Limit on the anisotropy of the one-way maximum attainable speed of the electron

Journal Article · 12 February 2020 · Physical Review D

DOI: https://doi.org/10.1103/PhysRevD.101.032004 · OSTI ID:1618300

Bergan, W. ^[1]; Forster, M. J.  ^[1]; Khachatryan, V. ^[1]; Rider, N. ^[1]; Rubin, D. L. ^[1]; Vlahovic, B.  ^[2]; Wojtsekhowski, B. ^[3]

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1. Cornell Univ., Ithaca, NY (United States)
2. North Carolina Central Univ., Durham, NC (United States)
3. College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

We report here the first experimental result for the anisotropy of the one-way maximum attainable speed of the electron, $$\vec{\Delta c_{1,e}}$$, obtained via the study of a sidereal time dependence of a difference between the electron and positron beam momenta in the CESR storage ring at Cornell University. At 95 percent confidence, an upper limit for the component of $$\Delta \vec {c}_{1,e}/c$$ perpendicular to Earth's rotational axis is found to be $$5.5 \times 10^{-15}$$.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: National Science Foundation (NSF); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
• OSTI ID: 1618300
• Report Number(s): DOE/OR/23177--4971; JLAB-PHY--20-3125; arXiv:2001.00999
• Journal Information: Physical Review D, Journal Name: Physical Review D Journal Issue: 3 Vol. 101; ISSN PRVDAQ; ISSN 2470-0010
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English