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arXiv 2104.03201hep-exnucl-ex
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费米实验室μ g-2实验的磁场测量与分析

Magnetic Field Measurement and Analysis for the Muon g-2 Experiment at Fermilab

T. Albahri, A. Anastasi, K. Badgley, S. Baeßler, I. Bailey, V. A. Baranov, E. Barlas-Yucel, T. Barrett, F. Bedeschi, M. Berz, M. Bhattacharya, H. P. Binney, P. … 展开作者

T. Albahri, A. Anastasi, K. Badgley, S. Baeßler, I. Bailey, V. A. Baranov, E. Barlas-Yucel, T. Barrett, F. Bedeschi, M. Berz, M. Bhattacharya, H. P. Binney, P. Bloom, J. Bono, E. Bottalico, T. Bowcock, G. Cantatore, R. M. Carey, B. C. K. Casey, D. Cauz, R. Chakraborty, S. P. Chang, A. Chapelain, S. Charity, R. Chislett, J. Choi, Z. Chu, T. E. Chupp, A. Conway, S. Corrodi, L. Cotrozzi, J. D. Crnkovic, S. Dabagov, P. T. Debevec, S. Di Falco, P. Di Meo, G. Di Sciascio, R. Di Stefano, A. Driutti, V. N. Duginov, M. Eads, J. Esquivel, M. Farooq, R. Fatemi, C. Ferrari, M. Fertl, A. T. Fienberg, A. Fioretti, D. Flay, N. S. Froemming, C. Gabbanini, M. D. Galati, S. Ganguly, A. Garcia, J. George, L. K. Gibbons, A. Gioiosa, K. L. Giovanetti, P. Girotti, W. Gohn, T. Gorringe, J. Grange, S. Grant, F. Gray, S. Haciomeroglu, T. Halewood-Leagas, D. Hampai, F. Han, J. Hempstead, A. T. Herrod, D. W. Hertzog, G. Hesketh, A. Hibbert, Z. Hodge, J. L. Holzbauer, K. W. Hong, R. Hong, M. Iacovacci, M. Incagli, P. Kammel, M. Kargiantoulakis, M. Karuza, J. Kaspar, D. Kawall, L. Kelton, A. Keshavarzi, D. Kessler, K. S. Khaw, Z. Khechadoorian, N. V. Khomutov, B. Kiburg, M. Kiburg, O. Kim, Y. I. Kim, B. King, N. Kinnaird, E. Kraegeloh, N. A. Kuchinskiy, K. R. Labe, J. LaBounty, M. Lancaster, M. J. Lee, S. Lee, B. Li, D. Li, L. Li, I. Logashenko, A. Lorente Campos, A. Lucà, G. Lukicov, A. Lusiani, A. L. Lyon, B. MacCoy, R. Madrak, K. Makino, F. Marignetti, S. Mastroianni, J. P. Miller, S. Miozzi, W. M. Morse, J. Mott, A. Nath, H. Nguyen, R. Osofsky, S. Park, G. Pauletta, G. M. Piacentino, R. N. Pilato, K. T. Pitts, B. Plaster, D. Počanić, N. Pohlman, C. C. Polly, J. Price, B. Quinn, N. Raha, S. Ramachandran, E. Ramberg, J. L. Ritchie, B. L. Roberts, D. L. Rubin, L. Santi, C. Schlesier, A. Schreckenberger, Y. K. Semertzidis, D. Shemyakin, M. W. Smith, M. Sorbara, D. Stöckinger, J. Stapleton, C. Stoughton, D. Stratakis, T. Stuttard, H. E. Swanson, G. Sweetmore, D. A. Sweigart, M. J. Syphers, D. A. Tarazona, T. Teubner, A. E. Tewsley-Booth, K. Thomson, V. Tishchenko, N. H. Tran, W. Turner, E. Valetov, D. Vasilkova, G. Venanzoni, T. Walton, A. Weisskopf, L. Welty-Rieger, P. Winter, A. Wolski, W. Wu

摘要:

费米国家加速器实验室已经测量了μ子的异常进动频率$a^{}_μ= (g^{}_μ-2)/2$,其综合精度为百万分之0.46,并在2018年首次物理运行期间收集了数据。本文报道了μ子储存环中磁场的测量。通过核磁共振系统监测磁场,并根据34.7 $^\circ$ C下球形水样品中的等效质子自旋进动频率进行校准。测量场由μ子分布加权,得到$\tildeω'^{}_p$,$ω^{}_a$ / $\tildeω'^{}_p$比值中的分母,与已知的基本常数一起产生$a^{}_μ$。运行-1数据集的$\tildeω'^{}_p$报告的不确定度为114 ppb,包括频率提取、校准、映射、跟踪和平均的不确定度贡献56 ppb,以及快速瞬变场的贡献99 ppb。

英文摘要:

The Fermi National Accelerator Laboratory has measured the anomalous precession frequency $a^{}_μ= (g^{}_μ-2)/2$ of the muon to a combined precision of 0.46 parts per million with data collected during its first physics run in 2018. This paper documents the measurement of the magnetic field in the muon storage ring. The magnetic field is monitored by nuclear magnetic resonance systems and calibrated in terms of the equivalent proton spin precession frequency in a spherical water sample at 34.7$^\circ$C. The measured field is weighted by the muon distribution resulting in $\tildeω'^{}_p$, the denominator in the ratio $ω^{}_a$/$\tildeω'^{}_p$ that together with known fundamental constants yields $a^{}_μ$. The reported uncertainty on $\tildeω'^{}_p$ for the Run-1 data set is 114 ppb consisting of uncertainty contributions from frequency extraction, calibration, mapping, tracking, and averaging of 56 ppb, and contributions from fast transient fields of 99 ppb.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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