- Physical Review Journals
All JournalsPhysics Magazine
Access Provided by Xinjiang University

Physical Review D

Export citation

Export citation

Choose format for download:

Download Citation
  • Access by Xinjiang University

CP violation from surface terms in the electroweak theory without fermions

Arthur Lue*

Mark Trodden†

  • Department of Physics, Columbia University, New York, New York 10027

  • Particle Astrophysics Theory Group, Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106-7079

  • *Email address: lue@cuphyb.phys.columbia.edu
  • †Email address: trodden@theory1.phys.cwru.edu
PDF

Phys. Rev. D 58, 057901 – Published 5 August, 1998

DOI: https://doi.org/10.1103/PhysRevD.58.057901

Abstract

We consider the effect of adding a CP-odd, θFF̃ term to the electroweak Lagrangian without fermions. This term affects neither the classical nor perturbative quantum physics, but can be observed through nonperturbative quantum processes. We give an example of such a process by modifying the theory so that it supports Higgs-winding solitons, and show that the rates of decay of these solitons to specific final states are CP violating. We also discuss how the CP symmetry is restored when fermions are included.

View figure in article

References (12)

  1. G. ’t Hooft, Phys. Rev. Lett. 37, 8 (1976); Phys. Rev. D 14, 3432 (1976); ibid.18, 2199 (1978).
  2. R. Jackiw and C. Rebbi, Phys. Rev. Lett. 37, 172 (1976); C. G. Callen, R. F. Daschen, and D. J. Gross, Phys. Lett. 63B, 334 (1976).
  3. V. Baluni, Phys. Rev. D 19, 2227 (1979); R. J. Crewther, P. DiVecchia, G. Veneziano, and E. Witten, Phys. Lett. 88B, 123 (1979); ibid.91B, 487 (1980); ibid.H. J. Schnitzer, 139B, 217 (1984).
  4. K. Fujikawa, Phys. Rev. Lett. 42, 1195 (1979).
  5. T. H. R. Skyrme, Proc. R. Soc. London A260, 127 (1961).
  6. J. M. Gipson and H. C. Tze, Nucl. Phys. B183, 524 (1981); ibid.J. M. Gipson, B231, 365 (1984).
  7. J. Ambjorn and V. A. Rubakov, Nucl. Phys. B256, 434 (1985); ibid.V. A. Rubakov, B256, 509 (1985).
  8. E. D’Hoker and E. Farhi, Phys. Lett. 134B, 86 (1984); Nucl. Phys. B241, 109 (1984).
  9. E. Farhi, J. Goldstone, S. Gutmann, K. Rajagopal, and R. Singleton, Jr., Phys. Rev. D 51, 4561 (1995).
  10. G. S. Adkins, C. R. Nappi, and E. Witten, Nucl. Phys. B228, 552 (1983).
  11. E. Witten, Phys. Rev. Lett. 38, 121 (1977); B. Ratra and L. G. Yaffe, Phys. Lett. B 205, 57 (1988).
  12. V. A. Rubakov, B. E. Stern, and P. G. Tinyakov, Phys. Lett. 160B, 292 (1985).

Outline

Information

Phys. Rev. D 58, 057901– Published 5 August, 1998
  • Received 17 February 1998

© 1998 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation