Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Yukawa coupling parameterization for type I+ II seesaw formula and
  applications to lepton flavor violation and leptogenesis   In the type I + II seesaw formula the mass matrix of light neutrinos m_nu
receives contributions from the exchanges of both heavy Majorana neutrinos and
SU(2)_L-triplet Higgs bosons. We propose a new parameterization for the
Dirac-type Yukawa coupling matrix of neutrinos in this case, which generalizes
the well known Casas-Ibarra parameterization to type I + II seesaw and is
useful when the triplet term in m_nu is known. Neutrino masses and mixing,
lepton flavor violation in decays like mu -> e \gamma within mSUGRA models and
leptogenesis can then be studied within this framework. We illustrate the
usefulness of our new parameterization using a number of simple examples.

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The categories of this paper are: nucl-th
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The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: cond-mat
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn