# Implications of neutrino masses on the KL?p0?? decay

@article{Perez1999ImplicationsON,
title={Implications of neutrino masses on the KL?p0?? decay},
journal={Journal of High Energy Physics},
year={1999}
}
• G. Perez
• Published 1 July 1999
• Physics
• Journal of High Energy Physics
We calculate the different contributions to the decay $K_{L}\to \pi ^{0}\nu \bar{\nu}$ that arise if the neutrinos are massive. In spite of a chiral enhancement factor, we find that these contributions are negligibly small. Compared to the CP violating leading contributions, the CP conserving contributions related to Dirac masses are suppressed by a factor of order $(m_K m_\nu/m_W^2)^2\lesssim10^{-12}$, and those related to Majorana masses are suppressed by a factor of order \$(\alpha_W m_K m_s…
1 Citations

## Figures from this paper

EXTENDING THE STANDARD MODEL: AN UPPER BOUND FOR A NEUTRINO MASS FROM THE RARE DECAY K + ! +
The standard model seeming at a loss to account for the present experimental average rate for the rare decay K+ -> Pi+ neutrino antineutrino, I tackle the question with the extension of the

## References

SHOWING 1-10 OF 18 REFERENCES
Massive Neutrinos In Physics And Astrophysics
• Physics
• 1991
The groundbreaking discovery of nonzero neutrino masses and oscillations has put the spotlight on massive neutrinos as one of the key windows on physics beyond the standard model as well as into the
Prog
• Theor. Phys. 65, 297
• 1981
Nucl
• Phys. B400, 225 (1993); Phys. Rev. D54, 6782 (1996); A.J. Buras, Phys. Lett. B333, 476 (1994); M. Misiak and J. Urban, Phys. Lett. B451, 161 (1999); G. Buchalla and A.J. Buras, Nucl. Phys. B548, 309
• 1999
Nucl
• Phys. B528, 21
• 1998
Particle Data Group
• Eur. Phys. J
• 1998
Phys
• Lett. B440, 170
• 1998
Phys
• Lett. B423, 319
• 1998
Phys
• Rev. D39, 3322
• 1998
Phys. Rev. D39
• Phys. Rev. D39
• 1998
Phys
• Lett. B398, 163
• 1997