Lepton-number violation in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>B</mml:mi><mml:mi>s</mml:mi></mml:msub></mml:math> meson decays induced by an on-shell Majorana neutrino
Physical review. D/Physical review. D.