Final report of the E821 muon anomalous magnetic moment measurement at BNL
| Autor: | E. P. Sichtermann, M. F. Hare, X. Huang, D. W. Hertzog, P. T. Debevec, C. S. Özben, Frederick Gray, L. R. Sulak, O. Rind, A. Yamamoto, A. Lam, I. Logashenko, C. J. G. Onderwater, L. Duong, B. Bousquet, P. von Walter, H. N. Brown, E. P. Solodov, J. M. Paley, S. K. Dhawan, Yuri F. Orlov, M. Sossong, G. T. Danby, I. Kronkvist, Klaus-Peter Jungmann, S. Giron, R. M. Carey, D. Kawall, Yu. M. Shatunov, Masahiko Iwasaki, D. Urner, J. Pretz, Y. Mizumachi, S. Sedykh, T. Qian, F. J. M. Farley, J. P. Miller, M. Grosse-Perdekamp, D. Nikas, C. Timmermans, D.N. Grigoriev, G.V. Fedotovich, G. zu Putlitz, S. I. Redin, V. P. Druzhinin, B. L. Roberts, P. Cushman, Rasmus Larsen, B.I. Khazin, D. Zimmerman, M. Kawamura, H. Deng, G. W. Bennett, D. Winn, C. C. Polly, N.M. Ryskulov, J. Kindem, F. Krienen, R. Prigl, J. Mi, R. McNabb, William Deninger, Wuzheng Meng, Y. Y. Lee, Gerry Bunce, William Morse, M. Deile, P. M. Shagin, Alexei Trofimov, E. Efstathiadis, A. Steinmetz, Yannis K. Semertzidis, A. Grossmann, D. Warburton, Q. Peng, Vernon W. Hughes |
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| Přispěvatelé: | Research unit Nuclear & Hadron Physics |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Physics
HADRONIC CONTRIBUTIONS Nuclear and High Energy Physics Particle physics Large Hadron Collider Muon Anomalous magnetic dipole moment G-2 EXPERIMENT SCATTERING CONTRIBUTION Hadron E(+)E(-) ANNIHILATION ELECTROMAGNETIC INTERACTIONS Standard deviation Standard Model Nuclear physics BOHR MAGNETONS BY-LIGHT CONTRIBUTION High Energy Physics::Experiment Vacuum polarization STORAGE-RING MAGNET PRECISE MEASUREMENT Anomaly (physics) ELECTROWEAK CORRECTIONS |
| Zdroj: | Physical Review D, 73(7). American Physical Society Physical Review D, 73(7):072003. AMER PHYSICAL SOC |
| ISSN: | 2470-0029 1550-7998 |
| Popis: | We present the final report from a series of precision measurements of the muon anomalous magnetic moment, a(mu)=(g-2)/2. The details of the experimental method, apparatus, data taking, and analysis are summarized. Data obtained at Brookhaven National Laboratory, using nearly equal samples of positive and negative muons, were used to deduce a(mu)(Expt)=11659208.0(5.4)(3.3)x10(-10), where the statistical and systematic uncertainties are given, respectively. The combined uncertainty of 0.54 ppm represents a 14-fold improvement compared to previous measurements at CERN. The standard model value for a(mu) includes contributions from virtual QED, weak, and hadronic processes. While the QED processes account for most of the anomaly, the largest theoretical uncertainty, approximate to 0.55 ppm, is associated with first-order hadronic vacuum polarization. Present standard model evaluations, based on e(+)e(-) hadronic cross sections, lie 2.2-2.7 standard deviations below the experimental result. |
| Databáze: | OpenAIRE |
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