Measurement of the hyperfine structure of antihydrogen

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:214

Article; Proceedings Paper

Widmann, E ; Hayano, RS ; Hori, M ; Yamazaki, T

关键词: antihydrogen;    hyperfine structure;    CPT symmetry;   

DOI  :  10.1016/j.nimb.2003.08.021

来源: Elsevier

【 摘 要 】

Among the best measured quantities in physics is the microwave transition between the ground-state hyperfine levels of the hydrogen atom at nu(HF) = 1.42 GHz with deltanu(HF)/nu(HF) - 10(-12). A measurement of nu(HF) for antihydrogen therefore constitutes a sensitive test of CPT symmetry. To the leading order, nu(HF)((H) over bar) is directly proportional to the magnetic moment of the antiproton, which is experimentally known only to 0.3%. This paper describes a planned measurement of nu(HF) for antihydrogen with an accuracy better than 10(-6) using atomic beams. (C) 2003 Elsevier B.V. All rights reserved.

【 授权许可】

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