@Article{Casas_etal2011,
author="Casas, J. A.
and Moreno, J. M.
and Rius, N.
and Ruiz de Austri, R.
and Zaldivar, B.",
title="Fair scans of the seesaw. Consequences for predictions on LFV processes",
journal="Journal of High Energy Physics",
year="2011",
publisher="Springer",
volume="03",
number="3",
pages="034--22pp",
optkeywords="Neutrino Physics; Supersymmetric Standard Model",
abstract="We give a straightforward procedure to scan the seesaw parameter-space, using the common {\textquoteleft}{\textquoteleft}R-parametrization{\textquoteright}{\textquoteright}, in a complete way. This includes a very simple rule to incorporate the perturbativity requirement as a condition for the entries of the R-matrix. As a relevant application, we show that the somewhat propagated belief that BR(mu -> e, gamma) in supersymmetric seesaw models depends strongly on the value of theta(13) is an {\textquoteleft}{\textquoteleft}optical effect{\textquoteright}{\textquoteright} produced by incomplete scans, and does not hold after a careful analytical and numerical study. When the complete scan is done, BR(mu -> e, gamma) gets very insensitive to theta(13). This holds even if the right-handed neutrino masses are kept constant or under control (as is required for succesful leptogenesis). In most cases the values of BR(mu -> e, gamma) are larger than the experimental upper bound. Including (unflavoured) leptogenesis does not introduce any further dependence on theta(13), although decreases the typical value of BR(mu -> e, gamma).",
optnote="ISI:000289295200034",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=612), last updated on Fri, 06 May 2011 11:28:37 +0000",
issn="1126-6708",
doi="10.1007/JHEP03(2011)034",
opturl="http://arxiv.org/abs/arXiv:1010.5751",
opturl="https://doi.org/10.1007/JHEP03(2011)034",
archivePrefix="arXiv",
eprint="arXiv:1010.5751",
language="English"
}