Nonrelativistic QED and next-to-leading hyperfine splitting in positronium

被引：20
作者：
Labelle, P [1 ]
Zebarjad, SM [1 ]
Burgess, CP [1 ]
机构：
[1] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada
来源：
PHYSICAL REVIEW D | 1997年 / 56卷 / 12期
关键词：
D O I：
10.1103/PhysRevD.56.8053
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We compute the next-to-leading O(m alpha(5)) contribution to the hyperfine splitting in positronium within the framework of nonrelativistic QED (NRQED). When applied to the ground state, our calculation reproduces the known result. providing a further test of NRQED techniques. In addition to providing a very simple method of calculation of this standard result, we also obtain new expressions for excited states of positronium with negligible additional effort. Our calculation requires the complete next-to-leading matching of the lowest-dimension NRQED four-Fermi couplings. [S0556-2821(97)05522-7].
引用
收藏
页码：8053 / 8061
页数：9
相关论文
共 12 条
  • [1] EFFECTIVE LAGRANGIANS FOR BOUND-STATE PROBLEMS IN QED, QCD, AND OTHER FIELD-THEORIES
    CASWELL, WE
    LEPAGE, GP
    [J]. PHYSICS LETTERS B, 1986, 167 (04) : 437 - 442
  • [2] 2-BODY SYSTEM IN QUANTUM ELECTRODYNAMICS - ENERGY LEVELS OF POSITRONIUM
    FULTON, T
    MARTIN, PC
    [J]. PHYSICAL REVIEW, 1954, 95 (03): : 811 - 822
  • [3] GRINSTEIN B, HEPPH9703298
  • [4] MUONIUM AND POSITRONIUM POTENTIALS
    GUPTA, SN
    REPKO, WW
    SUCHYTA, CJ
    [J]. PHYSICAL REVIEW D, 1989, 40 (12): : 4100 - 4104
  • [5] HOANG A, MCGILL9715
  • [6] ELECTRODYNAMIC DISPLACEMENT OF ATOMIC ENERGY LEVELS .3. THE HYPERFINE STRUCTURE OF POSITRONIUM
    KARPLUS, R
    KLEIN, A
    [J]. PHYSICAL REVIEW, 1952, 87 (05): : 848 - 858
  • [7] Radiative corrections to the muonium hyperfine structure: The alpha(2)(Z alpha) correction
    Kinoshita, T
    Nio, M
    [J]. PHYSICAL REVIEW D, 1996, 53 (09): : 4909 - 4929
  • [8] Kinoshita T., 1990, QUANTUM ELECTRODYNAM, P81
  • [9] LABELLE P, 1994, THESIS CORNELL U
  • [10] LABELLE P, MCGILL9641
12