Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Majorana CP-Violating Phases, RG Running of Neutrino Mixing Parameters
  and Charged Lepton Flavour Violating Decays   We consider the MSSM with see-saw mechanism of neutrino mass generation and
soft SUSY breaking with flavour-universal boundary conditions at the GUT scale,
in which the lepton flavour violating (LFV) decays \mu\to e + \gamma, \tau\to
\mu + \gamma, etc.,are predicted with rates that can be within the reach of
present and planned experiments. These predictions depend critically on the
matrix of neutrino Yukawa couplings \bf{Y_{\nu}} which can be expressed in
terms of the light and heavy right-handed (RH) neutrino masses, neutrino mixing
matrix U_{PMNS}, and an orthogonal matrix \bf{R}. We investigate the effects of
Majorana CP-violation phases in U_{PMNS}, and of the RG running of light
neutrino masses and mixing angles from M_Z to the RH Majorana neutrino mass
scale M_R, on the predictions for the rates of LFV decays \mu\to e + \gamma,
\tau \to \mu + \gamma and \tau\to e + \gamma. Results for neutrino mass
spectrum with normal hierarchy, values of the lightest \nu-mass in the range 0
\leq m_1 \leq 0.30 eV, and quasi-degenerate heavy RH Majorana neutrinos in the
cases of \bf{R} = \bf{1} and complex matrix \bf{R} are presented. We find that
the effects of the Majorana CP-violation phases and of the RG evolution of
neutrino mixing parameters can change by few orders of magnitude the predicted
rates of the LFV decays \mu \to e + \gamma and \tau \to e + \gamma. The impact
of these effects on the \tau \to \mu + \gamma decay rate is typically smaller
and only possible for m_1 > 0.10 eV. If the RG running effects are negligible,
in a large region of soft SUSY breaking parameter space the ratio of the
branching ratios of the \mu \to e + \gamma and \tau \to e + \gamma (\tau \to
\mu + \gamma) decays is entirely determined in the case of \bf{R} \cong \bf{1}
by the values of the neutrino mixing parameters at M_Z.

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The categories of this paper are: adap-org
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom