; 86.The NRC ‘Kurchatov Institute’, PNPI, Gatchina, Russia; 87.Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education; Shanghai Key Laboratory for Particle Physics and Cosmology, Institute of Nuclear and Particle Physics, Shanghai, China; 88.Bogazici University, Istanbul, Turkey |
| Recommended Citation GB/T 7714 | Achasov, M.N.,Adlarson, P.,Ahmed, S.,et al. Oscillating features in the electromagnetic structure of the neutron[J]. Nature Physics,2021,17(11):1200-1204. |
| APA | Achasov, M.N..,Adlarson, P..,Ahmed, S..,Albrecht, M..,Aliberti, R..,...&S.Y., Li.(2021).Oscillating features in the electromagnetic structure of the neutron.Nature Physics,17(11),1200-1204. |
| MLA | Achasov, M.N.,et al."Oscillating features in the electromagnetic structure of the neutron".Nature Physics 17.11(2021):1200-1204. |
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