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<p>energy.</p>

<p>In that case, the <a href="page.php?w=decay_rate">decay rate</a> can be calculated with<br/>
:where  denotes the <a href="page.php?w=phase_space">phase space</a> factor,  the (squared) <a href="page.php?w=Matrix_element_%28physics%29">matrix element</a> of this nuclear decay process (according to the Feynman diagram), and  the square of the effective Majorana mass.</p>

<p>First, the effective Majorana mass can be obtained by<br/>
:where  are the (estimated) Majorana <a href="page.php?w=neutrino_mass">neutrino mass</a>es (three</p><p>
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