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arXiv · hep-ph/0305195

Vanishing Effective Mass of the Neutrinoless Double Beta Decay?

Zhi-zhong Xing
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Abstract

We stress that massive neutrinos may be Majorana particles even if the effective mass of the neutrinoless double beta decay m_ee vanishes. We show that current neutrino oscillation data do allow m_ee = 0 to hold, if the Majorana CP-violating phases lie in two specific regions. Strong constraints on three neutrino masses can then be obtained. We find that the neutrino mass spectrum performs a normal hierarchy: m_1 < m_2 < m_3. A possible texture of the neutrino mass matrix is also illustrated under the m_ee = 0 condition.

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Zhi-zhong Xing. 2003-07-18. Vanishing Effective Mass of the Neutrinoless Double Beta Decay?. https://doi.org/10.1103/physrevd.68.053002

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