Skip to main content
SpringerLink
Log in

Enhancement of CP-violating phenomena at tree level due to heavy quark propagator singularities

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

We discuss new interesting CP-violating phenomena in scattering processes resulting from heavy quarks with masses larger than the W-mass (m q >M W ). Such a situation is connected with a singularity in the heavy quark propagator which, properly regularized, gives rise to measurable CP-odd effects. The observability of these CP-odd signals in the most representative Kobayashi-Maskawa (KM) models (like fourth generation model, left-right symmetric model and two Higgs doublet model) is investigated. We find that the necessary conditions for measurable CP-asymmetries imply the enlargement of the Standard Model (SM) in the generations of quarks. In addition a significant mixing between the fourth and the other generations is required.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. J.H. Christensen, J.W. Cronin, V.L. Fitch, R. Turlay: Phys. Rev. Lett. 13 (1964) 138

    Google Scholar 

  2. T.T. Wu, C.N. Yang: Phys. Rev. Lett. 13 (1964) 380

    Google Scholar 

  3. H. Burkhardt et al.: Phys. Lett. B 206 (1988) 169

    Google Scholar 

  4. A.B. Carter, A.I. Sanda: Phys. Rev. Lett. 45 (1980) 952 for review articles see e.g., R. Decker: Fortschr. Phys. 37 (1989) 657; E.A. Paschos, U. Türke: Phys. Rep. 178 (1989) 145

    Google Scholar 

  5. J. Bernabeu, C. Jarlskog: Z. Phys. C — Particles and Fields 8 (1981) 233

    Google Scholar 

  6. L.-L. Chau, H.-Y. Cheng: Phys. Rev. Lett. 53 (1980) 1037; L.-L. Chau, H.-Y. Cheng: Phys. Lett. B165 (1986) 429

    Google Scholar 

  7. J.F. Donoghue, G. Valencia: Phys. Rev. Lett. 58 (1986) 451; J.F. Donoghue, B.R. Holstein, G. Valencia: Phys. Lett. B178 (1986) 319; M.B. Gavela et al.: Phys. Rev. D39 (1989) 1870; M. Nowakowski, A. Pilaftsis: Mod. Phys. Lett. A4 (1989) 821

    Google Scholar 

  8. W.S. Hou, N.G. Deshpande, G. Eilam, A. Soni: Phys. Rev. Lett. 57 (1986) 1406; J. Bernabeu, A. Santamaria, M.B. Gavela: Phys. Rev. Lett. 57 (1986) 1514

    Google Scholar 

  9. M. Nowakowski, A. Pilaftsis: Z. Phys. C — Particles and Fields 42 (1989) 449; W. Bernreuther, U. Löw, J.P. Ma, O. Nachthmann: Heidelberg preprint 1989, HD-THEP-88-26

    Google Scholar 

  10. UA1 Coll. C. Albajar et al.: Z. Phys. C — Particles and Fields 37 (1988) 505; G. Altarelli, M. Diemoz, G. Martinelli, P. Nason: Nucl. Phys. B308 (1988) 724; UA2 and CDF Collaboration: 24th Recontre de Moriond (1989); UA2 Collaboration: J. Schacher: Bern preprint 1989, BUHE-89/02

    Google Scholar 

  11. U. Amaldi et al.: Phys. Rev. D 36 (1987) 1385; J. Ellis, C. Fogli: Phys. Lett. B213 (1988) 526

    Google Scholar 

  12. J. Ellis, G. Fogli: CERN preprint 1989, CERN-TH 5457/89, to appear in Phys. Lett. B

  13. S.K. Bose, E.A. Paschos: Nucl. Phys. B 169 (1980) 384; X.G. He, S. Pakvasa: Phys. Lett. B156 (1985) 236

    Google Scholar 

  14. G.S. Abram et al.: Phys. Rev. Lett. 63 (1989) 724

    Google Scholar 

  15. L. Gonzalez-Mestres, D. Perret-Gallix: L.A.P.P. preprint Annecy 1988 LAPP-EXP-88-11; K. Enqvist, K. Kainaleinen and J. Maalampi: preprint of Helsinki 1988, HU-TFT-88-38; C.T. Hill, E.A. Paschos: Fermilab. preprint, FERMILAB-PUB-89/228-T; E.A. Paschos, A. Pilaftsis, K. Zioutas: Phys. Lett. B236 (1990) 321

  16. F.A. Berends, G. Burgers, W. Hollik, W.L. van Neerven: Phys. Lett. B 203 (1988) 177; D.Y. Bardin, A. Leike, T. Riemann, M. Sachwitz: Phys. Lett. B206 (1988) 539

    Google Scholar 

  17. W. Wetzel: Nucl. Phys. B 227 (1983) 1; B.W. Lynn, R.G. Stuart: Nucl. Phys. B253 (1983) 216

    Google Scholar 

  18. K.J. Foley: Standford Linear Accelarator Center preprint 1987, SLAC-PUB-4426; A.D. Martin: Durham preprint 1989, DTP/89/04; H. Baer: Florida preprint 1989, FSU-HEP-890130

  19. F.J. Gilman, R. Kauffman: Phys. Rev. D 37 (1988) 2676

    Google Scholar 

  20. J. Schwinger: Ann. Phys. 9 (1960) 169

    Google Scholar 

  21. J. Schwinger: Phys. Rev. 74 (1948) 1439; D. Iagolnitzer: J. Math. Phys. 10 (1969) 1241

    Google Scholar 

  22. J.C. Ward: Phys. Rev. 78 (1950) 1824; Y. Takahashi: Nuovo Cimento 6 (1957) 370

    Google Scholar 

  23. See e.g., Pilkuhn in: The interaction of hadrons p. 71. Amsterdam: North-Holland 1967

    Google Scholar 

  24. See for example, H. Pilkuhn, in: Relativistic particle physics, p. 165. Berlin, Heidelberg, New York: Springer 1979

    Google Scholar 

  25. L. Maiani, in: Proc. of the 1977 International Symposium on Lepton and Photon Interactions at High Energies p. 867. (DESY, Hamburg, 1977)

    Google Scholar 

  26. Eichten et al.: Rev. Mod. Phys. 56 (1984) 579; Errata Fermilab preprint

    Google Scholar 

  27. C. Baltay et al.: Snowmass 1988, High Energy Physics in the 1990's Snowmass, Colarado, 1988; R. Diebold: Argona National Laboratory preprint 1984, ANL-HEP-CP-84-74

  28. F.J. Bottela, L. Chau: Phys. Lett. B 168 (1986) 97

    Google Scholar 

  29. Rabindra N. Mohapatra, Goran Senjanovic: Phys. Rev. D 23 (1981) 165

    Google Scholar 

  30. J.C. Pati, A. Salam: Phys. Rev. D 10 (1975) 275

    Google Scholar 

  31. Particle Data Group: Phys. Lett. B 204 (1988) 1

    Google Scholar 

  32. G. Ecker, W. Grimus: Nucl. Phys. B 258 (1985) 328

    Google Scholar 

  33. T.D. Lee: Phys. Rev. D 8 (1973) 1226

    Google Scholar 

  34. A.F. Abott, P. Sikivie, M.B. Wise: Phys. Rev. D 21 (1980) 1393; H.E. Haber, G.L. Kane, T. Sterling: Nucl. Phys. B161 (1979) 493

    Google Scholar 

  35. G.G. Athanasiu, P.J. Franzini, F.J. Gilman: Phys. Rev. D 32 (1985) 3010

    Google Scholar 

  36. S. Dawson: Nucl. Phys. B 249 (1984) 42; R.M. Godbole, S.D. Rindani: Phys. Lett. B190 (1987) 192

    Google Scholar 

  37. J.E. Pilcher, A.R. White (eds):p \(\bar p\) Options for the supercollider, University of Chicago, 1984

Download references

Author information

Authors and Affiliations

  1. Institut für Physik, Universität Dortmund, D-4600, Dortmund 50, Federal Republic of Germany

    A. Pilaftsis

Authors
  1. A. Pilaftsis
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Pilaftsis, A. Enhancement of CP-violating phenomena at tree level due to heavy quark propagator singularities. Z. Phys. C - Particles and Fields 47, 95–103 (1990). https://doi.org/10.1007/BF01551918

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01551918

Keywords

Search

Navigation