| Measurements of the Electric and Magnetic Form Factors of the Neutron for Timelike Momentum Transfer | |
| 2023-04-14 | |
| Source Publication | Physical Review Letters
 |
| ISSN | 0031-9007 |
| Volume | 130Issue:15 |
| Abstract | We present the first measurements of the electric and magnetic form factors of the neutron in the timelike (positive q2) region as function of four-momentum transfer. We explored the differential cross sections of the reaction e+e-→n¯n with data collected with the BESIII detector at the BEPCII accelerator, corresponding to an integrated luminosity of 354.6 pb-1 in total at twelve center-of-mass energies between s=2.0-2.95 GeV. A relative uncertainty of 18% and 12% for the electric and magnetic form factors, respectively, is achieved at s=2.3935 GeV. Our results are comparable in accuracy to those from electron scattering in the comparable spacelike region of four-momentum transfer. The electromagnetic form factor ratio Rem|GE|/|GM| is within the uncertainties close to unity. We compare our result on |GE| and |GM| to recent model predictions, and the measurements in the spacelike region to test the analyticity of electromagnetic form factors. © 2023 authors. Published by the American Physical Society. |
| Keyword | Approximation theory Electron scattering Momentum Center-of-mass energies Centre-of-mass energies Differential cross-sections Electromagnetic form factors Integrated luminosity Magnetic form factor Measurements of Model prediction Relative uncertainty Uncertainty |
| Publisher | American Physical Society |
| DOI | 10.1103/PhysRevLett.130.151905 |
| Indexed By | EI |
| Language | 英语 |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| WOS ID | WOS:000987465400004 |
| EI Accession Number | 20231814032119 |
| EI Keywords | Momentum transfer |
| EI Classification Number | 921.6 Numerical Methods ; 931.1 Mechanics ; 932 High Energy Physics ; Nuclear Physics ; Plasma Physics |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/500786 |
| Collection | 兰州大学 |
| Affiliation | 1.Institute of High Energy Physics, Beijing; 100049, China; 2.Beihang University, Beijing; 100191, China; 3.Beijing Institute of Petrochemical Technology, Beijing; 102617, China; 4.Bochum Ruhr-University, Bochum; D-44780, Germany; 5.Carnegie Mellon University, Pittsburgh; PA; 15213, United States; 6.Central China Normal University, Wuhan; 430079, China; 7.Central South University, Changsha; 410083, China; 8.China Center of Advanced Science and Technology, Beijing; 100190, China; 9.China University of Geosciences, Wuhan; 430074, China; 10.Chung-Ang University, Seoul; 06974, Korea, Republic of; 11.COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore; 54000, Pakistan; 12.Fudan University, Shanghai; 200433, China; 13.G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk; 630090, Russia; 14.GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt; D-64291, Germany; 15.Guangxi Normal University, Guilin; 541004, China; 16.Guangxi University, Nanning; 530004, China; 17.Hangzhou Normal University, Hangzhou; 310036, China; 18.Hebei University, Baoding; 071002, China; 19.Helmholtz Institute Mainz, Staudinger Weg 18, Mainz; D-55099, Germany; 20.Henan Normal University, Xinxiang; 453007, China; 21.Henan University of Science and Technology, Luoyang; 471003, China; 22.Henan University of Technology, Zhengzhou; 450001, China; 23.Huangshan College, Huangshan; 245000, China; 24.Hunan Normal University, Changsha; 410081, China; 25.Hunan University, Changsha; 410082, China; 26.Indian Institute of Technology Madras, Chennai; 600036, India; 27.Indiana University, Bloomington; IN; 47405, United States; 28.INFN, Laboratori Nazionali di Frascati, Frascati; I-00044, Italy; 29.INFN, Sezione di Perugia, Perugia; I-06100, Italy; 30.University of Perugia, Perugia; I-06100, Italy; 31.INFN, Sezione di Ferrara, Ferrara; I-44122, Italy; 32.University of Ferrara, Ferrara; I-44122, Italy; 33.Institute of Modern Physics, Lanzhou; 730000, China; 34.Institute of Physics and Technology, Peace Avenue 54B, Ulaanbaatar; 13330, Mongolia; 35.Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica; 1000000, Chile; 36.Jilin University, Changchun; 130012, China; 37.Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz; D-55099, Germany; 38.Joint Institute for Nuclear Research, Moscow region, Dubna; 141980, Russia; 39.Justus-Liebig-Universitaet Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen; D-35392, Germany; 40.Lanzhou University, Lanzhou; 730000, China; 41.Liaoning Normal University, Dalian; 116029, China; 42.Liaoning University, Shenyang; 110036, China; 43.Nanjing Normal University, Nanjing; 210023, China; 44.Nanjing University, Nanjing; 210093, China; 45.Nankai University, Tianjin; 300071, China; 46.National Centre for Nuclear Research, Warsaw; 02-093, Poland; 47.North China Electric Power University, Beijing; 102206, China; 48.Peking University, Beijing; 100871, China; 49.Qufu Normal University, Qufu; 273165, China; 50.Shandong Normal University, Jinan; 250014, China; 51.Shandong University, Jinan; 250100, China; 52.Shanghai Jiao Tong University, Shanghai; 200240, China; 53.Shanxi Normal University, Linfen; 041004, China; 54.Shanxi University, Taiyuan; 030006, China; 55.Sichuan University, Chengdu; 610064, China; 56.Soochow University, Suzhou; 215006, China; 57.South China Normal University, Guangzhou; 510006, China; 58.Southeast University, Nanjing; 211100, China; 59.State Key Laboratory of Particle Detection and Electronics, Beijing; 100049, China; 60.Sun Yat-Sen University, Guangzhou; 510275, China; 61.Suranaree University of Technology, University Avenue 111, Nakhon Ratchasima; 30000, Thailand; 62.Tsinghua University, Beijing; 100084, China; 63.Turkish Accelerator Center Particle Factory Group, Istinye University, Istanbul; 34010, Turkey; 64.Near East University, North Cyprus, Mersin 10, Nicosia; 99138, Turkey; 65.University of Chinese Academy of Sciences, Beijing; 100049, China; 66.University of Groningen, Groningen; NL-9747 AA, Netherlands; 67.University of Hawaii, Honolulu; HI; 96822, United States; 68.University of Jinan, Jinan; 250022, China; 69.University of Manchester, Oxford Road, Manchester; M13 9PL, United Kingdom; 70.University of Muenster, Wilhelm-Klemm-Strasse 9, Muenster; 48149, Germany; 71.University of Oxford, Keble Road, Oxford; OX13RH, United Kingdom; 72.University of Science and Technology Liaoning, Anshan; 114051, China; 73.University of Science and Technology of China, Hefei; 230026, China; 74.University of South China, Hengyang; 421001, China; 75.University of the Punjab, Lahore; 54590, Pakistan; 76.University of Turin, INFN, Turin; I-10125, Italy; 77.University of Eastern Piedmont, Alessandria; I-15121, Italy; 78.INFN, Turin; I-10125, Italy; 79.Uppsala University, Box 516, Uppsala; SE-75120, Sweden; 80.Wuhan University, Wuhan; 430072, China; 81.Xinyang Normal University, Xinyang; 464000, China; 82.Yantai University, Yantai; 264005, China; 83.Yunnan University, Kunming; 650500, China; 84.Zhejiang University, Hangzhou; 310027, China; 85.Zhengzhou University, Zhengzhou; 450001, China; 86.The Moscow Institute of Physics and Technology, Moscow; 141700, Russia; 87.The Novosibirsk State University, Novosibirsk; 630090, Russia; 88.The NRC, Kurchatov Institute, PNPI, Gatchina; 188300, Russia; 89.Goethe University Frankfurt, Frankfurt am Main; 60323, Germany |
| Recommended Citation GB/T 7714 | Ablikim, M.,Achasov, M.N.,Adlarson, P.,et al. Measurements of the Electric and Magnetic Form Factors of the Neutron for Timelike Momentum Transfer[J]. Physical Review Letters,2023,130(15). |
| APA | Ablikim, M..,Achasov, M.N..,Adlarson, P..,Aliberti, R..,Amoroso, A..,...&Kabana, S..(2023).Measurements of the Electric and Magnetic Form Factors of the Neutron for Timelike Momentum Transfer.Physical Review Letters,130(15). |
| MLA | Ablikim, M.,et al."Measurements of the Electric and Magnetic Form Factors of the Neutron for Timelike Momentum Transfer".Physical Review Letters 130.15(2023). |
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