- 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

Metastability bounds on flavor-violating trilinear soft terms in the MSSM

Jae-hyeon Park

  • Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany

PDF

Phys. Rev. D 83, 055015 – Published 23 March, 2011

DOI: https://doi.org/10.1103/PhysRevD.83.055015

Abstract

The vacuum stability bounds on flavor-violating trilinear soft terms are revisited from the viewpoint that one should not ban a standard-model–like false vacuum as long as it is long-lived on a cosmological time scale. The vacuum transition rate is evaluated numerically by searching for the bounce configuration. Like stability, a metastability bound does not decouple even if sfermion masses grow. Apart from being more generous than stability, the new bounds are largely independent of Yukawa couplings except for the stop trilinears. With vacuum longevity imposed on otherwise arbitrary LR insertions, it is found that a super flavor factory has the potential to probe sparticle masses up to a few TeV through B and τ physics whereas the MEG experiment might cover a far wider range. In the stop sector, metastability is more restrictive than any existing experimental constraint such as from electroweak precision data. Also discussed are dependency on other parameters and reliability under radiative corrections.

View figure in article

Article Text

References (38)

  1. G. L. Kane, P. Ko, H. b. Wang, C. Kolda, J.-h. Park, and L. T. Wang, Phys. Rev. D 70, 03505 (2004); Phys. Rev. Lett. 90, 141803 (2003).
  2. F. Gabbiani, E. Gabrielli, A. Masiero, and L. Silvestrini, Nucl. Phys. B477, 321 (1996).
  3. J. M. Frere, D. R. T. Jones, and S. Raby, Nucl. Phys. B222, 11 (1983); L. Alvarez-Gaume, J. Polchinski, and M. B. Wise, B221, 495 (1983); J. P. Derendinger and C. A. Savoy, B237, 307 (1984); C. Kounnas, A. B. Lahanas, D. V. Nanopoulos, and M. Quiros, B236, 438 (1984).
  4. J. A. Casas and S. Dimopoulos, Phys. Lett. B 387, 107 (1996).
  5. M. Bona et al., INFN Pisa, Italy, 2007, (INFN Publishing Services, Pisa, 2007).
  6. M. Quiros, Helv. Phys. Acta 67, 451 (1994).
  7. A. Kusenko, P. Langacker, and G. Segre, Phys. Rev. D 54, 5824 (1996).
  8. M. S. Carena, M. Quiros, and C. E. M. Wagner, Phys. Lett. B 380, 81 (1996); M. Carena, G. Nardini, M. Quiros, and C. E. M. Wagner, Nucl. Phys. B812, 243 (2009).
  9. M. Dine, L. Randall, and S. D. Thomas, Phys. Rev. Lett. 75, 398 (1995); J. R. Ellis, J. Giedt, O. Lebedev, K. Olive, and M. Srednicki, Phys. Rev. D 78, 075006 (2008).
  10. M. Claudson, L. J. Hall, and I. Hinchliffe, Nucl. Phys. B228, 501 (1983).
  11. M. Endo, K. Hamaguchi, and K. Nakaji, J. High Energy Phys. 11 (2010) 004; J. Hisano and S. Sugiyama, Phys. Lett. B 696, 92 (2011).
  12. A. Riotto and E. Roulet, Phys. Lett. B 377, 60 (1996).
  13. A. Strumia, Nucl. Phys. B482, 24 (1996).
  14. J. L. Evans, D. E. Morrissey, and J. D. Wells, Phys. Rev. D 80, 095011 (2009).
  15. J. Hisano, M. Nagai, M. Senami, and S. Sugiyama, Phys. Lett. B 659, 361 (2008); J. Hisano, M. Nagai, S. Sugiyama, and T. T. Yanagida, 665, 237 (2008).
  16. L. J. Hall, V. A. Kostelecky, and S. Raby, Nucl. Phys. B267, 415 (1986).
  17. S. R. Coleman, Phys. Rev. D 15, 2929 (1977); 16, 1248(E) (1977); C. G. Callan, Jr. and S. R. Coleman, 16, 1762 (1977).
  18. S. R. Coleman, V. Glaser, and A. Martin, Commun. Math. Phys. 58, 211 (1978).
  19. S. P. Martin, Phys. Rev. D 65, 116003 (2002); 66, 096001 (2002).
  20. E. J. Weinberg, Phys. Rev. D 47, 4614 (1993).
  21. J. A. Casas, A. Lleyda, and C. Munoz, Nucl. Phys. B471, 3 (1996).
  22. T. Konstandin and S. J. Huber, J. Cosmol. Astropart. Phys. 06 (2006) 021.
  23. J.-h. Park, J. Cosmol. Astropart. Phys. 02 (2011) 023.
  24. A. Wächter and L. T. Biegler, Math. Program. 106, 25 (2005); the package and documentation are available at https://projects.coin-or.org/Ipopt.
  25. B. C. Allanach, Comput. Phys. Commun. 143, 305 (2002).
  26. S. P. Martin, in G. L. KaneAdvanced Series on Directions in High Energy Physics, edited by (World Scientific, Singapore, 1998), Vol. 18.
  27. M. L. Brooks et al. (MEGA Collaboration), Phys. Rev. Lett. 83, 1521 (1999).
  28. A. Baldini et al., Research Proposal to INFN, September 2002, http://meg.web.psi.ch/.
  29. B. Aubert et al. (BABAR Collaboration), Phys. Rev. Lett. 104, 021802 (2010).
  30. T. Aushev et al., arXiv:1002.5012.
  31. M. Ciuchini, A. Masiero, P. Paradisi, L. Silvestrini, S. K. Vempati, and O. Vives, Nucl. Phys. B783, 112 (2007).
  32. M. Artuso et al., Eur. Phys. J. C 57, 309 (2008).
  33. P. Ko, J.-h. Park, and G. Kramer, Eur. Phys. J. C 25, 615 (2002).
  34. A. Crivellin and U. Nierste, Phys. Rev. D 81, 095007 (2010).
  35. S. Heinemeyer, W. Hollik, F. Merz, and S. Penaranda, Eur. Phys. J. C 37, 481 (2004).
  36. J. J. Cao, G. Eilam, M. Frank, K. Hikasa, G. L. Liu, I. Turan, and J. M. Yang, Phys. Rev. D 75, 075021 (2007).
  37. A. Crivellin and U. Nierste, Phys. Rev. D 79, 035018 (2009).
  38. A. Crivellin and J. Girrbach, Phys. Rev. D 81, 076001 (2010).

Outline

Information

Phys. Rev. D 83, 055015– Published 23 March, 2011
  • Received 27 January 2011

© 2011 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation