Relaxing axions

被引:4
作者
Barr, SM [1 ]
机构
[1] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA
关键词
D O I
10.1016/S0370-2693(99)00368-8
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A mechanism for lifting the cosmological upper bound on the axion decay constant, f(a), is proposed. It entails the near masslessness of the radial mode whose vacuum expectation value is f(a). Energy in the coherent oscillations of the axion field in the early universe gets fed into the motion of the radial mode, from which it is then redshifted away. It is found that the initial value of f(a) can be at scales between 2x10(14) GeV and 10(16) GeV. This evolves with time to values close to the Planck scale. It is suggested that the nearly massless radial mode might play the role of quintessence. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:92 / 97
页数:6
相关论文
共 19 条
  • [11] Dynamical supersymmetry breaking
    Nelson, AE
    [J]. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1998, 62 : 261 - 265
  • [12] OZER M, 1987, NUCL PHYS B, V287, P797
  • [13] PECCEI RD, 1989, CP VIOLATION, P503
  • [14] COSMOLOGY OF THE INVISIBLE AXION
    PRESKILL, J
    WISE, MB
    WILCZEK, F
    [J]. PHYSICS LETTERS B, 1983, 120 (1-3) : 127 - 132
  • [15] COSMOLOGICAL CONSEQUENCES OF A ROLLING HOMOGENEOUS SCALAR FIELD
    RATRA, B
    PEEBLES, PJE
    [J]. PHYSICAL REVIEW D, 1988, 37 (12): : 3406 - 3427
  • [16] SAVING THE INVISIBLE AXION
    STEINHARDT, PJ
    TURNER, MS
    [J]. PHYSICS LETTERS B, 1983, 129 (1-2) : 51 - 56
  • [17] NEW LIGHT BOSON
    WEINBERG, S
    [J]. PHYSICAL REVIEW LETTERS, 1978, 40 (04) : 223 - 226
  • [18] WILCZEK F, 1978, PHYS REV LETT, V40, P271
  • [19] YI SY, 1984, PHYS REV D, V24, P1725